[Elecraft] How to outfit a K3 for JT65HF or JT9

Joe Subich, W4TV lists at subich.com
Mon Apr 21 13:05:33 EDT 2014


There are, of course, exceptions to that rule.  When there is a
very strong signal in the passband that is causing the receiver
to reduce gain to the point that a weak signal is not copyable,
a CW filter (400 Hz) centered on the weak signal can often make
the difference between copy and no copy.

73,

    ... Joe, W4TV


On 4/21/2014 12:58 PM, Jim Brown wrote:
> On 4/21/2014 8:28 AM, Larry Lopez wrote:
>> Or is it better just to use the DSP to narrow it down ?
>
> K1JT says that it is best to run the radio broadband and let the WSJT
> software provide the needed selectivity in its decoding algorithm. The
> reason is simple -- phase shift can cause decoding errors, filters in
> the radio create phase shift.
>
> 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
> Message delivered to lists at subich.com
>


More information about the Elecraft mailing list