Ham Radio/Ham Radio CD-ROM (Emerald Software) (1995).ISO/news/ih91210b/ih91217.txt

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Date: Fri, 22 Mar 91 13:02:46 PST
From: Info-Hams Mailing List and Newsgroup <[e-mail]>
Reply-To: [e-mail]
Subject: Info-Hams Digest V91 #217
To: [e-mail]


Info-Hams Digest            Fri, 22 Mar 91       Volume 91 : Issue 217

Today's Topics:
                       2m/70cm comparison chart
                         Alinco 590 (3 msgs)
                     Bicycle Power for Field Day
                      Drake R4C Service Manual?
                            ELF and cancer
                                FT-411
                  Fun with Balloons and long wires!
                      Ham Trader Yellow Sheets?
                               HR 2600
                      Icom CI V interface specs?
                 Looking for High Voltage Capacitors
                       Looking for Old Manuals
                       magnetic antennas for HF
                            Mailing lables
           MAJOR SOLAR FLARE ALERT - 21 MARCH - TWO EVENTS
  MAJOR SOLAR FLARE ALERT - 22 MARCH - STRANGE TYPE IV WITH 21 MARCH
                                Morse
                          non-11m 'CB' bands
                      Novice exam study material
                     Orbital Predictions for Unix
                              Sony 2001
                        TH-77A hum in TX audio
                              TH-77 mods
                         WEATHER FAX ON PC'S
                          Yaesu FT-470 Mods

Send Replies or notes for publication to: <[e-mail]>
Send subscription requests to: <[e-mail]>
Problems you can't solve otherwise to [e-mail].

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: 13 Mar 91 15:20:38 GMT
From: vtserf![e-mail]
Subject: 2m/70cm comparison chart
To: [e-mail]

Thanks to everyone that sent me updates for the chart that I posted
yesterday.  I will post a revised version in a day or two.  I have not
heard anything from Alinco DJ-500T or DJ-560T owners.  Doesn't anyone
have one of these?

Phil Benchoff
[e-mail]

------------------------------

Date: 15 Mar 91 13:21:43 GMT
From: ZEN.CAC.STRATUS.COM![e-mail]
Subject: Alinco 590
To: [e-mail]

The 590 manual is just being finished. It will probably take until
the end of next week before it is in the mail to ALINCO. If you
care to reach me , call (508)-460-2548 7:30am-4:00pm est.

For those who have mailed me with a SASE for a schematic, I just
received a reasonable copy and will get it off to you in the next
few days. I will include the manual into the info-hams newsletter
for later reference.

Jay (KA1SNA)

------------------------------

Date: 19 Mar 91 00:25:31 GMT
From: swrinde!zaphod.mps.ohio-state.edu!samsung!rex!uflorida![e-mail]
Subject: Alinco 590
To: [e-mail]

I need all the info that you guys can give me on the Alinco DR-590T
I am planning on buying a dual (TWIN) Bander, and this seems to be the
.    Thank you for you help in a advance.    -Jon  KC4NWK

------------------------------

Date: 19 Mar 91 00:01:55 GMT
From: swrinde!zaphod.mps.ohio-state.edu!caen!uflorida![e-mail]
Subject: Alinco 590
To: [e-mail]

Why do you say that, I have had some experience with the 590,
and think that is a darn good radio.  Would really like to know what you
dislike about the radio.

------------------------------

Date: 14 Mar 91 21:11:36 GMT
From: sdd.hp.com!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!hpb.cis.pitt.edu![e-mail]
Subject: Bicycle Power for Field Day
To: [e-mail]

   Our ham club is considering using bicycle power for our natural power
multiplier for Field Day this year.

   1) Has anybody out there done this?  I'd appreciate any comments.

   2) How about suggesting some references?

   Last year, we used solar power to great success.  Not only did it
work well, we made the 11 PM TV news.  Alternative power sources is a
great way to attract the media, and we're looking for a different
"gimmick" for this year.

73,
Harry Bloomberg WA3TBL

------------------------------

Date: 13 Mar 91 01:52:46 GMT
From: hpl-opus!hpnmdla![e-mail]
Subject: Drake R4C Service Manual?
To: [e-mail]

In rec.radio.amateur.misc, [e-mail] (Gary Bishop - Sun Visualization Products) writes:

>I'm wondering if there is/was a service manual on the Drake 4-line?  I
>can probably get everything I need from the owners manual but an
>original service manual might come in handy when trying to determine
>the detailed specifications for some of the parts.


