Date: Mon, 3 Jan 94 00:33:08 PST
From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
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Subject: Info-Hams Digest V93 #1536
To: Info-Hams
Info-Hams Digest Mon, 3 Jan 94 Volume 93 : Issue 1536
Today's Topics:
Amateur Radio Newsline #855 31 Dec 93
Daily Summary of Solar Geophysical Activity for 02 January
Strange Antenna
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: Sun, 02 Jan 1994 23:38:36 EST
From: library.ucla.edu!news.mic.ucla.edu!unixg.ubc.ca!nntp.cs.ubc.ca!alberta!nebulus!ve6mgs!usenet@network.ucsd.edu
Subject: Amateur Radio Newsline #855 31 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 #105 - POSTED 01/01/94
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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!!!
*****************************************************************
[855]
* * * * 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. 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, California 91102. Again, and as always, we thank *
* you. That ends the closed circuit with Newsline report 855 *
* for release on New Years Eve, Friday, December 31, 1993. *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* *
* The following is a QST *
* *
* New Jersey says it wants to tax every radio transmitter *
* in the state and some hams may try to grab 10 1/2 meters *
* from the freebanders. *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
NEW JERSEY RF FEE
New Jersey, the state that two years ago tried to jail hams
who had rigs in their cars and more recently tried to force Radio
Shack to stop selling scanners with cellular coverage now wants
to put a tax on every radio transmitter in the state! The New
Jersey Department of Environmental Protection and Energy is
proposing a fee on owners of almost all RF generating device.
Transmitters that are both commercially and privately owned.
The proposed rule will require the owners of any source of
radio frequency and microwave radiation between the frequencies
of 300 KHz and 100 GHz and which have the potential of exposing
either workers or the general public to radiation levels in
excess of the regulatory limits to register those sources with
the Department within 60 calendar days after the effective date
of this rule. The owners of all units that are subject to this
rule shall be assessed an initial registration fee and will be
required to provide technical information on each piece of
equipment to the Department. After the first year of the
program, the owners of registered units will be assessed an
annual renewal fee. The amounts of the proposed fee are based on
the services to be performed by the Department. As a reference,
the median fee for commercial users will be approximately $500
per antenna per year if this proposal is passed.
Radio frequency sources definitely falling under the proposed
legislation include AM and FM radio stations, television
stations, commercial microwave ovens, cellular telephone systems,
radar installations, microwave point-to-point links,
ground-to-satellite telecommunications links, and other
communications services. Radio frequency and microwave sources
are also widely used in industrial heating and sealing operations
and will be included as well. Although fees are not yet outlined
for Amateur Stations, ham radio is mentioned in several sections
of the proposal as being a significant source of radio frequency
radiation. A source that the state says poses health risks to
the general public.
A hearing to discuss the rule will be held on January 11th in
the Department's Public Hearing Room in Trenton, New Jersey. The
Department will accept comments on the proposed regulations until
January 20th. Comments should be addressed to Janis E. Hoagland,
Esq., Administrative Practice Officer, New Jersey Department of
Environmental Protection and Energy, Office of Legal Affairs, C N
402, Trenton, New Jersey, 08625-0402.
Those outside New Jersey aren't out of the clear on this
issue. If this proposal passes into law, it could be
justification for other states to take similar action. It might
even lead to a national ruling on radio frequency radiation that
could seriously damage the ability of Amateur Radio to fulfill
the basis and purpose that it was created to serve. Newsline
will keep you updated on this one.
*****
TAKE BACK 11 METERS
If you are not on packet then you may not be aware that a
growing number hams around the nation are sounding a call to
arms. A call with the aim of taking part 11 meters back from
Citizens Radio and turning it over to Novice and no-code
Technician class hams.
No, its not a joke. In fact, those involved seem very serious
and are looking to do it the right way. The political way by
petitioning the FCC to make the change.
The debate on this issue started a few weeks ago on packet
when Tom Saluti, N1KIO of New Durham New Hampshire posted an All
United States bulletin dealing with the subject. If you are
active on packet then you are aware of the high level of support
that Tom's idea has. For those of you who are not packeteers,
heres the story.
In his posting, N1KIO called the 11 meter band -- more
accurately the 10 1/2 meter Freeband as being -- and we quote --
a wasteland that even the government can't use. This Tom says is
because operators have taken it over from 26.000 to 28.000 MHz
and sometimes even make excursions into the 10 meter ham band.
