home *** CD-ROM | disk | FTP | other *** search
- Date: Wed, 15 Dec 93 11:13:15 PST
- 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 V93 #1466
- To: Info-Hams
-
-
- Info-Hams Digest Wed, 15 Dec 93 Volume 93 : Issue 1466
-
- Today's Topics:
- [Frequencies in use: a FAQ?]
- Amateur Radio Newsline #852 10 DEC 93
- how to scare away birds from my antenna
- Info sought on QUANTUM batt. packs
- Kenwood TR-7850 2m gear
- Need info on amateur ham radio in UK.....
- Precision resistors questions
- Radio in Alaska
- TVI weirdness
-
- 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: 14 Dec 1993 10:30:47 -0600
- From: sdd.hp.com!vixen.cso.uiuc.edu!howland.reston.ans.net!cs.utexas.edu!bcm!TAMUTS.TAMU.EDU!news.utdallas.edu!corpgate!crchh327.bnr.ca!kharker@network.ucsd.edu
- Subject: [Frequencies in use: a FAQ?]
- To: info-hams@ucsd.edu
-
- In article <2ej695INNhbt@dns1.NMSU.Edu>, gereiswi@nmsu.edu (George S. Reiswig) writes:
- |> I hope this isn't a stupid FAQ, but I would really like to get
- |> some information: How can I get lists of 2m/70cm frequencies used in
- |> certain geographical areas, along with repeater offsets and access tones?
- |> It would also be nice to know police, etc., frequencies.
- |> I'd REALLY appreciate any suggestions. The only references I
- |> found (at Radical Shack) didn't have offsets or anything. I am
- |> particularly interested in the New Mexico/Colorado area.
- |> Thanks in advance for the help!
- |>
- The really authoritative collection of amateur VHF/UHF frequency use is the
- _ARRL Repeater Guide_ (or maybe it's the _ARRL Repeater Directory_? Anyway, my
- copy is at home...) This will list all the voice repeaters and a good chunk of
- the packet nodes and beacons for most of North America. It is $6 and can be
- found at any amateur radio store or mail order firm.
- For police freqs, the _Police Call_ series of books (available at Radio
- Shack) is probably the best I have seen. There are editions for different
- states/regions, so you should be able to find one for New Mexico/Colorado.
- If you are interested in satellite reception, then you are getting into an
- area where I have not yet been able to play. I am sure someone on the net can
- provide a good source for satellite downlink/uplink freqs.
- As for offsets, at least with amateur radio repeaters, you do not need to
- know the transmit offsets if you are just interested in listening. If indeed
- you are a licensed radio amateur (I didn't see a call sign, which is why I am
- saying this) then the _ARRL Repeater Guide_ lists the transmit offsets for each
- repeater in the directory. Access tones (for things like autopatches) are
- generally only distributed, for example, to members of the club that has put the
- repeater in operation. Often, the clubs require an extra annual fee of something
- like $5 for access to their autopatch. So, if you are interested in that sort of
- thing, then you're best bet is to get involved with your local amateur radio
- club (which is a good idea anyway :-)
- Hope this helps.
-
- --
- ======================================================================
- Kenneth E. Harker BNR "Any opinions expressed
- kharker@bnr.ca Richardson, Texas, USA are solely mine and do
- N1PVB (214) 684-5115 not represent BNR"
- ======================================================================
-
- ------------------------------
-
- Date: Sun, 12 Dec 1993 23:01:07 MST
- From: haven.umd.edu!news.umbc.edu!europa.eng.gtefsd.com!avdms8.msfc.nasa.gov!sol.ctr.columbia.edu!destroyer!nntp.cs.ubc.ca!alberta!nebulus!ve6mgs!usenet@ames.arpa
- Subject: Amateur Radio Newsline #852 10 DEC 93
- To: info-hams@ucsd.edu
-
- The electronic publication of the Amateur Radio Newsline is distributed
- with the permission of Bill Pasternak, WA6ITF, President and Editor of
- Newsline. The text is transcribed from the audio service by Dale Cary and
- is first published on Genie.
