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- FT411.3
-
- Yaesu has sent out the following as an extended frequency coverage mod for the
- FT-411. I tried it and it works as advertised. First remove all black screws
- from case. Remove 4 silver screws holding the battery connector on bottom.
- Remove the 3 knobs. Carefully separate the front and back. There is a
- multiconductor trace between the front and back so hinge the front from the
- back to keep from putting too much tension on the traces. Looking at the board
- side of the front cover there are 8 little solder pads. They are half hidden
- by a cover plate and the multiconductor trace. Pad 2 will have a solder
- connection, the rest are open. Remove the solder fro the battery connector on
- bottom.
- Remove the 3 knobs. Carefully separate the front and back. There is a
- multiconductor trace between the front and back so hinge the front from the
- back to keep from putting too much tension on the traces. Looking at the board
- side of the front cover there are 8 little solder pads. They are half hidden
- by a cover plate and the multiconductor trace. Pad 2 will have a solder
- connection, the rest are open. Remove the solder from pad 2 and place a solder
- bridge on pad 3. All other pads will be open. Close up radio.
- Now when you turn on radio it will come up with 1.000 in the display. Memory
- channel should say 1. Program in the lower receive frequency.
- Example 1 - 4 - 1 - 0 then push VFO key. The Memory channel should go to 2.
- Now program in the upper receive frequency. i.e. 1 - 6 - 5 - 0 and push VFO
- key. Memory will move to 3. Do same for lower and upper transmit frequencies.
- Note. The receiver sensitivity falls off at 162.55 to about 1 uv. The step and
- repeater offset will need to be re-programmed also. Follow instruction manual.