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1994-11-13
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Date: Mon, 18 Apr 94 10:01:45 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 #430
To: Info-Hams
Info-Hams Digest Mon, 18 Apr 94 Volume 94 : Issue 430
Today's Topics:
(none)
2 meters propa (2 msgs)
Callbook on line?
Collins museum/Cedar Rapids?
Daily Summary of Solar Geophysical Activity for 17 April
HELP: Building circuit (11/93 QST) field effect trans (fet) question?
IPS Daily Report - 14 April 94
multimode controllers
radio in caves
Repeaters in Monterey area?
SAREX element set 4/14/94 at 0:40 UTC
STS-59 mission extended
What's the best freq for underground radio? (2 msgs)
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: 15 Apr 94 03:21:00 GMT
From: agate!howland.reston.ans.net!europa.eng.gtefsd.com!library.ucla.edu!news.ucdavis.edu!modem60.ucdavis.edu!ddtodd@ucbvax.berkeley.edu
Subject: (none)
To: info-hams@ucsd.edu
In article <199404131445.HAA02807@ucsd.edu> rrossi@VNET.IBM.COM (Ron D. Rossi) writes:
>>My favorite was the two repeater users in Stockton on a local repeater. Ham 1
>>said "I wonder if we can talk to each other simplex?" Ham 2 " I don't know
>>let's try" Ham 1 " How do we do it?" Ham 2 "Just hit the the reverse
>>button." I eventually felt pity for them and helped explain how it worked for
>>them and they were able to rech each other simplex but you really have to
>>wonder how some people's minds work.
>I will often use the reverse funtion to tell if another amateur is
>within simplex range while he/she is transmitting. That's a perfectly
>valid way of determining whether simplex is an option. Holding a
>conversation on the repeater output however is definitely questionable
>behavior.
Guess, I wasn't really clear they BOTH hit "reverse" this doesn't work nearly
as well. :-)
>PS.. The only arms that Slick and Tonto want you to keep are the ones
>attached to you at the shoulder.
Sadly, I think you are more honest about their motives than they are, but why
should this be any different than the tales about everything else they "stand
for. :-(
cheers,
Dan
=================================================================
Dan Todd ddtodd@ucdavis.edu KC6UUD
--------------------------------------------------------------------------------------------------------------------------------
Bill Clinton and Al Gore know that the Constitution guarantees
an individuals basic right to keep and bear arms, and they
will uphold that right. - Whitehouse Position Paper
=================================================================
------------------------------
Date: 18 Apr 1994 10:49:22 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!pipex!zaphod.crihan.fr!jussieu.fr!univ-lyon1.fr!elendir@network.ucsd.edu
Subject: 2 meters propa
To: info-hams@ucsd.edu
Hello !
I was wondering if there were any means to forecast VHF or UHF propag.
conditions. I understand much of it is rather umpredicable, but ...
Thanks,
Vince.
--
PSG --- Paris SG football club. | Ham radio call : F1RCS
-----------------------------------------------------------------------
ENST - Ecole Nationale Superieure des Telecommunications, Paris, France
------------------------------
Date: 18 Apr 1994 12:45:49 GMT
From: ihnp4.ucsd.edu!agate!usenet.ins.cwru.edu!cleveland.Freenet.Edu!co128@network.ucsd.edu
Subject: 2 meters propa
To: info-hams@ucsd.edu
Unpredictable is correct. Most propagation conditions on UHF and
VHF are caused by weather conditions (approaching warm fronts,
being under a high pressure area etc.)
--
JIM MARTIN W8AC
co128@cleveland.freenet.edu
------------------------------
Date: 18 Apr 94 15:13:11 GMT
From: dog.ee.lbl.gov!ihnp4.ucsd.edu!swrinde!dptspd!lcz@ucbvax.berkeley.edu
Subject: Callbook on line?
To: info-hams@ucsd.edu
joelfr@aol.com (JoelFr) writes:
>I have used:
> callbook@sat.datapoint.com
I plan to discontinue this email callbook server at the end of April.
The data I'm using is very old, and I don't have the resources to keep
it updated.
There are other callbook servers available, including ones available
via email. I can't remember the addresses offhand, but I would
appreciate it if someone would post their addresses to this list so I
can include them in the responses from my server.
