Icom IC-28H (IC 28 H IC28H) transceiver mods reviews software and diagrams

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Transceivers
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Icom IC-28H (IC 28 H IC28H)

IC-28H

Programming interface schematics for Icom:
Programming software for Icom IC-28H (IC 28 H IC28H) :
PDF User Manual for Icom IC-28H (IC 28 H IC28H) :
PDF Service Manual with schematics for Icom IC-28H (IC 28 H IC28H) :

Mods for Icom IC-28H (IC 28 H IC28H) :
Icom IC-28H (IC 28 H IC28H) ext frq
Icom IC-28H (IC 28 H IC28H) The long, noisy squelch-tail

Icom IC-28H (IC 28 H IC28H) technical specifications : Icom IC-28H (IC 28 H IC28H) technical specifications

Icom IC-28H (IC 28 H IC28H) ext frq

To make the IC-28 transmit 138-174 MHz, cut D21 (no retuning required). D21 is a tiny glass diode standing on-end near the center of the upper circuit board, accessible by removing the top cover. The IC-28 is the only convertible ham rig I know that covers the 170-MHz federal government (including national park) frequencies.

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