-
- Editorial comment or news items should be E-mailed to 3241437@mcimail.com
- or B.PASTERNAK@genie.geis.com. Voice or FAX to +1 805-296-7180.
-
- All other information and disclaimers are in the text header below.
-
- - - - - -
-
- NEWSLINE RADIO - CBBS EDITION #102 - POSTED 12/10/93
-
- *****************************************************************
- * *
- * * * ***** * * **** * ***** * * ***** *
- * ** * * * * * * * ** * * *
- * * * * *** * ** * *** * * * * * *** *
- * * ** * * ** * * * * * ** * *
- * * * ***** * * **** ***** ***** * * ***** *
- * *
- * **** * **** ***** *** *
- * * * * * * * * * * *
- * **** ***** * * * * * *
- * * * * * * * * * * *
- * * * * * **** ***** *** *
- * *
- *****************************************************************
-
- The following is late news about Amateur Radio for Radio
- Amateurs as prepared from NEWSLINE RADIO scripts by the staff of
- the AMATEUR RADIO NEWSLINE, INC. -- formerly the WESTLINK RADIO
- NETWORK. The electronic version of newsline is posted on this
- CBBS twice monthly. For current information updates, please call
-
- Los Angeles............................ (213) 462-0008
- Los Angeles (Instant Update Line)...... (805) 296-2407
- Seattle................................ (206) 368-3969
- Seattle................................ (206) 281-8455
- Tacoma................................. (206) 927-7373
- Louisville............................. (502) 894-8559
- Dayton................................. (513) 275-9991
- Chicago................................ (708) 289-0423
- New York City.......................... (718) 353-2801
- Melbourne, FL.......................... (407) 259-4479
-
- For the latest breaking info call the Instant Update Line listed
- above. To provide information please call (805) 296-7180. This
- line answers automatically and will accept up to 30 minutes of
- material.
-
- Check with your local amateur radio club to see if NEWSLINE
- can be heard weekly on the air in your area.
-
- Articles may be reproduced if printed in their entirety and
- credit is given to AMATEUR RADIO NEWSLINE as being the source.
-
- For further information about the AMATEUR RADIO NEWSLINE,
- please write to us with an SASE at P.O. Box 463, Pasadena, CA
- 91102.
-
- Thank You
- NEWSLINE
-
- *****************************************************************
-
- Some of the hams of NEWSLINE RADIO...
-
- WA6ITF WB6MQV WB6FDF K6DUE W6RCL N6AHU N6AWE N6TCQ K6PGX N6PNY
- KU8R N8DTN W9JUV KC9RP K9XI KB5KCH KC5UD KC0HF G8AUU WD0AKO DJ0QN
- and many others in the United States and around the globe!!!
-
- *****************************************************************
-
- [852]
-
- * * * * C L O S E D C I R C U I T A D V I S O R Y * * * *
- * *
- * The following is a closed circuit advisory and is NOT *
- * for air on amateur radio. Repeat, not for broadcast. This *
- * is just a reminder that the address for the Newsline Support *
- * Fund is Newsline, in care of Dr. Norm Chalfin, K6PGX, Post *
- * Office Box 463, Pasadena, CA 91102. Again, and as always, *
- * we thank you. That ends the closed circuit with Newsline *
- * report number 852 for release on Friday, December 10, 1993. *
- * *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * *
- * The following is a QST *
- * *
- * Ham radio leads seventeen Cuban exiles to freedom in the *
- * United States and a New York suburb says it has the same *
- * power as the FCC. Hempstead New York has ordered a ham to *
- * take down his antenna because of TVI. These stories and *
- * more on Newsline report number 852 coming your way. *
- * *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
- CUBAN HAM RADIO ESCAPE
-
- Ramon Batista, CO8BA, and sixteen other Cuban exiles are now
- free of dictator Fidel Castro thanks to the efforts of the
- Florida based Sociedad Internacional de Radio Aficionados --
- SIRA. The story of Batista's escape began several weeks ago when
- he started to hold discrete contacts with stateside SIRA members.