As far as I know the owner's manual IS the service manual.  It has the
schematic, theory of operation and alignment procedures.

AL N1AL

------------------------------

Date: 13 Mar 91 19:45:44 GMT
From: hpl-opus!hpnmdla![e-mail]
Subject: ELF and cancer
To: [e-mail]

To put ELF (Extremely Low Frequency = 60 Hz) fields into perspective,
a typical Computer monitor puts our magnetic fields on the order of
a few milligauss, similar to what you get from many other electrical
appliances.

The earth's magnetic field is about 500 milligauss (1/2 gauss).
The argument is that the earth's field is DC and power line radiation
is AC which might have different effects on the body. Now presumably
the earth's field is benign (after all, our ancestors have been
evolving in it for millions of years.)  I have a hard time believing
that AC fields 100 times weaker are all that bad.

AL N1AL

------------------------------

Date: 19 Mar 91 00:27:22 GMT
From: swrinde!zaphod.mps.ohio-state.edu!samsung!rex!uflorida![e-mail]
Subject: FT-411
To: [e-mail]

Does anyone know of the AM Aircraft mod for the FT-411.  I know it exists
because there was a gentlemen at a Hamfest offering this   Also
I am interested in a mods FTP site if anyone knows of one.   Thank you
in advance       -JON     KC4NWK

------------------------------

Date: 15 Mar 91 19:40:42 GMT
From: hpl-opus!hpnmdla![e-mail]
Subject: Fun with Balloons and long wires!
To: [e-mail]

Be aware that even a mild wind will cause a baloon-supported "vertical"
to not live up to its name. :=)  If you use helium, be sure to get a
baloon made of impermeable material.  I have found that the surplus
weather baloons lose their helium in a few hours.

AL N1AL

------------------------------

Date: 13 Mar 91 15:41:11 GMT
From: world!ksr![e-mail]
Subject: Ham Trader Yellow Sheets?
To: [e-mail]

[e-mail] (Dean Youngquist) writes:
I have issue #3A-91 in front of me here.
>I have these addresses for the ham trader yellow sheet:
> Ads & Subscriptions with ads to ->      P.O. Box 10253
>                     Sarasota, FL 34232
Zip code should be ---------------------------------->34278
and this address is good until the beginning of April, when the guy who
does it moves back to Illinois for the summer.  Unfortunately, they don't
list that address on the winter copies...

>       Subscriptions without ads ->      P.O. Box 15142
>                     Seattle, WA 98115

This one is correct.

------------------------------

Date: 18 Mar 91 23:19:37 GMT
From: sun-barr!newstop!west![e-mail]
Subject: HR 2600
To: [e-mail]

I posted afew weeks ago asking if any of you had any Mods for
the Uniden HR 2600, so far I have yet to get any reply. What
I have gotten were alot of requests to pass on any info I get.
So please if you know of any e-mail and I will post a summary

Thanks
Stan,kb6rqz

PS: The return in the header is incorrect it should be

        [e-mail]

------------------------------

Date: 14 Mar 91 12:51:52 GMT
From: dog.ee.lbl.gov!hellgate.utah.edu!caen!zaphod.mps.ohio-state.edu!think.com!linus!linus!mwunix.mitre.org![e-mail]
Subject: Icom CI V interface specs?
To: [e-mail]

I am looking for the spec for the Icom CI V computer interface, specifically
for the 735.  Looks like it might be fun to play with.  Please e-mail replies.

------------------------------

Date: 18 Mar 91 19:49:39 GMT
From: agate!stanford.edu!leland.Stanford.EDU![e-mail]
Subject: Looking for High Voltage Capacitors
To: [e-mail]

I am desparate need of some high voltage capacitors (4-6KV) 5pF.
Since the demise of the vacuum tube nobody seems to make these anymore.
Does anyone know of a source for these and other HI-Voltage Capacitors.


Thanks

John J. Stankus  N5PEE            Dept. of Chemistry
[e-mail]             Stanford University

------------------------------

Date: 14 Mar 91 21:09:56 GMT
From: sdd.hp.com!zaphod.mps.ohio-state.edu!ub![e-mail]
Subject: Looking for Old Manuals
To: [e-mail]

I'm trying to locate the Tech/User manuals of an old HRO-60 comm. receiver
(manuf. National Radio Co.) It seems the company's gone out of business.
The receiver's in a bad shape, but a friend wants to put it together.


