Date: Fri, 28 Jan 94 15:01:45 PST
From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
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Subject: Info-Hams Digest V94 #83
To: Info-Hams
Info-Hams Digest Fri, 28 Jan 94 Volume 94 : Issue 83
Today's Topics:
10meters, anyone want to try it?
CW filters and DSP-9
Daily Summary of Solar Geophysical Activity for 26 January
DSP Audio Filters
Famous hams
Ham shop in Burlington, VT??
Help - your Vertical Ant. experences.
Hy-Gain telephone no.?
ICOM-R1 frequency shift -- CORRECTION
Ioncap source wanted
nearby broadcast antennas
Nobel Prize to 2 Hams
Power Line Interference (2 msgs)
Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
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Archives of past issues of the Info-Hams Digest are available
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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: Wed, 26 Jan 94 22:58:41 -0500
From: ucsnews!sol.ctr.columbia.edu!howland.reston.ans.net!cs.utexas.edu!swrinde!sgiblab!uhog.mit.edu!xn.ll.mit.edu!noc.near.net!news.delphi.com!usenet@network.ucsd.edu
Subject: 10meters, anyone want to try it?
To: info-hams@ucsd.edu
While there are no formal calling freqs in the Ten Meter Novice band,
there are several freqs that are good places to call CQ.
I find 28.400 has a lot of US ops, and 28.495 can get foriegn DXers
when the band is in good shape. For CW, 28.150 is also sort of an
informal calling freq. 28.135 is used as an AMTOR calling frequency.
73 from Leigh/KM6JE in Santa Barbara.
------------------------------
Date: Wed, 26 Jan 1994 19:31:04 GMT
From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!vixen.cso.uiuc.edu!sdd.hp.com!col.hp.com!srgenprp!alanb@network.ucsd.edu
Subject: CW filters and DSP-9
To: info-hams@ucsd.edu
Rajiv Dewan (rdewan@casbah.acns.nwu.edu) wrote:
[I wrote:]
: >Butterworth and Chebyshev filters have flatter passbands and better shape
: >factors, but at the expense of poorer pulse response (ringing).
: ... there might be more than one source of ringing: ...
: 2. Progressive coloration of background white noise as the filter
: bandwidth is narrowed. ...
That's right. A very narrow band-pass filter can make broadband noise
sound like a raspy tone. I believe that flat-top filters also make this
problem worse than Gaussian filters of the same bandwidth.
AL N1AL
------------------------------
Date: Wed, 26 Jan 1994 21:30:39 MST
From: sdd.hp.com!vixen.cso.uiuc.edu!howland.reston.ans.net!sol.ctr.columbia.edu!destroyer!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@network.ucsd.edu
Subject: Daily Summary of Solar Geophysical Activity for 26 January
To: info-hams@ucsd.edu
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
DAILY SUMMARY OF SOLAR GEOPHYSICAL ACT
26 JANUARY, 1994
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
(Based In-Part On SESC Observational Data)
SOLAR AND GEOPHYSICAL ACT
-----------------------------------------------------------
!!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 026, 01/26/94
10.7 FLUX=127.8 90-AVG=105 SSN=090 BKI=1352 4432 BAI=018
BGND-XRAY=B3.8 FLU1=1.2E+06 FLU10=9.8E+03 PKI=1353 4432 PAI=017
BOU-DEV=008,025,079,016,058,046,020,017 DEV-AVG=033 NT SWF=00:000
XRAY-MAX= M1.5 @ 0136UT XRAY-MIN= B3.3 @ 1349UT XRAY-AVG= B7.0
NEUTN-MAX= +003% @ 0535UT NEUTN-MIN= -001% @ 2350UT NEUTN-AVG= +0.3%
PCA-MAX= +0.1DB @ 2150UT PCA-MIN= -0.4DB @ 2005UT PCA-AVG= -0.0DB
BOUTF-MAX=55348NT @ 0758UT BOUTF-MIN=55312NT @ 1929UT BOUTF-AVG=55336NT
GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+065,+000,+000
GOES6-MAX=P:+122NT@ 1531UT GOES6-MIN=N:-088NT@ 0738UT G6-AVG=+088,+033,-029
FLUXFCST=STD:130,132,130;SESC:130,132,130 BAI/PAI-FCST=020,015,010/022,018,010
KFCST=3345 4333 3344 4322 27DAY-AP=004,018 27DAY-KP=1022 2110 1355 3322
WARNINGS=*SWF
ALERTS=**MINFLR:M1.5/1B@0136,N08W51(7654)
!!END-DATA!!
