From: KR-net users group digest[SMTP:kr-net@telelists.com] Sent: Monday, July 12, 1999 12:14 AM To: kr-net digest recipients Subject: kr-net digest: July 11, 1999 KR-net users group Digest for Sunday, July 11, 1999. 1. Re: New AC 43.13-1b 2. Re: antenna electrical question 3. Re: antenna electrical question - Terra Radio 4. Alaska 5. More on Antennas 6. Carry Insurance 7. Re: D-Fly Canopy - Colors 8. Re: Carry Insurance 9. 1999 KR Gathering 10. Re: 1999 KR Gathering 11. Re: [kr-net]Hot wire 12. Re: Tailpost 13. Re: Arlington Airshow 14. Re: 1999 KR Gathering 15. Re: Arlington "99 16. Re: Carry Insurance 17. Re: 1999 KR Gathering 18. Re: antenna electrical question 19. Re: Carry Insurance 20. Re: antenna electrical question 21. Re: antenna electrical question 22. Re: antenna electrical question 23. Re: 1999 KR Gathering 24. Re: antenna electrical question 25. my indiscretion 26. Re: antenna electrical question 27. Re: Tailpost 28. Re: D-Fly Canopy - Colors 29. Re: Tailpost 30. Re: antenna electrical question ---------------------------------------------------------------------- Subject: Re: New AC 43.13-1b From: David Mullins Date: Sun, 11 Jul 1999 03:59:10 -0400 X-Message-Number: 1 Ron, No, I don't know if there is a MS word available. But what do you want for free. The government charges to get a copy. Dave Ron Lee wrote: > > At 11:23 PM 7/10/99 -0400, you wrote: > >Just a note for everyone that the new AC 43.13-1b is available (Adobe > >acrobat PDF format) for download at: > > > >http://www.moneypit.net/~pratt/ac43/ > > > >It is broken up into chapters for downloading. Be careful of hitting > >the print button as the whole book is 660 pages long. Ask me how I know? > > > > > >Dave M > >Nashua, NH > > Do you know if a MS Word version is available. I HATE Adobe Acrobat. > > Ron Lee > > --- > You are currently subscribed to kr-net as: dmullins@ici.net > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: "Mark Langford" Date: Sun, 11 Jul 1999 07:28:08 -0500 X-Message-Number: 2 Adrian Carter wrote: > Using an ohm > meter really does not tell you anything just that it does not have a > short, and it should not have. The proper instrument for matching the > transmitter to an antenna it a SWR meter That's what I suspected, but wanted to hear it from somebody that knew more than me. A ham friend has an SWR meter that I'd been planning to borrow next week. The J is tuneable via a stainless steel tuning screw threaded into the top of the shorter reflector pole. I'll probably never transmit on the thing anyway, just listen. This huge J-pole has a striking resemblence to a lightening rod, so I won't leave it plugged into the radio when I'm not listening to it either... Thanks, Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ----- Original Message ----- From: cartera To: KR-net users group Sent: Sunday, July 11, 1999 12:38 AM Subject: [kr-net] Re: antenna electrical question > Mark Langford wrote: > > > > AntennaHeads, > > > > I just built a "Weir Special" base station antenna from plans that were > > detailed in the July 88 Kitplanes article "Make Your Own Base Station > > Antenna". I figured I'd put my new Terra TX-750D to work for a little while > > to make sure I won't need to use the warranty before my plane ever flies. > > And besides, I wouldn't mind the motivation of listening to all these folks > > in the pattern at Moontown airport. Anyway, this antenna is basically 1/2" > > copper tubing in the shape of a "J" about 70" tall, with the braided part of > > the coax fastened to the bottom of the tall element(radiator), and the > > center conductor fastened to the bottom of the short element (reflector). > > That's a direct short, in my book, and not surprisingly my ohmeter reads .9 > > Ohms at the other end of the coax (50' away in my basement). Should I be > > worried about frying my new radio with this setup? The reason I ask is > > because my AmeriKing ELT has a little whip antenna that shows about 500 Ohms > > between it's terminals. I haven't powered it up yet, but I'd love to hear > > any comments that you "sparky" boys have to make. What kind of resistance > > should I be seeing? I know impedence is different from resistance, but I'm > > still concerned enough to ask before I leap. > > > > I'll detail this antenna construction later, but right now my digital > > camera's on vacation in Alaska for the week... > > > > Thanks in advance, > > > > Mark Langford, Huntsville, Alabama > > mailto:langford@hiwaay.net > > see KR2S project N56ML at http://home.hiwaay.net/~langford > > > > --- > > You are currently subscribed to kr-net as: cartera@cuug.ab.ca > > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > Hi Mark, > This is what we hams call a "J Pole" it is a fairly good antenna but not > sure what the gain is, usually for a receiver it can be any type of wire > stuck out there but for transmitting it should be matched. Using an ohm > meter really does not tell you anything just that it does not have a > short, and it should not have. The proper instrument for matching the > transmitter to an antenna it a SWR meter (standing wave ratio, cheap at > Radio Shack) how much RF is going out and how much RF coming back this > give you a ratio the more power coming back the more mismatch you have > in the antenna and can default the final amplifier in the transmitter. > Clear as mud, hey Mark! > -- > Adrian VE6AFY > Mailto:cartera@cuug.ab.ca > http://www.cuug.ab.ca/~cartera > > > --- > You are currently subscribed to kr-net as: langford@hiwaay.net > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > ---------------------------------------------------------------------- Subject: Re: antenna electrical question - Terra Radio From: jscott.pilot@juno.com Date: Sun, 11 Jul 1999 07:51:46 -0700 X-Message-Number: 3 On Sun, 11 Jul 1999 07:28:08 -0500 "Mark Langford" writes: >This huge J-pole has a striking resemblence >to a lightening rod, so I won't leave it plugged into the radio when I'm not >listening