73/Lee, N5LYT
------------------------------
Date: 18 Apr 94 15:36:00 GMT
From: news-mail-gateway@ucsd.edu
Subject: Collins museum/Cedar Rapids?
To: info-hams@ucsd.edu
I'll be in the Waterloo/Cedar Rapids, Iowa area later this week. I have
this vague recollection that there is some type of radio museum in Cedar
Rapids, probably something to do with Collins Radio. Anyone know the
place, days and hours it's open, etc?
Thanks. Pse reply directly to 'price@nosc.mil'.
73--Jim, K6ZH
------------------------------
Date: Sun, 17 Apr 1994 21:48:19 MDT
From: ihnp4.ucsd.edu!library.ucla.edu!psgrain!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@network.ucsd.edu
Subject: Daily Summary of Solar Geophysical Activity for 17 April
To: info-hams@ucsd.edu
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
DAILY SUMMARY OF SOLAR GEOPHYSICAL ACTIVITY
17 APRIL, 1994
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
(Based In-Part On SESC Observational Data)
SOLAR AND GEOPHYSICAL ACTIVITY INDICES FOR 17 APRIL, 1994
---------------------------------------------------------
!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 107, 04/17/94
10.7 FLUX=081.8 90-AVG=094 SSN=038 BKI=6677 4224 BAI=063
BGND-XRAY=A4.8 FLU1=8.2E+05 FLU10=1.1E+04 PKI=7898 5334 PAI=130
BOU-DEV=164,191,304,217,046,019,017,045 DEV-AVG=125 NT SWF=00:000
XRAY-MAX= B1.2 @ 2131UT XRAY-MIN= A3.4 @ 0702UT XRAY-AVG= A5.3
NEUTN-MAX= +001% @ 1930UT NEUTN-MIN= -005% @ 1325UT NEUTN-AVG= -1.8%
PCA-MAX= +0.4DB @ 1400UT PCA-MIN= -1.2DB @ 2300UT PCA-AVG= -0.1DB
BOUTF-MAX=55355NT @ 0251UT BOUTF-MIN=55019NT @ 0924UT BOUTF-AVG=55286NT
GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+081,+000,+000
GOES6-MAX=P:+170NT@ 1851UT GOES6-MIN=N:-205NT@ 0955UT G6-AVG=+100,+039,-083
FLUXFCST=STD:095,095,090;SESC:095,095,090 BAI/PAI-FCST=030,020,020/040,025,025
KFCST=5556 5554 3334 4333 27DAY-AP=027,018 27DAY-KP=3644 4443 4323 5333
WARNINGS=*GSTRM;*AURMIDWRN;*AURLOWWCH
ALERTS=**MAJSTRM
!!END-DATA!!
NOTE: The Effective Sunspot Number for 16 APR 94 was 12.9.
The Full Kp Indices for 16 APR 94 are: 3o 6- 5o 2o 3o 3- 5- 4+
The 3-Hr Ap Indices for 16 APR 94 are: 15 64 45 8 16 14 37 31
Greater than 2 MeV Electron Fluence for 17 APR is: 1.3E+07
SYNOPSIS OF ACTIVITY
--------------------
Solar activity was very low. Region 7701 (N08E42)
was quiet and stable, but is showing some growth with the em-
ergence of some new spots.
Solar activity forecast: solar activity is expected to be
very low.
The geomagnetic field ranged from quiet to severe storm
levels for the past 24 hours. Yesterday's distrubance
intensified to major to severe levels from 0000-1200UT with K's
of 9 reported at some high latitude sites. NOAA/SESC received
numerous reports of auroral sightings. Conditions dropped off
around 1200Z and became quiet to unsettled near day's end. The
greater than 2 MeV electron fluences were at high levels early
in the day but dropped down to normal back-ground levels
around 0500Z.
STD: Periods of intense auroral activity were sighted
throughout a good portion of North America during this
disturbance. Significant equatorward expansion of the auroral
oval was apparent with the equatorward edge lying in the
extreme northern U.S. states for a good portion of the local
night. Auroral activity was officially sighted as far south as
Toledo Ohio, Otis AFB in Massachusetts, Scottsbluff Nebraska
and Hanford Washington (near 40 degrees north latitude).
Unofficial reports and observed intensity levels indicate that
activity was observed equatorward of these official sites. We
received over 240 individual reports of auroral activity
sightings over the last 24 hours.
