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- Date: Fri, 1 Jul 94 17:35:00 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 #731
- To: Info-Hams
-
-
- Info-Hams Digest Fri, 1 Jul 94 Volume 94 : Issue 731
-
- Today's Topics:
- AEA IsoLoop - Opinion
- Best dual-band HT antenna
- Call-Sign Prefixes (3 msgs)
- FIELD DAY 1994 REPORT
- IC229H
- IPS Daily Report - 01 July 94
- Newbie license question -- change of address
- Re:Call-Sign Prefixes
- Temp. Conversion Chart: F & C?
- Test-to-license-in-hand time
- Waiting for License? Wait some more.
- Where is the best place to install a low pass filter?
-
- 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: Fri, 1 Jul 1994 19:15:08 GMT
- From: ihnp4.ucsd.edu!sdd.hp.com!col.hp.com!srgenprp!alanb@network.ucsd.edu
- Subject: AEA IsoLoop - Opinion
- To: info-hams@ucsd.edu
-
- David Stockton (dstock@hpqmoca.sqf.hp.com) wrote:
- : Alan Bloom (alanb@hpnmarb.sr.hp.com) wrote:
-
- : : The laws of physics show no such thing. It is theoretically possible
- : : for a small loop to be 100% efficient. It's true that it's hard to
- : : approach that ideal in practice, but the Isoloop comes impressively
- : : close.
-
- : ... 100% efficiency can be approached, and the result on transmit is
- : easily understood; all the watts you stuff up the cable get radiated.
- : On receive, it is possible to get different levels of output from
- : different 100% efficient, perfect, lossless antennae. The difference is
- : in the effective capture area of different designs. ...
-
- I can't tell for sure from the above quote whether you made the famous
- antenna aperture mistake or not. Please forgive me if the following is
- something you already know:
-
- "Two antennas of equal gain have the same aperture."
-
- For example, a dipole has an aperture of approximately 1/8 square
- wavelength. A small 100%-efficient loop antenna has only slightly less
- aperture (i.e. almost the same gain) no matter how physically small the
- loop is. It seems counter-intuitive that a loop with an area of
- 1/500 square wavelength can have approximately the same aperture as a
- full-sized half-wave dipole, but it's a fact.
-
- Having said that, let me admit that in real life, 100%-efficient
- small loop antennas can be devilishly difficult to build. The radiation
- resistance of a small loop is proportional to the square of the loop
- area, which is proportional to the square of the diameter. So the
- radiation resistance is proportional to the FOURTH POWER of the loop
- diameter. For example, a 1-meter loop on the 20 meter band has a
- radiation resistance on the order of .04 ohms (as I recall). If the
- loop's loss resistance is a tenth of an ohm, then the antenna
- efficiency is only 29% (-5.4 dB).
-
- AEA did a couple clever things to overcome efficiency problems in the
- Isoloop. One was to use a single loop coupling, which eliminates lossy
- matching coils or transformers. The other was to use a split-stator
- capacitor, which removes the need to run high circulating currents
- through a sliding contact. I noticed that the person who designed the
- QST article's Isoloop clone missed that subtlety in the design.
-
- AL N1AL
-
- ------------------------------
-
- Date: 29 Jun 94 15:43:40 EDT
- From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!ceylon!sundog.tiac.net!usenet.elf.com!rpi!psinntp!main03!landisj@network.ucsd.edu
- Subject: Best dual-band HT antenna
- To: info-hams@ucsd.edu
-
- In article <Cs4DpA.MEq@cup.hp.com>, stefanis@ptp.hp.com (Nick Stefanisko) writes:
- > I have a Comet CH-72S, it is much better than the duck I got with my IC24at.
- > But it seams to work about the same as the one I got with my FT-530(Yaesu).
