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Internet Message Format | 1994-11-13 | 25.4 KB

Date: Fri, 8 Apr 94 10:38:38 PDT From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu> Errors-To: Info-Hams-Errors@UCSD.Edu Reply-To: Info-Hams@UCSD.Edu Precedence: Bulk Subject: Info-Hams Digest V94 #390 To: Info-Hams Info-Hams Digest Fri, 8 Apr 94 Volume 94 : Issue 390 Today's Topics: (none) 6 meter band activity? Boeing 777 Rollout Specail Event Station Cable channel 18.. callsign.cs.buffalo.edu Daily Summary of Solar Geophysical Activity for 07 April Datapoint Multiple radios, single antenna...possible? Operation of Ham radios on planes Tweek & Calibrate Silent Play freqs! WANTED: Globe King 500A or 500B transmitter Send Replies or notes for publication to: <Info-Hams@UCSD.Edu> Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu> 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: 8 Apr 94 16:13:00 GMT From: news-mail-gateway@ucsd.edu Subject: (none) To: info-hams@ucsd.edu Discuss VHF packet and releated activities... ------------------------------ Date: Thu, 7 Apr 1994 14:25:50 GMT From: ihnp4.ucsd.edu!pacbell.com!att-out!walter!dancer.cc.bellcore.com!not-for-mail@network.ucsd.edu Subject: 6 meter band activity? To: info-hams@ucsd.edu In article <2ni3dd$rab@agate.berkeley.edu>, <mtrail@violet.berkeley.edu> wrote: > Hi, all! > After reading last month's QST article on the 6 meter band, I'm >curious as to people's experiences with the band, particularly here in the >Bay area. I've listened to a few FM repeater outputs, but haven't found a >lot of activity. How do people like/find the band? I just got my TS-690 up on six with a simple J-pole antenna made from RG58 cable. I trimmed it for the 52.4 transmit (about the middle of the FM repeater input frequencies). There's at least 6 repeaters I can use from home using the single tone frequency board that (the TU-8) is in the TS-690. There's probably other repeaters I might be able to use if I used a different tone, but that requires changing the DIP switch settings on the tone board. I haven't tried any CW or SSB contacts, but plan to when I can devote more time to build and erect a 6m beam antenna. Frankly, I think the 6m band is ripe for much heavier use, especially since much of the past TVI (channel 2) problems are less likely to occur with so many residents now receiving their TV feed via cable. One thing that will help generate more 6m activity is the better availability of 6m equipment. Azden's new line of mobile and HT units include 6m models (priced around $360 each) and Kenwood just announced the TS-60 all mode 100 (or was it 90?) watt transciever. I bought the TS-690 (Kenwood's TS-450 with 6m added) because I wanted a very good HF rig and for only several $100 more you get the TS-690 with 6m as opposed to the TS-450 without 6m. Hopefully we'll see more rigs dedicated to 6m or including 6m. I'd like a nice dual band mobile unit with both 6m and 2m. Standard Disclaimer- Any opinions, etc. are mine and NOT my employer's. ----------------------------------------------------------------------- Bill Sohl (K2UNK) BELLCORE (Bell Communications Research, Inc.) Morristown, NJ email via UUCP bcr!cc!whs70 201-829-2879 Weekdays email via Internet whs70@cc.bellcore.com > Also, how possible is sporadic-e propagation on 6 meter FM? > > Thanks, > Matt Trail KN6CR > > ------------------------------ Date: 7 Apr 94 19:54:07 GMT From: bcstec!muszynsk@uunet.uu.net Subject: Boeing 777 Rollout Specail Event Station To: info-hams@ucsd.edu Boeing 777 Rollout Special Event Station !! The BEARONS(Boeing Employee Amateur Radio Operators of the North) are running a special event station for the Boeing 777 rollout. Saturday April 9, 1994 7:00am - 5:00pm PST Callsign: KI7KU