Date: Thu, 29 Sep 94 15:50:54 PDT From: Info-Hams Mailing List and Newsgroup Errors-To: Info-Hams-Errors@UCSD.Edu Reply-To: Info-Hams@UCSD.Edu Precedence: Bulk Subject: Info-Hams Digest V94 #1073 To: Info-Hams Info-Hams Digest Thu, 29 Sep 94 Volume 94 : Issue 1073 Today's Topics: [LOOKING] for ftp site w/ham-exams Best HT anywhere at any price! Callbook online? Colorado Repeater Assn. FCC forms wireless division For Sale: PK-232-MBX TNC IPS Daily Report - 27 September 94 Need help with FT-530: half-duplex crossband operation Shops in NYC and Boston? Subsciption Tucker Electronics UK repeaters frequencies needed ... Vertically Polarized Noise VTVMs? Anybody use these anymore? Why does Radio Shac care if I export HT202? ## 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 Info-Hams Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams". 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: 29 Sep 1994 02:15:47 GMT From: intac!usenet@uunet.uu.net Subject: [LOOKING] for ftp site w/ham-exams To: info-hams@ucsd.edu In article , tjohnson@austlcm.sps.mot.com ('terence johnson/zpe4') says: > > >Does anyone know of a good ftp site which has recent example-tests or >a program that generates them from a question pool. My nieghbor wants >a PC program which can generate random tests. > You might try to ftp: nic.funet.fi /pub/ham/exams view the index for latest versions of Novice, Tech, General, Advanced and Extra class license exam question pools. Software will drill questions and generate complete exams for practice. - 73 and good luck - Thom / N2CBV ------------------------------ Date: 30 Sep 94 00:19:00 GMT From: news-mail-gateway@ucsd.edu Subject: Best HT anywhere at any price! To: info-hams@ucsd.edu As far as I am concerned, when I am looking for HTs I am looking for: - Price - Quality - Features The best match is the AT-18, sold by Electro Automatic Corp, of Lawrence MA 01840, 508/687-6411, fax:508/687-6493. Its looks like a Standard (same commands as well, no bells and whistles - probably built by the same factrory) sold by another name (in Europe its called ADI-18). Quality and performance is there except that the price is $159, not $459. They even have a AT-48 for the 70cm band for $179. No I have nothing to do with this company, but I always support products at realistic prices. Beats any kit or any HT at any price. Peter Vekinis, KC1QF pve@dg13.cec.be ------------------------------ Date: 29 Sep 1994 00:14:34 GMT From: spool.mu.edu!news.nd.edu!mac35@uunet.uu.net Subject: Callbook online? To: info-hams@ucsd.edu In article , tja@netcom.com (T.J. Alessi) wrote: > > I presently use the callbook server at "callbook.cs.buffalo.edu" and it > is OK, but does anyone know of others (more up to date that I can telnet > into? > The Buffalo callsign server is updated periodically. It has simply been a while since an update (January). Since then, there has been new info available on CD ROM, so it is probably just a matter of time until the callsign server is brought up to date. I myself have several QSLs which I am holding until there is an update. Does anyone know when an update is likely to occur? Perhaps after the release of the October update from Buckmaster? ------------------------------ Date: 27 Sep 1994 17:54:36 GMT From: yuma!galen@purdue.edu Subject: Colorado Repeater Assn. To: info-hams@ucsd.edu In article jwdxt@csn.org (Jim Deeming) writes: >Does anyone have a phone number I could call to get my CRA membership >underway? I have the mailing address from the Repeater Directory, but it >does not contain any membership information and I'd like to talk to a real >person so I can send everything I need the first time. I joined at the swapfest on Sunday. I can't find a Ph #, but they say to get on the 147.225+ repeater if you have questions. A family membership is $20/yr, a student memebership is $10/yr. They asked if I was interested in joining the tech committee or the work crew when I joined. Colorado Repeater Association PO Box 621 Parker, CO 80134 Galen, KF0YJ ------------------------------ Date: 28 Sep 1994 