to it either... > >Thanks, > >Mark Langford, Huntsville, Alabama >mailto:langford@hiwaay.net >see KR2S project N56ML at http://home.hiwaay.net/~langford I can just see Mark at the radio shop explaining how his unfinished aircraft was struck by lightning so he can get a warranty repair on the radio. :o) BTW, I also picked up the Terra comm and Xponder package as well. After I got Mark's post last week I called Gulf Coast Avionics and they were out of stock. I put the local radio shop (Santa Fe Avionics) on the job of finding me another set. By the end of the day new units were on the way for the same price. I spent the day yesterday building wiring harnesses and installing them. Nice units. I spent about 8 hours soldering and shrink tubing everything before I went to the airport to install them. Hopefully I'll finish the annual today and have the plane flying again. Jeff Scott - Los Alamos, NM mailto:jscott.pilot@juno.com See N1213w construction and first flight at http://www.thuntek.net/~jeb/krjeff.htm ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj. ---------------------------------------------------------------------- Subject: Alaska From: RFG842@aol.com Date: Sun, 11 Jul 1999 09:56:08 EDT X-Message-Number: 4 Mark Don't forget, to be a real Sourdough you're supposed to dance with the Polar Bear and bed the Eskimo girl, not the other way around. Good luck, Bob ---------------------------------------------------------------------- Subject: More on Antennas From: Kerry Miller Date: Sun, 11 Jul 1999 09:51:12 -0500 X-Message-Number: 5 Mark et al, Just because the antenna looks like a direct short at DC doesn't mean it's a short at RF frequencies. Jim Wier could probably explain it better than me, but many antennas are designed to operate at a DC ground. At certain points in a sine wave the voltage will pass through zero, so if it's designed and built properly the RF won't see it as a short. The advantage is that local noise sources (and thunderstorms) create a signal that WILL see it as a short so it's theoretically a quieter antenna. The best way to see if you've got something wired wrong and really do have a short somewhere (assuming you don't have any test equipment) is to hook up the radio to the antenna and listen for a signal. Then, connect only the center conductor to the radio, leaving the shield disconnected. A piece of wire from the antenna crammed into the radio for a minute will work. If the signals get significantly stronger with the shield disconnected, you've probably got a short in your coax connections somewhere. Good radio-ing! Kerry Miller PS I put fuel lines in the wing roots and glassed up the wheel wells yesterday! ---------------------------------------------------------------------- Subject: Carry Insurance From: KR2616TJ@aol.com Date: Sun, 11 Jul 1999 11:37:58 EDT X-Message-Number: 6 I've been "like Mike" and been on vacation for the last 10 days or so. I got an e-mail while in the Virgin Islands that there had been a "little" mishap with the 172. The following is a discription of what I found on this mornings trip to the airport. This is a forward of an e-mail I sent earlier with the jpg attachments, sorry Dean, Doug and Mark, I didn't know if I would get the web page set up this quickly. Well, these are the pictures from this morning when I went out to the airport. The accident happened at about 4AM last Monday morning during a party at a trailer just off the airport property, which is rented from the airport FBO by two pilots. The one driving is a CFII who is/was looking for a commercial job. He was arrested for DUI. The FBO said that they were having a party when two guys and a girl (the owner of the Cavalier convertible) decided to go for a drive down the airport road. On the way back, the CFII lost control just at the top of the hill, skidded 65 before leaving the roadway, skidded 65.42 feet through the grass, went airborne 40.5 feet across an adjoining road, landed sideways, skidded an additional 62.17 feet through more grass and the chain link fence, when airborne again for 57.5 feet and landed just in front of the hangar door. The car went through the hangar door, hit the prop on the pilot side, over the landing gear, through a 6X6 treated post behind the wing, and came to rest at the rear wall of the hangar. It very nearing came out of the rear of the hangar. Both of the guys were unhurt. The girl was ejected and thrown under the plane and was nearly scalped. She underwent surgery and was released. They are lucky that the prop, wing strut or the door brace didn't decapitate them all. The airplane is going to be a total loss for the insurance. Starting at the front.......the spinner was hit along with the prop. The prop is bent and split. The case would have to cracked open to inspect the crank. The engine mount was bent and pushed through the firewall on the pilot bottom side. The firewall is a total loss. The instrument panel is crooked. The seats were out of the airplane for it's annual and were run over by the car. Headliner has wrinkles in it indicating a twist in the fuselage in the cabin area. The floor on the pilots side has waves in it. The airplane was pushed up against the 6X6 posts on the T part of the hangar on both sides. Both flaps were destroyed along with both ailerons and all linkages. The rear spar on both wings was destroyed with waves in the skin all the way to the front spar. The vertical stab was pushed through the top of the hangar bending both the VS and the rudder. The elevator attachment rivots were sheared so you can push one side of the elevator up, and the other side down. He also took out my roller tool box, some chairs, shelving, radio, speakers and misc. junk. I'm sure the driver will not get that "cherry" pilot job that he has been looking for. In the market for another spam can. Pictures at http://www.geocities.com/CapeCanaveral/Hangar/7085/kr00007.htm They are full size pictures so it will take a minute to download but ol 7460T