Help re IC751/CT

rkaufmn at CC.UManitoba.CA rkaufmn at CC.UManitoba.CA
Wed Dec 8 20:18:36 EST 1993

Question #1

A fellow ham( VE4GH ) has an IC-751 which he uses with CT. It seems that when
he uses CT for CW contests, the rig switches to CW mode and mutes. Obviously,
the program has switched the rig into CW mode and is looking for a specific
filter. I believe he has a 500 hz filter installed. Can someone in the CT
bunch tell me exactly what Icom filter the program switches for ?

Question #2

VE4GH also likes to run " QRP assisted" category in contests. Since our
cluster in Winnipeg is stand alone and has no input from remote areas,
spots are few and far between. Is QRP category all lumped together ?
I've never seen a "QRP ASSISTED" class in any of the contests. 
Is there such an animal. If not, and single op QRPers who use cluster
spots are placed in the "SO Assisted category" , what's the point in
running QRP ??

Any comments/ Suggestions appreciated. Thanks

>From JKULKKI at (Jari Kulkki, tel 358-0-5118226, fax 358-0-5118272)  Thu Dec  9 05:30:22 1993
From: JKULKKI at (Jari Kulkki, tel 358-0-5118226, fax 358-0-5118272) (Jari Kulkki, tel 358-0-5118226, fax 358-0-5118272)
Date: Thu, 9 Dec 1993 8:30:22 +0300 (EET)
Subject: XX9AS WW CW Score
Message-ID: <931209083022.20403ccc at>

                    CQ WORLD WIDE DX CONTEST  1993
       Call: XX9AS                    Country:  Macao
       Mode: CW                       Category: Multi Single
       160        0        0     0.00      0       0
        80      298      472     1.58     14      33
        40      445      927     2.08     24      50
        20      656     1304     1.99     23      54
        15     1589     3443     2.17     32      88
        10      367      649     1.77     14      35
      Totals   3355     6795     2.03    107     260  =>  2,493,765
 Operators:    Martti, OH2BH and Jari, OH1EB
 Station:      FT1000 + Alpha 89 (no mult station!)
               TH3 @ 180' asl  (above street level)
               HF2V with few radials
               No antenna for 160m
 Lost few hours because of equipment problems.  Working japanese in the
 same continent is easy but the score is low.  Nice openings on 10m.
        Jari OH1EB

>From Ward Silver <hwardsil at>  Thu Dec  9 02:08:28 1993
From: Ward Silver <hwardsil at> (Ward Silver)
Date: Wed, 8 Dec 1993 18:08:28 -0800 (PST)
Subject: WW multi-single rules
Message-ID: <Pine.3.03.9312081824.A19074-b100000 at>

I think the 10-minute rule is easiest to interpret and apply if one thinks of
QSO as a "toggle".  No band changes are required until an event occurs on 
the new band.  Then, and only then, does the 10-minute clock begin to run.

Toggle #1 says that to be "on" a band, a QSO has to be _completed_.  What
happens when the mult station is calling away like mad for many minutes
prior to making that QSO (or maybe never makes it) while the run station
continues to make contacts?  Clearly, two transmitters were on the air at
the same time, but only ONE was making QSOs.  The log looks no different
than if only one station is transmitting.  But if the QSO is made, then
the 10-minute toggle is invoked and operation must remain on the new band.

Toggle #2 says that _any_ transmission on the new band, even "QRL?" in
the strictest sense, starts the 10-minute clock.  That means that a
conscious choice to work that new mult has to be made, requiring a band
change.  I would then expect the run station to move to the _same_ band
and begin calling CQ, synchronized with the mult station's pauses between
calls and shutting down while the mult station QSO is made.  This, too,
satisfies the letter of the rule.

I think both toggles are clear and have a simply stated invoking condition.  I
would vote for Toggle #2 as my preferred interpretation.

Ward, N0AX

>From Randy A Thompson <K5ZD at>  Thu Dec  9 04:43:37 1993
From: Randy A Thompson <K5ZD at> (Randy A Thompson)
Date: Wed, 8 Dec 1993 23:43:37 -0500 (EST)
Subject: WW multi-single rules
Message-ID: <Pine.3.87.9312082336.A4230-0100000 at>

Eric's mail points out two serious problems with understanding and 
interpretation of the multi-single rules.  Wish the contest sponsors 
would publish some clarification on this.

 On 7 Dec 1993 ERIC.L.SCACE at wrote:
> Here's a question of interpretation for the CQ WW multi-single category.
> ============
We used to assume that the 10 minute period started when the QSO was 
made.  This is the best way to prevent a 10 minute rule violation.

However, most people just look for a 10 minute window around the QSO.  
This is the best way with regard to maximizing score.

The way the rule is written, the 10 minute window is OK.
> ITEM #2:
> ========
>    This log shows that the running station abandoned 20m at 1238z (last QSO
> logged then) ... and the mult station started at 1246z (first QSO logged).
> Only 8 minutes elapsed.  My understanding is that there is nothing in the
> rules which suggests that one must be "off" a band for at least 10 minutes.

I agree.  There is nothing that says you have to be off a band for 10 
minutes.  Only that you may work multipliers on a second band during a 10 
minute period.
I am not on the committee but it's my opinion.  Multi-single is a really 
great category that leaves plenty of room for interpretation.  There is 
no rule which simply states only one transmitter may be on the air at one 

I have been at M/S efforts where 4 people are talking at the 
same time and we are not in violation of the rules.  Just a rule calling 
for only one transmitted signal, coupled with the 10 min multiplier rule, 
would "equalize" all the various M/S efforts a lot.

Randy, K5ZD

>From Keskinen Petri <oh3mep at>  Thu Dec  9 10:33:15 1993
From: Keskinen Petri <oh3mep at> (Keskinen Petri)
Date: Thu, 9 Dec 1993 12:33:15 +0200 (GMT)
Subject: Forwarded score rumours
Message-ID: <9312091033.AA19005 at>

Forwarded message:

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