Frequencies: 146.92 - PL 123.0 80, 40, 20, 15 meter (lower end of general band) 10 meter (lower end of novice band) QSL cards to: KI7KU 2505 South Wells Way Camano Is, Wa 98292 ------------------------------ Date: 7 Apr 94 15:20:04 GMT From: ncrgw2.ncr.com!ncrhub2!tdbunews!nsc32!wps@uunet.uu.net Subject: Cable channel 18.. To: info-hams@ucsd.edu It is not only in San Diego. I was at home, Simi Valley, talking on my HT. I started to walk from the bedroom to the living room where my daughter was watching cable Ch 18 (I thing it is the Family Channel on CONMCAST in Simi). Suddenly she yelled at me. I then looked at the TV during my next transmission and the entire screen went blank. Now I am not anywhere near the TV when I am on my HT. Bill +-----------------------------------------------------------------+ | Bill Starkgraf wps@ElSegundoCA.ncr.com | | AT&T Global Information Solutions (310) 524-5754 | | El Segundo, CA (800) 222-8372 x5754 | | | | Call: KD6UQB Simi Settlers ARC | | Simi Valley, CA | +-----------------------------------------------------------------+ ------------------------------ Date: 8 Apr 94 18:13:33 GMT From: news-mail-gateway@ucsd.edu Subject: callsign.cs.buffalo.edu To: info-hams@ucsd.edu Some versions of TELNET handle the "2000" differently than others. telnet callsign.cs.buffalo.edu 2000 on some systems might be telnet callsign.cs.buffalo.edu/port=2000 on others ^^^^^^ Jim, NX9F ley@uwstout.edu ------------------------------ Date: 8 Apr 94 03:13:04 GMT From: agate!howland.reston.ans.net!cs.utexas.edu!utnut!utcsri!newsflash.concordia.ca!canopus.cc.umanitoba.ca!tribune.usask.ca!kakwa.ucs.ualberta.ca!quartz.ucs.ualberta.ca!alberta!ve6mgs!usenet@@. Subject: Daily Summary of Solar Geophysical Activity for 07 April To: info-hams@ucsd.edu /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY 07 APRIL, 1994 /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ (Based In-Part On SESC Observational Data) SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 07 APRIL, 1994 --------------------------------------------------------- NOTE: Background x-ray flux levels are less than A1.0. X-ray statistics given below should not be considered reliable absolute values. Energetic electrons at > 2 MeV are continuing at very high levels. !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 097, 04/07/94 10.7 FLUX=072.8 90-AVG=097 SSN=000 BKI=5553 3333 BAI=027 BGND-XRAY=A1.0 FLU1=9.7E+06 FLU10=1.1E+04 PKI=5565 4334 PAI=036 BOU-DEV=073,075,072,039,033,033,030,025 DEV-AVG=048 NT SWF=00:000 XRAY-MAX= A5.4 @ 1547UT XRAY-MIN= A1.0 @ 2350UT XRAY-AVG= A2.2 NEUTN-MAX= +002% @ 0905UT NEUTN-MIN= -002% @ 1550UT NEUTN-AVG= -0.0% PCA-MAX= +0.1DB @ 2355UT PCA-MIN= -0.4DB @ 2345UT PCA-AVG= -0.0DB BOUTF-MAX=55363NT @ 0129UT BOUTF-MIN=55295NT @ 0836UT BOUTF-AVG=55327NT GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+068,+000,+000 GOES6-MAX=P:+135NT@ 1845UT GOES6-MIN=N:-136NT@ 0320UT G6-AVG=+088,+033,-058 FLUXFCST=STD:075,075,075;SESC:075,075,075 BAI/PAI-FCST=030,030,025/035,035,030 KFCST=5556 6555 5555 5554 27DAY-AP=037,036 27DAY-KP=5555 4434 4465 5344 WARNINGS=*GSTRM;*AURMIDWRN ALERTS=**MINSTRM !!END-DATA!! NOTE: The Effective Sunspot Number for 06 APR 94 was 22.0. The Full Kp Indices for 06 APR 94 are: 5- 5- 6- 6- 5- 5- 4- 4+ The 3-Hr Ap Indices for 06 APR 94 are: 41 42 70 70 37 36 25 31 Greater than 2 MeV Electron Fluence for 07 APR is: 2.1E+09 SYNOPSIS OF ACTIVITY -------------------- Solar activity was very low. Solar activity forecast: solar activity is expected to be very low. The geomagnetic field has been unsettled to minor storm. High latitude stations saw periods of major to severe storm. Activity is most likely due to a well positioned coronal hole. Energetic electron fluxes (> 2 MeV) ranged from normal to very high