QRZ! Ham Radio 4/QRZ Ham Radio Callsign Database - Volume 4.iso/digests/infoham/940298.txt

Internet Message Format | 1994-11-13 | 25KB

Date: Wed, 16 Mar 94 23:36:33 PST
From: Info-Hams Mailing List and Newsgroup <[e-mail]>
Errors-To: [e-mail]
Reply-To: [e-mail]
Precedence: Bulk
Subject: Info-Hams Digest V94 #298
To: Info-Hams


Info-Hams Digest            Wed, 16 Mar 94       Volume 94 : Issue  298

Today's Topics:
                                (none)
                     10 GHz EME question (3 msgs)
                            1x1 Callsigns?
                   2 meter use in London, England?
                              Alinco 180
                          Looking for KA2ZNB
                             Net Schedule
                               Part 97
           Sorting the confusing between World and Oakland
                          Tickling the Ether

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: 17 Mar 94 05:30:16 GMT
From: [e-mail]
Subject: (none)
To: [e-mail]

(*
To All hams interested.

  I said a long time ago that I would release this source code. Well, here
  it is! It does work rather well, and in fact, better than the phone!
  I am currently developing a ** FREE ** repeater controller package
  around this idea, along with voice mail and the like, but, I am in
  need of some more assistance. Is anyone interested in helping me out with
  some ideas? I just need a jump start, and I would prefer to have some
  source assembler code for another repeater controller.

  Not too long ago, I saw such a program, but lost it (and the BBS is down!)
  Please, if you can help me out, drop me a line via the internet address
  given below (It is hard for me to read this newsgroup; just send me a note).

  Thanks,
  Jim (N9IEO)
  internet: [e-mail]

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

   DTMF Touch Tone Generator
   Written by: Jim Jacobsen (N9IEO)  ([e-mail])
   This program uses the Sound Blaster FM chips to generate Touch Tones

*)

Unit SBlaster;
Interface
Uses Dos;

Procedure Generate_tone(c1,c2: word);
Procedure Release_tone;
Procedure touchtone(c: char);
implementation

Const
   tns: array[1..8] of word = (920,1019,1586,1640,1824,1905,2004,2590);

Var
  r1,r2: word;

(* This is an internal function to write a tone to the adlib/sound
   blaster card *)

Procedure Writeport(reg,val: word);
var i,c: word;
Begin
  port[$388]:=reg;
  for i:=1 to 12 do c:=port[$388];
  port[$389]:=val;
  for i:=1 to 30 do c:=port[$388];
end;

Procedure Generate_tone(c1,c2: word);
Begin

 writeport($b3,$2f); writeport($b4,$2f);
 writeport($e0,0);   { Set Wave for voice 1 }
 writeport($e1,0);   { Voice 2 }
 writeport($c0,1);   { Use Additive Synthesis }
 writeport($c1,1);
 writeport($20,1);   { Multiple - 1 }
 writeport($21,1);
 writeport($40,$1);  { Level - 0 Highest }
 writeport($41,$1);
 writeport($60,$f0); { Attack / Decay }
 writeport($61,$f0);
 writeport($80,$Ff); { Sustain / Release }
 writeport($81,$Ff);
 writeport($a0,c1 and $ff);  { Note # }
 writeport($a1,c2 and $ff);
 writeport($b0,$30 or (c1 shr 8)); { Note on, Octave }
 writeport($b1,$30 or (c2 shr 8));
 r1:=c1 shr 8; r2:=c2 shr 8;
end;

(* This procedure silences the tones *)

procedure release_tone;
Begin
 writeport($b0,r1);
 writeport($b1,r2);
end;

(* This procedure is used to generate DTMF tones, use the valid DTMF
   digits *)

procedure touchtone(c: char);
var
  w1,w2: word;

Begin
   c:=upcase(c);
  if c in ['0'..'9','A'..'D','#','*'] then
  begin
   case c of
     '1','4','7','*': w1:=tns[5];
     '2','5','8','0': w1:=tns[6];
     '3','6','9','#': w1:=tns[7];
     'A'..'D':        w1:=tns[8];
   end;
   case c of
     '1','2','3','A': w2:=tns[1];
     '4','5','6','B': w2:=tns[2];
     '7','8','9','C': w2:=tns[3];
     '*','0','#','D': w2:=tns[4];
   end;
   generate_tone(w2,w1);
  end;
end;

end.