NOTE: The Effective Sunspot Number for 25 JAN 94 was 65.0.
The Full Kp Indices for 25 JAN 94 are: 1o 2o 1+ 1- 2- 1o 1+ 1o
SYNOPSIS OF ACT
--------------------
Solar activity was moderate. Region 7654 (N08W63)
produced a long duration M1/SF flare at 26/0136. The event was
preceded by a C2/SF which peaked at 26/0118 and was followed by
a C6/SF which peaked at 26/0200. The region continues to show
growth as it approaches the west limb. Regions 7658 (N12W38)
and 7661 (N08E11) have also shown some growth this period. All
other regions are stable.
Solar activity forecast: solar activity is expected to be
low to moderate due to the continued growth of Regions 7654,
7658, and 7661.
The geomagnetic field has been at quiet to mostly active
levels with a brief period of minor storming occurring during
the 06-09Z period at middle latitudes and minor to major
storming occurring during the 12-18Z time frame at higher
latitudes.
Geophysical activity forecast: the geomagnetic field is
expected to be at unsettled to active levels for the next two
days due to a favorably positioned coronal hole. Levels
should be quiet to unsettled on day three.
Event probabilities 27 jan-29 jan
Class M 45/45/45
Class X 05/05/05
Proton 01/01/01
PCAF Green
Geomagnetic activity probabilities 27 jan-29 jan
A. Middle Latitudes
Active 25/35/15
Minor Storm 20/10/01
Major-Severe Storm 05/05/01
B. High Latitudes
Active 20/25/20
Minor Storm 35/25/10
Major-Severe Storm 05/05/01
HF propagation conditions were normal over all but the
high and polar latitude paths where the effects of the sporadic
geomagnetic storming produced periods of poor propagation.
Conditions appeared to be improving slightly toward the end of
the UTC day. Additional periods of minor signal degradation
can be expected over the next day or two as effects from a well
placed coronal hole begin to degrade propagation. Deterioration
will be strongest (with fair to occassionally very poor)
propagation over the high and polar latitude night-sector
circuits.
COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
========================================================
REGIONS WIT
----------------------------------------------------------
NMBR LOCATION LO AREA Z LL NN MAG TYPE
7652 N04W76 220 0110 HSX 02 001 ALPHA
7654 N09W63 207 0680 DKI 08 014 BET
7658 N12W38 182 0160 DAO 10 014 BET
7659 S12W00 144 0010 HSX 02 003 ALPHA
7661 N08E11 133 0110 DAO 04 008 BET
7657 N11W91 235 PLAGE
7660 S09E29 115 PLAGE
REGIONS DUE TO RET
NMBR LAT
7648 N07 024
LISTING OF SOLAR ENERGETIC EVENTS FOR 26 JANUARY, 1994
------------------------------------------------------
BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP
0129 0136 0141 7654 N08W51 M1.5 1B 60
1232 1232 1232 160
2227 2237 2241 7654 N10W68 C1.6 SF 320
POSSIBLE CORONAL MASS EJECTION EVENTS FOR 26 JANUARY, 1994
----------------------------------------------------------
BEGIN MAX END LOCATION TYPE SIZE DUR II IV
NO EVENTS OBSERVED
INFERRED CORONAL HOLES. LOCATIONS VALID AT 26/2400Z
---------------------------------------------------
ISOLATED HOLES AND POLAR EXT
EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
58 N18W29 S20W36 S10W46 N30W36 191 ISO POS 015 10830A
59 N59E19 N28W18 N30W21 N59E19 161 EXT
SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
------------------------------------------------
Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz
------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
25 Jan: 0057 0117 0135 C1.8 SF 7654 N08W34
0154 0158 0221 SF 7654 N08W43
0340 0345 0348 C1.2 SF 7658 N13W12
0543 0546 0551 B6.7
0810 0814 0819 B6.4 SF 7654 N11W37
1256 1305 1307 B7.6 SF 7661 N06E31
1351 1355 1407 B9.9 SF 7654 N11W41
1419 1422 1429 SF 7654 N09W47
1442 1446 1452 C1.1
1459 1505 1510 C1.2 SF 7654 N08W42
1525 1607 1619 C1.1 SF 7658 N12W20
1639 1642 1647 C1.4 SF 7654 N10W49 27 34
1808 1814 1819 C2.7 66 57
1820 1836 1853 M1.6 1N 7654 N09W48 28 85 36
2007 2007 2010 SF 7654 N11W49
2040 2044 2051 C3.1 SF 7654 N10W48 37 210 310
2057 2057 2104 SF 7654 N11W51
2147 2157 2201 B9.2 SF 7654 N10W49
2228 2233 2238 C1.2 SF 7654 N06W49
2311 2315 2320 SF 7654 N11W53
2347 2352 0005 C1.3
REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
------------------------------------------------
C M X S 1 2 3 4 Total (%)
-- -- -- -- -- -- -- -- --- ------
Region 7654: 5 1 0 13 1 0 0 0 014 (66.7)
Region 7658: 2 0 0 2 0 0 0 0 002 ( 9.5)
Region 7661: 0 0 0 1 0 0 0 0 001 ( 4.8)
Uncorrellated: 3 0 0 0 0 0 0 0 004 (19.0)
Total Events: 021 optical and x-ray.