He went on to note that with the FCC having taken away some
frequencies from Amateur Radio that it might be time for them to
give some spectrum back. This by abandoning their own efforts to
handle the 10 1/2 meter problem and turn 27.500 to 28.000 over to
the Amateur Radio service. He says that radio amateurs can
easily solve the mess by permitting Novices and Techs to run CW
and data from 27.500 to 27.700 and voice operation from 27.700 to
28.000 MHz.
Since its posting, the N1KIO bulletin has been highly
controversial. Not over the idea of running the illegal
operators off of 11 meters and getting it reassigned as a ham
radio band. Almost every commenter wants to see that happen.
The problem seems to be on how to do it.
Many hams appear have a high level animosity toward the
Freeband illegals but a number question how to get the FCC to
take the request seriously. One responses gaining a lot of
support suggests that a petition be circulated by packet radio
where signatures and call signs could be added. Then, after a
few months a final print out can be sent to the Private Radio
Bureau as a rule making request.
No matter what the outcome of the discussion going on packet,
one thing is certain. A fire is being fanned by a desire of
no-code hams to have access to the high frequency bands. It is
growing, and the illegal operators on 10 1/2 meters may soon
find hot cinders falling in their self proclaimed Freeband as
radio amateurs take a political route to oust the current crop of
illegal operators and open 10 1/2 meters to ham radio. Stay
tuned.
*****
PARAMOUNT FINED
Much of the FCC's staff is away on vacation, so there is
nothing new in the case of alleged violations of Amateur Radio
testing rules by a number of Southern California Volunteer
Examiners. But before the commission went into recess, it did
levi a big fine against a Houston, Texas television station.
The Federal Communications Commission has fined Paramount
Communications television station KTXH-TV in Houston, Texas
$80,000 for violating a law limiting the number of commercials a
TV station may air during children's programming hours.
The fine represents the largest punishment ever handed out to
a TV station since Congress passed a 1990 law requiring
broadcasters to meet the educational needs of children. An
appeal by Paramount is expected.
*****
RADIATION PROOF IC's NEEDED
Keith Baker, KB1SF of AMSAT North America says that the Phase
3D satellite development team has identified an urgent need for
some radiation hardened, low power CMOS type 1802 microprocessor
chips. These are not the standard off the shelf variety of
1802's, but rather the type that have been certified for
operation in a spacecraft environment. If any of our listeners
has source or pricing information on these components, please
drop a note to Dick Jansson WD4FAB at his callbook address or
fax him at 407-644-9782. These IC's are needed to make the new
Phase 3D satellite fly!
*****
NO 222 - 222.150 MHZ LISTINGS
When the next issue of the ARRL's Repeater Directory premieres
in April, there will be no listings of repeaters that may still
be operating between 222 and 222.150 MHz. Newsline has learned
that the decision to drop the listing of repeaters operating in
that 150 Khz window is based on a recent FCC rules change. A
change that reserves that spectrum for weak signal operations by
barring any and all relay operation from it.
Once implemented, any repeater or remote base venturing into
the band between 222 and 222.150 MHz will be in violation of the
FCC rules. The operators of such systems will be subject to
severe penalties if they are caught. Apparently the ARRL does
not to be viewed as fostering pirate repeater operations. The
decision to drop these systems from public listing seems to be
its way to make this position known.
*****
THIS WEEK IN AMATEUR RADIO RETURNS
A satellite delivered ham radio program is returning to the
air after being homeless for just over a month. Producers of
"This Week in Amateur Radio" say they're back, but on a different
satellite.
Community Video Associates, which produces the program, says
it has reached an agreement to get the show back on the air
starting January 1st. This Week In Amateur Radio began airing in
March. It lasted till late November when the program lost its
satellite air time. George Bowen, N2LQS is the CVA's President.
He says the program will air on the Galaxy III satellite under an
agreement with the new Omega Radio Network. Air times will be
Saturday at 7:30pm EST. Bowen says the network is donating the
satellite time as a service to the amateur radio community. This
Week In Amateur Radio carries a variety of ham programing
including Amateur Radio Newsline. The show is free and available
for rebroadcast on local amateur radio repeaters.
If you'd like to listen to This Week in Amateur Radio, here's
more information on the Galaxy III satellite. Tune in
transponder 19, 5.8 MHz wideband audio. Galaxy III is located at
93.5 degrees west longitude. Again, air times are Saturdays,
starting at 7:30 p.m., Eastern time. Welcome back!