- > The one bad thing about the Comet is that it is 15inces long. They say
- The stock Yaesu duck (YHA28) on my FT470 works well too. About the same as an
- Anli dual band duck that I had bought before. The Yaesu's about 8" but the
- Anli's about 15" too. FYI, even IN a car they both work much better than an
- MFJ dual band mag-mount mobile dummy load on the roof!
- Joe - AA3GN
- --
- Joe Landis - System & Network Mgr. - North American Drager Co. Telford, PA
- landisj@drager.com | uupsi5!main03!landisj | AA3GN@WB3JOE.#EPA.PA.USA
- Opinions are mine only, and do not reflect those of my employer.
-
- ------------------------------
-
- Date: 1 Jul 1994 18:56:54 GMT
- From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!math.ohio-state.edu!magnus.acs.ohio-state.edu!aaletras@network.ucsd.edu
- Subject: Call-Sign Prefixes
- To: info-hams@ucsd.edu
-
- > I am going to be travelling through the U.S. this summer, and I
- >already posted a message asking whether my Canadian Amateur license is good
- >in the U.S. as well, to which the answer was Yes. Apparently I have to
- >identify myself with my callsign followed by the prefix followed by "\ <and
- >then the prefix of the area that I'm in" How do I know what the prefix
- >should be? The ARRL handbook just says that the U.S. callsign prefixes are
- >between "WAA-WZZ"!
- > Graham
- >
-
- I have been in OHIO for 3 years and I have been identifying myself as
- N8/SV2ABQ
-
- It could have easily been W8/SV2ABQ or K8/SV2ABQ !!!
- (As courtesy to the country you are visiting you preceed your
- callsign with its prefix)
-
- anthony N8/SV2ABQ
- aletras.2@osu.edu
-
- ------------------------------
-
- Date: 1 Jul 1994 19:07:07 GMT
- From: ihnp4.ucsd.edu!agate!cat.cis.Brown.EDU!NewsWatcher!user@network.ucsd.edu
- Subject: Call-Sign Prefixes
- To: info-hams@ucsd.edu
-
- In article <48038@mindlink.bc.ca>, Graham_Butler@mindlink.bc.ca (Graham
- Butler) wrote:
-
- > I am going to be travelling through the U.S. this summer, and I
- > already posted a message asking whether my Canadian Amateur license is good
- > in the U.S. as well, to which the answer was Yes. Apparently I have to
- > identify myself with my callsign followed by the prefix followed by "\ <and
- > then the prefix of the area that I'm in" How do I know what the prefix
- > should be? The ARRL handbook just says that the U.S. callsign prefixes are
- > between "WAA-WZZ"!
- > Graham
-
- Every year we have a visitor from the UK and he always signs as G3YWI/W1 or
- G3YWI STROKE WHISKEY ONE. I have a feeling you might use the same although
- you'll be moving from call region to call region. Check with the folks at
- the ARRL.
-
- **DISCLAIMER** Even though I disagree with some of the ARRL's policies
- they, on some occasions, do provide admirable service to amateurs.
-
- --
- == Tony Pelliccio, KD1NR
- == Anthony_Pelliccio@brown.edu, Tel. (401) 863-1880 Fax. (401) 863-2269
- == The opinions above are my own and not those of my employer.
-
- ------------------------------
-
- Date: 1 Jul 1994 19:42:46 GMT
- From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!news.umbc.edu!haven.umd.edu!cville-srv.wam.umd.edu!ham@network.ucsd.edu
- Subject: Call-Sign Prefixes
- To: info-hams@ucsd.edu
-
- In article <Anthony_Pelliccio-010794150655@138.16.64.44>,
- Tony Pelliccio <Anthony_Pelliccio@brown.edu> wrote:
- >In article <48038@mindlink.bc.ca>, Graham_Butler@mindlink.bc.ca (Graham
- >Butler) wrote:
- >
- >> I am going to be travelling through the U.S. this summer, and I
- >> already posted a message asking whether my Canadian Amateur license is good
- >> in the U.S. as well, to which the answer was Yes. Apparently I have to
- >> identify myself with my callsign followed by the prefix followed by "\ <and
- >> then the prefix of the area that I'm in" How do I know what the prefix
- >> should be? The ARRL handbook just says that the U.S. callsign prefixes are
- >> between "WAA-WZZ"!
