two radios

John A. Ross, IV wb2k at ritz.mordor.com
Sun Sep 18 07:25:55 EDT 1994


>
>That CQ's ONLY purpose is to QRM anyone that happens to find my
>run frequency during my S&P QSO. Interpreted this strongly, its
>"deliberate interference" and therefore illegal as well as unethical.
>Since its commonly done, most folks clearly don't see it this way. Maybe
>someone can explain to mesome other purpose for that CQ?
>
>Wayne, W5XD
>

    I'd have to disagree with you on this one Wayne. The purpose of that CQ
on the run radio is to genuinely solicit another QSO.
    The whole purpose/intent of 2 radio operation is to allow you to
actually make 2 Qs simultaneously, while at the same time obeying the rule
that does not allow a single op to have more than one transmitted signal at
a time. Perhaps the following scenario will make it more clear:

Time          Radio1 (run)                         Radio2 (S&P)
00      TX: CQ Test de WB2K                 RX: QRZ de K3WW
03      RX: K2WK                            TX: WB2K
06      TX: K2WK 59 NJ                      RX: WB2K 59 EPA
09      RX: Also 59 NJ                      TX: 59 NJ
12      TX: QSL, QRZ WB2K                   RX: Tuning for next Q

    Thus you can see that you can make 2 Qs while never having both radios
in transmit. Of course the timing and talent to make this happen is what
makes it challenging. Nobody said it was easy...just possible.
73, John

------------------------------------------------------------------
John A. Ross, IV  - WB2K / VE2TJA [Zone 2]  (wb2k at ritz.mordor.com)
Bell Atlantic Business Systems Services
------------------------------------------------------------------

>From Wirzenius Jari <HATJWI at HATMAIL.HATFI1.msgw.kone.com>  Mon Sep 19 19:23:00 1994
From: Wirzenius Jari <HATJWI at HATMAIL.HATFI1.msgw.kone.com> (Wirzenius Jari)
Date: Mon, 19 Sep 94 11:23:00 PDT
Subject: RS232 problem
Message-ID: <2E7DD768 at msgw.kone.com>


Steve VS6WO wrote:

>We have blown out a number of RS-232 boards on computers due to 70 volt
>(210V/3) ground loops between the different phases.  The problem was solved 
by
>using a single circuit for all the computers and radios and running the 
amps
>off of different circuits.

There is an other possibility also to vaoid a problem like this. You can use 
optocouplers for RS232 lines between the rig and computer and between two 
computers. They are cheap and there ar ready built small modules available 
from computer shops.

73's Jari, OH2BVE
jari.wirzenius at hat-fi.kone.com


>From mbarts at vt.edu (Michael Barts)  Mon Sep 19 02:13:14 1994
From: mbarts at vt.edu (Michael Barts) (Michael Barts)
Date: Mon, 19 Sep 1994 07:13:14 +0600
Subject: RS232 problem

>Steve VS6WO wrote:
>>We have blown out a number of RS-232 boards on computers due to 70 volt
>>(210V/3) ground loops between the different phases.  
>
> You can use >optocouplers for RS232 lines between the rig and computer and 
>between two computers. 
>73's Jari, OH2BVE
>jari.wirzenius at hat-fi.kone.com
>
Another approach is to use fiber optic RS-232 modems between computers. I 
started using them for mountain-top VHF operations where RFI and distance 
between stations became a concern. An added bonus is that optical fiber is a 
heckuva lot less weight than copper.

Mike KB4NT
Michael Barts                          mbarts at vt.edu
Research Engineer                      Amateur Radio: KB4NT
Litton Systems Poly-Scientific
Blacksburg, VA 24060


>From sellington" <sellington at mail.ssec.wisc.edu  Mon Sep 19 08:33:51 1994
From: sellington" <sellington at mail.ssec.wisc.edu (sellington)
Date: 19 Sep 94 07:33:51 U
Subject: NA 9.05 Bugs

NA 9.05 apparently has a bug when used for the Scandinavian Activity
Contest, non-EU.  If a non-Scandinavian prefix is inadvertently entered,
attempting to log it or "Check Country" crashes NA, reverts to DOS, and
requires a reboot to get everything working again.  "Error 09 occurred
in module NA905 at address 04BD:3DDC."

Less serious, but annoying, is that in the practice mode, hitting the
"ins" key instead of "=" causes all sorts of wierd things to happen.
Recovery requires restarting NA, and maybe rebooting.