is going to be history. Dana Overall 1999 KR Gathering host Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ---------------------------------------------------------------------- Subject: Re: D-Fly Canopy - Colors From: Michael Taglieri Date: Sun, 11 Jul 1999 04:12:58 -0400 X-Message-Number: 7 I think one reason people think the Sonex is an ugly plane is because the canopies on the prototypes are dark BROWN -- hideous things. Since the tinted canopies must affect night vision to some extent, what's the reason for having them? Is it cooler in the cockpit with a tinted one? I always wear sunglasses when flying anyway. Mike Taglieri >>The Tinting choices are: >>Clear >>Light Gray (smoke) >>Dark Gray (smoke) >>Green <-nobody ever orders this one. > ^^^^^^ > >Uh, Mine is green. Don Betchem's (now Skip Cardon's) is green. JEB's >is Green. > >It is a very light green tint. The Light Gray and Green are both >light enough to meet the FAA specs for night flight, but both also >have significant UV protection as well. Having said that, it's darned >hot under that "green" canopy during the summer. :o) I can also tell >you from experience that the night visibility through the "green" >canopy is very good. > >There are some close-up pictures of my "green" canopy on the web page >listed in my signature line if you want to compare for yourselves. > >Jeff Scott - Los Alamos, NM >mailto:jscott.pilot@juno.com >See N1213w construction and first flight at >http://www.thuntek.net/~jeb/krjeff.htm >___________________________________________________________________ >Get the Internet just the way you want it. Free software, free e-mail, >and free Internet access for a month! Try Juno Web: >http://dl.www.juno.com/dynoget/tagj. --- You are currently subscribed >to kr-net as: miket_nyc@juno.com To unsubscribe send a blank email to >leave-kr-net-17800J@telelists.com ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj. ---------------------------------------------------------------------- Subject: Re: Carry Insurance From: KR2616TJ@aol.com Date: Sun, 11 Jul 1999 14:26:01 EDT X-Message-Number: 8 Try this address, I let the period out between www & geocities. http://www.geocities.com/CapeCanaveral/Hangar/7085/kr00007.htm Dana ---------------------------------------------------------------------- Subject: 1999 KR Gathering From: KR2616TJ@aol.com Date: Sun, 11 Jul 1999 15:16:36 EDT X-Message-Number: 9 Reservation time is closing in on us for this years KR Gathering. Remember, the gathering will be held at Lake Barkley State Resort Park in far western Kentucky the weekend of Sept. 24. This location will be a great place for the whole family with boat rental, golf, miniature golf, tennis, hiking trails and the airport all located on the grounds of the park. If you are planning on attending you MUST have your reservation in before July 24 or there will be no rooms at the lodge. Additional rooms will be available in surrounding towns but no guarantees here, you're on your own. The lodge number is 1-800-325-1708. Be sure and tell them your reservation is for the KR Gathering, as they are totally booked up at this time, other than the rooms they have set aside for us. 172/car crash pictures @ http://www.geocities.com/CapeCanaveral/Hangar/7085/kr00007.htm Dana Overall 1999 KR Gathering host Richmond, KY mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ---------------------------------------------------------------------- Subject: Re: 1999 KR Gathering From: NFCKR3@aol.com Date: Sun, 11 Jul 1999 16:29:09 EDT X-Message-Number: 10 Are there any facilities at the airport? I understand that there are no facilities there, no gas, no FBO and no hangar to keep the planes in. I guess that we will need to bring tiedowns also? Skip Carden 250KB ---------------------------------------------------------------------- Subject: Re: [kr-net]Hot wire From: Ross Youngblood Date: Mon, 05 Jul 1999 22:20:17 -0700 X-Message-Number: 11 If you use the Urethane foam for the wings (per plans), you can't hot wire without possibly killing yourself, however if you use styrofoam, it's OK to hotwire. I'm afraid someone will try hotwiring somthing and get some cyniade poisoning. -- Ross DClarke351@aol.com wrote: > > When I built my wings I built a long hot wire, (about 6') and my wings came > out nice and smooth. If you have any questions E-mail me or call > 915-755-0588. Don Clarke > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: Tailpost From: Ross Youngblood Date: Mon, 05 Jul 1999 22:17:59 -0700 X-Message-Number: 12 > I had purchased an electric hand plane to taper the spars, and it works > to taper the tail post as well. (Black & Decker). >> > > Ross: > > I have an electric plane and would like to use it to taper the spars. I was > wondering how did you do it. Was it free hand or you built some sort of jig. > > haris Black & Decker sells an attachment that will allow you to set a specific angle. It's kinda useful, but if I recall, I marked the spar, and took a little material off at a time manually. (It's easy to take too much). -- Ross ---------------------------------------------------------------------- Subject: Re: Arlington Airshow From: Ross Youngblood Date: Mon, 05 Jul 1999 22:16:14 -0700 X-Message-Number: 13 Monty, I don't know if I can afford the $$$ to fly up, but may try if I can find the cash. Just got checked out in a C-172 (again) at the local FBO. (New FBO). Monty Dotson wrote: > > I'm planning on flying up to the show on Sat. the 10th , I would like to > meet any KR enthusiasts. Does anyone have any plans for gathering > together at the show ? The last time I attended the event ,they didn't > seem to really have much regard placing types of aircraft catagoricaly. > I suppose it's a first come , first tie down spot situation. Thank you > for any response. Monty D. > > --- > You are currently subscribed to kr-net as: rossy@teleport.com > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: 1999 KR Gathering From: KR2616TJ@aol.com