- During these short QSO's he indicated his plans and requested
- information on frequencies used by maritime services. SIRA's
- President, Rafael Estevez, WA4ZZG picks up the story from here.
-
- "He left on the Monday morning, early morning hours of that
- particular Monday. It was a row boat, there were two row boats,
- 14 feet each one. Two of those carrying 17 persons including one
- five year old girl. They rowed and when they thought they were
- far away from Cuba, ten international miles, actually they were
- about twenty to twenty two miles more or less. Then he prepared
- a small amateur radio rig with ten watts and a special antenna
- that he designed. With that antenna he called CQ, SOS, Mayday
- whatever you call in Spanish. Then Edilberto Salas, WA2HNO who
- was living down here in south Florida picked up the signals and
- he called the Coast Guard. Then the Coast Guard got into
- communications on that particular frequency. He finally was
- picked up by a Panamanian freighter who was advised by the Coast
- Guard to pick them up. Those two boats and they were taken to
- Jacksonville. In Jacksonville they were processed there then the
- day before Thanksgiving Day. Last Friday he arrived here in
- Miami. He is now today in the process to ask for political
- asylum."
-
- Batista's heroic escape from Cuba is only part of the story.
- When he arrived, he brought with him some bad news about the fate
- of many radio amateurs still in Cuba. That story, next week.
-
- *****
- LOS ANGELES TEST IRREGULARITIES
-
- The FCC has ordered the suspension of the accreditation of
- several Volunteer Examiners and has also invalidated the amateur
- licenses and license upgrades of twenty-one people. This, after
- a three month joint investigation of alleged irregularities at
- four VE administered test sessions here in Southern California.
- The tests in question occurred in the Los Angeles area in June
- and August of 1993 and involved both the ARRL and W5YI VEC's.
- As we go to air, the ARRL VEC says that it has, at the
- request of the government, suspended the right to test of four
- Volunteer Examiners. It has also unilaterally suspended the
- accreditation of another three VE's involved in another test
- session after finding other alleged irregularities in the records
- of the examinations administered at that test.
- Neither the FCC nor the VEC's assisting in the investigation
- have released the names of the testing applicants or the
- Volunteer Examiners under scrutiny, but the FCC has publicly
- thanked the ARRL and W5YI VEC's for their assistance in the
- continuing investigation.
- The FCC has stopped short of calling this a case of all-out
- license testing fraud, but Washington sources have indicated to
- Newsline that the results of the investigation may be turned over
- to the Department of Justice for further inquiry. Should the
- Justice Department find that fraud is indicated and if it seeks
- seeks prosecution, a lot of want to be hams and those who tested
- them could face an unexpected fines and imprisonment.
- More on this breaking story next week.
-
- *****
- LONG ISLAND ANTENNA DEFENSE FUND
-
- Amateur radio operators out on New York's Long Island are
- seeking national support to fight the local zoning board within
- the Town of Hempstead. On October 6th the Zoning Board of
- Appeals denied amateur radio operator Mark Nadel, NK2T the right
- to maintain his 55 foot radio tower. The reason for the denial
- was based on two neighbors had filed complaints about radio
- frequency interference to their home entertainment equipment. In
- other words, the town of Hempstead is saying that it is taking on
- the jurisdiction of the FCC and the townships lawyers add that
- they have the right to do just that. This, even if it means
- openly challenging the federal government and its communications
- control agency, the FCC.
- The decision against Nadel is precedent setting and reads in
- part as follows. We quote:
-
- "The board finds that the proposed and existing height of 55'
- has had a devastating effect on several of the residents. The
- transmission of applicants come over the telephone, television
- and electronic equipment of the neighbors and interfere
- substantially with those neighbors use of such facilities. The
- Board has weighed the benefit to the applicant as against the
- detriment to the neighbors, and finds that the detriment far
- outweighs any benefit to the applicant." -- end quote.
-
- Word is that Hempstead is prepared to spend any amount of
- money to argue this case in all jurisdictions including the
- United States Supreme Court. As a result, it now appears as if
- the only way that Nadel can have this decision overturned is to
- take it to court himself. He and other hams in Hempstead have
- been given no other choice than to fight.
