开云体育

Any suggestions how I can lower the TX power out when running FT8 with R1CBU ver 0.2.0 firmware.
Release notes mention FT8/FT4 power limited to 5 Watts...but my X6100 is putting out 10 watts and
drawing 4.5 amps on external power supply.
Firmware works great on SSB and CW - and power out matches where I set it (5 watts).
Thanks
Carl

Thank you for your great firmware.
I do not have FT8 running on external computer. Only connection to X6100 are 12.6 V external power supply, CW straight key and dipole antenna.
Rig power set in firmware for 5.0 watts. On CW I have 5 watts out (verified with external power meter).
When I press APP and access FT8 mode rig syncs up in a few moments. Then I enable TX CQ and X6100 transmits with
external wattmeter showing 9.5 watts output.?
(Other stations answer my call - so FT8 working fine - just wish I could operate with 5 watts out.
73
Carl

On Fri, Mar 15, 2024 at 03:43 PM, <wa3see@...> wrote:

Then I enable TX CQ and X6100 transmits with
external wattmeter showing 9.5 watts output.?

It's quite strange. When you turn on APP FT8, if the current power is more than 5W, a warning should appear that the power has been reduced to 5W.
I checked this and this is exactly how it works for me

73!

I did some testing on 'dummy load' and find power out changes as FT8 frequency is increased.
If I adjust FT8 cursor to transmit with 500 Hz or 800 Hz tone my X6100 transmits FT8 CQ at 5 watts.
(As shown on firmware power indicator and external wattmeter.)
If I move FT8 cursor higher... at 1000Hz the power out shows 8 watts.
At 1200 Hz and 1400 Hz, and 1600 Hz -? it shows 10 watts.
This behavior may be limited to my X6100, (or X6100 models built at the same time).
The trick for me is to just transmit my FT8 carrier tones at 800 Hz or below to have 5 watts output.
Thanks for all your hard work, I mostly use CW mode and your firmware makes CW a joy.
73
Carl