Micom-2 HF

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);

Select the digit to change with the "MON" button.
Use the scroll up/down to change the value of the digit.
Continue until you have programmed the entire frequency.
Push the "FUNC" button.

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:

"BW" sets the receive bandwidth - for SSB voice, leave it at 2700. Other settings include 3300 and CW.
"FREQ" If you set it to "YES", ALL channels will be displayed as frequency instead of channel number. NO selects channel number display. Note: This will affect the radio until reprogrammed even if you choose "temporary change" below!

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

For a temporary change, push the "PRI" button - the original channel info will return when you re-select this channel.
To save the change into memory, hold the "FUNC" button for 3 seconds until "STORING" appears in the display. Then switch the radio OFF, then ON.

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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