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

Date: Wed, 16 Mar 1994 17:10:07 GMT
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!europa.eng.gtefsd.com!emory!wa4mei!ke4zv![e-mail]
Subject: 10 GHz EME question
To: [e-mail]

In article <16MAR94.10615803.0021.MUSIC@SLUMUS> [e-mail] (Michael Owen) writes:
>The Toronto VHF Society (VE3ONT) is beginning to make
>plans for EME operations using the 46 m (150') dish at
>Algonquin Park later this year.
>
>We have been discussing the possibility of trying EME on
>10 GHz.  The dish is figured to at least 12 GHz, and is
>adequately steerable.  The question is this: is there any
>point to using such a big dish at 10 GHz for EME?  One
>argument says "yes, the gain will be humungous."  Another
>argument says "no, the high gain of the dish will under-
>illuminate the Moon so there is no *real* monster gain."
>
>I subscribe to the latter point of view.  It seems to me that
>an antenna beamwidth of < the Moon's diameter doesn't benefit
>the overall link budget.  By this argument, 10GHz EME is
>optimum with a dish about 4m in diameter (beamwidth about 0.5
>degrees, the apparent width of the Moon).  The 46 m dish will be
>no better than a 4 m dish.
>
>So... am I correct?

I don't think so. The libration fading will be much reduced by
illuminating a smaller portion of the Moon. And gain is gain,
the extra gain will be usable for transmit. For receive it's
a somewhat different matter. Stations using small dishes will
be illuminating the entire lunar hemisphere. Your dish will
only receive part of that energy since the rest will fall outside
your beamwidth. But the extra dish gain should compensate for
that, and your receive strength should be similar to that of
a dish that just illuminates the entire Moon. And, you'll receive
less thermal noise from the rest of the Moon, and less libration
fading. So while the big dish won't be that much better for receive,
it won't be worse, and on transmit it will be a big help to other
stations because it's reflected signal will behave more like a
strong point source.

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: 16 Mar 1994 20:33:03 +0200
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!EU.net!sunic!news.funet.fi!news.cc.tut.fi!lehtori.cc.tut.fi![e-mail]
Subject: 10 GHz EME question
To: [e-mail]

Michael Owen  ([e-mail]) wrote:

> The Toronto VHF Society (VE3ONT) is beginning to make
> plans for EME operations using the 46 m (150') dish at
> Algonquin Park later this year.

> We have been discussing the possibility of trying EME on
> 10 GHz.  The dish is figured to at least 12 GHz, and is
> adequately steerable.  The question is this: is there any
> point to using such a big dish at 10 GHz for EME?  One
> argument says "yes, the gain will be humungous."  Another
> argument says "no, the high gain of the dish will under-
> illuminate the Moon so there is no *real* monster gain."

Assuming similar reflective properties of the lunar soil in the
optical band and in the SHF band no monster gain should be expected.
Look at the Moon during opposition (full Moon), the highlands in
the center of the lunar disk are as bright as the higlands near the
periphery of the disk. Thus no benefit should be expected from
concentrating all radiation on a small spot in the highland area
of the Moon and no net gain should be expected. (When the Moon is
in opposition, the light from the Sun illuminates the lunar surface
from the same direction as an EME transmitter).

On the other hand, if the illuminated spot size on the Moon is much
smaller than the lunar diameter and the antenna can be controlled
precisely, you could avoid low reflectivity (Mare-) areas. Thus the
effective reflectivity is higher and you would get some net gain.

If the receiver is sensitive enough so that you can hear the thermal
noise from the Moon, the antenna should be aimed at the coldest
part of the surface, to areas where the Sun is going to rise in a few
days. These areas have been in darkness for allmost two weeks.
This should be tried before the Moon is in the first quarter,
so that the spot can be positioned based on other criteria and
not just the temperature.

Other things to investigate is how a small spot size affects libration
fading and coherence bandwidth when beamed at a flat area (Mares).

I would expect that the readability could be improved by lower noise
and lower signal distorsion/dispersion even if the received power
remains (allmost) the same.

                Paul OH3LWR


--------------------------------------------------------------------
Phone   : [phone]
X.400   : G=Paul S=Keinanen O=Kotiposti A=ELISA C=FI
Internet: [e-mail]
Telex   : 58-100 1825 (ATTN: Keinanen Paul)
Mail    : Hameenpuisto 42 A 26
          FIN-33200 TAMPERE
          FINLAND

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

Date: Wed, 16 Mar 1994 20:23:52 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!wupost!gumby!newsxfer.itd.umich.edu!ncar!csn!col.hp.com!srgenprp![e-mail]
Subject: 10 GHz EME question
To: [e-mail]

Michael Owen ([e-mail]) wrote:
: The Toronto VHF Society (VE3ONT) is beginning to make
: plans for EME operations using the 46 m (150') dish at
: Algonquin Park later this year.