- >> Graham
- >
- >Every year we have a visitor from the UK and he always signs as G3YWI/W1 or
- >G3YWI STROKE WHISKEY ONE. I have a feeling you might use the same although
- >you'll be moving from call region to call region. Check with the folks at
- >the ARRL.
- >
- I thought this was the way, too. Apparently the legal way to do it is
-
- VE3/NF3I, as I'm operating in Canada but using my own call.
-
- Similarly, when a VE station (VE#XXX) is in Michigan (8-land), he would
- sign W8/VE#XXX, NOT VE#XXX/W8. Just the legalities of it; it doesn't
- really matter to which which anybody actually does, as the general idea
- still comes across.
-
- Call area 0 Colorado, Kansas, Nebraska, South & North Dakota, Minnesota,
- Iowa, Missouri
- 1 Maine, Vermont, New Hampshire, Massachusetts, Rhode Is.,
- Connecticut
- 2 New York & New Jersey
- 3 Delaware, Maryland, Pennsylvania, and District of Columbia
- 4 Virginia, Kentucky, Tennessee, North & South Carolina,
- Georgia, Florida, Alabama
- 5 Mississippi, Louisiana, Texas, Oklahoma, New Mexico,
- Arkansas
- 6 California
- 7 Arizona, Nevada, Utah, Wyoming, Idaho, Oregon, Washington,
- Montana
- 8 Ohio, Michigan, West Virginis
- 9 Illinois, Inidana, Wisconsin
-
- Good luck.
-
- --
- 73, _________ _________ The
- \ / Long Original
- Scott Rosenfeld Amateur Radio NF3I Burtonsville, MD | Live $5.00
- WAC-CW/SSB WAS DXCC - 125 QSLed on dipoles __________| Dipoles! Antenna!
-
- ------------------------------
-
- Date: 01 Jul 1994 20:15:05 GMT
- From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!news.cac.psu.edu!news.pop.psu.edu!psuvax1!news.cc.swarthmore.edu!netnews.upenn.edu!netnews.upenn.edu!yee@network.ucsd.edu
- Subject: FIELD DAY 1994 REPORT
- To: info-hams@ucsd.edu
-
- >How did you operate a 9A station? I coordinated the Clear Lake ARC's Field
- >Day using 5A with a Novice/Tech + and OSCAR (145MHz and 430MHz) and we had
- >terrible interference between the HF rigs-- if you were monitoring on one
- >band and another station keyed up, you heard "CQ Field Day" from the
- >nearby tranceiver that would swamp out any other signal you were trying to
- >receive.
-
- W3QV, 9A, Eastern PA.
-
- N3IEI was the one primarily responsible for running the show.
-
- Well, we were at the antenna site for all the commercial TV stations in the
- Philly area. Surprisingly, we did not have trouble with interference with
- their HIGH power transmissions. AS for interference between ham stations,
- we were in the middle of a field so were able to spread out a bit. Some
- antennas were strung out on the TV station towers. Others used their own
- stand alone masts. A cherry picker was available to string up on trees.
- Due to the ability to spread out all over the place and the ability to place
- antennas whereever we wished, there were no interference problems.
-
- It helps when one of they guys running Field Day is the network's VP in
- charge of engineering :) Using company equipment was no problem (i.e.,
- toilet facilities, emergency generators, towers). I got a great tour
- of the NBC (? Channel 3, Philadelphia) transmission facilities to boot!