- In order to help NK2T overcome this unacceptable decision an
- organization has been formed know as RADIO. This is an acronym
- for the Radio Amateur Defense & Information Organization. Its
- sole purpose is that of helping amateur radio operators in their
- fights with town zoning problems. Regardless of the final
- outcome, this will be a precedent setting case. Perhaps the most
- important legal battle in the history of the United States
- Amateur Radio Service.
- For this reason it is very important to support NK2T in this
- oncoming battle through the courts. The findings may well
- determine weather or not you can have a ham transmitter and an
- antenna, no matter where in the nation you may live.
- The address for contributions is RADIO, in care of N2FF,
- Post Office Box 343, Williston Park, New York 11596.
-
- *****
- NOVICE PRIVILEGES AND NEW 222 MHZ RESTRICTIONS ON REPEATERS
-
- The FCC has acted to expand privileges for Novice class
- licensees on the 222 MHz band as well as to create a subband
- protected for weak signal operators using the band. The changes
- enacted under the Report Order in PR Docket 92-289 are very wide
- in their scope and include allowing Novice operation in the
- entire 222-225 MHz band.
- Novices currently have access to 222.10-223.91 MHz. In making
- the privilege expansion proposal the American Radio Relay League
- said that improving the scope of Novice privileges to include the
- entire 1.25 meter band made sense. This because Novices already
- are permitted to use SSB and CW on portions of the HF bands.
- But the FCC has denied another proposal to allow Novices to
- be licensees and control operators of repeaters on both the 222
- and 1240 MHz bands. The Commission had in fact proposed such
- privileges in an Notice of Proposed Rule Making back in 1992. At
- that time the ARRL argued against the idea. It said that these
- privileges were not justified by the level technical proficiency
- demonstrated by Novices on their examinations. The ARRL also
- argued that giving Novices the right to hold license to repeaters
- would blur the distinctions between the Novice and Technician
- class licenses.
- Finally, the ARRL and weak-signal advocates have been
- successful in gaining a special subband established on the low
- end of the 222 MHz band. The League had proposed that a weak
- signal protected band segment be established from 222.0 to 222.15
- MHz, similar to what previously existed at 222.00 to 222.50 MHz.
- They said that a weak-signal subband, which could not be enforced
- through voluntary agreements or formalized band-planning by
- amateurs, was necessary to allow amateurs to carry on experiments
- in propagation and operating techniques.
- The FCC agreed that this proposal had merit and acted to
- codify it but in reality their action may have come to late. In
- some cities, so called un-coordinated "pirate" repeaters are
- already setting up operations in this spectrum. This, as it is
- vacated by coordinated systems that have been relocated elsewhere
- in the 1.25 meter band. While the number of these uncoordinated
- systems is still small it will be a problem that the FCC rather
- than the Amateur Radio community will have to handle. This is
- because those hams who have no respect for "gentlemen agreements"
- on band utilization are bound to ignore the FCC regulations as
- well.
- At airtime, no effective date for these new regulations to
- take effect has been announced.
-
- *****
- NEW YORK CABS GET CELLULAR TELEPHONES
-
- The alleged need for two meter radios in New York City taxis
- seems to have disappeared as a results of a plan to install
- cellular phones in may of the city's cabs. According to a press
- release from Nynex, Mobile Communications, one of the city's
- cellular suppliers, some two hundred medallion taxi cabs have
- embarked on a three month pilot program to test the feasibility
- of having cellular pay-phones in the rider compartments of these
- vehicles. Passengers are able to use these cel-tels for regular
- phone calls, and taxi drivers have a special push-button that
- allows instant access to police through the city's 911 emergency
- access number.
- As reported a few months ago, a small number of New York City
- taxi drivers had petitioned the Taxi and Limousine Commission to
- have two meter radios installed in every cab. The commission
- turned the drivers down. The new Nynex system seems to nullify
- the need for two meter radios to be installed in the city's cabs,
- while giving the drivers a better sense of security than any ham
- system could offer.