Date: Sun, 11 Jul 1999 17:45:50 EDT X-Message-Number: 14 In a message dated 7/11/99 4:30:54 PM Eastern Daylight Time, NFCKR3@aol.com writes: << Are there any facilities at the airport? I understand that there are no facilities there, no gas, no FBO and no hangar to keep the planes in. I guess that we will need to bring tiedowns also? >> There is gas (100LL, no Jet A:-) and a facilities building with outside electrical plugins. There are hard surface tiedown rings by the gas pump. If you want to park on the grass beside the runway, you will need to provide your own tiedowns. If I were you, I'd bring tiedowns. The facilities building has bathrooms and I believe a gift kinda shop. Don't hold me to the gift thing, it may be out of season. There is no hangar. I am working on getting a "circus" (since we resemble a circus sometimes) tent, we'll see how that goes. Remember, this place is five hours, by car, from my house so it's not a weekend hangout of mine. I was planning on getting over there in the 172 but................................. Dana Overall 1999 KR Gathering host mailto:kr2616tj@aol.com http://www.geocities.com/CapeCanaveral/Hangar/7085/ ---------------------------------------------------------------------- Subject: Re: Arlington "99 From: "cmidkiff" Date: Sun, 11 Jul 1999 15:12:17 -0700 X-Message-Number: 15 I missed most of you also. I was there most of the day Friday but couldn't get there Saturday until around 1pm. I had the pleasure of meeting and talking with Robert on Friday, who flew Adrian Carter's Kr-2 in from Canada. I also had the pleasure of meeting and speaking with Ed Nelson who decided on the spur of the moment to fly over from Idaho. His KR-2 is beautiful and it's hard to believe it is 19 years old. There was another KR-2 owner/builder, whose name escapes me right now, admiring Nelsons KR-2 who was from Utah. I have all the controls installed in my KR-2 boat, and wanted to ask those who were already flying, their opinion, if they thought before I went any further the advisability of switching from center stick to dual stick and toe brakes to heel brakes. I'm open for suggestions in those areas. It was good talking with you Monet ! Bud Lynnwood, WA. cmidkiff@gte.net ----- Original Message ----- From: Mel Poradun To: KR-net users group Sent: Saturday, July 10, 1999 10:00 PM Subject: [kr-net] Re: Arlington "99 > Well Marvin Mccoy and I were There at 10:00 Sat. and had a great visit. > sorry we missed you. We will try again next year. I saw 2 KR2's at the > fly-in one from Idaho and another from Lynwood , WA. The last one was > trailored in and for sale. > Hope to see more people they next Year because it is a large airshow with > many airplanes(Homebuilts and commercial built. > > Mel Poradun > mporadun@wa.freei.net > > > > > ----- Original Message ----- > From: Monet Laigo > To: KR-net users group > Sent: Saturday, July 10, 1999 4:51 PM > Subject: [kr-net] Arlington "99 > > > > July 10, 1999 > > > > Hello fellow netters, I have gone to the EAA Arlington Fly-in today and > > yesterday. I wanted to meet my fellow netters that were there this 10AM > > at the snack place at the end of the EAA chapter building. Unfortunately, > > I did not arrive there till almost noon. Needless to say that I had missed > > my group of potential new friends. There were 2 KR2's there yesterday, > > today there was only 1, and it was for sale (trailer included) for > > $8.200.00. There were a set of plans in the "fly market" for a KR-2S for > > a hundred plus bucks too. How does that work out? Would RR allow you to > > build on plans that didn't come from them? > > Also, yesterday, I had met a fellow named BUD (I'm sorry, I forgot your > > surname) who was also in the process of building his wings. The scanned > > photo showed his bird upright, boat finished,and extended some. Also in > his > > photo were two of his cute assistants. He sez that he already has 500hrs > > invested (his spars were on too). > > I was really looking forward to meeting my KR "relatives", so maybe next > > time. > > Fairwinds, > > Monet > > > > --- > > You are currently subscribed to kr-net as: mporadun@wa.freei.net > > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > > > > > > --- > You are currently subscribed to kr-net as: cmidkiff@gte.net > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > ---------------------------------------------------------------------- Subject: Re: Carry Insurance From: EveninBrz@aol.com Date: Sun, 11 Jul 1999 18:09:15 EDT X-Message-Number: 16 In a message dated 7/11/99 8:40:13 AM Pacific Daylight Time, KR2616TJ@aol.com writes: << http://www.geocities.com/CapeCanaveral/Hangar/7085/kr00007.htm >> Dana, I'm just so happy that you weren't in the hanger, but also very sorry for your loss. Larry Shull ---------------------------------------------------------------------- Subject: Re: 1999 KR Gathering From: ejanssen@chipsnet.com (Ed Janssen) Date: Sun, 11 Jul 1999 17:37:57 -0500 X-Message-Number: 17 I suppose it's been mentioned, but musta missed it - where is the airport at Lake Barkley? The tourist website for Lake Barkley doesn't even mention an airport or even show it on a map of the area. Someone know the coordinates so's we can punch it in the ol' GPS? Ed Janssen -----Original Message----- From: NFCKR3@aol.com To: KR-net users group Date: Sunday, July 11, 1999 3:38 PM Subject: [kr-net] Re: 1999 KR Gathering >Are there any facilities at the airport? I understand that there are no >facilities there, no gas, no FBO and no hangar to keep the planes in. I guess >that we will need to bring tiedowns also? > >Skip Carden >250KB ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: Bud Martin Date: Sun, 11 Jul 1999 17:37:23 -0600 X-Message-Number: 18 Indeed, ohm meter readings have nothing to do with impedance. Recommend you find an old amateur radio operator in the neighborhood with a Bird meter, or some of the hotshot NASA people--usually glad to help--or go direct to Jim Weir about insuring how