Does anyone know if K8CC has an email address?


Scott Ellington  K9MA
sellington at mail.ssec.wisc.edu

>From Alan Brubaker <alan at nah.dsd.ES.COM>  Mon Sep 19 14:59:46 1994
From: Alan Brubaker <alan at nah.dsd.ES.COM> (Alan Brubaker)
Date: Mon, 19 Sep 1994 07:59:46 -0600
Subject: Phone sprint...
Message-ID: <199409191359.HAA18154 at nah.dsd.ES.COM>


K6XO/Mobile   26/12

Mark, KI7WX, was operating from my station, so I drove up the hill
and snagged a few of you from the car. Tough sledding with low power
and a small antenna, for sure. However, I was amazed to work WW2Y in
NJ on 40 meters well before sunset. A big signal out this way.

Alan, K6XO

alan at dsd.es.com

If they can't hear ya, ya can't work 'em.

>From rmarosko at bcm.tmc.edu (Ron Marosko)  Mon Sep 19 15:21:05 1994
From: rmarosko at bcm.tmc.edu (Ron Marosko) (Ron Marosko)
Date: Mon, 19 Sep 1994 09:21:05 -0500
Subject: Sprint SSb - W9REG
Message-ID: <199409191421.JAA12348 at bcm.tmc.edu>


>55/29 1595 (asterick for low power, pound sign for lousy antennas, ampersand
>for too much home brew prior to sprint, dollar sign for poor preparation).
>--scott N9LJX

Heh. 50/21 1050. Excuses: 2 hours. Low power. No antenna for 20m. Low
inverted vee
for 40 and 75. Longest call in the contest (KB5NFN/AA).


73,
   Ron 
---
#include <std.disclaimer.h>
   As usual, the views expressed here do not represent the views of
   the BCM management, staff, or any living person.
+-------------------------------+--------------------------------+
|         Ron Marosko           | The Computing Resource Center  |
|      rmarosko at bcm.tmc.edu     |   Baylor College of Medicine   |
|        kb5nfn at amsat.org       |                                |
+-------------------------------+--------------------------------+



>From Bill Standerfer <bills at hpislwes.lvld.hp.com>  Mon Sep 19 15:27:38 1994
From: Bill Standerfer <bills at hpislwes.lvld.hp.com> (Bill Standerfer)
Date: Mon, 19 Sep 94 08:27:38 MDT
Subject: Sprint - KF0DJ
Message-ID: <9409191427.AA28777 at hpislwes.lvld.hp.com>

SSB Sprint results from KF0DJ: 193/41 -> 7913

I didn't think this was too bad for a first time sprinter.  This is great
sport!

Bill

Bill Standerfer                        *        Hewlett-Packard Company
CFI-A, IA, ME                          *        VXI Systems Division
bills at lvld.hp.com                      *        Loveland, CO  80539 
Baron N222AB - KF0DJ - Pikes Peak 253  *        303-679-2378

>From Jay Kesterson K0GU x6826 <jayk at bits.fc.hp.com>  Mon Sep 19 15:36:07 1994
From: Jay Kesterson K0GU x6826 <jayk at bits.fc.hp.com> (Jay Kesterson K0GU x6826)
Date: Mon, 19 Sep 94 8:36:07 MDT
Subject: K0GU Sprint score
Message-ID: <9409191436.AA10026 at bits.fc.hp.com>

band       QSOs        K0GU Phone Sprint
 80         85         FT-1000, Alpha 76PA 
 40        119         Mosley PRO-96 @ 57', 75m Inverted L, beverages
 20        111

TOTAL      315   X   50 multipliers  =  15,750

20 sucked, so did I (couldn't type for some reason).

Missed: ME,NH,AR,OK,AK,MT,NE,VE2 & VE8    DX mults worked: KP4 & CM
Of the above only heard MT (twice on 40m)

73, Jay K0GU                jayk at fc.hp.com

>From jesposit at sctcorp.com (Joe Esposito)  Mon Sep 19 16:01:00 1994
From: jesposit at sctcorp.com (Joe Esposito) (Joe Esposito)
Date: Mon, 19 Sep 94 11:01 EDT
Subject: N3NNU/HR1 QSL Info
Message-ID: <m0qmkDt-0003LjC at sctladm.sctcorp.com>

I am the QSL manager for Joseph Ladd, N3NNU/HR1 who is a captain in
the marines assigned to the US Embassy in Tegucigalpa, Honduras. He's
very active on 30 meters. If you need his card, an SASE would be
appreciated. My address is good in any CB since 1985.