-
- *****
- CHINA ON THE HAM SATELLITES
-
- In news about ham radio space operations, word that the
- Tsinghua University Amateur Radio Club of Beijing, China has
- announced that the Chinese Radio Sports Association has provided
- them with some OSCAR satellite ground station equipment. The
- Radio Club says that it plans to use the gear for approximately 6
- months in an effort to become active on amateur satellites.
- The equipment consists of a Yaesu FT-726 dual-band
- transceiver, a circularly polarized crossed Yagi antenna, a 70cm
- amplifier, a receive preamplifier, and the elevation/azimuth
- rotor system. OE2CAL, an Austrian amateur noted in Europe for
- his VHF and UHF activities, and DJ7BU are scheduled to join the
- radio club in their efforts to the antenna system which has been
- delayed due to snowy weather. Both men are currently working in
- Beijing.
-
- *****
- ST LOUIS RADIO HISTORY
-
- Closer to home comes this item from the world of broadcast
- band DXing. Word that a piece of radio history has returned to
- the radio dial in St. Louis. E.B. Stevenson, N0UIH has the
- story and the background on why it all came about.
-
- "The first weekend in October brought a major shock to
- listeners of St. Louis radio station KUSA. Listeners expecting
- to hear the station at 550 on the AM dial with its CNN Headline
- News feed, instead were informed they were listening to KSD AM.
- The reversion to the KSD callsign was as a result of sale of the
- station along with classic rock formatted KSD FM 93.7 Mhz by
- Gannet Radio Division to EZ Communications, owners of KYKY 98.1
- Mhz with runs an adult top 40 format. Gannet purchased KSD AM
- then the local NBC Radio Network Affiliate and what was then
- beautiful music formatted KCFM in 1979. The FM adopted the KSD
- FM callsign in 1980, the same year KSD AM ended its 54 year
- affiliation with NBC. The KSD calls were dropped from the AM on
- March 19th 1984 after being on the 550 spot since 1922. KUSA was
- originally going to be adopted by what was then KPRZ in Los
- Angeles, now KIIS 1150 on the AM dial earlier in 1984, but
- Gannet ended up transferring the calls to their St. Louis AM
- property which was then running the country and western music
- format. The KUSA call still reside on its television property in
- Denver, Colorado. A piece of St. Louis radio history is back."
-
- Confusing yes, but talk about radio history repeating itself.
-
- *****
- XMAS TV
-
- The television program titled There Really Is A Santa Claus
- will air on Saturday December 11th on the Discovery Channel cable
- television network. There Really is a Santa Claus includes
- exclusive footage of the North Pole Network that each year
- permits hospital confined children to talk directly to old St.
- Nick thru the magic of ham radio an amateur radio TV. The
- segment showing hams in action was filmed at the St. Judes
- Hospital Center in Fullerton, California and shows Rehab Radio
- Station WD6BPT in action. Look for There Really is a Santa Claus
- at 4 PM eastern and pacific. Consult your local cable company
- about finding the Discovery Channel on your cable box or TV dial.
-
- *****
- COUNTRY MUSIC HAM
-
- You fans of country music know that entertainer Patty
- Loveless produces chart-topping hits. But now it can also now be
- told that Patty can also hold her own in a morse-code roundtable
- QSO. This is according to QST Magazine that reports the Kentucky
- born songstress is now the holder of the Amateur Radio call sign
- KD4WUJ.
- QST says that Patty, a cousin of singer Loretta Lynn is
- is married to Emory Gordy Jr., W4WRO and it was Gordy that got
- his wife interested in the two way hobby communications. The
- Gordy's make their home in Dallas Georgia where Patty is
- reportedly active on 40 meter CW.
- Newsline knows that you join in welcoming Patty Loveless
- KD4WUJ to our world of Amateur Radio.