Geophysical activity forecast: the geomagnetic field is
expected to be at minor to major storm levels for the next 12
to 24 hours: the more disturbed periods are likely to occur
during local nighttimes and less disturbed during daytime
hours. Conditions are likely to remain at active levels
through the second and third days as a coronal hole will be
in favorable position at that time.
Event probabilities 18 apr-20 apr
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
Geomagnetic activity probabilities 18 apr-20 apr
A. Middle Latitudes
Active 20/40/40
Minor Storm 35/20/20
Major-Severe Storm 25/10/10
B. High Latitudes
Active 20/35/35
Minor Storm 30/20/20
Major-Severe Storm 35/15/15
HF propagation conditions were strongly disturbed over the
last 24 hours. Intense geomagnetic and auroral storming
completely knocked-out transpolar and transauroral circuits
during the first 18 hours of the UTC day. Middle latitudes
also observed heavy signal degradation with poor to
occassionally near-useless propagation. Conditions began
improving after approximately 18:00 UTC with the stabilization
of geophysical activity. Another favorably positioned coronal
hole should continue to keep propagation conditions
below-normal over most regions during the next several days.
COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
========================================================
REGIONS WITH SUNSPOTS. LOCATIONS VALID AT 17/2400Z APRIL
--------------------------------------------------------
NMBR LOCATION LO AREA Z LL NN MAG TYPE
7700 N05W51 208 0000 BXO 04 003 BETA
7701 N08E42 115 0120 CSO 09 004 BETA
7702 S11E48 109 0000 AXX 00 001 ALPHA
REGIONS DUE TO RETURN 18 APRIL TO 20 APRIL
NMBR LAT LO
NONE
LISTING OF SOLAR ENERGETIC EVENTS FOR 17 APRIL, 1994
----------------------------------------------------
BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP
0924 0924 0925 130
POSSIBLE CORONAL MASS EJECTION EVENTS FOR 17 APRIL, 1994
--------------------------------------------------------
BEGIN MAX END LOCATION TYPE SIZE DUR II IV
NO EVENTS OBSERVED
INFERRED CORONAL HOLES. LOCATIONS VALID AT 17/2400Z
---------------------------------------------------
ISOLATED HOLES AND POLAR EXTENSIONS
EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
NO DATA AVAILABLE FOR ANALYSIS
SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
------------------------------------------------
Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz
------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
16 Apr: 0419 0425 0429 B1.0
0730 0735 0739 B1.3
1333 1339 1344 B2.3 SF 7701 N07E62
REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
------------------------------------------------
C M X S 1 2 3 4 Total (%)
-- -- -- -- -- -- -- -- --- ------
Region 7701: 0 0 0 1 0 0 0 0 001 (33.3)
Uncorrellated: 0 0 0 0 0 0 0 0 002 (66.7)
Total Events: 003 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, 18 Apr 1994 14:49:19 GMT
From: ihnp4.ucsd.edu!pacbell.com!att-out!cbfsb!cbnewsf.cb.att.com!cropley@network.ucsd.edu
Subject: HELP: Building circuit (11/93 QST) field effect trans (fet) question?
To: info-hams@ucsd.edu
Need some electronics help. I'm building a project from the Nov. issue
(1993) of QST. (the circuit for your car which help protect your radio)
(page 72 I believe).
I undertand transitors (base,collector,emiter) however this circuit
requires a field-effect-transitor (fet) they use Source, Gate and Drain
for each lead. I wanted to verify my guess.
source goes to ground. gate is the input side, drain is the output.
looks like a neat little circuit. I also added a replaceable fuse to the
circuit board.
thanks,
andy cropley
acropley@attmail.att.com
------------------------------
Date: 14 Apr 94 23:49:46 GMT
From: agate!howland.reston.ans.net!EU.net!sunic!ugle.unit.no!trane.uninett.no!nac.no!ifi.uio.no!wabbit.cc.uow.edu.au!news.ci.com.au!metro!ipso!rwc@ucbvax.berkeley.edu
Subject: IPS Daily Report - 14 April 94
To: info-hams@ucsd.edu
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 14/2330Z APRIL 1994 BY IPS RADIO AND SPACE SERVICES
FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY.
SUMMARY FOR 14 APRIL AND FORECAST UP TO 17 APRIL
IPS Warning 11 will be issued later today.