-
- --
- Medical Image Processing Group | 73 de Conway Yee, N2JWQ
- 411 Blockley Hall | EMAIL : yee@mipg.upenn.edu
- 423 Guardian Drive | TELEPHONE : 1 (215) 662-6780
- Philadelphia, PA 19104-6021 (USA) | FAX : 1 (215) 898-9145
-
- ------------------------------
-
- Date: Fri, 01 Jul 94 14:33:16 -0700 (PDT)
- From: ihnp4.ucsd.edu!library.ucla.edu!agate!deep.rsoft.bc.ca!mindlink.bc.ca!a76@network.ucsd.edu
- Subject: IC229H
- To: info-hams@ucsd.edu
-
- Hi...
-
- I'm wondering if anybody can help me with this problem that I'm having with
- my IC-229H... For some odd reason every few days, with the radio turned
- off, the memory in the radio is dumped, I've had the backup battery changed
- already so it couldn't be that. I don't know if this is a common problem
- or not, but if anybody knows what could be wrong please leave me a message,
- thanks. 73
-
- Sam_Oben@mindlink.bc.ca
- or
- Cabot@shoreline.
- ca
-
- ------------------------------
-
- Date: Fri, 1 Jul 1994 23:17:49 GMT
- From: ihnp4.ucsd.edu!agate!msuinfo!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!ipso!rwc@network.ucsd.edu
- Subject: IPS Daily Report - 01 July 94
- To: info-hams@ucsd.edu
-
- SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
- ISSUED AT 1/2330Z JULY 1994 BY IPS RADIO AND SPACE SERVICES
- FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY.
- SUMMARY FOR 1 JULY AND FORECAST UP TO 4 JULY
-
- IPS Disturbance Warning 17 was issued on 22 June and is current for
- interval 24 June to 4 July
- -----------------------------------------------------------
- 1A. SOLAR SUMMARY
- Activity: moderate
-
- Flares: none.
-
- Observed 10.7 cm flux/Equivalent Sunspot Number : 087/030
-
- GOES satellite data for 30 June
- Daily Proton Fluence >1 MeV: 2.7E+06
- Daily Proton Fluence >10 MeV: 6.2E+04
- Daily Electron Fluence >2 MeV: 4.8E+08
- X-ray background: A7.8
- Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
-
- 1B. SOLAR FORECAST
- 02 July 03 July 04 July
- Activity Low Low Low
- Fadeouts None expected None expected None expected
-
- Forecast 10.7 cm flux/Equivalent Sunspot Number : 089/033
-
- 1C. SOLAR COMMENT
- None.
- -----------------------------------------------------------
- 2A. MAGNETIC SUMMARY
- Geomagnetic field at Learmonth: quiet to active
-
- Estimated Indices : A K Observed A Index 30 June
- Learmonth 22 4444 2244
- Fredericksburg 17 17
- Planetary 18 17
-
- Observed Kp for 30 June: 3444 3333
-
-
- 2B. MAGNETIC FORECAST
- DATE Ap CONDITIONS
- 02 Jul 15 Unsettled to active.
- 03 Jul 20 Unsettled to active.
- 04 Jul 15 Unsettled to active.
-
- 2C. MAGNETIC COMMENT
- No significant effect is expected from the M2 flare that occurred
- late on 30 June.
- -----------------------------------------------------------
- 3A. GLOBAL HF PROPAGATION SUMMARY
- LATITUDE BAND
- DATE LOW MIDDLE HIGH
- 01 Jul fair-normal fair poor-normal
- PCA Event : None.
- 3B. GLOBAL HF PROPAGATION FORECAST
- LATITUDE BAND
- DATE LOW MIDDLE HIGH
- 02 Jul normal fair-normal poor-fair
- 03 Jul normal fair-normal poor-fair
- 04 Jul normal fair-normal poor-fair
- 3C. GLOBAL HF PROPAGATION COMMENT
- Geomagnetic activity continues to degrade propagation conditions at
- mid and high lats.
- -----------------------------------------------------------
- 4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
- MUFs at Sydney were near predicted monthly values during local
- daylight hours, and 15-40% enhanced during local night.
