I believe FT8 is 13 sec TX, 2 sec decode and then 15 sec RX for a total of
17 sec non-TX so you have 13 sec TX and 17 sec RX.  Much less than 50%.

-----------------
73,
Tom - KQ5S

On Wed, Feb 14, 2018 at 6:51 PM, Jim Brown <j...@audiosystemsgroup.com>
wrote:

> And even this is conservative -- JT65 is 48 sec TX and 72 sec RX, so 40%
> duty cycle. FT8 and MSK144 have equal TX and RX times, so 50% duty cycle.
> The TX period for MSK144 can be varied from 5-30 sec, but TX and RX times
> are always equal.
>
> 73, Jim K9YC
>
> On 2/14/2018 3:25 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
>
>> Yes, the amp can run indefinitely on 50 Mhz with 50 sec key down TX at
>> continuous 1500W carrier followed by 50 sec in RX. We specifically were
>> looking at 100% carrier modes like JT65 etc. when we conservatively
>> specified this.
>>
>
>
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