QRZ! Ham Radio 5/QRZ Ham Radio Callsign Database - Volume 5.iso/digests/infoham/940461.txt

Internet Message Format | 1994-11-13 | 24.2 KB

Date: Wed, 27 Apr 94 09:35:11 PDT
From: Info-Hams Mailing List and Newsgroup <[e-mail]>
Errors-To: [e-mail]
Reply-To: [e-mail]
Precedence: Bulk
Subject: Info-Hams Digest V94 #461
To: Info-Hams


Info-Hams Digest            Wed, 27 Apr 94       Volume 94 : Issue  461

Today's Topics:
              Amplifier impedance (was SWR & Powre Loss)
                      Another use for Morse Code
                                CTCSS
                     Data transmission over radio
                   Dayton Room Available Thurs/Sat
               Drake L-4B amp & control cable questions
                            FCC computers
                             FT736r Mods
                    IPS Daily Report - 26 April 94
                     Last Minute Dayton Questions
                Looking for any and all info on LoJak
                          Looking for books
                 NEED INFO, Were you a Army radioman?
                       personal autopatch calls
                    Ten-Tec Address (or fax #) ???
The Confiscated HT Story (was Illinois anti scanner legisla) (2 msgs)
                    TheNet X-1J Release 2 is out!

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: Tue, 26 Apr 1994 13:10:23 GMT
From: ihnp4.ucsd.edu!swrinde!gatech!kd4nc!ke4zv![e-mail]
Subject: Amplifier impedance (was SWR & Powre Loss)
To: [e-mail]

In article <[e-mail]> [e-mail] (Tom Bruhns) writes:
>
>Sometimes it's fun to post little food-for-thought questions.
>
>Suppose I have a 100W power amplifier that uses something like
>beam power tubes in its output stage.  Suppose in addition it's
>being operated in a linear manner (so that superposition holds).
>Suppose also that any output matching circuit it contains is
>built from very high unloaded Q components--essentailly lossless.
>If I "look back into" the output terminals of this amplifier,
>I will "see" some real impedance, which I expect to be quite
>different than the load impedance that this amplifier is
>designed to operate into.  Suppose I connect a generator
>to the output connector of the amplifier and adjust the generator
>to deliver 1 watt into the impedance I "see" looking back into
>the amplifier.
>
>Exactly where do you expect that 1 watt to be dissipated?
>Why?  What effect will you see on the meters monitoring the
>power supply voltage and current of the amplifier?

Aside from the power lost in the circuit loss resistances, contacts,
wiring, tanks etc. The rest will buck and boost the tube static voltage
and current. Since the signal is symmetric, the net effect on the meters
will be nil, summed to zero by the mechanical inertia of the meters.
The signal really disappears into the energy storage of the power supply
decoupling circuit.

Gary
--
Gary Coffman KE4ZV          |    You make it,     | gatech!wa4mei!ke4zv!gary
Destructive Testing Systems |    we break it.     | uunet!rsiatl!ke4zv!gary
534 Shannon Way             |    Guaranteed!      | emory!kd4nc!ke4zv!gary
Lawrenceville, GA 30244     |                     |

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

Date: 27 Apr 94 00:29:54 GMT
From: dog.ee.lbl.gov!agate!darkstar.UCSC.EDU!cats.ucsc.edu![e-mail]
Subject: Another use for Morse Code
To: [e-mail]

Saw this today in the MIT-produced magazine Technology Review (May/June
1994 issue, page 18) under "Giving Disabled Kids a Start in Science"

"Another student who is unable to control either his hands or his head
uses a sip-and-puff device to communicate with the computer in Morse code,
blowing air out through a plastic straw for a dot and sipping air in for
a dash.  The device translates the Morse code into characters the computer
can understand.

"Such interfaces can be surprisingly efficient.  Students using mouthwands
and sip-and-puff devices can type 30 words a minute."
--
[e-mail]
[e-mail]

"Ya can talk all ya wanna, but it's dif'rent than it was!"
"No it aint!  But ya gotta know the territory!"
        Meredith Willson: "The Music Man"

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

Date: Sun, 24 Apr 1994 23:10:50 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!EU.net!sunic!psinntp!psinntp!gdstech!gdstech![e-mail]
Subject: CTCSS
To: [e-mail]