*****
NEW RAIN DIAL UP SERVICE PHONE NUMBER
Chicago's popular Rain Dial Up Service has changed its
telephone number. As of Thursday December the 30th, the new
number is area code (708) 827-7246. The Rain dial up provides
repeaters and other bulletin stations with in depth reports on
subjects of contemporary interest to the ham community. Again
the new number is area code (708) 827-7246 or simply (708) 827-
RAIN.
*****
AMATEUR RADIO INDUSTRY GROUP TO HOLD FIRST MEETING OF '94
The Amateur Radio Industry Group will hold its first formal
planing meeting of 1994 on Friday evening, February 4, at the
Miami Airport Mariott Hotel, Miami, Florida in conjunction with
the 34th annual Tropical Hamboree. All manufacturers,
publishers, importers and dealers serving the ham radio
marketplace are invited to attend. The Meeting room number will
be posted in the hotel lobby and circulated among all exhibitors
at the Hamboree. Sorry, this meeting is not open to the general
public. For more information or to arrange to make a
presentation at the meeting please contact John Dorr, K1AR,
Chairman of the Amateur Radio Industry Group, at CQ
Communications, 76 North Broadway, Hicksville, New York 11801.
John can be reached by telephone at area code (516) 681-2922 or
you can Fax him at (516) 681-2926.
*****
CZECH OPERATION
In DX, word that a station signing OL1A and claiming to be
operating in the Czech Republic had been rumored to be a pirate.
Now comes word from W9GSB who says that's definitely not the
case. Lou reports that he has received a card for the operation.
OL1A turned out to be a special contest station operated by
OK1DFP and several others. If you also made the contact, QSL via
OK1DWX.
*****
DXCC UPDATE
The ARRL has announced that A61AF cards are acceptable for
DXCC credit, but only for QSO dates after August 3rd, 1993. The
League says that all operations prior to that date were
unauthorized, and not good for DXCC. If you were among the many
who submitted an A61AF card prior to November 16th, 1993 you are
going to have to resubmit. This is because all prior A61AF
credits have been removed from the League's DXCC database.
*****
ARRL RTTY CONTEST
A reminder that the annual ARRL RTTY Roundup takes place next
weekend from 18:00 UTC on January 8th to 24:00 UTC on January
the 9th. According to W1FB there were two date announcements
made for the contest. The official notice in QST listed the
correct date while the announcement in CQ Magazine that the
competition would be held New Years weekend was wrong.
*****
ORIGINAL MARCONI KITES DISCOVERED
Joe Chamberlin, VE3ABG reports via packet that some of the
original kites used in the early 1900's by radio pioneer
Guigliermo Marconi have been found. The kites were discovered
during a recent Marconi plant clean-up in Montreal. Plans are to
donate some of the kites to the Marconi Museum in St. John's,
Newfoundland. This is where early trans-Atlantic transmissions
took place from Signal Hill. VE3ABG also says that contrary to
rumors going around, the Marconi company officials do not plan on
offering them up for public auction.
*****
For this year, that's all from the Amateur Radio Newsline.
You can write to us at Post Office Box 463 in Pasadena, CA 91102.
From Bill Pasternak, WA6ITF at our editors desk, and all the
rest of the Newsline staff around the world, we wish you a great
1994.
* * * Newsline Copyright 1993 & 1994, all rights are reserved. * * *
------------------------------
Date: Sun, 2 Jan 1994 21:45:45 MST
From: library.ucla.edu!news.mic.ucla.edu!unixg.ubc.ca!nntp.cs.ubc.ca!alberta!nebulus!ve6mgs!usenet@network.ucsd.edu
Subject: Daily Summary of Solar Geophysical Activity for 02 January
To: info-hams@ucsd.edu
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
02 JANUARY, 1994
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
(Based In-Part On SESC Observational Data)
SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 02 JANUARY, 1994
-----------------------------------------------------------
NOTE: Intense stratospheric warming continues over central and northeastern
Siberia, Alaska, Northern Canada and the Siberian and Canadian Arctic.
Temperature gradient is reversed between 60N and the pole from 50 HPA
upwards into the upper stratosphere.