: We have been discussing the possibility of trying EME on
: 10 GHz.  The dish is figured to at least 12 GHz, and is
: adequately steerable.  The question is this: is there any
: point to using such a big dish at 10 GHz for EME?  One
: argument says "yes, the gain will be humungous."  Another
: argument says "no, the high gain of the dish will under-
: illuminate the Moon so there is no *real* monster gain."

: I subscribe to the latter point of view.  It seems to me that
: an antenna beamwidth of < the Moon's diameter doesn't benefit
: the overall link budget.  By this argument, 10GHz EME is
: optimum with a dish about 4m in diameter (beamwidth about 0.5
: degrees, the apparent width of the Moon).  The 46 m dish will be
: no better than a 4 m dish.

I disagree.

Illuminating the center of the moon is more effective than the edges.
A surface radiates maximally in the perpendicular direction.  I believe
the radiation falls off as the cosine of the angle, or even faster
depending on surface type.  This happens on both transmit and receive.
Since the edges of the moon point away from the earth, much of that
power is wasted.

Assuming the 46m dish has SQRT(4/46) = .3 times the beamwidth of the
4 meter dish, then that may result is a fairly optimum illumination
of the moon.  It should help reduce libration fading as well.

AL N1AL

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

Date: 16 Mar 1994 19:57:13 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!howland.reston.ans.net!math.ohio-state.edu!news.acns.nwu.edu!casbah.acns.nwu.edu![e-mail]
Subject: 1x1 Callsigns?
To: [e-mail]

In article <[e-mail]>, Jim Hollenback <[e-mail]> wrote:
>Bob Levine ([e-mail]) wrote:
>: Has anyone seen anything in print about whether the vanity
>: callsign program (someday) might allow 1x1 calls?
>
>: (for info, a 1x1 is like K1X)
>
>
>No, but I've heard ther is a 2X1 ... JY1
>
>Jim, WA6SDM
>


That's 2x0, but I think you have to be royalty to get it :-)

Greg, KD9AZ

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

Date: 16 Mar 1994 18:11:39 -0000
From: news.cerf.net!pravda.sdsc.edu!acsc.com!wp-sp.nba.trw.com!elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!convex!news.utdallas.edu!corpgate!bnrgate!bnr.co.uk!pipex!uknet!acorn!@ihnp4.ucsd.edu
Subject: 2 meter use in London, England?
To: [e-mail]

In article <2m7dmi$[e-mail]> [e-mail] (Eric L. Bartholomew) writes:
>
>
>Most repeaters in Europe, including the UK, require a 1750 Hz
>tone burst at the beginning of your transmission to access the
>repeater.  European ham gear usually include the tone burst as
>a standard feature, but your american gear will not have this
>feature.

UK repeaters are moving toward responding to CTCSS tones as well
as a 1750Hz toneburst. The CTCSS tone is allocated by area in a
system that almost, but not completely, fails to stop the users
of other repeaters (on the same frequency) accessing both under
lift conditions. The tone in use is announced by a single letter
tacked onto the end of the repeater's CWID - sorry, I forget the
encoding scheme. Some repeaters also transmit the same tone when
their input is unsquelched, so if your radio permits you may be
able to scan the tones until you detect the one in use.

UK repeaters aren't allowed to use CTCSS to limit access to
a closed user group - only to reject interference.

>
>Prehaps you could install the burst encoder in a speaker/mic,
>eliminating the need to perform surgery on your HT.  Communication
>Specialists of California sells a sutiable tone burst board,
>you can get their 800 number out of any of the ham mags.
>

UK hams who own ex-PMR gear and can't be bothered to add a toneburst
board acquire the ability to whistle at 1750 Hz - this isn't really
very hard, as most repeaters aren't too fussy : a slowly rising
whistle will usually do the job.

-adrian, g7hwn

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

Date: 16 Mar 1994 21:20:05 GMT
From: ihnp4.ucsd.edu!swrinde!emory!news-feed-2.peachnet.edu!concert!lester.appstate.edu![e-mail]
Subject: Alinco 180
To: [e-mail]

I have an Alinco 180 (?) 2 meter HT and can't figure out how to enable
the extended receive.  Does anyone out there know?  I can't remember.