EVENTS WIT
----------------------------------------------------------------
Date Begin Max End Xray Op Region Locn Sweeps/Optical Observations
------ ---- ---- ---- ---- -- ------ ------ ---------------------------
25 Jan: 0340 0345 0348 C1.2 SF 7658 N13W12 III,Continuum
1351 1355 1407 B9.9 SF 7654 N11W41 III
1639 1642 1647 C1.4 SF 7654 N10W49 V
1820 1836 1853 M1.6 1N 7654 N09W48 II
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, 24 Jan 94 20:00:00 -0500
From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!sol.ctr.columbia.edu!news.columbia.edu!psinntp!psinntp!channel1!jack.treger@network.ucsd.edu
Subject: DSP Audio Filters
To: info-hams@ucsd.edu
CO>I have an FT-990. I also have the Timewave DSP-59. If you liked what the
CO>SCAF filters in the 990 did, the DSP-59 will knock your socks off. On CW
CO>it can can go down to 50Hz bandpass, all you hear is the tone with virtually
CO>no ringing!! But it really shines on SSB with its 2 noise reduction and
CO>heterodyne elimination algorithms. Try one some time, you'll be amazed!!
CO>I have had the DSP-59 for about 8 months, and now I can't do without it!
Do you know how the DSP-59 copares to the JSP NIR-10 unit?
---
SLMR 2.1a -
------------------------------
Date: Fri, 28 Jan 1994 02:49:06 GMT
From: usc!howland.reston.ans.net!cs.utexas.edu!utnut!nott!cunews!freenet.carleton.ca!FreeNet.Carleton.CA!ab510@network.ucsd.edu
Subject: Famous hams
To: info-hams@ucsd.edu
In a previous article, mosier@fagan.uncg.edu (Stephen Mosier) says:
>In article <2hmper$ppo@solaris.cc.vt.edu> benchoff@groupw.cns.vt.edu
>(Phil Benchoff) writes:
>>I know this has been discussed several times on this list. I am
>>looking for a list of famous hams.
>
>Here's my list, gleaned from others:
>
>SOME FAMOUS HAMS...
>
K2LSD Timothy Leary
W1RF Reginald Fessenden
WA3HR Babe Ruth
K2RCA General Sarnoff
G1LIZ Queen Elizabeth
R1JOE Josef Stalin
A1USA Uncle Sam
K3GMC Pres. General Motors
N0RM Gen Norman Swartzkof
KA7JJ Jesse James
M4BEL Ma Bell
CL0WN Charlie Chaplin
K5LEE Lee Iaccocca
K1LL Charles Ng
CH0P Jeffrey Dahmer
F1ZZ CEO Coca-Cola
T0KYO Emperor Hirohito
E1EIO Old McDonald
H0HO Santa Claus
W7KID Billy The Kid
--
GEORGE ATTALLAH - VE3KIA -OTTAWA CANADA
"THE LAST SURVIVOR OF THE GROUP OF ONE"
"THE ONLY ONE IN CAPTIVITY"
------------------------------
Date: 28 Jan 94 20:30:52 GMT
From: news-mail-gateway@ucsd.edu
Subject: Ham shop in Burlington, VT??
To: info-hams@ucsd.edu
In Info-Hams Digest V94 No. 78 (item 5) emba-news.uvm.edu!wetzel@uunet.uu.net writes:
>Can anyone tell me of a Ham radio shop selling ARRL books or other repeater
>maps and eventually 2M handhelds in the Burlington, VT area.
>I have seen adds in 73 but shipping of $5 for a $6 book seems excessive.
>
>Thanks
>
>Dan Wetzel
>
Subject: HAM Book store...