-
- *****
-
- * * * Newsline Copyright 1993 all rights are reserved. * * *
- ------------
-
- ------------------------------
-
- Date: 15 Dec 93 16:01:33 GMT
- From: news-mail-gateway@ucsd.edu
- Subject: how to scare away birds from my antenna
- To: info-hams@ucsd.edu
-
- I'm thinking of scaring away birds from my antenna
- using ultrasound. I ever heard about people doing it,
- but don't know what frequency to use, or which
- output power.
-
- Does anybody have experiance with this?
-
- Gerrit, PA3BYA.
- g.polder@cpro.agro.nl
-
- ------------------------------
-
- Date: Mon, 13 Dec 1993 11:03:36 GMT
- From: agate!library.ucla.edu!csulb.edu!csus.edu!netcom.com!feustel@ames.arpa
- Subject: Info sought on QUANTUM batt. packs
- To: info-hams@ucsd.edu
-
- I've had a Quantum battery for about 2 years. I use it with my W2A and
- it's worked fine.
- --
- Dave Feustel N9MYI <feustel@netcom.com>
-
- I DON'T CARE about the deficit OR the national Debt;
- *I* don't have any kids.
-
- ------------------------------
-
- Date: Tue, 14 Dec 1993 16:25:22 GMT
- From: sdd.hp.com!col.hp.com!news.dtc.hp.com!hplextra!hplntx!bob@network.ucsd.edu
- Subject: Kenwood TR-7850 2m gear
- To: info-hams@ucsd.edu
-
- Bob Piety (bob@hplrap1.hpl.hp.com) wrote:
- : I have two Kenwood TR-7850 2m transceivers for sale. These are
- : synthesized and output more than 40 Watts (Hi) or about 10W (Lo).
- : Both are in perfect condition, in original boxes with all
- : manuals/accessories. I'm asking $195 each or $375 for both.
-
-
- Both have been sold. Thanks for your interest.
-
- 73's,
- KG6HV
- *****************************************************************************
- * Bob *
- * piety@hpl.hp.com Voice: (415)857-4759 FAX: (415)857-2862 *
- * Hewlett Packard 3500 Deer Creek Rd. Palo Alto, Ca. 94303-0867 MS 26U16 *
- *****************************************************************************
-
- ------------------------------
-
- Date: Sat, 11 Dec 1993 13:57:15 +0000
- From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!europa.eng.gtefsd.com!library.ucla.edu!agate!doc.ic.ac.uk!uknet!demon!llondel.demon.co.uk!dave@network.ucsd.edu
- Subject: Need info on amateur ham radio in UK.....
- To: info-hams@ucsd.edu
-
- In article <2eahj4$l7k@canopus.cc.umanitoba.ca> umhaugh0@ccu.umanitoba.ca (Bruce A. Haugh) writes:
- >
- >I figure sometime next year or so I will be moving to the UK
- >and I thought that picking up a ham-radio licence would be an
- >intersting way to keep in contact with some of my friends in
- >Canada. I am not aware of the difference in the "rules" of
- >amateur ham radio operation in the UK and was hoping someone
- >could fill me in.
- >Particularly I'd like to know if I got my licence in Canada
- >would it be void in the UK? What frequencies do they use
- >over there? For example, if I bought a dual band radio here
- >would it work over there or would I have to purchase one in
- >the UK?
- >
- You can exist for a few months on a reciprocal licence but you will eventually
- have to take out a full UK licence. I am not sure if you can do so on the
- strength of your existing licence or whether you will have to sit the UK
- exams (not hard... multi-guess exam + 12wpm CW)
-
- As far as bands go, some of our bands are narrower (2M is 144-146) and some
- don't exist over here, although we do get a 4M band as an extra. For VHF/UHF
- operation you need to be aware that the UK 70cm band is 430-440, repeater
- spacing of 1.6MHz (inputs high) with toneburst access (1750Hz), although some
- CTCSS operation is appearing. 2M repeaters have a 600kHz spacing, again with
- toneburst access. We also use 25kHz channels on 2M/70cms so try to get a rig
- which can handle this. I would recommend you buy a rig before you get here
- because the prices here tend to be quite a bit higher.
