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icom 2821d scan mode


Premium Subscriber
Jan 4, 2015
can someone help me new to icom having a problem setting up scan function on radio i need to scan 12 channels but i dont know how to set it up i believe i got scan right but im a little lost any input will help.


Dec 30, 2009
If your programming is correct, make sure the mic hangup button is grounded, or do the mod to the mic or faceplate.


Premium Subscriber
Jul 9, 2003
090-45-50 W, 39-43-22 N
Option 1: Hang up the mic in a grounded hanger.
Option 2: Get a HM148G, which has a two-part hanger that provides both ground and off-hook sensing to the back of the mic and allows you to mount an ungrounded hanger on plastic.
Option 3: Open the mic and ground pin 8. Re-assembly is a three handed dexterity challenge. Caution: do not confuse pin 8 with pin 1 as #1 has positive voltage and shorting it will release magic factory smoke. DO NOT jump Pin 8 to ground on the front face RJ-45 as you will no longer be able to clone the radio.
Option 4: (My choice) Pop the front face off and put a drop of solder on CP-1. It is easy to locate on the top edge of the board. That will tell the CPU that the mic is always on-hook.

Confirming, there is no F1700-series programming option to set off-hook scan. The radio has been around for 15 years, and the same firmware also does the F70 portables where off-hook is not an issue. Io fix this issue Icom provides option 4, above.