[Elecraft] OT Hearing HRD Communicate w/K3

[Buck - k4ia]

There are also two pin 1 mods that solved my problems.  Search the 
Alerts Enhancements page on the Elecraft website.

Buck
k4ia


On 3/18/2011 6:18 PM, Jim Brown wrote:
> On 3/18/2011 2:51 PM, Elecraft K3 wrote:
>> I am experiencing a confounding problem with Ham Radio Deluxe, Digital Master 780 and my K3.  I've determined that HRD polling the K3 is introducing a croaking pulse-like noise into my signal chain.
> I strongly suspect that HRD is NOT causing this problem, but rather a
> problem with either the computer or the K3 generating RF trash on the
> serial connection. This is not uncommon, and generally is the result of
> a Pin One problem at one or more of the data and/or audio ports.
> Virtually all computer sound cards and data ports have Pin One problems.
>
> IF the trash is coupled by RF to the antenna(s), a SERIOUS multi-turn
> ferrite choke on the problematic cable(s) should help.  The choke should
> be tuned (by varying the number of turns) to cover the frequency range
> where you are hearing interference.
>
> Study http://audiosystemsgroup.com/RFI-Ham.pdf
>
> 73, Jim K9YC
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html