for the period. Geophysical activity forecast: the geomagnetic field is expected to be at unsettled to minor storm levels for the next 48 hours, then unsettled to active for the remainder of the period. Event probabilities 08 apr-10 apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green Geomagnetic activity probabilities 08 apr-10 apr A. Middle Latitudes Active 20/30/30 Minor Storm 40/35/30 Major-Severe Storm 25/15/15 B. High Latitudes Active 15/30/30 Minor Storm 35/30/30 Major-Severe Storm 35/20/20 HF propagation conditions were below normal over all regions. No significant changes have been observed over the last 24 hours. High and polar latitudes continue to experience very poor to occasionally near-useless propagation, particularly on night-crossing circuits. Middle latitudes have observed fair to occassionally very poor propagation and low latitudes have seen generally fair propagation. Similar conditions are expected through 10 April. No significant improvements are expected until about 11 April when middle and low latitudes should begin to see some recovery. Higher latitudes should also begin improving, but at a slower rate. COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS ======================================================== REGIONS WITH SUNSPOTS. LOCATIONS VALID AT 07/2400Z APRIL -------------------------------------------------------- NMBR LOCATION LO AREA Z LL NN MAG TYPE NONE 7699 S09W31 320 PLAGE REGIONS DUE TO RETURN 08 APRIL TO 10 APRIL NMBR LAT LO 7693 N08 196 7692 N18 160 LISTING OF SOLAR ENERGETIC EVENTS FOR 07 APRIL, 1994 ---------------------------------------------------- A. ENERGETIC EVENTS: BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP NONE POSSIBLE CORONAL MASS EJECTION EVENTS FOR 07 APRIL, 1994 -------------------------------------------------------- BEGIN MAX END LOCATION TYPE SIZE DUR II IV NO EVENTS OBSERVED INFERRED CORONAL HOLES. LOCATIONS VALID AT 07/2400Z --------------------------------------------------- ISOLATED HOLES AND POLAR EXTENSIONS EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN 73 S50W10 S50W10 S28W90 S26W28 326 EXT NEG 033 10830A 74 N50W12 N30W27 N40W38 N60W24 309 EXT POS 011 10830A SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY ------------------------------------------------ Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz ------ ---- ---- ---- ---- -- ------ ------ --------- --------- --------- NO EVENTS OBSERVED. REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY ------------------------------------------------ C M X S 1 2 3 4 Total (%) -- -- -- -- -- -- -- -- --- ------ Uncorrellated: 0 0 0 0 0 0 0 0 000 ( 0.0) Total Events: 000 optical and x-ray. EVENTS WITH SWEEPS AND/OR OPTICAL PHENOMENA FOR THE LAST UTC DAY ---------------------------------------------------------------- Date Begin Max End Xray Op Region Locn Sweeps/Optical Observations ------ ---- ---- ---- ---- -- ------ ------ --------------------------- NO EVENTS OBSERVED. NOTES: All times are in Universal Time (UT). Characters preceding begin, max, and end times are defined as: B = Before, U = Uncertain, A = After. All times associated with x-ray flares (ex. flares which produce associated x-ray bursts) refer to the begin, max, and end times of the x-rays. Flares which are not associated with x-ray signatures use the optical observations to determine the begin, max, and end times. Acronyms used to identify sweeps and optical phenomena include: II = Type II Sweep Frequency Event III = Type III Sweep IV = Type IV Sweep V = Type V Sweep Continuum = Continuum Radio Event Loop = Loop Prominence System, Spray = Limb Spray, Surge = Bright Limb Surge, EPL = Eruptive Prominence on the Limb. ** End of Daily Report ** ------------------------------ Date: Mon, 4 Apr 