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Subject: Yaesu FT-857D Expanded RF |
Modification for RX and TX
1.8-56MHz, 137-164MHz, 420-470MHz
1. Remove the seven screws affixing the top panel of the transceiver, and gently
lift it upward.
2. Carefully remove the small 2-pin speaker plug from the left rear corner of
the transceiver interior then remove the top case and set it aside for the
moment.
3. Locate the nine jumpers about 2" from the front edge of the main unit
and about 3/4" from the left edge. For 144/430MHz expansion only, remove
the jumper at JP1002, leaving the other jumpers alone. For complete expansion
per the above listing, place jumpers at JP1007/1008/1009, and remove the jumpers
at JP1001/1002/1003/1004/1005 (leave the jumper at JP1006 in place). NOTE THE
UNUSUAL SEQUENCE FOR THE NUMBERING.
4. Replace the top panel; don't forget to re-connect the speaker lead removed in
step 2.
5. With the transceiver off, press and hold in the [F] and [V/M] keys; while
holding them in, turn the radio on. Modification is now complete.
Author: Thomas DO9ST
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Mods are at your own risk - Modifikationen auf eigenes Risiko |