to guarantee your antenna installation. Mark Langford wrote: > AntennaHeads, > > I just built a "Weir Special" base station antenna from plans that were > detailed in the July 88 Kitplanes article "Make Your Own Base Station > Antenna". I figured I'd put my new Terra TX-750D to work for a little while > to make sure I won't need to use the warranty before my plane ever flies. > And besides, I wouldn't mind the motivation of listening to all these folks > in the pattern at Moontown airport. Anyway, this antenna is basically 1/2" > copper tubing in the shape of a "J" about 70" tall, with the braided part of > the coax fastened to the bottom of the tall element(radiator), and the > center conductor fastened to the bottom of the short element (reflector). > That's a direct short, in my book, and not surprisingly my ohmeter reads .9 > Ohms at the other end of the coax (50' away in my basement). Should I be > worried about frying my new radio with this setup? The reason I ask is > because my AmeriKing ELT has a little whip antenna that shows about 500 Ohms > between it's terminals. I haven't powered it up yet, but I'd love to hear > any comments that you "sparky" boys have to make. What kind of resistance > should I be seeing? I know impedence is different from resistance, but I'm > still concerned enough to ask before I leap. > > I'll detail this antenna construction later, but right now my digital > camera's on vacation in Alaska for the week... > > Thanks in advance, > > Mark Langford, Huntsville, Alabama > mailto:langford@hiwaay.net > see KR2S project N56ML at http://home.hiwaay.net/~langford > > --- > You are currently subscribed to kr-net as: budm303@earthlink.net > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com ---------------------------------------------------------------------- Subject: Re: Carry Insurance From: tom Date: Sun, 11 Jul 1999 19:57:08 -0400 X-Message-Number: 19 KR2616TJ@aol.com wrote: > > Try this address, I let the period out between www & geocities. > > http://www.geocities.com/CapeCanaveral/Hangar/7085/kr00007.htm > > Dana > > Now you just need to talk the insurance co. into letting you keep what's left. There must be a lot of undamaged parts. Tom Crawford toys@atlantic.net Gainesville, FL N262TC ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: "Noel Abel" Date: Mon, 12 Jul 1999 10:00:33 +1000 X-Message-Number: 20 Mark, Even though you are not transmitting you will still get better reception if your match is correct. The standing wave ratio has to be as close as possible for both transmitting and receiving but in practice you may not notice much difference unless distance is the issue. Regards, Noel VK3YUO -----Original Message----- From: Mark Langford To: KR-net users group Date: Sunday, July 11, 1999 10:35 PM Subject: [kr-net] Re: antenna electrical question >Adrian Carter wrote: > >> Using an ohm >> meter really does not tell you anything just that it does not have a >> short, and it should not have. The proper instrument for matching the >> transmitter to an antenna it a SWR meter > >That's what I suspected, but wanted to hear it from somebody that knew more >than me. A ham friend has an SWR meter that I'd been planning to borrow >next week. The J is tuneable via a stainless steel tuning screw threaded >into the top of the shorter reflector pole. I'll probably never transmit on >the thing anyway, just listen. This huge J-pole has a striking resemblence >to a lightening rod, so I won't leave it plugged into the radio when I'm not >listening to it either... > >Thanks, > >Mark Langford, Huntsville, Alabama >mailto:langford@hiwaay.net >see KR2S project N56ML at http://home.hiwaay.net/~langford > > >----- Original Message ----- >From: cartera >To: KR-net users group >Sent: Sunday, July 11, 1999 12:38 AM >Subject: [kr-net] Re: antenna electrical question > > >> Mark Langford wrote: >> > >> > AntennaHeads, >> > >> > I just built a "Weir Special" base station antenna from plans that were >> > detailed in the July 88 Kitplanes article "Make Your Own Base Station >> > Antenna". I figured I'd put my new Terra TX-750D to work for a little >while >> > to make sure I won't need to use the warranty before my plane ever >flies. >> > And besides, I wouldn't mind the motivation of listening to all these >folks >> > in the pattern at Moontown airport. Anyway, this antenna is basically >1/2" >> > copper tubing in the shape of a "J" about 70" tall, with the braided >part of >> > the coax fastened to the bottom of the tall element(radiator), and the >> > center conductor fastened to the bottom of the short element >(reflector). >> > That's a direct short, in my book, and not surprisingly my ohmeter reads >.9 >> > Ohms at the other end of the coax (50' away in my basement). Should I >be >> > worried about frying my new radio with this setup? The reason I ask is >> > because my AmeriKing ELT has a little whip antenna that shows about 500 >Ohms >> > between it's terminals. I haven't powered it up yet, but I'd love to >hear >> > any comments that you "sparky" boys have to make. What kind of >resistance >> > should I be seeing? I know impedence is different from resistance, but >I'm >> > still concerned enough to ask before I leap. >> > >> > I'll detail this antenna construction later, but right now my digital >> > camera's on vacation in Alaska for the week... >> > >> > Thanks in advance, >> > >> > Mark Langford, Huntsville, Alabama >> > mailto:langford@hiwaay.net >> > see KR2S project N56ML at http://home.hiwaay.net/~langford >> > >> > --- >> > You are currently subscribed to kr-net as: cartera@cuug.ab.ca >> > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com >> >> Hi Mark, >> This is what we hams call a "J Pole" it is a fairly good antenna but not >> sure what the gain is, usually for a receiver it can be any type of wire >> stuck out there but for transmitting it should be matched. Using an ohm >> meter really does not tell you anything just that it does not have a >> short, and