1994 23:58:25 GMT From: wri!pea@uunet.uu.net Subject: Datapoint To: info-hams@ucsd.edu Just to let others know, I passed my Technician's exam on January 16, 1994 and just received my license today - April 4, 1994 - eleven (11) weeks after my exam. Have a nice day. Bruce N9WKE :-) ------------------------------ Date: 8 Apr 94 06:44:34 GMT From: agate!howland.reston.ans.net!vixen.cso.uiuc.edu!sdd.hp.com!saimiri.primate.wisc.edu!hpg30a.csc.cuhk.hk!uxmail!dma039.ust.hk!ee_hflo@ucbvax.berkeley.edu Subject: Multiple radios, single antenna...possible? To: info-hams@ucsd.edu John Russell Woodman (jrw@cyberspace.com) wrote: : I have a situation where I have three CB radios, only two of which I use : with any regularity, that I would like to connect to the same antenna. I : know that this will not affect receive capabilities except in the case of : some nominal line loss, but is it acceptable to keep the radios hooked in : tandem like this for transmitting? Are there antenna switchers that can : handle this sort of arrangement if keeping both radios online at the same : time will cause problems? Any information I can get on this would be : helpful since more than a few people in my area are interested in doing : the same sort of thing. If the channels in your radio are fixed you can use a duplexer to connect your radios together. However the channels are closed together,you should use big cavity filter. Michael Lo ------------------------------ Date: 8 Apr 94 14:18:08 GMT From: news-mail-gateway@ucsd.edu Subject: Operation of Ham radios on planes To: info-hams@ucsd.edu >Pete WB0FEW writes: >PS. Cellular phones are illegal to use in the air by FCC >regulation. There are NO exceptions to that rule in the USA. I did not know that. Why are they verbotten? Is it because they could span several cells and thereby avoid toll charges, or is there a problem caused by their operation? =Mark= n2rpz@eso.mc.xerox.com ------------------------------ Date: Thu, 7 Apr 1994 14:53:18 GMT From: ihnp4.ucsd.edu!usc!math.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!news.csuohio.edu!garfield.csuohio.edu!mike@network.ucsd.edu Subject: Tweek & Calibrate Silent Play freqs! To: info-hams@ucsd.edu I was fiddling with my Silent Play transmitter last nite and noticed that when I ran it through my RS RF frequency counter, it had a transmit freq range of 85.5 - 90MHz. This seemed strange since it's advertised as 89 - 93MHz (as well as it being outside FCC specs). I also verified at least the top 90MHz limit by tuning it into a digital frequency display FM receiver. So, I discovered a way to crudely re-calibrate the frequency range of this device to get it back into specs. 1. Take the case off (two small black Phillips screws). Be careful of the two plastic molded-in tabs on the opposite edge. You have to twist the case a little, but don't break the tabs. 2. Remove the screw holding the circuit board (near same edge of case as the two plastic tabs). Be gentle with the antenna connection since the wire is glued to the case and then soldered to the board. It flops around while you handle the board. 3. Hold the circuit board with components facing you, oriented so the circuit board looks like a capital "P". The 1/8" stereo plug will be at the top, the two slide switches will be on the left edge. 4. At the very top right corner, just to the right of the slim LED and above a small capacitor, you will see a wound copper air-core inductor (it looks like a copper spring). [At this point, I solved the mystery of why the tuning was out of whack on the transmitter: When I opened the case when I FIRST got the unit (to explore!), I noticed the coils of this inductor were bent, i.e., a few coils were pushed apart, as if done with a fingernail. I though I had done it