!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 002, 01/02/94
10.7 FLUX=146 90-AVG=100 SSN=094 BKI=1343 4312 BAI=014
BGND-XRAY=B6.0 FLU1=1.0E+06 FLU10=1.1E+04 PKI=2343 4332 PAI=016
BOU-DEV=008,025,045,030,062,021,007,013 DEV-AVG=026 NT SWF=01:015
XRAY-MAX= M6.5 @ 2256UT XRAY-MIN= B5.4 @ 1554UT XRAY-AVG= C1.2
NEUTN-MAX= +003% @ 0155UT NEUTN-MIN= -004% @ 0305UT NEUTN-AVG= +0.0%
PCA-MAX= +0.1DB @ 0920UT PCA-MIN= -0.8DB @ 0130UT PCA-AVG= -0.2DB
BOUTF-MAX=55350NT @ 0507UT BOUTF-MIN=55324NT @ 1852UT BOUTF-AVG=55338NT
GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+053,+000,+000
GOES6-MAX=P:+111NT@ 1835UT GOES6-MIN=N:-067NT@ 0726UT G6-AVG=+077,+028,-038
FLUXFCST=STD:140,135,130;SESC:140,135,130 BAI/PAI-FCST=010,005,005/012,008,008
KFCST=1223 4321 0123 4221 27DAY-AP=006,015 27DAY-KP=2112 2221 3112 5434
WARNINGS=*MAJFLR;*SWF
ALERTS=**MAJFLR:M6.5/SN@2256,N13E15(7645)
!!END-DATA!!
NOTE: The Effective Sunspot Number for 01 JAN 94 was 67.0.
The Full Kp Indices for 01 JAN 94 are: 3+ 3+ 4o 5+ 4o 3o 2- 2+
SYNOPSIS OF ACTIVITY
--------------------
Solar activity was low. Only a few C-class subflares
occurred. Regions 7645 (N12E18) and 7646 (S09E14), both about
600 millionths in area, have been stable. Little else of
significance was reported.
STD: A relatively insignificant major M6.5/SN flare erupted out
of Region 7645 at 02/2256Z. The flare was rather impulsive and
was not associated with any notable radio emissions.
Additional M-class flares are possible from this region, with
an outside chance for an isolated X-class event. It continues
to show a fairly complex magnetic structure. A delta
configuration is also still quite evident within the region.
Solar activity forecast: solar activity is expected to be
low.
The geomagnetic field was at quiet to active levels.
Geophysical activity forecast: the geomagnetic field is
expected to be quiet to unsettled throughout the period.
Event probabilities 03 jan-05 jan
Class M 25/25/25
Class X 01/01/01
Proton 01/01/01
PCAF Green
Geomagnetic activity probabilities 03 jan-05 jan
A. Middle Latitudes
Active 30/20/20
Minor Storm 10/10/10
Major-Severe Storm 01/01/01
B. High Latitudes
Active 20/20/20
Minor Storm 30/30/20
Major-Severe Storm 01/01/01
HF propagation conditions were normal over all regions.
Ionospheric strengthening is evident. Openings on 6 meters are
becoming increasingly possible over some middle and many lower
latitude regions. High latitudes are also observing somewhat
better propagation conditions, although some night-sector
signal instabilities are persisting. The major M6.5/SF flare
had only a minor ionospheric impact on daylit paths. The
short duration of the flare prevented a strong and lasting SWF.
Similar conditions are expected over all regions during the
next 3 days. Additional sudden ionospheric disturbances (SIDs)
are possible over the next week.
COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
========================================================
REGIONS WITH SUNSPOTS. LOCATIONS VALID AT 02/2400Z JANUARY
----------------------------------------------------------
NMBR LOCATION LO AREA Z LL NN MAG TYPE
7645 N12E18 082 0600 FKI 16 032 BETA-GAMMA-DELTA
7646 S09E14 086 0580 DKI 10 023 BETA
7647 S15E06 094 0120 DAO 07 009 BETA
REGIONS DUE TO RETURN 03 JANUARY TO 05 JANUARY
NONE
LISTING OF SOLAR ENERGETIC EVENTS FOR 02 JANUARY, 1994
------------------------------------------------------
BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP
0229 0236 0240 C1.5 360
1139 1149 1155 C1.1 110
2248 2256 2303 7645 N13E15 M6.5 SN 100
POSSIBLE CORONAL MASS EJECTION EVENTS FOR 02 JANUARY, 1994
----------------------------------------------------------
BEGIN MAX END LOCATION TYPE SIZE DUR II IV
NO EVENTS OBSERVED
INFERRED CORONAL HOLES. LOCATIONS VALID AT 02/2400Z
---------------------------------------------------
ISOLATED HOLES AND POLAR EXTENSIONS
EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
55 S10W73 S10W73 N20W83 N20W83 184 ISO POS 008 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
------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
01 Jan: 0016 0158 0208 C2.8
0120 0120 0123 SF 7640 N08W78
0156 0158 0202 SF 7640 N08W79
0157 0158 0216 SF 7646 S09E39
0323 0326 0329 C1.8 SF 7645 N13E35
0335 0341 0350 C2.4
0550 0555 0603 C2.0 SF 7640 N06W77
