Date: Mon, 14 Mar 94 04:30:17 PST From: Ham-Ant Mailing List and Newsgroup Errors-To: Ham-Ant-Errors@UCSD.Edu Reply-To: Ham-Ant@UCSD.Edu Precedence: Bulk Subject: Ham-Ant Digest V94 #64 To: Ham-Ant Ham-Ant Digest Mon, 14 Mar 94 Volume 94 : Issue 64 Today's Topics: 1296 Antenna Best cars for mobile HF/VHF?? Best truck/sport util for HF/VHF? Diesel or Taurus fr HF/VHF mobile?? (2 msgs) Looking for dual band j-pole design portable yagi subscribe variable phase shifters, time delay elements Wanted Yaesu G-5400B Send Replies or notes for publication to: Send subscription requests to: Problems you can't solve otherwise to brian@ucsd.edu. Archives of past issues of the Ham-Ant Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/ham-ant". We trust that readers are intelligent enough to realize that all text herein consists of personal comments and does not represent the official policies or positions of any party. Your mileage may vary. So there. ---------------------------------------------------------------------- Date: Sun, 13 Mar 94 12:58:40 PST From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!nntp-server.caltech.edu!mustang.mst6.lanl.gov!newshost.lanl.gov!usenet@network.ucsd.edu Subject: 1296 Antenna To: ham-ant@ucsd.edu I just bought my first 1296 rig and naturally have no antenna. I am looking for input on what to get and/or wanting to buy one. I have hade recommended to the the loop Yagi from Down East Microwave. Opinions and offers will greatly appreciated. ------------------------------ Date: Sun, 13 Mar 94 16:42:44 GMT From: mnemosyne.cs.du.edu!nyx10!jmaynard@uunet.uu.net Subject: Best cars for mobile HF/VHF?? To: ham-ant@ucsd.edu In article <1994Mar11.135613.16379@ke4zv.atl.ga.us>, Gary Coffman wrote: >Look at what the cops are driving. Ford Crown Victorias seem popular >with them, as do Chevy Caprices. There's a brand new '94 Crown Vic with police package sitting in my driveway as I type this, courtesy of the EMS I run with. All I can say is...WOW!!! (Unfortunately, I have to pass it along at the end of my shift...) > Order your's with the same fleet codes >that they use and you'll have a car that works well with radios. I thought mere mortals couldn't buy cars with those fleet codes. -- Jay Maynard, EMT-P, K5ZC, PP-ASEL | Never ascribe to malice that which can jmaynard@oac.hsc.uth.tmc.edu | adequately be explained by stupidity. "The difference between baseball and politics is that, in baseball, if you get caught stealing, you're out!" -- Ed Shanks ------------------------------ Date: 13 Mar 1994 20:10:38 -0500 From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!wupost!udel!news.udel.edu!brahms.udel.edu!not-for-mail@network.ucsd.edu Subject: Best truck/sport util for HF/VHF? To: ham-ant@ucsd.edu Thanks for your input on cars etc. so far. I have narrowed my thinking to a small pickup or sport utility such as Bronco, Trooper, etc., probably 86 to 91. I am told that American cars have less solid state devices to go awry due to RF from HF or VHF rigs, that Ford seems to be a good choice, that Japanese vehicles may be more susceptible to RF. Again, besides physical comfort (my back) criteria include lack of problems from car to rig and vice versa, and other normal concerns. All input welcomed. Thanks again. Bob -- Bob Penneys, WN3K Frankford Radio Club Internet: penneys@pecan.cns.udel.edu Work: Ham Radio Outlet (Delaware) (800) 644-4476; fax (302) 322-8808 Mail at home: 12 East Mill Station Drive Newark, DE 19711 USA ------------------------------ Date: Sun, 13 Mar 1994 13:43:56 GMT From: ihnp4.ucsd.edu!swrinde!emory!wa4mei!ke4zv!gary@network.ucsd.edu Subject: Diesel or Taurus fr HF/VHF mobile?? To: ham-ant@ucsd.edu In article <2lr2dj$20m@brahms.udel.edu> penneys@brahms.udel.edu (Robert Penneys) writes: > I got a variety of responses for a car which would be good for 100 watts >or so of HF and 50 or so of 2 meter and 440 radio. Criteria were lack of >interference from car into receiver and from transmitter into auto >electronics. > >Diesels and the Taurus were among those favored. Anyone else have comments >on these choices. People often say to buy a diesel because it won't generate any RFI. I wish they could have owned my diesel Nissan pickup. It had the most horrendous RFI I've ever experienced in a vehicle. There was a severe popping noise, similar to really severe ignition noise, any time the engine was running. I could disconnect the alternator belt and the battery (after starting the engine), and the noise was still there with no vehicle electrical equipment operating at all. It got into everything from the entertainment radio to HF, VHF, and UHF ham gear. I tried every trick I know, (and I thought I knew them all), without any success. The dealer couldn't fix it. The zone office couldn't fix it. I even talked to factory engineers in Japan. Everyone was stumped. I finally sold the vehicle back to them and bought a Jeep pickup. Aside from some alternator whine, which I fixed with a choke, it's generated no RFI from it's 6 cylinder gasoline engine. Gary -- Gary Coffman KE4ZV | You make it, | gatech!wa4mei!ke4zv!gary Destructive Testing Systems | we break it. | uunet!rsiatl!ke4zv!gary 534 Shannon Way | Guaranteed! | emory!kd4nc!ke4zv!gary Lawrenceville, GA 30244 | | ------------------------------ Date: Sun, 13 Mar 1994 16:42:59 GMT From: world!dts@uunet.uu.net Subject: Diesel or Taurus fr HF/VHF mobile?? To: ham-ant@ucsd.edu In article <1994Mar13.134356.26825@ke4zv.atl.ga.us> gary@ke4zv.atl.ga.us (Gary Coffman) writes: >In article <2lr2dj$20m@brahms.udel.edu> penneys@brahms.udel.edu (Robert Penneys) writes: >> I got a variety of responses for a car which would be good for 100 watts >>or so of HF and 50 or so of 2 meter and 440 radio. Criteria were lack of >>interference from car into receiver and from transmitter into auto >>electronics. >> >>Diesels and the Taurus were among those favored. Anyone else have comments >>on these choices. > >People often say to buy a diesel because it won't generate any RFI. I wish >they could have owned my diesel Nissan pickup. It had the most horrendous >RFI I've ever experienced in a vehicle. There was a severe popping noise, >similar to really severe ignition noise, any time the engine was running. >I could disconnect the alternator belt and the battery (after starting the >engine), and the noise was still there with no vehicle electrical equipment >operating at all. It got into everything from the entertainment radio to >HF, VHF, and UHF ham gear. Ignition noise is often NOT the problem. It is very possible that the engine used fuel injection (solenoids, square wave pulses), an electronic fuel pump (my Pathfinder has a noise problem from the fuel pump), and a computer system. So getting a diesel is not likely to be a big help. Now in the old days of mechanical fuel pumps, carbs, etc. it might have been fine... > >I tried every trick I know, (and I thought I knew them all), without >any success. The dealer couldn't fix it. The zone office couldn't fix >it. I even talked to factory engineers in Japan. Everyone was stumped. >I finally sold the vehicle back to them and bought a Jeep pickup. Aside >from some alternator whine, which I fixed with a choke, it's generated >no RFI from it's 6 cylinder gasoline engine. > >Gary >-- >Gary Coffman KE4ZV | You make it, | gatech!wa4mei!ke4zv!gary >Destructive Testing Systems | we break it. | uunet!rsiatl!ke4zv!gary >534 Shannon Way | Guaranteed! | emory!kd4nc!ke4zv!gary >Lawrenceville, GA 30244 | | -- --------------------------------------------------------------- Daniel Senie Internet: dts@world.std.com Daniel Senie Consulting n1jeb@world.std.com 508-365-5352 Compuserve: 74176,1347 ------------------------------ Date: 14 Mar 1994 05:40:26 GMT From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!vixen.cso.uiuc.edu!newsrelay.iastate.edu!news.iastate.edu!bwehr@network.ucsd.edu Subject: Looking for dual band j-pole design To: ham-ant@ucsd.edu Im looking for any references to a dual band antenna in any of the ham mags. If anyone has any references on the thing drop me some mail with the month and the mag and I will be in youre debt. -Brant ______________________________________________________________________________ Brant Wehr N0UTT internet bwehr@iastate.edu Activities Director CARC Electrical Engineering ______________________________________________________________________________ -- Brant bwehr@iastate.edu ------------------------------ Date: Mon, 14 Mar 1994 00:15:59 GMT From: ihnp4.ucsd.edu!usc!sol.ctr.columbia.edu!newsxfer.itd.umich.edu!nntp.cs.ubc.ca!suncad!freenet.Victoria.BC.CA!ud837@network.ucsd.edu Subject: portable yagi To: ham-ant@ucsd.edu I am a relatively new ham, and I wish to construct a portable yagi (if such a thing exists) for 146.84 mHz - I want to be able to collapse it and carry it in a pack. I haven't built an antenna before, and so I've read through an ARRL handbook to learn a bit more on the subject... I find the knowledge I obtained to get my basic qualification to be unsatisfactory and that there is a lot I need to know. If anyone has plans for a portable yagi (or if they know the feasibility of such a project) please let me know. I read through a table of values for lengths of the various elements (ref,driven,dir) and I found 2 meter Yagi's to be quite large (ie. 3 dir. yagi has a boom length of about 5.5' and elements of around 3.5'). I suppose what I want is the fewest number of elements possible (to cut down size) and I need a good way to have the boom/elements broken into two pieces with a good way to re-attach them to get the overall length of all the pieces about the size of tent poles. Anyways, you get the idea. Please let me know if you can help... -ed ------------------------------ Date: 14 Mar 94 19:23:00 GMT From: news-mail-gateway@ucsd.edu Subject: subscribe To: ham-ant@ucsd.edu subscribe ------------------------------ Date: Mon, 14 Mar 1994 09:45:59 GMT From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!pipex!lyra.csx.cam.ac.uk!pavo.csi.cam.ac.uk!pmms.cam.ac.uk!andrew@network.ucsd.edu Subject: variable phase shifters, time delay elements To: ham-ant@ucsd.edu In article <1994Mar11.185026.18462@ke4zv.atl.ga.us>, gary@ke4zv.atl.ga.us (Gary Coffman) writes: |> mechanical nightmare to support properly. At lower frequencies, |> a goniometer would probably be easier to make. |> |> Gary |> -- Pardon my ignorance, but what's a goniometer? And does `lower frequencies' here include, say, 100MHz? Andrew Thomason ------------------------------ Date: Sun, 13 Mar 94 13:01:03 PST From: ihnp4.ucsd.edu!swrinde!elroy.jpl.nasa.gov!nntp-server.caltech.edu!mustang.mst6.lanl.gov!newshost.lanl.gov!usenet@network.ucsd.edu Subject: Wanted Yaesu G-5400B To: ham-ant@ucsd.edu As the subject implies I am in the market for a Yaesu G-5400B azimuth/elevation rotor for my fledgeling satellite station. Before buying a new one I thought I ask if anyone has one to sell. Drop e-mail to ggs@lanl.gov or phone (505)672-3717 home (505)667-3923 office ------------------------------ End of Ham-Ant Digest V94 #64 ******************************