Q.1 : Are there any shops that keep such manuals, and if so, could someone
      please send me the addresses, etc.?

Q.2 : Would anyone on the net be having these manuals ? I'd appreciate if a
      kind soul could send me a copy. I'll bear all costs.


Thanks in advance...

73,

Ajay

------------------------------

Date: 14 Mar 91 22:00:10 GMT
From: gatech!udel!haven!umbc3!gmuvax2![e-mail]
Subject: magnetic antennas for HF
To: [e-mail]

Hi,
    I am looking for pointers to companies selling magnetic antennas for
HF (loop or loop-stick.)  Automatic tuning would be preferable but is
not necessary.  The only place I could think of was Palamar Engineering,
and they are closed for a vacation.  Any guidance would be appreciated.

Thanks,

Alan  (:^|

------------------------------

Date: 15 Mar 91 16:40:24 GMT
From: hpfcso!hplvec![e-mail]
Subject: Mailing lables
To: [e-mail]

Call up your favorite 1-800 software distributor and ask for the
Avery LabelPro package.  It'll probably run you about $45-$55.
User interface leaves a lot to be desired, but it will do just
what you want.  It can even put little pictures (clip-art) on
the labels.

------------------------------

Date: 22 Mar 91 09:11:08 GMT
From: [e-mail]
Subject: MAJOR SOLAR FLARE ALERT - 21 MARCH - TWO EVENTS
To: [e-mail]

                        --  MAJOR SOLAR FLARE ALERT  --

                                MARCH 21, 1991

                              Flare Event Summary
                          Potential Impact Assessment


                                    --------



MAJOR ENERGETIC EVENT SUMMARY

     Two major flares erupted from Region 6555 on 21 March.  The first
began at 20:17 UT, peaked at 20:31 UT and ended at 20:34 UT on 21 March.
It was located at S13E29 and attained a class X1.0/1N rating.  It was
associated with rather weak radio bursts and had a low integrated x-ray
flux.  This event was impulsive.  No sweeps were observed.

     The second major flare began at 23:35 UT, peaked at 23:44 UT on 21
March, and ended at 00:01 UT on 22 March.  This event attained a class
M5.4/2B rating and was associated with a fairly strong Type IV event.
However, this flare was impulsive as well.

     Region 6555 (now located at S24E30) remains impressive and is the
largest and most complex region currently visible.  Spot counts have
increased to 75 in this region, which still maintains a magnetic beta
configuration.


POTENTIAL TERRESTRIAL IMPACT ASSESSMENT

     The first major flare (the X-class event) will not have a terrestrial
impact.  It was a high-amplitude event in x-rays, but has not produced any
significant radio emissions and was quite impulsive.

     The second major flare is still being studied and the potential
impacts will not be fully known until later on 22 March.  It presently
appears as though a small risk exists for a light terrestrial impact
(mostly over the higher latitudes) sometime on 24 March.  However, this
flare was not radio rich.  The only truly noteworthy phenomena associated
with this flare was the moderate to strong intensity Type IV which
accompanied the flare.  The integrated x-ray flux of this flare was low.
So there is a higher probability that no terrestrial impacts will be
observed.  A more accurate assessment will be released on 22 March after
all of the data has been analyzed.

     Isolated major flaring will likely continue from Region 6555 over the
next 24 to 72 hours.  Minor M-class flaring will certainly continue at a
fairly frequent rate.  Associated minor SIDs/SWFs could cause momentary
disruptions in HF radio communications.  A total of seven SID's/SWF's were
observed (some are unconfirmed at the present time) on 21 March, associated
with the fairly frequent M-class flaring from Region 6555.

     A period of minor geomagnetic storming occurred between 12:00 UT and
15:00 UT over middle latitudes.  This period was preceded by a sudden impulse
which occurred near 06:00 UT on 21 March over some middle latitude stations.
Locally, the only significant perturbation occurred at 13:45 UT and was
rated as a minor storm level fluctuation with a fairly rapid rise-time and
slow decay.  High latitudes experienced active to severe storming during
this period.  Some high latitude auroral storming was also noted in
conjunction with this increased geomagnetic activity.  It is difficult to
pinpoint the cause of this activity, as there were several events which may
have been responsible.  However, at the present time, it appears as though
the major class M6.7/2B flare of 19 March is most likely responsible.  Auroral
activity remained confined to the high and northerly middle latitudes.  HF
radio conditions during this period of storm activity was degraded to
generally poor levels over middle latitudes and very poor levels over the
high latitudes.  Conditions improved rapidly after 16:00 UT, as did
geomagnetic activity over the middle latitudes.