-
- Observed T index for 01 July: 39
-
- Predicted Monthly T Index for July is 30.
-
- 4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
- DATE T-index MUFs
- 02 Jul 25 Near predicted monthly values.
- 03 Jul 30 Near predicted monthly values.
- 04 Jul 30 Near predicted monthly values.
-
-
- 4C. AUSTRALIAN REGION COMMENT
- Regular Sporadic E layer and Spread F may have degraded local
- propagations conditions yesterday. Similar conditions are expected
- for today.
-
- --
- IPS Regional Warning Centre, Sydney |IPS Radio and Space Services
- email: rwc@ips.oz.au fax: +61 2 4148331 |PO Box 5606
- RWC Duty Forecaster tel: +61 2 4148329 |West Chatswood NSW 2057
- Recorded Message tel: +61 2 4148330 |AUSTRALIA
-
- ------------------------------
-
- Date: 1 Jul 1994 18:54:03 GMT
- From: ihnp4.ucsd.edu!sdd.hp.com!hpscit.sc.hp.com!icon!hpchase.rose.hp.com!cmoore@network.ucsd.edu
- Subject: Newbie license question -- change of address
- To: info-hams@ucsd.edu
-
- Freeman A. Kilpatrick (fkilpatr@afit.af.mil) wrote:
- : I recently took my tech exam (May 16), and I'm now waiting the long
- : four months for my license. However, I moved this week, and I'm not
- : sure if I should file a change of address with the FCC, or if I
- : should just wait for the normal Post Office forwarding. Can anyone
- : give me any guidance?
-
- This is only a partial answer to your question. You should definitely
- file a change of address with the FCC by filling out another Form 610
- and mark the change of address box. You should do this anytime you move.
-
- However, you have a unique situation in that you don't actually have a
- license yet, so you have to figure out what to do about getting your
- initial license. My guess is that the post office forwarding should
- take care of it - you might want to check with the post office about
- how long the forwarding is in effect. Then, once you get your callsign,
- file the form 610 to let the FCC know where you've moved to.
-
- Chris Moore
- N6IYS
- cmoore@cancun.rose.hp.com
-
- ------------------------------
-
- Date: 01 Jul 1994 19:26:57 GMT
- From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!ceylon!news2.near.net!info-server.bbn.com!news!levin@network.ucsd.edu
- Subject: Re:Call-Sign Prefixes
- To: info-hams@ucsd.edu
-
- In article <2v1otm$rku@charm.magnus.acs.ohio-state.edu> aaletras@magnus.acs.ohio-state.edu (Anthony H Aletras) writes:
- > Apparently I have to
- >identify myself with my callsign followed by the prefix followed by "\ <and
- >then the prefix of the area that I'm in" How do I know what the prefix
- >should be?
-
- I have been in OHIO for 3 years and I have been identifying myself as
- N8/SV2ABQ
-
- It could have easily been W8/SV2ABQ or K8/SV2ABQ !!!
-
- The usual is to use W8 (or the appropriate number for the call
- district); or KH6 or KL7 or KP4 if you are visiting, say, Hawaii or
- Alaska or Puerto Rico.
-
- (As courtesy to the country you are visiting you preceed your
- callsign with its prefix)
-
- In the case of Canadian hams, this is governed by the reciprocal
- agreement between the two countries; I don't know the answer, but I
- think this may be incorrect for hams from Canada.
-
- /JBL
- =
- Nets: levin@bbn.com | "Oops."
- pots: (617)873-3463 |
- ARS: KD1ON | -- Lothos
-
- ------------------------------
-
- Date: 30 Jun 94 14:41:58 EDT
- From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!ceylon!sundog.tiac.net!usenet.elf.com!rpi!psinntp!main03!landisj@network.ucsd.edu
- Subject: Temp. Conversion Chart: F & C?