it should not have. The proper instrument for matching the >> transmitter to an antenna it a SWR meter (standing wave ratio, cheap at >> Radio Shack) how much RF is going out and how much RF coming back this >> give you a ratio the more power coming back the more mismatch you have >> in the antenna and can default the final amplifier in the transmitter. >> Clear as mud, hey Mark! >> -- >> Adrian VE6AFY >> Mailto:cartera@cuug.ab.ca >> http://www.cuug.ab.ca/~cartera >> >> >> --- >> You are currently subscribed to kr-net as: langford@hiwaay.net >> To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com >> >> > > >--- >You are currently subscribed to kr-net as: nabel@dynamite.com.au >To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: "w.g. kirkland" Date: Sun, 11 Jul 1999 20:04:58 -0400 X-Message-Number: 21 W.G. KIRKLAND kirkland@vianet.on.ca ---------- > From: Mark Langford > To: KR-net users group > Subject: [kr-net] antenna electrical question > Date: Saturday, July 10, 1999 5:03 PM > > AntennaHeads, > > I just built a "Weir Special" base station antenna from plans that were > detailed in the July 88 Kitplanes article "Make Your Own Base Station > Antenna". I figured I'd put my new Terra TX-750D to work for a little while > to make sure I won't need to use the warranty before my plane ever flies. > And besides, I wouldn't mind the motivation of listening to all these folks > in the pattern at Moontown airport. Anyway, this antenna is basically 1/2" > copper tubing in the shape of a "J" about 70" tall, with the braided part of > the coax fastened to the bottom of the tall element(radiator), and the > center conductor fastened to the bottom of the short element (reflector). > That's a direct short, in my book, and not surprisingly my ohmeter reads .9 > Ohms at the other end of the coax (50' away in my basement). Should I be > worried about frying my new radio with this setup? The reason I ask is > because my AmeriKing ELT has a little whip antenna that shows about 500 Ohms > between it's terminals. I haven't powered it up yet, but I'd love to hear > any comments that you "sparky" boys have to make. What kind of resistance > should I be seeing? I know impedence is different from resistance, but I'm > still concerned enough to ask before I leap. > > I'll detail this antenna construction later, but right now my digital > camera's on vacation in Alaska for the week... > > Thanks in advance, > > Mark Langford, Huntsville, Alabama > mailto:langford@hiwaay.net > see KR2S project N56ML at http://home.hiwaay.net/~langford > > > --- > You are currently subscribed to kr-net as: kirkland@vianet.on.ca > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: "w.g. kirkland" Date: Sun, 11 Jul 1999 20:24:44 -0400 X-Message-Number: 22 Mark: It's me again. I found the design for your antenna written by Art Blick VE3AHU. It's called the slim Jim. His design was for 147 mhz band. Adjusted for 123 mhz 70" is exactly right. The leads are connected 4 3/4" inches from the bottom with the centre wire of the coax going to the 70" section and the shield going to the shorter 23.1" section. Connected this way you ohm metre would show a direct short but that is the way it should be. To get the absolute minimum standing wave ratio (swr) you need a swr meter in the antennae lead. Any amateur radio operator would likely be glad to help u adjust the antennae. Ask ur radio shack dealer for the name of a local ham. He will surelt know and be glad to help. (they have a bigger net than we do!!) Ps. A good antennae is the cheapest way to improve ur reception and output pwr. A 3db gain makes ur 4 watt radio act just like an 8 watt. A 6db gain makes it act like a 16 watt. There are amatuers who work the world with 3 watts but they have really good antennaes VE3JHU W.G. KIRKLAND kirkland@vianet.on.ca ---------- > From: Mark Langford > To: KR-net users group > Subject: [kr-net] antenna electrical question > Date: Saturday, July 10, 1999 5:03 PM > > AntennaHeads, > > I just built a "Weir Special" base station antenna from plans that were > detailed in the July 88 Kitplanes article "Make Your Own Base Station > Antenna". I figured I'd put my new Terra TX-750D to work for a little while > to make sure I won't need to use the warranty before my plane ever flies. > And besides, I wouldn't mind the motivation of listening to all these folks > in the pattern at Moontown airport. Anyway, this antenna is basically 1/2" > copper tubing in the shape of a "J" about 70" tall, with the braided part of > the coax fastened to the bottom of the tall element(radiator), and the > center conductor fastened to the bottom of the short element (reflector). > That's a direct short, in my book, and not surprisingly my ohmeter reads .9 > Ohms at the other end of the coax (50' away in my basement). Should I be > worried about frying my new radio with this setup? The reason I ask is > because my AmeriKing ELT has a little whip antenna that shows about 500 Ohms > between it's terminals. I haven't powered it up yet, but I'd love to hear > any comments that you "sparky" boys have to make. What kind of resistance > should I be seeing? I know impedence is different from resistance, but I'm > still concerned enough to ask before I leap. > > I'll detail this antenna construction later, but right now my digital > camera's on vacation in Alaska for the week... > > Thanks in advance, > > Mark Langford, Huntsville, Alabama > mailto:langford@hiwaay.net > see KR2S project N56ML at http://home.hiwaay.net/~langford > > > --- > You are currently subscribed to kr-net as: kirkland@vianet.on.ca > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > ---------------------------------------------------------------------- Subject: Re: 1999 KR Gathering From: Martin Date: Sun, 11 Jul 1999 17:53:28 -0700 X-Message-Number: 23 On Sun, 11 Jul 1999 17:37:57 -0500 ejanssen@chipsnet.com (Ed Janssen) wrote: --> I suppose it's been mentioned, but musta missed it - where is the airport at --> Lake Barkley? Hi Ed.. I've been lurking on here for a bit... And finally something I know about...LOL Follow this link for airport and facility information. http://www.airnav.com/cgi-bin/airport-info?1M9 Hope this helps.... Martin. ======================================= SMP Press RR2, Bjorn, C1, Sechelt, B.C. Canada. V0N-3A0 604-885-1873 Pacific... SMP Press Webpage:- http://www.bcity.com/smpp/ Spinout Magazine Webpage:- http://www4.bcity.com/spinout/ General and Submissions:- smpp@dccnet.com SpinOut Magazine:- spinout@dccnet.com Martin Menzies:- Publisher m_smpp@dccnet.com Sara Hufford:- Editor. s_smpp@dccnet.com ======================================= "Writing is easy. All you have to do is cross out the wrong words." Mark Twain. ======================================= ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: "Mark Langford" Date: Sun, 11 Jul 1999 20:34:55 -0500 X-Message-Number: 24 Thanks. I'm listening to it right now, and am picking up both Atlanta and Memphis centers... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ----- Original Message ----- From: w.g. kirkland To: KR-net users group Sent: Sunday, July 11, 1999 7:24 PM Subject: [kr-net] Re: antenna electrical question > Mark: It's me again. I found the design for your antenna written by Art > Blick VE3AHU. It's called the slim Jim. His design was for 147 mhz band. > Adjusted for 123 mhz 70" is exactly right. The leads are connected 4 3/4" > inches from the bottom with the centre wire of the coax going to the 70" > section and the shield going to the shorter 23.1" section. Connected this > way you ohm metre would show a direct short but that is the way it should > be. To get the absolute minimum standing wave ratio (swr) you need a swr > meter in the antennae lead. Any amateur radio operator would likely be glad > to help u adjust the antennae. Ask ur radio shack dealer for the name of a > local ham. He will surelt know and be glad to help. (they have a bigger net > than we do!!) Ps. A good antennae is the cheapest way to improve ur > reception and output pwr. A 3db gain makes ur 4 watt radio act just like an > 8 watt. A 6db gain makes it act like a 16 watt. There are amatuers who work > the world with 3 watts but they have really good antennaes VE3JHU > W.G. KIRKLAND > kirkland@vianet.on.ca > > ---------- > > From: Mark Langford > > To: KR-net users group > > Subject: [kr-net] antenna electrical question > > Date: Saturday, July 10, 1999 5:03 PM > > > > AntennaHeads, > > > > I just built a "Weir Special" base station antenna from plans that were > > detailed in the July 88 Kitplanes article "Make Your Own Base Station > > Antenna". I figured I'd put my new Terra TX-750D to work for a little > while > > to make sure I won't need to use the warranty before my plane ever flies. > > And besides, I wouldn't mind the motivation of listening to all these > folks > > in the pattern at Moontown airport. Anyway, this antenna is basically > 1/2" > > copper tubing in the shape of a "J" about 70" tall, with the braided part > of > > the coax fastened to the bottom of the tall element(radiator), and the > > center conductor fastened to the bottom of the short element (reflector). > > That's a direct short, in my book, and not surprisingly my ohmeter reads > .9 > > Ohms at the other end of the coax (50' away in my basement). Should I be > > worried about frying my new radio with this setup? The reason I ask is > > because my AmeriKing ELT has a little whip antenna that shows about 500 > Ohms > > between it's terminals. I haven't powered it up yet, but I'd love to > hear > > any comments that you "sparky" boys have to make. What kind of > resistance > > should I be seeing? I know impedence is different from resistance, but > I'm > > still concerned enough to ask before I leap. > > > > I'll detail this antenna construction later, but right now my digital > > camera's on vacation in Alaska for the week... > > > > Thanks in advance, > > > > Mark Langford, Huntsville, Alabama > > mailto:langford@hiwaay.net > > see KR2S project N56ML at http://home.hiwaay.net/~langford > > > > > > --- > > You are currently subscribed to kr-net as: kirkland@vianet.on.ca > > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > > > --- > You are currently subscribed to kr-net as: langford@hiwaay.net > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > ---------------------------------------------------------------------- Subject: my indiscretion From: "Mark Langford" Date: Sun, 11 Jul 1999 20:43:29 -0500 X-Message-Number: 25 Sorry but I didn't notice that last email was going to KRNet, or I'd have deleted all the trash at the bottom. I figured it was a private one and didn't notice where it was headed. But thanks to everybody who replied. I'm not a lot wiser on the subject of impedence matching... Mark Langford, Huntsville, Alabama mailto:langford@hiwaay.net see KR2S project N56ML at http://home.hiwaay.net/~langford ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: cartera Date: Sun, 11 Jul 1999 20:10:29 -0600 X-Message-Number: 26 Bud Martin wrote: > > Indeed, ohm meter readings have nothing to do with impedance. Recommend you find > an old amateur radio operator in the neighborhood with a Bird meter, or some of > the hotshot NASA people--usually glad to help--or go direct to Jim Weir about > insuring how to guarantee your antenna installation. > > Mark Langford wrote: > > > AntennaHeads, > > > > I just built a "Weir Special" base station antenna from plans that were > > detailed in the July 88 Kitplanes article "Make Your Own Base Station > > Antenna". I figured I'd put my new Terra TX-750D to work for a little while > > to make sure I won't need to use the warranty before my plane ever flies. > > And besides, I wouldn't mind the motivation of listening to all these folks > > in the pattern at Moontown airport. Anyway, this antenna is basically 1/2" > > copper tubing in the shape of a "J" about 70" tall, with the braided part of > > the coax fastened