[PVRCNC] MP Output Specs

[email protected] [email protected]
Fri, 3 May 2002 09:21:01 EDT


For what it's worth, here's what the Yaesu FT-1000MP manual says about r.f. 
output:

Power Output:   adjustable up to 100 watts
                        (25 watts AM carrier)

Duty cycle:    100% @ 50 watts, 50% @ 100 watts
                     (FM & RTTY, 3-minute Tx)

IMHO, it's kinda vague about FM and RTTY; is the 3-minute limit for 50 or 100 
watts?
I suspect it's at 50 watts, but it's supposed to be 100% for a continuous 
mode). However, note that AM is limited to 25 watts....

What's am I ranting on about? Just trying to be a "nice guy" and pass along 
some information that might save you a lot of grief. I blew my finals (two 
2SC2879 bipolar rf transistors) during the TARA PSK31 Rumble a couple 
weekends ago. Hassle? For starters, your MP weighs around 45 pounds...if 
you're going to ship it to Yaesu/California, that's $60 each way (according 
to N4AF)...then, there's the delay at Yaesu -8 weeks, I hear-, and Yaesu's 
price for the transistors is $60.88 EACH!!!
Whoa!!! 
So, my friends, it behooves you to crank down the gain when running digital 
modes.
For insurance, you can use the Menu Setting 4.0 and set max power to 50 
watts. Then, back off on that. K4HA advises running 25 watts and using your 
amp to augment the output if you so desire. In PSK mode, 25 watts is ample 
power for most contests.
Enjoy your MP, but be reasonable! 
73, Bert N4CW