E-Mail won't make it to you at emba-news.uvm.edu!wetzel@uunet.uu.net so....
Dan,
In the back of the bookstore in the Ethan Allen Shopping Plaza is a
fairly large selection of ARRL publications. What they don't have
they will order and you pay the price marked on the book. I don't
remember the name of the store off hand (North Ave. Books or something
like that). I am a local call for you, so if you have questions call
me.
The Plaza is on North Avenue about 2.0 miles west of Burlington High Scool.
ron
Ron Rossi
/====================================================================/
/ IBM Microelectronics Internet: rrossi@vnet.ibm.com /
/ H/P ASIC SRAM Design VNET: RROSSI at BTVLABVM /
/ Dept N93 Bldg 861-2 Voice: 802/769-7477 /
/ 1000 River Road RF: N1PBT /
/ Essex Junction, VT 05452-4299 /
/ /
/ "I work for IBM, I don't represent its views!" /
/ /
/====================================================================/
------------------------------
Date: 28 Jan 94 00:25:21 GMT
From: ogicse!news.tek.com!cascade.ens.tek.com!not-for-mail@network.ucsd.edu
Subject: Help - your Vertical Ant. experences.
To: info-hams@ucsd.edu
In article <1994Jan27.134222.1@tntvax> ddb@tntvax.ntrs.com (Dan Bowker [x 6587]) writes:
>I posted this on the ...antenna group, but more people read this so...
>
>I'm looking to buy this weekend a ground independent vertical for HF. I have
>a very limited area (can go up as far as I want) and limited funds. 40m and
>80m would be a big + but not a requirement.
>
I have been running a Butternut HF6V for 9 years or so and believe it
is one of the best all band verticals around. Don't know too much about the
others but the R5 is a vertical dipole and as such does not have as much gain
as a quarter wave gound plane or similar antenna. Note the Butternut as well
as any other gound plane style antenna require radials, ground rods, etc.
Terry Burge
KI7M
------------------------------
Date: Tue, 25 Jan 1994 19:39:18 -0800
From: mvb.saic.com!unogate!news.service.uci.edu!usc!elroy.jpl.nasa.gov!mcws!FUsenetToss@network.ucsd.edu
Subject: Hy-Gain telephone no.?
To: info-hams@ucsd.edu
Does anyone have an 800 number for Telex/Hy-Gain? My tribander driven
element broke in the earthquake and I want to see if they can supply
parts for it.. 73 DE K6DDX
------------------------------
Date: Tue, 25 Jan 94 15:21:46 PST
From: pa.dec.com!synchrods.com!daniel@decwrl.dec.com
Subject: ICOM-R1 frequency shift -- CORRECTION
To: info-hams@ucsd.edu
Daniel Senderowicz <daniel@synchrods.com> wrote:
>Sometime ago a problem appeared in my ICOM R1 receiver. If I
^^
>move the tuning knob while the radio is off, one of the memories
>(it only has 2) will be shifted by -16 kHz, in other words if it
>was tuned at 6060 it will appear at 6044 next time I'll turn it
>on. The other memory is fine, remaining at whatever frequency
>was. If I don't move the knob, the frequency will remain
>undisturbed. Did anybody experience anything like this? Thanks,
>
>Dan.
Sorry fellows, I made a typo on the posting. I was referring to
the ICOM IC-R70.
I also checked the problem by turning off the receiver with the
0.1kHz button pushed on. In this case the shift is 1.6kHz. I'm
puzzled, I don't know if this is a mechanical or an electrical
problem. Thanks to those who sent me ideas. Cheers,
Dan.
------------------------------
Date: 26 Jan 1994 18:57:52 GMT
From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!noc.near.net!sunfish.hi.com!brainiac.hi.com!user@network.ucsd.edu
Subject: Ioncap source wanted
To: info-hams@ucsd.edu
I'm looking for the source for Ioncap, which I understand to have been
developed by the US Gov't and be in the public domain. I suppose I could
get it through NTIS on 9-track tape for a hundred or so bucks, but I'm
hoping someone knows of an ftp site for it.
While we're at it, how about the source for minimuf?
Thanks,
-Steve
Steve Byan internet: steve@hicomb.hi.com
Hitachi Computer Products (America), Inc.