- To: info-hams@ucsd.edu
-
- In article <Cs6L10.GwK@hpcvsnz.cv.hp.com>, tomb@lsid.hp.com (Tom Bruhns) writes:
- > Heh, heh, an even easier way to solve the whole problem would be for
- > us Americans to just drop F, then there would be no need for conversions.
- > (Easy for me to say--I was trained as a chemist. What the heck is
- > degrees F?? ;-) Does anyone in the world besides us use F??
- >
- > 73, K7ITM
- >
- Maybe the world ought to drop C and adopt F. :-) :-) :-)
- --
- Joe Landis - System & Network Mgr. - North American Drager Co. Telford, PA
- landisj@drager.com | uupsi5!main03!landisj | AA3GN@WB3JOE.#EPA.PA.USA
- Opinions are mine only, and do not reflect those of my employer.
-
- ------------------------------
-
- Date: 1 Jul 1994 23:49:04 GMT
- From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!vixen.cso.uiuc.edu!prairienet.org!dhughes@network.ucsd.edu
- Subject: Test-to-license-in-hand time
- To: info-hams@ucsd.edu
-
- Passed technician test: March 20
-
- Call issued: June 21
-
- License mailed: June 27
-
- License received: July 1
-
- I live in Urbana, IL--not a 4-day trip from PA....
-
-
- ---Dan, N9XDK
- --
-
- ------------------------------
-
- Date: 1 Jul 1994 17:37:03 -0400
- From: ihnp4.ucsd.edu!swrinde!gatech!howland.reston.ans.net!news.ans.net!newstf01.cr1.aol.com!search01.news.aol.com!not-for-mail@network.ucsd.edu
- Subject: Waiting for License? Wait some more.
- To: info-hams@ucsd.edu
-
- It took me ten weeks to the day from when I passed my test until I
- received my license. It was tough waiting all those weeks.
-
- Warren Whitby
- KE4ITL
-
- ------------------------------
-
- Date: 1 Jul 1994 19:40:03 GMT
- From: ihnp4.ucsd.edu!usc!nic-nac.CSU.net!charnel.ecst.csuchico.edu!yeshua.marcam.com!news.kei.com!ssd.intel.com!chnews!scorpion.ch.intel.com!jbromley@network.ucsd.edu
- Subject: Where is the best place to install a low pass filter?
- To: info-hams@ucsd.edu
-
- tom_boza@ccm.hf.intel.com (Tom Boza, WB7ASR) writes:
-
- >>Can someone tell me where the best place is to install my
- >>Drake 1KW low pass filter?
-
- >> 1) Between my HF transceiver and my 1KW RF amp
- >> 2) Between my 1 KW RF amp and my 1KW antenna tuner
- >> 3) Between my 1KW antenna tuner and my antenna
- >> 4) Sell it at the next ham fest
- >> 5) Anywhere after the transceiver
-
- In article <2v1jcu$j87@hammer.msfc.nasa.gov>,
- Herb Sims, KU0C <sims@sauron.msfc.nasa.gov> wrote:
-
- >The answer is 1. The reason is as follows:
-
- >The transceiver is solid state and thus generates the most harmonics
- >due to non- linear characteristics (this applies to all amplifiers).
- >So if the the filter is between the rig and amp the harmonics from
- >the rig will be attenuated and thus not have any chance to be
- >amplified by the amp.
-
- I don't think it is necessarily true that solid-state -> higher harmonics.
-
- Regardless of this, though, modern transceivers have a bank of
- low-pass filters that are switched into the output line dependent on
- operating frequency. These filters assure that the transceiver
- exceeds Part 97 requirements over the entire spectrum.
-
- >The second reason is (assuming a tube amp) that the amplifier
- >basically has a matching network on both the input and output of the
- >amplifier, what you are doing when you tune the amplifier is matching
- >the output impedance of the tubes (the amplifier) to the antenna (50
- >ohms). Since this tuning process has a small operating range (also
- >known as bandwidth) the harmonics never make it out of the amplifier.