                        KE4FPZ

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

Date: Mon, 14 Mar 1994 18:04:58 GMT
From: hub.cs.jmu.edu!hearst.acc.Virginia.EDU!cscsun![e-mail]
Subject: Looking for KA2ZNB
To: [e-mail]

Wilfried Besig ([e-mail]) wrote:
: Hi,
: I am looking for the location of KA2ZNB, who lived in Cape Cod previously.
: The address in the NA-callbook seems not to be updated.
: Does anybody know him?
: We had many 2m QSOs when he has been in Germany. But now we have lost the
: connections.
: My former callsign was Y21DK , now I am DG0OD.
: 73,and thanks for reading this message.

I get:
  David A. Pillsbury
 HHC 54TH ENGR BN
 APO NY, NY 09026

Is that the same address that's in the callbook?
It would seem he's in the military with an address like that.  Heaven knows
where he really is.  If he's still in the service, they'll forward his mail
to him.
--
David Tiller           | Network Administrator | Voice: [phone]   |
[e-mail]        | Randolph-Macon College| Fax:   [phone]   |
"Drunk, [Beowulf] slew | P.O. Box 5005         | ICBM:  37d 42' 43.75" N |
no hearth companions." | Ashland, Va 23005     |        77d 31' 32.19" W |

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

Date: Tue, 15 Mar 1994 11:10:04 GMT
From: netcon!hatch!pro-palmtree!pro-janin![e-mail]
Subject: Net Schedule
To: [e-mail]

         *****  Propagation Schedule  *****              Updated: 21 Jan 1994



UTC   W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 XE VE 6Y
----  ------------------------------------------------------------------------
0100
0200
0300
0400
0500
0600
0700
0800
0900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
-------------------------------------------------------------------------------

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

Date: 16 Mar 1994 21:16:56 GMT
From: ihnp4.ucsd.edu!swrinde!emory!news-feed-2.peachnet.edu!concert!lester.appstate.edu![e-mail]
Subject: Part 97
To: [e-mail]

Is there a way I can get a copy of the revised Part 97 via e-mail?

                    Shawn Watkins
                    KE4FPZ

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

Date: Wed, 16 Mar 1994 20:47:45 GMT
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!math.ohio-state.edu!magnus.acs.ohio-state.edu!csn!csus.edu!netcom.com![e-mail]
Subject: Sorting the confusing between World and Oakland
To: [e-mail]

I have received many questions about where the ham radio FTP files are -
World or Oakland?

When I posted the message about the switchover from World to Oakland, I'd
completely forgotten about the automated period reminder about the file
availability on World.

I have modified that periodic reminder, and will have it replace the one
mentioning World.  It will, instead, mention Oakland.

Sorry for any confusion or inconvenience this may have caused.

Scott Ehrlich, WY1Z


--
===============================================================================
| Scott Ehrlich           Amateur Radio: wy1z      AMPRnet: [e-mail] |
| Internet: [e-mail]   BITnet: wy1z@NUHUB    AX.25: [e-mail] |
|-----------------------------------------------------------------------------|
|       Maintainer of the Boston Amateur Radio Club hamradio FTP area on      |
|            oak.oakland.edu:/pub/hamradio                    |
===============================================================================

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

Date: 16 Mar 1994 17:18:15 GMT
From: malgudi.oar.net!gomer.aldus.com![e-mail]
Subject: Tickling the Ether
To: [e-mail]

In article <[e-mail]> [e-mail] (Greg Bullough) writes:
>[a very nice narrative]

Thanks, Greg. What a refreshing improvement to the signal-to-noise ratio.

David Mitchell
   Aldus Corporation      Bainbridge Ometepe Sister Islands Association
[e-mail]               [e-mail]
My opinions are my own.

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

Date: Wed, 16 Mar 1994 19:45:52 GMT
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!math.ohio-state.edu!magnus.acs.ohio-state.edu!csn!col.hp.com!fc.hp.com![e-mail]
To: [e-mail]

References <2m09j7$[e-mail]>, <2m78pf$[e-mail]>, <[e-mail]>
Reply-To : [e-mail]
Subject : Re: 1x1 Callsigns?

: Calls is UAE *COULD* be anything that the competent authority decides to
: issue : that *begin with* A6. Who said that there HAS to be a number
: following the : prefix? 'Mandatory number' is something that you appear
: to have invented.

