http://elecraft.85.s1.nabble.com/Fw-CQ-WW-DX-Contest-CW-2011-Unofficial-claimed-scores-tp7060148p7060699.html
optimize the AGC settings. The K3 works quite well in those situations,
in my opinion. It's the pileups with several low level signals that are
the problem, and I never use the noise blanker. I don't need to since
I'm in a semi-rural location with almost zero noise. I only use one
radio and the nearest commercial station of any sort is 20 miles away.
The problem is real.
> We never saw this at J6 and the pileups were huge. Are you certain that
> the radio is not broken in some way? G0DVJ said the K3 was very
> impressive in its ability to handle the huge pileups and crowded
> conditions. He is probably going to be purchasing one.
>
> Are you using the noise blanker by chance? What is the build out of
> that radio. Was this a multi transmitter operation? If so could it be
> the other radio is trashing the K3? We used NQN bandpass filters and
> never heard each other. Are you close to any high power AM broadcast
> stations? Does this happen on all bands or just some?
>
> Many times I had to crank in the filters to widths that other radios
> could not possibly handle and I worked my way back into my main pile
> picking out calls one at a time. The audio was always crystal clear.
>
> If the K3 can't do it , no radio can. Maybe the FTDX5000 but it is not
> a radio that can travel. The TS-590 might if they had bothered to offer
> roofing filter options.
>
> W0MU
>
>
>
> On 12/4/11 7:11 AM, Cady, Fred wrote:
>> Neat site but unfortunately none of the audio clips demonstrate the
>> pileups heard at dx locations like C6AAW. Once again this year the K3s
>> AGC failed to perform adequately for us. I found many times I just had
>> to turn AGC off. Signals were much cleaner and more distinguishable.
>> I think there are two things going on. First, I think the threshold
>> cannot be set high enough. The maximum is around S3 according to my
>> measurements. Thus, when you have a pileup of signals all in the S3, S4,
>> S5 region, which is common, AGC is compressing them together. When AGC
>> is off, these signals are now in a linear region of the transfer curve
>> and can be distinguished more easily. Second, and this is hard for me to
>> judge since it has been a while since I've used an analog audio
>> processing radio like the TS850, the audio doesn't sound "good". I
>> dunno. I think there is an inherent harshness(?) to digitally produced
>> audio as compared to analog audio. I'm not an audio guy, for sure.
>>
>> Sadly, I suspect top contesters are beginning to look for another radio
>> to replace the K3 :-(
>>
>> 73,
>> Fred
>> KE7X/C6AKX/C6AAW
>>
>>
>> -----Original Message-----
>> From:
[hidden email]
>> [mailto:
[hidden email]] On Behalf Of Paul VanOveren
>> Sent: Sunday, December 04, 2011 6:16 AM
>> To: elecraft reflector
>> Subject: [Elecraft] Fw: CQ WW DX Contest CW 2011 - Unofficial claimed
>> scores
>>
>> Russian website with claimed scores from last weekend. Very cool video
>> embedded from HI3A, with 2 K3"s prominently displayed... you can look up
>> your score in the search box, for your ranking in the World, North
>> America or just USA....
>>
>>
>> Subject: CQ WW DX Contest CW 2011 - Unofficial claimed scores
>>
>>
>>
http://pileup.ru/cqww_cw.php?year=2011>> ______________________________________________________________
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