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DO9ST > YAESU 19.02.05 15:53l 52 Lines 1361 Bytes #999 (0) @ EU
BID : J2FDB0FHN03V
Read: DG5YM DG8DG GUEST DK8NZ DO4CP OE5TUN DG9YIH DK7JY DG9VH DG8YHH DG5YMS
Read: DC9BM DC4RJ VE7HFY
Subj: PWR-Mod FT857
Path: DB0FHN
Sent: 050219/1453z @:DB0FHN.#BAY.DEU.EU [JN59NK Nuernberg] obcm1.06b48
From: DO9ST @ DB0FHN.#BAY.DEU.EU (Thomas)
To: YAESU @ EU
Reply-To: DO9ST @ DB0LJ.#RPL.DEU.EU
X-Info: No login password
TX Power Mod for Yaesu FT857(D)
Contact author:
Alex, HB9TSF, NH7VW
WARNING: changing these will reset all the memories.
Enter the Servicemenue. I want to warn you do not change these values unless
you are sure of what you are doing. To get them turn transceiver off. Press
and hold the A,B,C keys; while holding them in, press and hold in the [PWR]
switch for 1/2 second to turn the tranceiver On. Now let go of all keys.
Press F key to finish.
For this procedure you will need a Dummy Load (or a well matched Antenna) and
a Wattmeter!
Locate Menue No
NO-024 HF1-PO-MAX 165 (set to 255) CW 1.800.00
NO-028 HF2-PO-MAX 159 (set to 255) CW 7.068.19
NO-032 HF3-PO-MAX 158 (set to 255) CW 21.225.13
NO-036 50M-PO-MAX 145 (set to 255) CW 50.000.00
NO-040 VHF-PO-MAX 87 (set to 255) CW 145.437.50
NO-043 UHF-PO-MAX 112 (set to 255) CW 438.900.00
Thatīs it!
After this mod I have about 130 Watts on HF and 6 mtr, about 90 Watts on VHF
and 40 Watts on UHF!
I have done this mode a few month ago and I have no problems (my Final
Transistor is still ok ;-)) !
IMPORTANT: Before changing any values in the Aligment menue, please write
down your original settings!
WARNING: DOING THIS MOD MAY EVENTUALLY RESULT IN A DAMAGED FINAL TRANSISTER
AND/OR REDUCED SERVICE LIFE!!
find in www.mods.dk
73 Thomas
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