1601 Trapelo Road phone: (617) 890-0444
Waltham, MA 02154 FAX: (617) 890-4998
------------------------------
Date: Wed, 26 Jan 1994 19:56:59 GMT
From: mvb.saic.com!unogate!news.service.uci.edu!usc!sdd.hp.com!col.hp.com!srgenprp!alanb@network.ucsd.edu
Subject: nearby broadcast antennas
To: info-hams@ucsd.edu
Jack GF Hill (root@jackatak.raider.net) wrote:
: This may be a case where the "new" and "great" technology is working
: against you. The typical solid-state ricebox of today is NOT built to
: operate in the near field of a strong RF source...
: An older "hollow-state" rig will not have the same problems, ...
The tube rigs weren't perfect either. I remember my old 75A2 was useless
on the 160 meter band because of strong local BC stations. You could
hear some crud on 80 meters too, mostly harmonics.
AL N1AL
------------------------------
Date: 28 Jan 1994 17:36:16 GMT
From: dog.ee.lbl.gov!agate!hil1mac39.cchem.berkeley.edu!user@network.ucsd.edu
Subject: Nobel Prize to 2 Hams
To: info-hams@ucsd.edu
In article <17088.jahern@geohub.gcn.uoknor.edu>,
<jahern@geohub.gcn.uoknor.edu> wrote:
>
> The December, 1993, issure of Physics Today, published by the American
> Institute of Physics, has an article about Russell Hulse and Joseph Taylor,
> who recently received the Nobel prize in physics for their discovery of
> the first binary pulsar.
I believe there was also an article about these two in a fall issue of QST.
Bob
------------------------------
Date: Wed, 26 Jan 1994 20:01:22 GMT
From: mvb.saic.com!unogate!news.service.uci.edu!usc!elroy.jpl.nasa.gov!sdd.hp.com!col.hp.com!srgenprp!alanb@network.ucsd.edu
Subject: Power Line Interference
To: info-hams@ucsd.edu
Doug Snowden (drs@ccd.harris.com) wrote:
: For the past 3 years I have been trying to track down some noise that appears
: to be coming from the power lines. ...
: The noise has a cyclic period of about 1.5 seconds on and
: 1.5 seconds off. This part doesn't vary. If I have the noise, it has this
: period.
The above raises my suspicions that the noise may not be originating in the
power pole itself. What other buildings are fed from the same transformer
that is on that pole? Do any of them have some electrical device with a
3-second on/off cycle time?
AL N1AL
------------------------------
Date: 26 Jan 1994 19:27:08 GMT
From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!newncar!noao!CS.Arizona.EDU!organpipe.uug.arizona.edu!helium!hlester@network.
Subject: Power Line Interference
To: info-hams@ucsd.edu
In article <1994Jan26.145524.6118@ke4zv.atl.ga.us>,
Gary Coffman <gary@ke4zv.atl.ga.us> wrote:
>In article <1994Jan25.140537.16951@ccd.harris.com> drs@ccd.harris.com (Doug Snowden) writes:
>>Please don't tell me to go beat on the pole!
>
>Well that's what the power company is going to do. Many problems like
>this are due to something coming loose mechanically on the pole. Jarring
>it is the way they pin it down. This *is* best left to professionals,
An employee of our power company (Tucson Electric Power) is employed to track
down power line interference by using radio direction finding equipment. He has a variety of radios in his truck, as well as a hand-held yagi (that looks as if
it's cut for around 450 MHz). He is getting to be really good at this, and has
recently helped me out by getting some ten or so poles in my neighborhood
repaired. No more noise!
The point of all this is that taking a sledgehammer to a pole is not the only
way to pin down the noise.
Howard KE7QJ
------------------------------
Date: Tue, 25 Jan 1994 17:07:11 GMT
From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!sol.ctr.columbia.edu!news.columbia.edu!psinntp!psinntp!ctp!nchak@network.ucsd.edu
To: info-hams@ucsd.edu
References <1994Jan14.005918.1@auvax1.adelphi.edu>, <2h7a43$89b@crl2.crl.com>, <1994Jan15.161325.16129@ke4zv.atl.ga.us>
Subject : Mail order info for multi-system VCR, FAQ
I am considering buying a multi-sytem VCR to take to India. It must play
NTSC and PAL. Is there a list of mail-order places that might stock an
item such as this?
I tried J&R Music World, they list an AIWA for $380 and another for $500.
B&H has some professional stuff for $1850 (too much for me).
Also, where is the FAQ for this newsgroup?
Thanks,
Navaneeth
--
-----------------------------------------------------------------------------
Navaneeth Chakravarti, x456 Cambridge Technology Partners
e-mail: nchak@ctp.com Voice: (517) 372-8400
chakrava@egr.msu.edu (617) 374-8456
------------------------------
End of Info-Hams Digest V94 #83
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