     A bulletin stating the potential impacts of the last major M-class
flare will be issued later on 22 March.  The POTENTIAL MAJOR SOLAR FLARE
WARNING and the POTENTIAL SATELLITE PROTON EVENT WARNING remain in effect.
Geomagnetic activity should remain at unsettled to active levels over the
next 24 hours.  Auroral activity will remain at low to moderate levels over
the middle and/or northerly middle latitudes on 22 March, with moderate to
high levels of activity likely over the high latitudes.  Low latitudes will
not witness any auroral activity.


**  End of Alert  **

------------------------------

Date: 22 Mar 91 19:57:23 GMT
From: [e-mail]
Subject: MAJOR SOLAR FLARE ALERT - 22 MARCH - STRANGE TYPE IV WITH 21 MARCH
To: [e-mail]

                        --  MAJOR SOLAR FLARE ALERT  --

                                MARCH 22, 1991

                              Flare Event Summary
                          Potential Impact Assessment


                                    --------



MAJOR ENERGETIC EVENT SUMMARY

     Another major flare erupted from Region 6555 at a location of S25E35.
This event began at 08:33 UT, peaked at 08:40 UT and ended at 09:19 UT on
22 March.  There was a tenflare with this event, rated at 870 s.f.u..
Also, a 245 MHz burst was observed at an intensity of 12,000 s.f.u.  No
sweeps were observed.  The flare was fairly impulsive and had a low
integrated x-ray flux.  The event attained a class M6.3/1B rating.


POTENTIAL TERRESTRIAL IMPACT ASSESSMENT

     No terrestrial impacts are expected with this latest major flare.  It
had some moderately strong radio emissions but was not associated with any
sweeps and was an impulsive event.

     The most strange event which is really turning heads is the major
class 5.4/2B flare of 21 March (at 23:44 UT).  This event was not
particularly unusual as far as the flare itself goes, but the radio
emissions observed were very odd indeed.  The flare was associated with a
strong Type IV emission which drifted from low to high frequencies (it
should have been the other way around).  The emission increased in
intensity with time and reached very brilliant levels.  The event is STILL
IN PROGRESS at the time of this writing.  It has been categorized a
continuum Type IV emission.  It is perhaps one of the strangest emissions
observed in seven years.  Something is vigorously exciting the electrons
over that region, but no one knows what it might be.  The flare itself was
not extraordinary.  In fact, it was rather "average".

     There is a possibility that a Type II could have occurred with the
23:44 UT flare of 21 March.  There is uncertainty regarding this due to the
fact that the Type IV drifted from low to high frequencies and may have
"swallowed" the Type II emission.  So it is certainly possible that a Type
II could have occurred with this event (it would normally be observed with
a Type IV continuum emission as intense as this one has been).

     This event is very difficult to assess as far as potential terrestrial
impacts are concerned.  The flare itself was impulsive and of rather low
intensity.  But the wierd long duration Type IV continuum emission together
with the possible occurrence of a Type II is raising questions.  We
currently believe that a low to moderate risk exists for increased terrestrial
activity late on 23 March or on 24 March.  There is a slightly higher
probability that no terrestrial impacts will occur, but these predictions
are not associated with high confidence levels.  A Potential Geomagnetic
Storm Warning may be issued on 23 March just to cover the "bases."
Analysis of this odd event will continue.

     Major flaring is expected to continue from Region 6555.  Terrestrial
impacts from very energetic flaring could be high.  Watch for future alerts
and possible warnings.


**  End of Alert  **

------------------------------

Date: 18 Mar 91 00:32:35 GMT
From: munnari.oz.au!mullian.ee.mu.OZ.AU![e-mail]
Subject: Morse
To: [e-mail]

I have just become interested in amateur radio.  The theory for exams
doesn't appear to be a problem.  However, I need to teach myself morse
and as a result I am looking for a computer program for an IBM that
teaches morse code.

Cheers Larry.