17:58:48 -0600 From: mnemosyne.cs.du.edu!nyx.cs.du.edu!not-for-mail@uunet.uu.net Subject: FCC forms wireless division To: info-hams@ucsd.edu In article <1CA69AD1765@thor.cca.rockwell.com>, William E. Newkirk wrote: >(i dunno, i find it funny that people use the term "Wireless" and >think it's something new and different than "Radio") > >"If It's *Wireless*, It's *Radio*" > uhhh, not to seem inflamatory or anything but, wireless = without wires, and radio = is using a certain portions of the EM spectrum. Hence people do not normally consider Infra-red communacation or any such, 'radio'. -- jsteinhu@nyx.cs.du.edu ------------------------------ Date: 28 Sep 1994 06:52:47 GMT From: ihnp4.ucsd.edu!usc!nic-nac.CSU.net!charnel.ecst.csuchico.edu!olivea!gossip.pyramid.com!news.c2.org!randyk@network.ucsd.edu Subject: For Sale: PK-232-MBX TNC To: info-hams@ucsd.edu I have a Pk-232-MBX in 'very' good condition. It has 01 AUG. 91 firmware chips installed { 18k plus in the MBX } and comes with the $75. We-Fax cable and manual. I also have the original carton for this critter as well. I am thinking that $200. would be ok for this unit { shipping via U.P.S. etc. won't be that much extra from Berkeley }. Just drop me a reply here if you have any questions that I can help you with re: the unit. Sincerly; Randy Kielich N6WDV randyk@c2.org ------------------------------ Date: Tue, 27 Sep 1994 23:36:22 GMT From: ihnp4.ucsd.edu!swrinde!sgiblab!munnari.oz.au!yarrina.connect.com.au!news.uwa.edu.au!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!ipso!rwc@network.ucsd.edu Subject: IPS Daily Report - 27 September 94 To: info-hams@ucsd.edu SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT ISSUED AT 27/2330Z SEPTEMBER 1994 BY IPS RADIO AND SPACE SERVICES FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY. SUMMARY FOR 27 SEPTEMBER AND FORECAST FOR 28 SEPTEMBER - 30 SEPTEMBER ----------------------------------------------------------- 1A. SOLAR SUMMARY Activity: very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number : 75/13 GOES satellite data for 26 Sep Daily Proton Fluence >1 MeV: 1.0E+06 Daily Proton Fluence >10 MeV: 1.4E+04 Daily Electron Fluence >2 MeV: 3.1E+07 (normal) X-ray background: A3.4 Fluence (flux accumulation over 24hrs)/ cm2-ster-day. 1B. SOLAR FORECAST 28 Sep 29 Sep 30 Sep Activity Very low Very low Very low Fadeouts None expected None expected None expected Forecast 10.7 cm flux/Equivalent Sunspot Number for 28 Sep: 75/13 ----------------------------------------------------------- 2A. MAGNETIC SUMMARY Geomagnetic field at Learmonth: quiet to unsettled Estimated Indices : A K Observed A Index 26 Sep Learmonth 9 2223 2322 Fredericksburg 13 16 Planetary 18 20 Observed Kp for 26 Sep: 3445 3222 2B. MAGNETIC FORECAST DATE Ap CONDITIONS 28 Sep 15 Quiet to unsettled 29 Sep 12 Quiet to unsettled 30 Sep 10 Quiet to unsettled ----------------------------------------------------------- 3A. GLOBAL HF PROPAGATION SUMMARY LATITUDE BAND DATE LOW MIDDLE HIGH 27 Sep normal fair-normal fair-normal PCA Event : None. 3B. GLOBAL HF PROPAGATION FORECAST LATITUDE BAND DATE LOW MIDDLE HIGH 28 Sep normal normal fair-normal 29 Sep normal normal normal 30 Sep normal normal normal ----------------------------------------------------------- 4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY Observed DATE T-index MUFs at Sydney 27 Sep 12 near predicted monthly values Predicted Monthly T-index for September: 20 4B. AUSTRALIAN REGION IONOSPHERIC FORECAST DATE T-index MUFs 28 Sep 15 Near predicted monthly values 29 Sep 20 Near predicted monthly values 30 Sep 20 Near predicted monthly values COMMENT: The MUFs were slightly depressed in the early UT day. -- IPS Regional Warning Centre, Sydney |IPS Radio and Space Services RWC Duty Forecaster tel: +61 2 4148329 |PO Box 5606 Recorded Message tel: +61 2 4148330 |West Chatswood NSW 2057 email: rwc@ips.oz.au fax: +61 2 4148331 |AUSTRALIA ------------------------------ Date: 27 Sep 1994 18:27:54 GMT From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!swiss.ans.net!solaris.cc.vt.edu!news.duke.edu!duke.edu!jbs@network.ucsd.edu