Micom-2 HF

General Information

Micom-X User Manual

Are you looking for a user manual for your Micom-X HF/SSB radio? Look no further, you can download a scanned copy here. Beware that it is about a 4MB PDF.

Front Panel Programming Instructions

1. Select the channel you wish to program (Note: The channel must be enabled for User Programming for this to work!).

2. Push the "FUNC" button twice and hold it for 3 seconds, until "NEW FREQ" appears in the display.

3. Push the "FUNC" button and "F xxxx" will appear (xxxx = whatever freq is in the memory);

4. Push the "FUNC" button and "BAND" will appear - use scroll up/down to select USB or LSB.

5. Push the "FUNC" button and "PWR" will appear - use scroll up/down to select between MAX/HIGH/MED/LOW.

6. Push "FUNC" and "AGC will appear - use scroll up/down to choose between SLOW/FAST.

7. Push the "FUNC" button and use scroll up/down to choose between SSB/AME/PLT.

8. If you have an enhanced radio, there are two more menus:

9. Push the "FUNC" button and "CH STORE will appear:


Pinout of the 25 pin Accessory Connector (J3):

Pin No. Pin Name Description
1 SPKR- Differential output to the external 8ohm, 8W spkr
2 SPARE
3 SPKR+ Differential output to the external 8ohm, 8W speaker
4 RX AUDIO+ Differential output of received audio signals (0dBm; 600ohm; not controlled by volume)
5 RX AUDIO- Differential output of received audio signals (0dBm; 600ohm; not controlled by volume)
6 TX AUDIO+ Differential input received audio signals (600ohm impedance; -9 to 0dBm is required for full power)
7 TX AUDIO- Differential input audio signals (600ohm impedance; -9 to 0 dBm is required for full power)
8 PTT_IN VOICE Transmission command (by short to ground) for voice signals
9 PTT_IN DATA Transmission command (by short to ground) for data signals
10 PTT_IN CW Transmission command (by short to ground) for CW (Morse) signals
11 SW A+ 13.8V (nominal) current limited
12 KW_C_C KW option channel change
13 KW_ON/OFF KW option power ON/OFF
14 AGC FAST/SLOW AGC fast or slow release
15 RXD Point to point communication line to HOST/HLC
16 TXD Point to point communication line to HOST/HLC
17 RESET External RESET
18 GND Ground
19 KW PTT KW PTT
20 EXT_ALARM External Alarm Operation (open collector - pulled to ground when external alarm is activated)
21 VPP Flash programming voltage
22 KW_ALC KW_ALC
23 SQ_GATE Squelch indication
24 FAN ON/OFF FAN ON/OFF
25 KW TUNE KW tune

Pinout of the Programming Cable

RJ-45 Plug / DB-9 Jack

Pin 7- Receive Data    -----   Pin 3- Transmit Data
Pin 6- Transmit Data   -----   Pin 2- Receive Data
Pin 5- Ground          -----   Pin 5- Ground

The orientation of the RJ45 is with the tab down and if you are looking at the end of it, pin 1 is on the right. Click here for a visual aid.

No RIB is required, it is straight RS-232 into the radio.


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