Oh, hm, maybe I'm thinking of WSPR or another mode; I know one of them was 30 seconds on, 30 seconds off.
In any case, though, modes that modulate at 100% duty cycle during the transmit portion are still going to get the rig hotter than CW will. But, yes, agree, just get a heatsink. Worst case, your finals are extra comfy. 73, Julie On Wed, Jul 16, 2025, 15:55 Rick Bates, nk7i <[email protected]> wrote: > 13.5 seconds key down, twice a minute, or 7.5 seconds four times a minute > about 47% duty cycle; just to be clear. > > Add the heatsinks, they may help and they won't hurt a thing. > > 73, > Rick nk7i > > > On 7/16/2025 12:44 PM, Julia Tuttle via Elecraft wrote: > > 3. Additional heatsinking is necessary only to avoid foldback while > operating digital modes like FT8 that transmit at 100% duty cycle for 30 > seconds straight. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

