I will add that many operators aren't aware that their rig can't do full power 
on all modes.
Many rigs rated at 100W can only do 25W in AM mode (100% duty cycle) -- the 
manuals do show this.
For those rigs I always recommend to the ops to run FT8 at 50W max to avoid 
pushing the temperature on their rig's finals.
So a 300 seconds Q65 would definitely be 100% duty cycle and a max of 25W or 
whatever your manual says is the AM maximum power level.
Mike W9MDB

 

    On Wednesday, February 3, 2021, 03:20:48 PM CST, Bill Somerville 
<g4...@classdesign.com> wrote:  
 
 On 03/02/2021 21:02, Edfel Rivera wrote:
> Hi:
> Please see attachment. Seems to be decoding or the functionality is 
> correct.  Also, what TX power could be used? As TX intervals increase, 
> Could that cause damage to rig terminals?  Thinking of JT65 where TX 
> power  < ~30watts.
>
> BTW, Thank you very much for INNOVATION.  Seems like another fantastic 
> mode.
>
> 73'
>
> Edfel
> KP4AJ

Hi Edfel,

the lines in the Single-Period Decodes window without decodes indicate 
the best, but not decodable, candidate signal within the current 
frequency tolerance window. They may provide indication that a station 
is transmitting.

As for Tx power, nothing new there, use whatever is needed to make the 
QSO and not more. That could be 1500 W or 1 pW depending on the band, 
path, and conditions. For EME and VHF weak signal modes like ionoscatter 
a few hundred watts may be necessary. Like JT65 Q65 is 100% duty cycle 
and the same considerations for PA current and temperature should be 
observed as would be for any other 100% duty cycle mode like FM.

73
Bill
G4WJS.



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