to the bottom of the tall element(radiator), and the > > center conductor fastened to the bottom of the short element (reflector). > > That's a direct short, in my book, and not surprisingly my ohmeter reads .9 > > Ohms at the other end of the coax (50' away in my basement). Should I be > > worried about frying my new radio with this setup? The reason I ask is > > because my AmeriKing ELT has a little whip antenna that shows about 500 Ohms > > between it's terminals. I haven't powered it up yet, but I'd love to hear > > any comments that you "sparky" boys have to make. What kind of resistance > > should I be seeing? I know impedence is different from resistance, but I'm > > still concerned enough to ask before I leap. > > > > I'll detail this antenna construction later, but right now my digital > > camera's on vacation in Alaska for the week... > > > > Thanks in advance, > > > > Mark Langford, Huntsville, Alabama > > mailto:langford@hiwaay.net > > see KR2S project N56ML at http://home.hiwaay.net/~langford > > > > --- > > You are currently subscribed to kr-net as: budm303@earthlink.net > > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com > > --- > You are currently subscribed to kr-net as: cartera@cuug.ab.ca > To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com Bud & Mark, Now there is a man who know what he is talking about! You bet a Bird is the ideal piece of precision test equipment mainly used with commercial vhf tech shops and they are worth their weight in gold, but sometimes hard to get a hold of. A simple SWR from Radio Shack is more than adequate and goes up to 150mhz. you just want an indication that the antenna is matched and is flat. If you check the transmission line to the antenna, your ohm meter should not even move which means no short of any kind RF, AC or DC most common short is the braid wire sometime are touching the center conductor. But, because this is a compromise antenna you will have a dead short between the center conductor and shield, these antenna are very common in the Arctic, you fly into any of the airstrips up there and what's sitting on top of the little frozen comm shack, but a "J Pole" they are nothing new also known as the "Plumbers Dream". TV coax should not be used because most have crimp connectors and foil shielding, us braided shielding with BNC connectors. The only way you can tune it is by applying power to it, but do not do it unless you have a SWR meter in line because it is an easy way of blowing you final on you transmitter, mind you some of these PA chips are a little more forgiving then tubes were. But, I still use the same precautions. Good Luck! -- Adrian VE6AFY Mailto:cartera@cuug.ab.ca http://www.cuug.ab.ca/~cartera ---------------------------------------------------------------------- Subject: Re: Tailpost From: Warron Gray Date: Sun, 11 Jul 1999 12:28:19 -0400 X-Message-Number: 27 Ross Youngblood wrote: > > I had purchased an electric hand plane to taper the spars, and it works > > to taper the tail post as well. (Black & Decker). >> > > > > Ross: > > > > I have an electric plane and would like to use it to taper the spars. I was > > wondering how did you do it. Was it free hand or you built some sort of jig. > > > > haris > I used a electric plane to do my spars, built a box to hold the spar at an angle then planed down to the box edge which was a guide. If i had had a GOOD table saw would use that if i was to cut spars again. Money was tight and had no way to borrow a good one. Warron ---------------------------------------------------------------------- Subject: Re: D-Fly Canopy - Colors From: Willard561@aol.com Date: Mon, 12 Jul 1999 00:32:45 EDT X-Message-Number: 28 In a message dated 7/11/99 12:11:11 PM Mountain Daylight Time, miket_nyc@juno.com writes: << I think one reason people think the Sonex is an ugly plane is because the canopies on the prototypes are dark BROWN -- hideous things. Since the tinted canopies must affect night vision to some extent, what's the reason for having them? Is it cooler in the cockpit with a tinted one? I always wear sunglasses when flying anyway. Mike Taglieri >> Mike: The F-16s based at Hill AFB (Utah) have a gold tint. I asked a pilot and he said Gold reflects infared so it keeps the inside cooler, and acts to absorb EMI generated inside the airplane. Bill Higdon Willard561@aol.com ---------------------------------------------------------------------- Subject: Re: Tailpost From: HAshraf@aol.com Date: Mon, 12 Jul 1999 00:39:07 EDT X-Message-Number: 29 In a message dated 99-07-11 17:20:12 EDT, you write: << Black & Decker sells an attachment that will allow you to set a specific angle. It's kinda useful, but if I recall, I marked the spar, and took a little material off at a time manually. (It's easy to take too much). -- Ross >> Thanks Ross. There is a Black and Decker outlet in a mall near Chino. I'll go there next week and get the attachment. Haris ---------------------------------------------------------------------- Subject: Re: antenna electrical question From: Willard561@aol.com Date: Mon, 12 Jul 1999 00:39:36 EDT X-Message-Number: 30 In a message dated 7/11/99 8:19:18 PM Mountain Daylight Time, cartera@cuug.ab.ca writes: << TV coax should not be used because most have crimp connectors and foil shielding, us braided shielding with BNC connectors. The only way you can tune it is by applying power to it, but do not do it unless you have a SWR meter in line because it is an easy way of blowing you final on you transmitter, mind you some of these PA chips are a little more forgiving then tubes were. But, I still use the same precautions. Good Luck! >> Also TV coax is usually RG59 which is a 75 ohm impedance and aircraft radios are about 50 so you want to use some thing like RG58 for your radio wiring. Bill Higdon Willard561@aol.com --- END OF DIGEST --- You are currently subscribed to kr-net as: johnbou@timberline.com To unsubscribe send a blank email to leave-kr-net-17800J@telelists.com