-
- Dave
- --
-
- *****************************************************************************
- * G4WRW @ GB7WRW.#41.GBR.EU AX25 * Start at the beginning. Go on *
- * dave@llondel.demon.co.uk Internet * until the end. Then stop. *
- * g4wrw@g4wrw.ampr.org Amprnet * (the king to the white rabbit) *
- *****************************************************************************
-
- ------------------------------
-
- Date: Sat, 11 Dec 1993 21:14:20 GMT
- From: news.Hawaii.Edu!uhunix3.uhcc.Hawaii.Edu!jherman@ames.arpa
- Subject: Precision resistors questions
- To: info-hams@ucsd.edu
-
- I have questions concerning the following two precision resistors:
-
- 1. Shallcross Akra-ohm wirewound type BX-100-J RB21B 13001F ABS
-
- Is the resistance 13000 ohms? (1300 * 10^1 is how I interpret 13001)
- What is the tolerance?
-
- 2. Resistance Products Company LFB RB15AK 1R669F
-
- Is the resistance 1.669 ohms?
- What is the tolerance?
-
- I'm posting this for a engineer friend - I've never had reason to work
- with these type of resistors.
-
- Thanks so much!
-
- Jeff NH6IL
-
- ------------------------------
-
- Date: Tue, 14 Dec 1993 16:09:10 GMT
- From: sdd.hp.com!usc!howland.reston.ans.net!vixen.cso.uiuc.edu!milo.mcs.anl.gov!anagram.mcs.anl.gov!lent@network.ucsd.edu
- Subject: Radio in Alaska
- To: info-hams@ucsd.edu
-
- I am posting this for a friend.
- He will be taking a trip this summer in the Brooks Range, North Face
- region of Alaska. Probably a mixture of backpacking and kyaking.
- He asked me about what kind of radios would be useful out there. They
- would be used primarily for emergency communication and linking with
- their pilots. Could anyone recommend radios, modes and frequencies
- for this? Would marine UHF radios be useful, ham frequencies?
- If you have any experience or knowledge or could point me in the direction
- of such, please email me at lent@mcs.anl.gov
- 73
- KC4ZQG
-
- ----------------
- `I've always thought that, before anything else, people should learn
- to love life in this world.'
- `To love life more than the meaning of life?'
- `Yes, that's right. That's the way it should be - love should come before
- logic, just as you said. Only then will man be able to understand the
- meaning of life.'
- -Brothers Karamazov
-
- ------------------------------
-
- Date: Mon, 13 Dec 1993 19:52:21 GMT
- From: library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!vixen.cso.uiuc.edu!sdd.hp.com!col.hp.com!srgenprp!alanb@network.ucsd.edu
- Subject: TVI weirdness
- To: info-hams@ucsd.edu
-
- sohl,william h (whs70@dancer.cc.bellcore.com) wrote:
- : In article <tjf-131293071948@mamie.lanl.gov>,
- : Thomas J. Farish <tjf@beta.lanl.gov> wrote:
- : >The Cable TVI saga continues. I posted a few months ago about my
- : >neighbor's complaints about interference with his TV (his house is
- : >wired for cable TV in every room).
-
- : RED FLAG...RED FLAG...
-
- : Exactly HOW is the house wired for cable in every room? If the
- : house cable wiring uses one or more of the typical 75ohm cable
- : spitters and then has the cable termninated to a wall jack in
- : each room, then each of the wall jacks that do NOT have a TV
- : plugged into it SHOULD then have a dummy 50ohm terminating plug
- : pluged in. If that's not the case, then each of the unterminated
- : wall plug appearances can serve as a point of leakage either into
- : or from the neighbors TV house wiring.
-
- There are good reasons for terminating unused cables (e.g. ghosting due
- to reflections), but I don't think RFI is one of them. The amount of
- RF leaking into the tiny connector opening would be close to nil.
- Cable TVI is usually due to common-mode currents on the coax or
- leakage into the coax due to poor cable connections (bad connector
- crimps, corroded shields, etc.)
-
- AL N1AL
-
- ------------------------------
-
- End of Info-Hams Digest V93 #1466
- ******************************
- ******************************
-