myself accidentally when taking the thing apart, so naturally I pressed all the coils back together again. Mistake!!! ] 5. It turns out that carefully bending the coils together and apart is what provides the calibration of the tuning range. There are no adjustable inductors anywhere to be seen, so this must be how they calibrate the unit at the factory. Anyway, I simply re-bent the coils apart and played with the tuning knob and bending some more until I got it back to the range 89-93MHz by watching my RF freq counter. It was pretty easy. If you don't have a RF freq counter, you could easily do it by tuning an FM receiver with a digital display (like one in your car), while the Silent Play is transmitting, while bending the inductor coils. Do a little at a time. Perhaps with some hacking, you could replace that simple inductor with an adjustable one to see how far you can shift the frequency range. I'm not gonna do this type of mod, but I did discover by waving my hand near the circuit board, I was able to get the thing to jump to around 150MHz in spurts, but who knows exactly what components were affected by my hand to make it do this (there are some ferrite core inductors too). This gizmo probably has little use outside the FM broadcast band anyway (unless you wanted to perhaps retune it up to the 2M ham band for some reason). I also noticed that when I put the plastic cover between my hand and the circuit board, the freq remained stable again (maybe the plastic is impregnated with something conductive to shield the circuits from inductive/capacitive coupling from one's hand??) 6. When you put the cover back on, make sure the plastic fingers on the two slide switches seat properly back into their respective plastic finger-slides. Another nifty hint: The transmitter normally draws about 9 mA of current. I removed the silly LED and it dropped to just under 6 mA current draw, and did not affect performance or frequency. This could be useful not only in extending xmit time on one set of batts, but make it even easier to run the thing off solar cells if you're so inclined. FYI, the receiver unit draws about 15 - 20 mA, depending on if the stereo LED is lit and the volume setting. I did get it to jump to a whopping 80 mA when I pulled the earphone plug out of the receiver half way - it must short the audio amplifier across one of the plug conductors causing it to pull full current thru the amp. Hacking for no apparent reason, Mike -- ^v^v^v^v^v^v^v^v^v^v^v^v^v^v^v Catch the WAVE ^v^v^v^v^v^v^v^v^v^v^v^v^v^v^v Michael Mayer, Senior Technical Support Engineer Amateur Radio KB8RJO Visual Numerics, Inc. 32915 Aurora Rd. Suite 160, Solon OH 44139 USA Email: mayer@boulder.vni.com Human: 216-248-4900 Fax: 216-248-2733 v^v^v^v^v^v^v^v^v^v Good * Cheap * Quick (pick any two) ^v^v^v^v^v^v^v^v^v^ ------------------------------ Date: 8 Apr 94 10:57:21 GMT From: agate!usenet.ins.cwru.edu!eff!news.kei.com!ub!freenet.buffalo.edu!am576@ucbvax.berkeley.edu Subject: WANTED: Globe King 500A or 500B transmitter To: info-hams@ucsd.edu Looking for a Globe King 500A or 500B transmitter. Must be in very good condition. No dents, scratches, or holes. Please respond via E-Mail. Thanks. Joe K2VXV -- ------------------------------ Date: Thu, 7 Apr 94 15:14:07 GMT From: ihnp4.ucsd.edu!swrinde!gatech!newsxfer.itd.umich.edu!nntp.cs.ubc.ca!alberta!adec23!mark@network.ucsd.edu To: info-hams@ucsd.edu References <2nhujs$7hg@news.tamu.edu>, <brett_miller.109.0009F70E@ccm.hf.intel.com>, <2nsuqu$cde@usenet.INS.CWRU.Edu> Subject : Re: STOP SENDING HAMS ON USENET CRAP !!! trier@odin.ins.cwru.edu (Stephen C. Trier) writes: >Actually, a properly cross-posted article does not use any more bandwidth >than an article posted to only one newsgroup. That is why crossposting >is different from posting many times. > >The exception is when someone has a feed that gets one of the groups and >not the other. Then I agree, he might have a valid point if he says >that it is a waste of bandwidth _on that link_. Why, only if the article is *not* wanted in either one of the groups he is reading. Purely subjective I would 'spose. >Should the list go into r.r.i only? I don't really care. I would like >to see it still posted, but it doesn't matter to me where. A suggestion that may have merit to please the two camps I see forming in the voting mailbox (I know, this can affect the straw poll): Post the list once every 3 or six months instead, with a pointer every month. I would prefer 6 months, with `diff' postings (I don't actually know how small these will be, at the end of this month I will *see*) with pointers, but I am just a lowly volunteer ;-/ and will *try* to accept the direction of the ham community. The full list still up to date at buffalu.edu and on the email server. This discussion should probably be in the rra-wg list, but for some reason *non* of my email is getting *to* the list, but I still see the list submissions. I think the public airing helps form direction though. Ciao -- 73 de VE6MGS/Mark -sk- ------------------------------ Date: Thu, 7 Apr 94 15:03:32 GMT From: ihnp4.ucsd.edu!swrinde!gatech!newsxfer.itd.umich.edu!nntp.cs.ubc.ca!alberta!adec23!mark@network.ucsd.edu To: info-hams@ucsd.edu References <brett_miller.89.000EBED5@ccm.hf.intel.com>, <2nhujs$7hg@news.tamu.edu>, <brett_miller.109.0009F70E@ccm.hf.intel.com>│╨ Subject : Re: STOP SENDING HAMS ON USENET CRAP !!! brett_miller@ccm.hf.intel.com (Brett Miller - N7OLQ) writes: >I think that is the main problem. Cross-posting such lengthy articles is just >a pure waste of bandwidth. Please, tell me, what bandwidth is it wasting? There is no extra use of the backbone, or my modem ... >It would be nice if Mark's info were on a Telnet database server, like a >callsign server. I have no Internet access at the moment, if I did, I would have written a server years ago. Devon Bowen currently promised to do this sooner or later, for the buffalo.edu site. I have no intention of forcing him to do it. However, if someone here volunteers ... I have an email server, another gent is setting up a WWW server, and there is ftp access to buffalo.edu. >That way you could do a quick look-up of other hams email addresses by name >or callsign. We want to see this database used as part of the callbook lookup servers. I forsee a day that *I* will not have to do the work associated with compiling the list, but when that day comes, we *only* lose the parsing I do of the .signature lines. With the callsign database, and the articles flowing through the system, this list *can* be maintained automatically and would not have a person with an `ego' behind it :-). Setting up this automation is about half done ... Ciao -- Mark ------------------------------ Date: 8 Apr 94 13:13:49 GMT From: agate!howland.reston.ans.net!math.ohio-state.edu!hobbes.physics.uiowa.edu!news.uiowa.edu!panda@ucbvax.berkeley.edu To: info-hams@ucsd.edu References <CnoCCu.s6@armory.com>, <1994Apr4.073149.1@matrix.cs.wright.edu>, <2o11ppINN31b@ctron-news.ctron.com>ews Reply-To : scottm@chop.isca.uiowa.edu Subject : Re: Operation of Ham radios on planes I heard that the Russian plane that crashed in Siberia was a result of the pilot's kid using a two meter HT. ;-) The above message was sarcasm. This notice has been posted for the humor impaired. --- _________________________________________ The opinions in this post are mine and my cat's, not my employer's. scottm@csg.mot.com (Scott F. Migaldi) ------------------------------ End of Info-Hams Digest V94 #390 ******************************