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Re: Topband: BCB interference ?

To: Hardy Landskov <n7rt@cox.net>
Subject: Re: Topband: BCB interference ?
From: Stan Stockton <wa5rtg@gmail.com>
Date: Mon, 22 Sep 2014 10:21:04 -0600
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Why can't you come out of Ant out jack through filter and back in through ant 
in jack and select RX antenna?

Stan, K5GO

Sent from Stan's IPhone



> On Sep 22, 2014, at 8:07 AM, "Hardy Landskov" <n7rt@cox.net> wrote:
> 
> Ed,
> I have the same problem. A 25KW station at 1560 KHz just destroys the front 
> end of my K3. Elecraft did not do a vey good job on their front end filtering 
> but that's another issue. I finally had to build a 7 pole HPF from W3NQN's 
> article many years ago. The catch is it has to be able to handle the transmit 
> power too. There is no room in the K3 for a receive filter. Elecraft just 
> blew me off when I told them about the problem. They said I was 1 in a 1000 
> that had that problem and they were not going to fix it.
> You will need at least 40 dB of attenuation and to my knowledge none of the 
> commercially available filters will do the job.
> I heard that Array Solutions might have a transmit HPF now but I have not 
> looked into it.
> 73 Hardy N7RT
> 
> ----- Original Message ----- From: "Ed Stallman" <n5dg@airmail.net>
> To: "TopBand List" <topband@contesting.com>
> Sent: Monday, September 22, 2014 6:50 AM
> Subject: Topband: BCB interference ?
> 
> 
>> Has anyone used this High Pass Filter ? 
>> http://www.dunestar.com/store/160-Meter-Highpass-Filter-pid-8.html
>> 
>> I found I have a 25KW AM 1520 Khz BC transmitter 12 miles from me , is that 
>> close enough to interfere with me receiving weak signal DX on the top Band ? 
>> I do hear some wide band hash 1837 to 1840 !
>> 
>> Though I would asking before placing an order, not sure how what to look for 
>> with BCB interference ?
>> 
>> Tnx Ed N5DG
>> 
>> 
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