[Elecraft] KX2 on JT65 & JT9 ??

D Howard va3ma at me.com
Sun May 29 23:42:14 EDT 2016


Wayne
I would imagine a bit of cooling on the KX2 end plate will help also? Heat sink...
Happy to see it is within limits for WSJT modes without freezing it!! Hi hi
Dan VA3MA


> On May 29, 2016, at 11:35 PM, Wayne Burdick <n6kr at elecraft.com> wrote:
> 
> I'm glad it's working. But just in case, we will also be providing an optional extended temperature compensation procedure for the KX2.
> 
> 73,
> Wayne
> 
> 
>> On 2016-05-29, at 22:37, Luke <aurich85 at yahoo.com> wrote:
>> 
>> Hmm, not sure why it cut out my message. Here's what I wrote:
>> 
>> I've used my KX2 on WSPR and JT65 and it appears to be plenty stable. I used to have a KX3  and sold it because it wouldn't decode WSPR between transmit cycles due to excessive drift. I've kept the KX2 to <5 watts because the right sideplate gets very hot with the high duty cycle.
>> 
>> I've actually just been sitting here running JT65 @ 10 watts when I got your email, and it is doing pretty well. I had 3 back to back QSO's and on the last transmission the PA Temp got up to 47C (~117F) which doesn't seem too bad. As it cools off there is no drifting or slanting of signals on the waterfall either. I think the 1 minute on/off duty cycle of JT65 is very doable with the KX2, and WSPR might be pushing it. The other night the sideplate got quite hot running WSPR at 5 watts.
>> 
>> Luke
>> AD0KI
> 
> 
> 


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