73,

Joe, K2YJL

>From David C. Patton" <mudcp3 at uxa.ecn.bgu.edu  Mon Sep 19 16:17:16 1994
From: David C. Patton" <mudcp3 at uxa.ecn.bgu.edu (David C. Patton)
Date: Mon, 19 Sep 1994 10:17:16 -0500 (CDT)
Subject: Multi-radio single operator
Message-ID: <199409191517.AA14225 at ecom3.ecn.bgu.edu>

The use of two radios is the best thing to happen in contesting other
than moving to a coast.

Eqpt for two radio work can be very little.  Any old, crusty, TS-520
hooked to a dipole on 40 meters only can be worth 50 or 100 QSOs in
SS.  Then one can leave the tribander on the high bands.  Not much of
an argument that only "the rich" can play two radio games.  

Any additional points gained using two radios is gained by the
operator.  This is not an ethical question similar to using packet as
a single operator where other people are contributing information.

And it really isn't a technology issue either.  A TS-520, maybe a
bandpass filter, maybe a small amp, and a dipole.  Even *I* can
figure that out.

Alternating CQs between the two radios is nearly always
counter-productive, and I agree with KR0Y and others that the second
radio is best suited for S & P.  However,

I have used the second radio as an alternate CQ ing radio on a "dead"
band in DX contests to raise an occasional African or VK.  

I have also already used three radios simultaneously.  At K4VX in one
DX contest I used one radio to CQ on a "near dead" band (with monitor
off, while watching the lights on the DVK), and used two other radios
to tune 40 and 80.  This is effective especially for S & P
applications where one finds large pile-ups.  I would leave one radio
on the pile-up waiting to get through, one radio alternatively CQing
on 10 or 15, and one radio tuning 75.

Obviously I could not put three radios worth of audio into the
headphone so I had to leave the CQing radio (in this instance) on the
speaker.  Took a little getting used to, but was fun.

Nowadays if one wants to have an outside shot at making the top ten
in the SS or CQWW from the midwest, using two radios is the best, and
most fun way to try.  From K9FD last year I had simple antennas (no
power dividing either, just one antenna at a time), no bandpass
filters, and two radios that sometimes didn't work too well because
of interference, but still ended up number 10 in SS CW.

Effectively the second radio had nearly the impact of the
geographical advantage of a station located similarly to K6LL.

Two radio use has been going on for 20 years.  It's nothing new.
It's ludicrous to believe that anyone would look at the results and
think less of someone who used two radios to improve his/her score.

If you're used to making the top ten year after year because you live
someplace where this is possible using your tribander that is rusted
into one position at that 50 foot level, well you should be
concerned.  'Cuz those of us who have been used to not making the top
ten year after year are putting up antennas that face multiple
directions, power dividing, using two radios, and operating for the
full 48 or 24 hours, just so we can see what it is like to make the
top ten and know that we really deserved it.

Life is too short for one radio.

Dave Patton, WX3N
mudcp3 at uxa.ecn.bgu.edu


>From Jeffrey Clarke <jdclarke at freenet.columbus.oh.us>  Mon Sep 19 16:49:40 1994
From: Jeffrey Clarke <jdclarke at freenet.columbus.oh.us> (Jeffrey Clarke)
Date: Mon, 19 Sep 1994 11:49:40 -0400 (EDT)
Subject: W8FN sprint score
Message-ID: <Pine.3.07.9409191140.A1617-a100000 at acme.freenet.columbus.oh.us>



      Hello all !

                       Here's my score for the SSB Sprint this past
     weekend:



     W8FN ( KU8E opr)    


                         band          qsos
                         --------------------

                          80           73
                          40           95
                          20           65
                        ----------------------

                                      233 * 45 mults  = 10485


    team :  The Baseball Team   name: slugger




      had a lot of fun but both 20 and 40 were long here as they 
      usually are. used a two radio setup for the first time and
      still have a lot to learn...... I did snag a few mults that
      I probably otherwise would not of got though. 


      Also, congrats to KW8N for such a great score from the 
      black hole in the midwest !!



                        73,     Jeff   KU8E





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