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity: very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number : 079/019
1B. SOLAR FORECAST
15 April 16 April 17 April
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
Forecast 10.7 cm flux/Equivalent Sunspot Number : 080/020
1C. SOLAR COMMENT
None.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth: mostly unsettled, with brief
active to minor storm periods 09-15UT.
Estimated Indices : A K Observed A Index 13 April
Learmonth 20 3334 5333
Fredericksburg 20 24
Planetary 25 25
Observed Kp for 13 April: 3454 3444
2B. MAGNETIC FORECAST
DATE Ap CONDITIONS
15 Apr 15 Unsettled.
16 Apr 20 Unsettled.
17 Apr 45 Active to minor storm.
2C. MAGNETIC COMMENT
None.
3A. GLOBAL HF PROPAGATION SUMMARY
LATITUDE BAND
DATE LOW MIDDLE HIGH
14 Apr normal fair-normal poor-fair
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
LATITUDE BAND
DATE LOW MIDDLE HIGH
15 Apr normal fair-normal poor-fair
16 Apr normal fair-normal poor-fair
17 Apr normal normal fair
3C. GLOBAL HF PROPAGATION COMMENT
NONE.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUFs at Sydney were near normal to 15% depressed.
Observed T index for 14 April: 22
Predicted Monthly T Index for April is 40.
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
DATE T-index MUFs
15 Apr 20 Near predicted monthly values/depressed 15%.
16 Apr 25 Near predicted monthly values/depressed 15%.
17 Apr 30 Near predicted monthly values.
4C. AUSTRALIAN REGION COMMENT
None.
--
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: 18 Apr 94 13:30:50 GMT
From: news-mail-gateway@ucsd.edu
Subject: multimode controllers
To: info-hams@ucsd.edu
I have another multmode controller question. I've heard an unconfirmed
rumor that the AEA PK232 is easily upgradable to 9600 baud packet, while
the KamPlus cannot and will not support 9600 baud. Is this true?
tnx es 73 de Steve KB2PWM
------------------------------
Date: 18 Apr 1994 15:22:30 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!howland.reston.ans.net!vixen.cso.uiuc.edu!usenet.ucs.indiana.edu!master.cs.rose-hulman.edu!news@network.ucsd.edu
Subject: radio in caves
To: info-hams@ucsd.edu
howdy
Question: What would be the best band for radio communication inside
of caves.
===============
Don;
Write to the NSS. (Does it still exist?) There was an article on this
quite a while back.
73 de Jack, K9CUN (used to be spelunker)
------------------------------
Date: Sun, 17 Apr 1994 07:23:35 -0500
From: galileo.cc.rochester.edu!ee.rochester.edu!rochgte!UUCP@cs.rochester.edu
Subject: Repeaters in Monterey area?
To: info-hams@ucsd.edu
hl> We will be taking a trip to Monterey sometime so I'm looking for
hl> info on open 2m repeaters in that area. We will also be in Solvang so
hl> info for that area would also be appreciated.
I can't help you on the Monterey part, but I can with Solvang.
The problem with it is it's in a valley that isn't served by repeaters
too well. You can't hit any of the machines in Santa Barbara, at least
no one I've talked to can. There is one that would probably work though,
and that's 145.18-, there's a PL of 131.8 I believe. There are several
machines in Solvang and a couple in Lompoc that may be of interest. They
are:
146.895 - (No PL)
147.210 + (No PL)
145.120 - (PL 100.0)
145.420 - (No PL)
147.120 + (No PL)
That's what the repeater directory has. .120 is interesting because it's
part of the WALA link which runs from King City to San Diego and out to
the desert.
Hope this helps...
... RAM DISK is NOT an installation procedure!
------------------------------
Date: 15 Apr 94 02:27:20 GMT
From: agate!howland.reston.ans.net!cs.utexas.edu!swrinde!ihnp4.ucsd.edu!library.ucla.edu!news.ucdavis.edu!csus.edu!netcom.com!marcbg@ucbvax.berkeley.edu
Subject: SAREX element set 4/14/94 at 0:40 UTC
To: info-hams@ucsd.edu
Greenbelt, MD, 4/14/94 at 0:40 UTC
The official SAREX element set at this time is GSFC-016. This element set
was generated by Ron Parise, WA4SIR, of the Goddard Space Flight Center.