 Many Hams use CommSpec CTSS cards in their radios. These things
are small, good, and cheap (around $38). Excelent for older radios.
--
*-----------------------------------------------------------*
*     Pat Masterson   D12-25  | KE2LJ@KC2FD                 *
*     Grumman Data Systems    | 516-346-6316.               *
*     Bethpage, NY 11746      | [e-mail]     *

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

Date: 26 Apr 94 08:31:26 GMT
From: ihnp4.ucsd.edu!usc!cs.utexas.edu!convex!news.duke.edu!duke!wolves!psybbs![e-mail]
Subject: Data transmission over radio
To: [e-mail]

Jim -
One thought I have is to call your regional office of Motorola Comm. & Electronics, or call 1-800-555-1212 and ask for Radius or Motorola.  They offer about what you're looking for in a little two to four watt job about the size of a credit card  and about an inch or two deep.  R-NET or something like that.  If i still worked at a MSS I'd be able to get you more, but this should be a good start.

73,
Chuk Gleason,
KB4MDZ
(reply to [e-mail], I think but if you reply this route Errol will be a good guy and let me know)

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

Date: 26 Apr 1994 22:20:07 -0400
From: ihnp4.ucsd.edu!swrinde!gatech!udel!news2.sprintlink.net!news.sprintlink.net!redstone.interpath.net!mercury.interpath.net![e-mail]
Subject: Dayton Room Available Thurs/Sat
To: [e-mail]

I can not use my reservation for the Motel 6 across from Dayton Mall.
It is for Thurs, Fri and Sat....

All I am asking for is that you make reservations for me for next year.

!st email gets it or call [phone] from 8am-3pm tommorrow

thanks
ab4vj  ..
:wq

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

Date: Sun, 24 Apr 1994 23:07:51 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!EU.net!sunic!psinntp!psinntp!gdstech!gdstech![e-mail]
Subject: Drake L-4B amp & control cable questions
To: [e-mail]

 Some years ago, I also acquired an L4B which had been sitting
for many years. I did what the others all suggested; pull the tubes
and apply voltage slowly with a variac. Since I didnt know
how long it would take to reform the caps, I put 10 volts
into the line for a few hours. Then increased it by 10 every day
until full line voltage was going in. It ran each day for a few hors
while I was in the shack to watch it. Seems to have been a good idea,
the amp works great.
 Also, there was no control cable with mine. I drilled a small hole
2 inches away from the old socket, and put in an RCA phono socket.
Problem solved for 39 cents. -pat
--
*-----------------------------------------------------------*
*     Pat Masterson   D12-25  | KE2LJ@KC2FD                 *
*     Grumman Data Systems    | 516-346-6316.               *
*     Bethpage, NY 11746      | [e-mail]     *

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

Date: 26 Apr 94 21:33:01
From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!ncar!csn!news.usafa.af.mil!usafa2![e-mail]
Subject: FCC computers
To: [e-mail]

In article <[e-mail]> [e-mail] (Jeffrey Herman) writes:

   In article <2pce2c$[e-mail]> [e-mail] (Jason Hanson) writes:
   >
   >Whoa, slow down!  In your case, I'm confident a call to Gettysburg is
   >warrented.  But, I think Dan had a good point overall.  If one calls them, it
   >is time they are not entering licenses into the computer.  That's why they tell
   >you not to even think about it for 8-10 weeks.

   Oh come now, Jason! We're discussing our government here. The people
   answering the telephones were hired ONLY to answer phones. The people
   feeding the computers were hired ONLY to feed the computers. `Never
   the twains shall meet.'

   Jeff NH6IL

Jeff, Jeff, Jeff...I'm a bit disappointed in you.  Here at USAFA, I
answer the phones, run the computers (well, sort of :-) ), supervise
people, *and* make coffee.  No wonder I'm so tired all the time!

73 es aloha,

Jeff (the other NH6xx Jeff)
--
Jeff Miller,  NH6ZW/N0,  AFA5MJ   (ex WD6CQV, AFA1DO, AFA8JM, AFA1HE)
USAFAnet Manager and General Troubleshooter [[e-mail]] or
HQ USAF/DFYC, USAF Academy, CO 80840      [[e-mail]]
55: It's not a good idea, it's just the law.  E-mail for NMA info.

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

Date: 26 Apr 94 23:57:24 GMT
From: [e-mail]
Subject: FT736r Mods
To: [e-mail]

Hi Gang,
I have been told that there are mods for the Yaesu FT736r rig.  I have
located one (2m mod), but have been told that there are 6 or 8 other
mods available.  Anyone know where I might find these other mods?  Or,
would some kind ham, who has them, e-mail them to me or tell me where
I can get them via FTP.