Subject: Need help with FT-530: half-duplex crossband operation To: info-hams@ucsd.edu This weekend we were experimenting with crossband repeating and ran into some difficulty with feedback when trying to use the HT transmitting on one band and receiving on the other. With my DJ-580 you set FL (freq lock) and then toggle full-duplex on/off for the active band by pushing the "Power" button. Works great - with FD off no feedback when you transmit. My friend has an FT-530 and nothing in the manual gives any clue about turning off full-duplex operation. Anybody out there know how to switch it off on a 530? Thanks in advance... -joe -- "When personal freedom's being abused, | "I have an open mind, about everything you have to move to limit it." | it needs to be open about." | - U.S. President Bill Clinton, 1994 | - George Greene 9/13/94 ------------------------------ Date: 28 Sep 1994 15:38:57 +0200 From: ihnp4.ucsd.edu!ucsnews!sol.ctr.columbia.edu!howland.reston.ans.net!EU.net!sunic!news.funet.fi!sauna.cs.hut.fi!elvis.clinet.fi!clinet.fi!jukka@network.ucsd.edu Subject: Shops in NYC and Boston? To: info-hams@ucsd.edu I'm going to visit NYC and Boston at mid-October. I have been in NYC before, but found only "Barry's Electronics" at 512 Broadway. Is it the only one there? If so, i don't need to visit there this time... I haven't been in Boston before this, so it would be nice to know, if there's toys for boys available there. Or is there some kind of "Electronics Street", as in some big cities? 73! -- Jukka Salomaa jukka@clinet.fi OH2BUA phone +358 400 315 444 puhelin 9400 315 444 ------------------------------ Date: 29 Sep 94 19:20:15 GMT From: news-mail-gateway@ucsd.edu Subject: Subsciption To: info-hams@ucsd.edu Suscribe. ------------------------------ Date: Wed, 28 Sep 1994 02:31:38 GMT From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!news.sprintlink.net!redstone.interpath.net!ddsw1!news.kei.com!yeshua.marcam.com!charnel.ecst.csuchico.edu!csusac!csus.edu!netcom.com!edlawson@network Subject: Tucker Electronics To: info-hams@ucsd.edu The bottom line is Tucker is a very reputable dealer who has been around for years and knows (remembers) what customer service is. Their prices will never be the lowest, but this is not a garage operation and they will be around. If you want som'tin for nut'in as the CW posting went, don't bother with Tucker. I will admit that their used commercial equipment pricing is out of touch with reality..(goes back to when there was a military budget and when an ambitious sub would pay the price.......they're a little sleepy on this part) ......jes depends on how bad you want it...... edlawson@netcom.com KD5EZ, Austin ******************************************************************************* Please help Bill out.......vote Republican in November. ******************************************************************************* -- edlawson@netcom.com KD5EZ, Austin ******************************************************************************* Please help Bill out.......vote Republican in November. ******************************************************************************* ------------------------------ Date: 28 Sep 1994 15:16:01 GMT From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!math.ohio-state.edu!jussieu.fr!cea.fr!usenet@network.ucsd.edu Subject: UK repeaters frequencies needed ... To: info-hams@ucsd.edu 73 to everyone, I'm searching repeaters freq. in VHF and UHF for UK and especially for KENT and SUSSEX. If someone can post that ... TNX Note : If you have the same thing for Italy ... Jean-Christophe MONIER Ingenieur Reseaux / Networks Engineer Athesa - C.E.A. Defense - France E-Mail : jcmonier@muguet.saclay.cea.fr Phone : (33/1) 69.08.56.41 ------------------------------ Date: 27 Sep 1994 14:12:07 -0400 From: newstf01.cr1.aol.com!newsbf01.news.aol.com!not-for-mail@uunet.uu.net Subject: Vertically Polarized Noise To: info-hams@ucsd.edu In article <369hac$qko@westnet.westnet.com>, lgreco@westnet.westnet.com (Luigi Greco) writes: >Why is most man-made noise vertically polarized? (quick-and-dirty explaination follows): It's mostly a function of how the noise is actually measured. That is, most man-made noise measurements of interest take place very near ground level (in a building, car, etc.). Since you're low to the ground, and the earth is a fairly good conductor at low frequencies (HF), the horizontal component of the noise electric field gets cancelled out due to the boundary condition imposed by the earth (same physics as vertical electric fields reflect without phase reversal, but horizontal ones phase shift 180 degrees). So in the process of observing these noise fields, only the vertically polarized ones exist at the measurement points. If you went up in the sky and measured the same quantity, you'd find both polarizations. scott nx7u ------------------------------ Date: 28 Sep 1994 22:06:21 GMT From: news.tek.com!tekgp4.cse.tek.com!royle@uunet.uu.net Subject: VTVMs? Anybody use these anymore? To: info-hams@ucsd.edu Tom Randolph (randolph@est.enet.dec.com): : I picked up a neat old VTVM ("Knight" by Allied Radio) for $3 at a flea : this. . . : Anybody still use these things? Any thoughts on a probe for it? How about : calibrating it? I'm gonna measure a few 1% resistors to get that scale set, but : I dunno about the voltage scales - maybe one of those 1.2V reference chips? Sure. Anybody with discriminating eyes can see that the VTVMs give very noticeably smoother readings, unlike the harsh, crystalline readings of the solid-state meters. I don't care what tests you run, the readings just look better. I understand that the Japanese are particularly fond of VTVMs, so there must be something to it. It's also been found that you get better readings if the probe cable's impedance matches the input impedance of the VTVM. (Boy, is the center conductor small!) Gold plated connectors help, too. Some authorities have reported that a green magic marker applied to the meter rim noticeably enhances readings, but I haven't tried this myself. Better get yours before they're all snatched up by the metrophiles! Sorry, sometimes I just can't resist. . . ;-] Roy Lewallen, W7EL roy.lewallen@tek.com ------------------------------ Date: 27 Sep 1994 18:20:01 GMT From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!wupost!bigfoot.wustl.edu!motel6.cec.wustl.edu!jlw3@network.ucsd.edu Subject: Why does Radio Shac care if I export HT202? ## To: info-hams@ucsd.edu In article , Barry Rose wrote: >In article lestrade@Ra.MsState.Edu (John Patrick Lestrade) writes: >>I am brand new to ham radio and yesterday in a RS when I asked aboout >>their sale on the HT202, the salesman asked me if I intended to take it >>out of the country. (I happened to be with a french friend whose accent >>was obvious.) I am not going, unfortunately, out of the country! >>can anyone enlighten me as to why this is `illegal'? > >I am not sure it is illegal but I have heard that the repeaters in Europe use >a different scheme than we do here. Here we use one pl tone to access a >repeater, (sub-audible tone that you must have installed in your radio to >brind up the repeater). This means that a rig made for the US will have to >have their type of tone encoder installed or you will not have access to their You are right about this. I have not traveled to europe, but you might notice a few things. In Europe, they, indeed, do not usually use pl tones for squelch. I believe, instead, they use an audible 1650 Hz (?) tone at the beginning of each transmission to key the repeater. You may also notice, if you check the product information guides from Icom, Yaesu, Alinco, etc. (those companies who sell both here and overseas) that there is usually both a US and European version of each model, plus maybe asian, etc. Remember that other countries have other band plans; some european countries have not 144-148 as the 2m band but other frequencies. What's really surprising is that the RS person would know about anything like this. It's quite out of their character to be educated ;) Anyway, this