Gil Carman, WA5NOM, reports that the predictions using GSFC-016 were 6
seconds earlier than GSFC-014 as of 15:00 UTC on 4/13.
STS-59
1 23042U 94020A 94103.28423883 0.00019321 11073-4 10308-4 0 169
2 23042 56.9943 245.4685 0009256 288.8199 71.1887 16.21374060 631
Satellite: STS-59
Catalog number: 23042
Epoch time: 94103.28423883 (13 APR 94 06:49:18.24 UTC)
Element set: GSFC-016
Inclination: 56.9943 deg
RA of node: 245.4685 deg Space Shuttle Flight STS-59
Eccentricity: 0.0009256 Keplerian Elements
Arg of perigee: 288.8199 deg
Mean anomaly: 71.1887 deg
Mean motion: 16.21374060 rev/day Semi-major Axis: 6593.9561 Km
Decay rate: 0.19E-03 rev/day*2 Apogee Alt: 221.67 Km
Epoch rev: 63 Perigee Alt: 209.46 Km
NOTE:
This element set is based on NORAD element set # 016.
The spacecraft has been propagated to the next ascending
node, and the orbit number has been adjusted to bring it
into agreement with the NASA numbering convention.
Submitted by Frank H. Bauer, KA3HDO for the SAREX Working Group
--
Marc Grant Voice Mail: 214-246-1150
home: marcbg@netcom.com work: marcbg@esy.com Amateur Radio N5MEI
------------------------------
Date: Mon, 18 Apr 1994 12:49:40 GMT
From: netcomsv!netcom.com!marcbg@decwrl.dec.com
Subject: STS-59 mission extended
To: info-hams@ucsd.edu
Greenbelt, MD, 4/17/94 at 15:40 UTC
The STS-59 mission has been extended by one day. Landing is now set for
15:53 UTC on Tuesday April 19. This extension day provides an additional
day of SAREX operations for those interested in making a SAREX contact.
The official SAREX element set for today is still JSC-021. This element
set was generated by Gil Carman, WA5NOM, of the Johnson Space Flight Center.
STS-59
1 23042U 94020A 94105.62622017 .00203357 11079-4 10947-3 0 213
2 23042 56.9933 234.1397 0007233 279.9940 80.0358 16.22652200 1014
Satellite: STS-59
Catalog number: 23042
Epoch time: 94105.62622017 = (15 APR 94 15:01:45.42 UTC)
Element set: 021
Inclination: 56.9933 deg
RA of node: 234.1397 deg Space Shuttle Flight STS-59
Eccentricity: .0007233 Keplerian Element set JSC-021
Arg of perigee: 279.9940 deg from NASA flight Day 7 vector
Mean anomaly: 80.0358 deg
Mean motion: 16.22652200 rev/day G. L. Carman
Decay rate: 2.03357e-03 rev/day^2 NASA Johnson Space Center
Epoch rev: 101
Checksum: 271
Submitted by Frank H. Bauer, KA3HDO for the SAREX Working Group
--
Marc Grant Voice Mail: 214-246-1150
home: marcbg@netcom.com work: marcbg@esy.com Amateur Radio N5MEI
------------------------------
Date: 18 Apr 1994 15:21:33 GMT
From: ihnp4.ucsd.edu!usc!cs.utexas.edu!howland.reston.ans.net!vixen.cso.uiuc.edu!usenet.ucs.indiana.edu!master.cs.rose-hulman.edu!news@network.ucsd.edu
Subject: What's the best freq for underground radio?
To: info-hams@ucsd.edu
Question: What would be the best band for radio communication inside
of caves.
===============
Don;
Write to the NSS. (Does it still exist?) There was an article on this
quite a while back.
73 de Jack, K9CUN (used to be spelunker)
------------------------------
Date: 18 Apr 1994 15:21:53 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!howland.reston.ans.net!vixen.cso.uiuc.edu!usenet.ucs.indiana.edu!master.cs.rose-hulman.edu!news@network.ucsd.edu
Subject: What's the best freq for underground radio?
To: info-hams@ucsd.edu
howdy
Question: What would be the best band for radio communication inside
of caves.
===============
Don;
Write to the NSS. (Does it still exist?) There was an article on this
quite a while back.
73 de Jack, K9CUN (used to be spelunker)
------------------------------
End of Info-Hams Digest V94 #430
******************************