73 de KB0LRB

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

Date: Tue, 26 Apr 1994 23:14:35 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!howland.reston.ans.net!EU.net!sunic!trane.uninett.no!nac.no!ifi.uio.no!wabbit.cc.uow.edu.au!metro!ipso![e-mail]
Subject: IPS Daily Report - 26 April 94
To: [e-mail]

SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 26/2330Z APRIL 1994 BY IPS RADIO AND SPACE SERVICES
FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY.
SUMMARY FOR 26 APRIL AND FORECAST UP TO 29 APRIL

IPS Warning 12 was issued on 26 April and is current
for interval April 29-May 11.
-----------------------------------------------------------

1A. SOLAR SUMMARY
Activity: very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number : 081/022

1B. SOLAR FORECAST
             27 April           28 April           29 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: quiet to unsettled

Estimated Indices : A   K           Observed A Index 25 April
    Learmonth       (07)  3121 ----
    Fredericksburg  06                          08
    Planetary       07                          07

Observed Kp for 25 April: 2221 1223


2B. MAGNETIC FORECAST
DATE      Ap    CONDITIONS
27 Apr    10    Quiet to unsettled.
28 Apr    20    Unsettled to active.
29 Apr    30    Active to minor storm.

2C. MAGNETIC COMMENT
Coronal hole disturbance expected April 29 - May 11.

3A. GLOBAL HF PROPAGATION SUMMARY
                LATITUDE BAND
DATE        LOW            MIDDLE         HIGH
26 Apr      normal         normal         normal
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
                LATITUDE BAND
DATE        LOW            MIDDLE         HIGH
27 Apr      normal         normal         fair
28 Apr      normal         fair           poor
29 Apr      fair           poor           poor
3C. GLOBAL HF PROPAGATION COMMENT
Conditions expected to remain normal until April 28, then
degraded comms conditions are expected.

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

4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUFs at Sydney were near predicted monthly values

Observed T index for 26 April:  45

Predicted Monthly T Index for April is 40.

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
DATE   T-index  MUFs
27 Apr    45    Near predicted monthly values.
28 Apr    45    Near predicted monthly values.
29 Apr    40    Near predicted monthly values.


4C. AUSTRALIAN REGION COMMENT
Degraded HF comms conditions expected after April 28.
--
IPS Regional Warning Centre, Sydney           |IPS Radio and Space Services
email: [e-mail]  fax: [phone]      |PO Box 5606
RWC Duty Forecaster   tel: [phone]      |West Chatswood NSW 2057
Recorded Message      tel: [phone]      |AUSTRALIA

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

Date: Thu, 21 Apr 94 19:52:09 GMT
From: tijc02![e-mail]
Subject: Last Minute Dayton Questions
To: [e-mail]



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

Date: 27 Apr 94 07:41:36 GMT
From: dog.ee.lbl.gov!ihnp4.ucsd.edu!pacbell.com!ohlone.kn.PacBell.COM![e-mail]
Subject: Looking for any and all info on LoJak
To: [e-mail]

Hah!  Rotsa Ruck.  The Lojak people are (IHMO) not going to want anyone
to know anything about their system just to make sure that the thieves
aren't going to defeat it.  I really don't think that you'll be able to
rush out and buy a schematic diagram and service manual at your local
electronics store.   Best of success, though.

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

Date: 23 Apr 94 04:52:13 GMT
From: agate!howland.reston.ans.net!wupost!uhog.mit.edu!news.media.mit.edu!news.media.mit.edu.![e-mail]
Subject: Looking for books
To: [e-mail]

>  When I was much younger I used to check out books from the library
>  that featured a teen age amateur radio operator whose call sign was,
>  to the best of my memory, k6atx.  The young hero lived in California
>  and had lots of adventures (along the lines of the Hardy Boys).
>  Usually he ended up being trapped by a drug smuggler, but always
>  escaped because of his knowledge of amateur radio.

k6atx?  Drug smuggler?  Are you sure the bad guys weren't making
hooch?  How old are you?  :)

Let us know if you find out what it was.

And has anyone read the more recent books of this genre?  They're
always hyping them in QST.