: Yes, your callsign prefix is 'N', and the reason it's followed by a '0' is
: simple beacuse the FCC decided it should be that way. According to callsign
: allocations for the USA, if the FCC had decided to issue you with the call
: 'NOTWITHSTANDING', then that would have been perfectly legal and acceptable,
: although perhaps not to you :-)
: Understand?
: Iain Philipps

As pointed out earlier in this string there are international agreements
on this subject. I'm not sure everyone would find NOTWITHSTANDING acceptable.
There are lots of exceptions though.  I have worked V7A a number of times
in contests recently. I've never exactly figured out what the Bamahas is up
too. They always use the whole C6A as the prefix.

Some of the newer third world countries will issue almost anything you want
it seems. But last year Mozambique dumped its C9(any thing you want) call
system for the C9#Xxx. So there does seem to be a effort to use the
international standard. Although it is true governments can issue most
anything the wish.

I'm not sure I understand.

Peace, Jay K0GU                 [e-mail]

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

Date: 16 Mar 1994 20:24:04 GMT
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!vixen.cso.uiuc.edu!newsrelay.iastate.edu!news.iastate.edu![e-mail]
To: [e-mail]

References <2m09j7$[e-mail]>, <2m78pf$[e-mail]>, <[e-mail]>re
Subject : Re: 1x1 Callsigns?

Check the international agreements.  By them, ham calls are to be a one or two
character prefix (can include numbers), a number (hence, the mandatory
number), and a one to three letter suffix (no numbers allowed).

Using this, UAE could not issue a call A6XX since their *prefix* is A6, not A.
However, they could use a call A6#XX.

>Yes, your callsign prefix is 'N', and the reason it's followed by a '0' is
>simple beacuse the FCC decided it should be that way. According to callsign
>allocations for the USA, if the FCC had decided to issue you with the call
>'NOTWITHSTANDING', then that would have been perfectly legal and acceptable,
>although perhaps not to you :-)

You are correct in the FCC assigning the 0, they could assign any number (1,
2, 3, etc), and the FCC just happens to use call-number districts.

Therefore, 'NOTWITHSTANDING' would *not* fit as there is not number, thus no
prefix or suffix.  (You have to have something to attach them to.)  It may be
legal, but it wouldn't be an acceptable ham call according to international
agreements.
--
Will Turner,  N0RDV         ---------------------------------------------
[e-mail]        | "Are you going to have any professionalism, |
[e-mail]    | or am I going to have to beat it into you?" |
[e-mail]    ---------------------------------------------

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

Date: 10 Mar 94 12:47:21 EDT
From: hayes![e-mail]
To: [e-mail]

References <[e-mail]>, <2l3nuj$[e-mail]>, <[e-mail]>
Subject : Re: JARGON

In article <[e-mail]>, [e-mail] (Gary Coffman) writes:
>
> Sure. Hams also talk about their operations and illnesses a lot. Old
> people tend to be sick a lot. And then there's the continuous blather
> about traffic. One rare ocasions you'll stumble across a group that
> actually will tackle interesting topics.

Gary, a lot of it has to do with what you find "interesting." When we get
older, perhaps we'll be spellbound to listen to descriptions of operations
and illnesses.

As for traffic -- I enjoy talking about traffic, Atlanta drivers, etc.

> Some hams have a life outside radio.
> For the last two mornings, the discussion on my repeater has
> centered on restoring old Dodge Powerwagons.

Yawn.

> We also freely discuss politics,

Sometimes interesting....

> Unix wizard tricks,

<Snore>

> and the merits of .410 shotshell derringers versus .22 Mag derringers as
> belly guns.

And don't forget pickup trucks. Yup, often the KE4ZV repeater becomes the
"trucks and guns" repeater. Even though it isn't in the "trucks and guns"
band.

> We try to keep the ham radio
> related discussions off-line and handle that at lunches and over the
> telephone. Seems somehow "business related" to talk about radio on
> the radio.

Depends on what you talk about.

For what it is worth, the KE4ZV repeater is kinda unique in that there's no
set "pattern" to operation. If you feel like making a comment, question or
just changing the subject, you just leap in and do it. There's lots of doubles,
and it keeps things interesting.

At least there's no boring roundtables. ("Well, I'll turn it to Joe. What
do you have to say this morning?" "Don't have much to say other than good
morning.... blah, blah, blah.")

Too bad other repeaters don't adopt this format.

--
Bill Coleman, AA4LR                ! Internet: [e-mail]
Principal Software Engineer        ! AppleLink: D1958
Hayes Microcomputer Products, Inc. ! CIS: 76067,2327
POB 105203 Atlanta, GA 30348 USA   !
Disclaimer: "My employer doesn't pay me to have opinions."
Quote: "The same light shines on vineyards that makes deserts." -Steve Hackett.

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

End of Info-Hams Digest V94 #298
******************************