------------------------------

Date: 13 Mar 91 20:56:47 GMT
From: sdd.hp.com!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cunixf.cc.columbia.edu!cunixb.cc.columbia.edu![e-mail]
Subject: non-11m 'CB' bands
To: [e-mail]

In article <[e-mail]> [e-mail] (Mike Waters) writes:
>In article <[e-mail]> [e-mail] writes:
>>
>>I have recently found out that frequencies in the 72-75Mhz and ~462-467Mhz
>>ranges are considered "CB".

What license is needed to use these frequencies?
 * * * * * * *  ======================= Meir Green
* * * * * * * * ======================= [e-mail]
 * * * * * * *  ======================= N2JPG

------------------------------

Date: 15 Mar 91 21:47:01 GMT
From: edsews!edsdrd![e-mail]
Subject: Novice exam study material
To: [e-mail]

Please excuse me if this is a frequently asked question. I'd like to
get into amateur radio, and was wondering if anyone has recommendations
for study guides for the amateur class.  I've seen the Radio Shack
course and know that ARRL has one.  Email responses and I'll post a
summary.  Thanks.

----

Gary Schiltz
EDS Research and Development
[e-mail]

------------------------------

Date: 15 Mar 91 10:49:13 GMT
From: mcsun!ukc!vision!mgc![e-mail]
Subject: Orbital Predictions for Unix
To: [e-mail]

Does anyone have sources for PD/Shareware that will perform orbital predictions
on Unix? Preferably taking the standard NASA kepler postings as input.

I seem to remember a program/package called 'orbit'.

Thanks in advance

--
Dave Lockwood          [e-mail]
Head of Technology     ...!uunet!mcsun!ukc!vision!mgc!dave

MG Computer Systems Ltd, PO Box 50, Doncaster, DN4 5AW [phone]

------------------------------

Date: 18 Mar 91 23:45:01 GMT
From: sun-barr!newstop!west![e-mail]
Subject: Sony 2001
To: [e-mail]

Posted afew weeks ago asking if anyone had any Mods for the
Sony 2001, so far no replies. What I did get were alot of
requests to pass on any info I get. Also I compared it to
a Kenwood TS 430 on the same antenna and the Sony could only
get about 50% of the stations, is this normal? Thanks.

Stan,kb6rqz

PS: the address in the header is wrong, send e-mail to

        [e-mail]

------------------------------

Date: 14 Mar 91 14:58:11 GMT
From: hpfcso!hpfcdj![e-mail]
Subject: TH-77A hum in TX audio
To: [e-mail]

I have not noticed a problem with hum on my TH-77A.  My serial number is
20705334.  Can you tell me which resistor they said to change, and to what
value?  I would like to know this for future reference, should the problem
ever come up.

Thanks,
Andy Goris   AA0CM         [e-mail]

------------------------------

Date: 13 Mar 91 21:15:32 GMT
From: sdd.hp.com!spool.mu.edu!sol.ctr.columbia.edu!cunixf.cc.columbia.edu!cunixb.cc.columbia.edu![e-mail]
Subject: TH-77 mods
To: [e-mail]

In article <[e-mail]> [e-mail] (Meir) writes:
....
Don't forget to reset the CPU when you are done!
 * * * * * * *  ======================= Meir Green
* * * * * * * * ======================= [e-mail]
 * * * * * * *  ======================= N2JPG

------------------------------

Date: 22 Mar 91 15:23:54 GMT
From: [e-mail]
Subject: WEATHER FAX ON PC'S
To: [e-mail]

I am looking for hardware/software solutions to receiving weather fax
on PC's. What I need the hardware/software to do is receive HF weather
charts from broadcast and/or landline. Some other criteria that I need
to be met is that the system must be able to receive and save weather
fax charts and to automatically save the individual charts to files
without operator intervention. The system must be able to selectivly
pick the charts it wants to save to file. The system must be able to
run in background and to be able to print out a file while receiving
incoming charts.

If any one out there has any info you can get me at [e-mail]

/Dwight/

------------------------------

Date: 21 Mar 91 11:22:41 GMT
From: [e-mail]
Subject: Yaesu FT-470 Mods
To: [e-mail]

Is there a way for the 470 to receive in the 800 Mhz range?

Thanks.

Scott [Internet: [e-mail]]

------------------------------

End of Info-Hams Digest
******************************