is what I understand --jesse AB5XC (btw, my call only took 8 weeks to process, unlike my tech+ call, which took 32 weeks!) ------------------------------ Date: Wed, 28 Sep 1994 19:27:59 GMT From: wang!dbushong@uunet.uu.net To: info-hams@ucsd.edu References , <367agl$c8a@nntpd.lkg.dec.com>, Subject : Re: Answer to "How far can I talk?" clifto@indep1.chi.il.us (Clifton T. Sharp) writes: > Uh, Todd, wanna try that again? (Clues below. :-) >In article , clifto@indep1.chi.il.us (Clifton T. Sharp) writes: >The formula is sqrt(2 * h). >In article <367agl$c8a@nntpd.lkg.dec.com> little@iamu.chi.dec.com (Todd Little) writes: >The formula is sqrt(2) * sqrt(h). This is 50% greater. Uh, Cliff, wanna try that again? (Clues below. :-) True, it is 50% greater than something, I suppose, but not of the correct answer. It is 0% greater than the correct answer. Let's look into this further, using real numbers for "h". Let "h" = 1,000,000 feet Formula 1) D = sqrt(2*h) = sqrt(2000000) = 1414.213... Formula 2) D = sqrt(2) * sqrt(h) = 1.414213... * 1000 = 1414.213... So that a million-foot-high antenna will talk about 1400 miles. Can I get one of them from Texas Towers? Dave, KZ1O -- Dave Bushong OPEN/image Recognition Products ------------------------------ Date: Mon, 26 Sep 1994 09:14:39 +0000 From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!EU.net!sun4nl!hacktic!cpzap!zap@network.ucsd.edu To: info-hams@ucsd.edu References , , Subject : Re: Why is aviation COM VHF *amplitude* modulated? In article cgwh@chevron.com (Curtis Wheeler) writes: > In article roy@nyu.edu (Roy Smith) writes: > > >dstock@hpqmdla.sqf.hp.com (David Stockton) wrote: > >> In this way the whole world (except > >> the odd reclusive country) would have to change over at once. > > >Why? You pick some unused band and simulcast AM on 118-136 MHz and FM on > >the other one using channel-pairing. That way, planes equipped with the > >new equpment can use it and people will the old stuff can continue to use > >that. Gradually (after 10 or 20 years, or whatever interval seems > >appropriate) you force the remaining few to switch over. > > >Not that I'm convinced this would be practical, but it's certainly > >possible. > > From a technical standpoint it would be possible. However there isn't any > suitable RF spectrum available for such an undertaking. Well it depends. Here at the AT-Centre we use paired VHF-UHF frequencies, which multicast upon demand. This is done for civil/military coordination. It will however be from a human standpoint impossible. If it's busy, then it takes a lot from the controller to listen to both frequencies together. But then, the militaries don't use these frequencies, because they have their own ATC's. -martin- ---------------------------------------------------------------------------- e-mail: zap@cpzap.xs4all.nl 'This message was brought to you, with the help of subluminal advertising.' ------------------------------ Date: Mon, 26 Sep 1994 09:15:54 +0000 From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!EU.net!sun4nl!hacktic!cpzap!zap@network.ucsd.edu To: info-hams@ucsd.edu References , <8g5Dc2j030n@cpzap.xs4all.nl>, <35uf24$mhr@cmcl2.NYU.EDU>³ã Subject : Re: Why is aviation COM VHF *amplitude* modulated? In article <35uf24$mhr@cmcl2.NYU.EDU> roy@mchip00.med.nyu.edu (Roy Smith) writes: > zap@cpzap.xs4all.nl (Martin Heffels) writes: > >AM also suffers much from ignition noise, generated by cars, which makes > >mobile comms very difficult. > > Why should a gasoline piston engine in a car produce any more or less > ignition noise than a gasoline piston engine in an airplane? In fact, the > airplane has twice as much ignition stuff per cylinder, so I would expect it > to produce more. Because an a/c engine is much better shielded than a car's engine. -martin- ---------------------------------------------------------------------------- e-mail: zap@cpzap.xs4all.nl 'This message was brought to you, with the help of subluminal advertising.' ------------------------------ End of Info-Hams Digest V94 #1073 ******************************