--Shawn

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

Date: 26 Apr 94 12:47:46 -0500
From: ihnp4.ucsd.edu!swrinde!gatech!howland.reston.ans.net!europa.eng.gtefsd.com!news.msfc.nasa.gov!cs.utk.edu!nntp.memst.edu![e-mail]
Subject: NEED INFO, Were you a Army radioman?
To: [e-mail]

HI FOLKS,
I'm not sure that this is the correct group to post this question to, but none
of the *.military.* groups seem correct correct either.  If this post offends
you, I apologize.  Now that I have cleared my conscience...

I'm looking for info & merchandise.

A friend of mine has this former USArmy bag that he "acquired" while attending a
Boy Scouts summer camp in west Tennessee (this was around the mid-80's).  There
were several others that were bagged (pun intended) by his partners in crime.

Until recently, we thought it had been a map bag, but a few weeks ago someone
told my friend that it was a bag for a field radio.  Either one seems
reasonable & I'm looking for both a definitive answer as to what it is and a
source for getting more of them because it's a really handy size.

Here's a description of it; the dimensions are approximations (ie: + or - 2"):
11" tall X 9" wide X 4" deep (front to back), olive drab w/ "US" dyed into to
cover flap (looks authentic), full height snap-close pockets on each end, a
small pocket on the front (flap cover only, no snap), pen holder(s?), two 1"
straps w/metal ends that wrap around (over the top, back to front) to secure
the cover flap, another 1" strap wraps around the sides & ties in the front
for a more secure closure, & there are metal grometts at the top of each end
for clipping on it's 3" web shoulder strap.  It's made of heavy fabric (not
canvas, though) & there is some kind of plastic-like lining (very deteriorated)
adhered to the inside.  There is some mostly illegible text printed on the
inside of the cover flap but a fairly distinct "1967" or "1969".

Can anyone verify what kind of bag this is & point me to a source for them?
I've scoured Army Surplus & many catalogs for 4 years & have yet to find a
twin.

E-mail preferred, but posting is OK.

Thanks in Advance!!!!!!!!
--
Ronald Jennings  Memphis State University


Ronald Jennings  Memphis State University

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

Date: 27 Apr 94 14:46:51 GMT
From: sdd.hp.com!hp-pcd!hpcvsnz![e-mail]
Subject: personal autopatch calls
To: [e-mail]

Mont Pierce ([e-mail]) wrote:

: ... the jest of the changes is as follows:
          ^You aren't kidding us, are you?  ;-)

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

Date: Thu, 21 Apr 1994 11:31:30 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!darwin.sura.net!ukma!ovation!ramcad.pica.army.mil![e-mail]
Subject: Ten-Tec Address (or fax #) ???
To: [e-mail]

I heard an interesting piece of news on our local repeater yesterday
about the fact that Ten-Tec now offers 2m amplifier KITS (Yay!) for
a reasonable price.

Sooo, I think I'll ask them for a catalog. Anyone out there have their
address, or preferably a fax number?

        Thank yew....

                          .... Mark E. Ellis <[e-mail]>
                               PA&TD Workplace Automation Group
                               Picatinny Arsenal, NJ

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

Date: 27 Apr 94 02:58:08 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!math.ohio-state.edu!cyber2.cyberstore.ca!vanbc.wimsey.com!deep.rsoft.bc.ca!giant![e-mail]
Subject: The Confiscated HT Story (was Illinois anti scanner legisla)
To: [e-mail]

[e-mail] (John W. Novotny) writes:
>Bill - I posted this a couple of months ago.  This is the last I've seen in the
>local paper.
>    This was the lead article in Tom Blair's column in the February 17,
>1994 edition of the San Diego Union-Tribune.
>    "In a new bit of tension between the Board of Supervisors and Sheriff
>Jim Roache, the board refused Tuesday to accept a gift to the Sheriff's Dept.
>and told the sheriff to return it.  The gift:  a portable ham radio used last
>August by a back-country bicyclist, Chris Boyer, to summon help for a
>seriously injured friend.  After sheriff's deputies responded to the
>emergency call, they told Boyer he had violated FCC rules by using restricted
>emergency frequencies and ordered him to surrender the improperly altered
>radio to them and the FCC.  To avoid further hassle, Boyer signed the radio
>over to the department as a gift.  But the supervisors, who honored Boyer in
>December as a good Samaritan, said no thanks this week.  They urged the
>sheriff to return the radio to Boyer."

I KNEW (I actually wished :) he was going to get it back. Now I hope
it doesn't take the Sheriff Office some years to do it, and not making
it difficult for Chris Boyer.  The tension of the above 2 groups exist
for many years, when I still lived in San Diego, or so I heard.