0557 0600 0606 SF 7646 S09E37
0750 0754 0758 C1.2
1219 1223 1226 C1.5 SF 7645 N10E36 51 94
1254 1259 1302 C1.6
1341 1348 1353 C1.7
1540 1609 1649 C2.0
1735 1745 1800 C4.4 SF 7647 S15E27
2311 2315 2319 C1.3 34 140 350
REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
------------------------------------------------
C M X S 1 2 3 4 Total (%)
-- -- -- -- -- -- -- -- --- ------
Region 7640: 1 0 0 3 0 0 0 0 003 (20.0)
Region 7645: 2 0 0 2 0 0 0 0 002 (13.3)
Region 7646: 0 0 0 2 0 0 0 0 002 (13.3)
Region 7647: 1 0 0 1 0 0 0 0 001 ( 6.7)
Uncorrellated: 7 0 0 0 0 0 0 0 007 (46.7)
Total Events: 015 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
------ ---- ---- ---- ---- -- ------ ------ ---------------------------
01 Jan: 2311 2315 2319 C1.3 III
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, 03 Jan 1994 05:08:29 GMT
From: swrinde!cs.utexas.edu!howland.reston.ans.net!usenet.ins.cwru.edu!neoucom.edu!wtm@network.ucsd.edu
Subject: Strange Antenna
To: info-hams@ucsd.edu
In article <2g83sh$8p2@agate.berkeley.edu> ep208@garnet.berkeley.edu (Charles Woodson) writes:
>The antenna looked like a loop about 3 cm in diameter, and there was
>a second loop the same size at 90 degrees to the first one.
That sounds like a cellular antenna to me. The last time I dropped
by my cellular carrier's office to pick up a quick charger for my
Moto hand-held unit, I noticed some antennae on display. One of
those was a very short stalk with two vertical loops perpendicular
to each other, passing though the axix of the stalk.
Tehre wasn't really anthing on the display that would suggest that
said antenna was any better than any of the others, just different.
In fact, it was not the most expensive on display. The most costly
was a hinged model that mounts on the trun lip. When not in use,
it could be folded out of sight under the trunk lid. It was pretty
large and looked more CB-like than cellular. Still, not a bad
idea.
--
Bill Mayhew NEOUCOM Computer Services Department
Rootstown, OH 44272-9995 USA phone: 216-325-2511
wtm@uhura.neoucom.edu amateur radio 146.58: N8WED
------------------------------
Date: 2 Jan 94 21:25:41 PDT
From: news.sprintlink.net!crash!cmkrnl!jeh@uunet.uu.net
To: info-hams@ucsd.edu
References <CIzLwp.7zJ@efn.org>, <2g7eua$epl@reznor.larc.nasa.gov>, <2g7p56$9s9@crl2.crl.com>
Subject : Re: why 29.94 fps?
In article <2g7p56$9s9@crl2.crl.com>, lreeves@crl.com (Les Reeves) writes:
> The colorburst frequency is not only cast in stone-it is extremely accurate.
> It is more accurate as a frequency reference than WWV. This is provided
> that you are tuned to a network-supplied program.
Is this still true?
I have no direct knowledge, but... many years ago (mid-70's if I remember
right) one of the hobby electronics mags (I think it was Radio-Electronics) had
an article for a frequency standard derived from a color tv. Soon afterward a
letter appeared in the letter column (where else :-), written by an engineer at
one of the better-equipped stations in L.A. He stated that even network-
supplied programs taken from a live feed usually go through a time-base
corrector at the local station, and that this breaks the "chain of
traceability" back to the network's precision frequency standard.
(of course, anything that the local taped from a satellite feed for broadcast
later is completely divorced from any standards at the network.)
Also, at that time it was stated that the networks used rubidium-clock
frequency standards, which are secondary standards: They're awfully good but
they still have to be calibrated against something better. NIST (the folks who
run WWV) uses cesium-beam clocks, which are primary standards, needing no
calibration for frequency. Have the networks since upgraded to cesium-beam
clocks? And, given that the local stations probably haven't, does it matter
anyway? Even if they have, they're still "only" as good as NIST's clocks, so
why should one over-the-air signal be better than another? (propagation
changes on shortwave, maybe?)
--- Jamie Hanrahan, Kernel Mode Systems, San Diego CA
Internet: jeh@cmkrnl.com (JH645) Uucp: uunet!cmkrnl!jeh CIS: 74140,2055
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End of Info-Hams Digest V93 #1536
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