-
- Well, imperfect components rear their ugly heads. The tuning networks
- you describe are made out of solenoidal coils and wire-connected
- capacitors that become something else at VHF. These components don't
- supply the rejection you might think they do up there at the 23rd
- harmonic. And he *was* asking about a TVI filter. Those are designed
- with a 41 MHz corner, at least an 80 dB/decade roll-off, and shielded
- compartments between sections.
-
- However, in this era of zero-bias triodes, most amplifiers run class
- B (linear), even for CW. So the prime culprit in amateur-caused
- TVI cases, the over-driven, class-C operated, plate-modulated final
- tube sitting on a breadboard has, thankfully, faded into history.
- Today's HF rigs, even the max. power jobs, are pretty clean well
- up through VHF.
-
- I still opt for 2), although it's more of an insurance policy.
-
- Jim Bromley, W5GYJ <jbromley@sedona.intel.com>
-
- ------------------------------
-
- Date: 1 Jul 1994 14:34 CDT
- From: ihnp4.ucsd.edu!swrinde!news.uh.edu!elroy.uh.edu!st4j9@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <2upulv$fis@nyx10.cs.du.edu>, <2uv5qr$j2n@nntpd.lkg.dec.com>, <YEE.94Jun30180803@mipgsun.mipg.upenn.edu>
- Subject : Re: FIELD DAY 1994 REPORT
-
- In article <YEE.94Jun30180803@mipgsun.mipg.upenn.edu>, yee@mipg.upenn.edu (Conway Yee) writes...
- >I went with a local club which ran a 9A station. Had a ball but
- ^^
- >learned a big lesson. DO NOT bring your girlfriend with you. I had
- >to leave early since she got bored. C'est la vie.
- >
- >
- >--
- >Medical Image Processing Group | 73 de Conway Yee, N2JWQ
- >411 Blockley Hall | EMAIL : yee@mipg.upenn.edu
- >423 Guardian Drive | TELEPHONE : 1 (215) 662-6780
- >Philadelphia, PA 19104-6021 (USA) | FAX : 1 (215) 898-9145
-
- How did you operate a 9A station? I coordinated the Clear Lake ARC's Field
- Day using 5A with a Novice/Tech + and OSCAR (145MHz and 430MHz) and we had
- terrible interference between the HF rigs-- if you were monitoring on one
- band and another station keyed up, you heard "CQ Field Day" from the
- nearby tranceiver that would swamp out any other signal you were trying to
- receive.
-
- 73's de kb5pgy
-
- ------------------------------
-
- Date: Fri, 1 Jul 1994 19:27:30 GMT
- From: ihnp4.ucsd.edu!swrinde!gatech!news-feed-1.peachnet.edu!news.duke.edu!eff!news.umbc.edu!europa.eng.gtefsd.com!ulowell!wang!dbushong@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <CryHrM.DKF@du.edu>, <edh.772904399@hpuerca>, <hamilton.773032986@BIX.com>news.d
- Subject : Re: Temp. Conversion Chart: F & C?
-
- hamilton@BIX.com (hamilton on BIX) writes:
-
- >While we're on the topic of conversions, can someone help me
- >out with some others that have been really boggling me?
-
- > MHz to KHz
- > Feet to Inches
- > Dollars to Cents
-
- >Also, what is that stuff that collects in your belly button
- >called?
-
- While we're on the subject, how about:
-
- MHz to Megacycles
- Feet to Hands
- Dollars to Sense
-
- And that stuff in your belly button - please send it to me. I'm
- making a sweater.
-
-
- By the way, there is a program on most unix systems called "units"
- that will convert from one thing to another. I don't know what it
- will do to belly-button lint, though.
- --
- Dave Bushong, Wang Laboratories, Inc.
-
- ------------------------------
-
- End of Info-Hams Digest V94 #731
- ******************************
-