[UK-CONTEST] RRTC

[Stewart GM4AFF]

I have the recordings made by the referee at WRTC 2006 for this station
which used this filtering arrangement. It is amazing, and is a pleasure to
listen to. I hear no evidence of anything other than good filtering.

Stewart
GM4AFF

-----Original Message-----
From: uk-contest-bounces at contesting.com
[mailto:uk-contest-bounces at contesting.com]On Behalf Of Adrian Rees (MW1LCR)
Sent: 22 July 2009 21:55
To: 'Danny Higgins'; 'David, G3YYD'
Cc: UK-Contest at contesting.com
Subject: Re: [UK-CONTEST] RRTC


I agree

I think this is fast, clever switching and filtering.



-----Original Message-----
From: uk-contest-bounces at contesting.com
[mailto:uk-contest-bounces at contesting.com] On Behalf Of Danny Higgins
Sent: 22 July 2009 19:01
To: David, G3YYD
Cc: UK-Contest at contesting.com
Subject: Re: [UK-CONTEST] RRTC


I don't think it is all down to filter technology.  The broadband noise
from a transmitter on the same co-ax will get through any filter, unless
it is somehow cancelled out.

Danny, G3XVR

David, G3YYD wrote:
> Roger
>
> Any hints on what the filtering technoogy used?
>
> David G3YYD
>
> Roger G3SXW wrote:
>
>> Dear UK-Contest,
>> I observed Russian Radio Team Contest as preparation for WRTC-2010.
>> It was held just outside Moscow with 18 two-man teams, and was the
>> 18th straight year that it has been held. Field Day style, all
>> stations within a few miles of each other (but minimum separation of
>> 500 metres) on flat grass-lands. Identical antennas: tribander and
>> 40m Vee at 35 feet. Eight-hour multi-mode contest, changing call-sign
>> and exchange each two hours. Full-time Referee monitoring each Team.
>> The winner RW3QC/RN3QO made 1,532 QSOs, an average of over 190 per
>> hour throughout.
>>
>> Set-ups and operating were extremely impressive: two radios, two ops,
>> often one CQ, the other S&P, with lock-out to prevent both TX at the
>> same time. All the leading four teams used a filtering system
>> allowing TX on one radio and RX on the other radio at the same time
>> ***on the same antenna/coax***. Cor!
>>
>> The log-checking data-base benefited from some 600 external logs
>> e-mailed within four hours and the whole adjudication process was
>> finished some eight hours after the end of the contest, with the
>> award ceremonies the following morning.
>>
>> It was an enjoyable weekend (language is a problem though). WRTC
>> competitors next year will be well cared-for but will have some
>> difficulty beating these super-slick Russian competitors! 73 de
>> Roger/G3SXW. _______________________________________________
>> UK-Contest mailing list
>> UK-Contest at contesting.com
>> http://lists.contesting.com/mailman/listinfo/uk-contest
>>
>>
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