[Antennas] Output Power

Mike Miller mike.kc9doa at sbcglobal.net
Sat Jun 17 14:35:23 EDT 2006


Menu 75, rf  power set,  would certainly be easier than 
installing an attenuator in line. It allows adjustment from 5-
100W. Settings are per band not per mode.

There is a battery sens terminal in the power connector (see pg 
32 in the manual) that when grounded reduces the max power out 
to 20W. Some people on the Yahoo FT-857 list report using this 
feature to reduce power for tuning. Search the archives at that 
group and you'll find a lot of discussion on this topic.
<http://groups.yahoo.com/group/FT-857/> .

I don't use a tuner with my 857 so I don't have any personal 
experience with the problem or solutions.

Mike kc9doa

> Im installing a FT857D with a LDG Z-100 auto-tuner in my Scion xB.  The 
> manual with the tuner says not to put over 10 watts on the tuner during 
> initial tune up.  Now I can place a 10 to 20 Db attenuator in the line 
> but I''ll have to be constantly putting it in and out of the circuit 
> while testing new antennas,  a real pain.  It would be cool, if I could 
> program the '857D for 10watts out on CW mode only (all other modes 
> standard 100 watt},              My question; anyone know any "trick" 
> programing that would accomplish this?  Thanks, Ron  K6ZL
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