>            John        WA6ORO

David Tse
--
David Tse, VE7MDT   Internet: [e-mail]
I will prefer e-mail sent to above address.
My PO Box is CANCELLED, please do not use.

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

Date: Tue, 26 Apr 1994 21:16:49 GMT
From: telesoft![e-mail]
Subject: The Confiscated HT Story (was Illinois anti scanner legisla)
To: [e-mail]

In <[e-mail]> [e-mail] (William A. Kirsanoff) writes:
>Yes, it would appear that the San Diego Sheriff had no legal
>authority to confiscate the HT, but the department, with the aid of the
>local FCC Field Engineer, did succeed in coercing Chris to "voluntarily"
>donate his HT to the SD RACES rather than face prosecution. The last I
>heard, the San Diego County Supervisors voted to decline the "gift",
>although that part I have not been able to confirm. One thing that came out
>last year when this story was fresh that I did not note in my earlier post
>is that at about the same time as Chris used his HT on the Sheriff's
>frequency to summon aid, another person was causing malicious interference
>on Sheriff's frequencies. The word is that the two together greatly
>irritated the Sheriff and drove the coercive activity that relieved Chris
>of his HT.

There were two related circumstances that caused this to get blown out of
porportion a bit.  First, about two weeks before Boyer called in his
"emergency" on an SO frequency, there was another person who had been
jamming the SO frequencies using similar equipment, so they were
particularly sensitive at the time this happened.  Second, I have heard that
Boyer is an engineer for a local radio or TV station and he admitted in that
meeting with the FCC engineer that he had modified his amateur HT so he
could use it on his station's commercial UHF repeaters and that he regularly
used it on those frequencies.  I think this second item is why the FCC went
along with the SO in regard to confiscating the radio because it was not
type-accepted for that use.  I believe the radio is still in limbo
somewhere, but RACES never did get it.  Hopefully, Chris will get it back
someday.  I haven't heard much on this lately though.

--GaryM
--
Gary Morris                 Internet: [e-mail]  ([e-mail])
Alsys Inc.                  Packet:   KK6YB @ N0ARY.#NOCAL.CA.USA.NA
San Diego, CA, USA          Phone:    [phone] x128 (voice/fax)

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

Date: Tue, 26 Apr 94 17:12:59 PDT
From: ihnp4.ucsd.edu!usc!sdd.hp.com!col.hp.com!csn!news.sinet.slb.com![e-mail]
Subject: TheNet X-1J Release 2 is out!
To: [e-mail]

TheNet X1J Release 2 packet Node software.
==========================================

I have just uploaded the latest release of TheNet X-1J Release 2
to :-

oak.oakland.edu  /pub/hamradio/incoming

Dave (G8KBB) and myself (G0JVU) have been beta testing it for a
few weeks with a selected few sites around the world.

This release includes several new gadgets for X1J node operators
and users.

The node now supports four Analogue input ports:-

Port 1 is for the previously announced Deviation meter
Port 2 is for the new Signal strength meter addition
Ports 3 & 4 are general purpose input ports.

I have used port 3 for a temperature sensor and port 4 for a psu
voltage monitor in my local test nodes. I have included a document
(in MS WORD format) called HOTNCOLD.DOC for anybody who wishes to
attempt to add the temperature sensor to the node.

I would be happy to hear of any other uses these ports get used for
around the world.

There will be no PCB this time! Especially as ports 3 & 4 are user
defined!

Best of luck with the product.

73 Neville


My email is "[e-mail]" if needed.

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

Date: 27 Apr 94 14:47:15 GMT
From: sdd.hp.com!col.hp.com!fc.hp.com![e-mail]
To: [e-mail]

References <2pgjdf$[e-mail]>, <2pgnap$[e-mail]>, <[e-mail]>
Reply-To : [e-mail]
Subject : Re: Non-US callsign ID's

:(Jay Kesterson K0GU) writes:
:    But to answer the original question if you plan to work and 'QSL'
:    lots of DX stations a DX Callbook is a good investment.      ^^^

Joel B Levin ([e-mail]) wrote:
: Unfortunately, a lot of the DX you work is in the North American
: Callbook, which I don't have since I mostly use Internet reachable
: services for US and Canada callsigns.  Sigh.

Good point. I guess thats how they try to get you to buy both callbooks
with US listings so easy to access.

73, Jay K0GU                    [e-mail]

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

End of Info-Hams Digest V94 #461
******************************