home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
HAM Radio 3
/
hamradioversion3.0examsandprograms1992.iso
/
mods
/
newmods3
/
ic02at.12
< prev
next >
Wrap
Text File
|
1991-02-22
|
1KB
|
34 lines
IC02AT.12
ICOM O2AT INTERFACE TO MFJ 1270B TNC 2 PACKET RADIO
SPEAKER JACK
1. CONNECT THE SHIELD (PIN 2 - GROUND, AUDIO AND PTT COMMON) TO THE
LONG OR OUTSIDE POST OF THE SPEAKER JACK.
2. CONNECT THE BLACK WIRE (PIN 4 - RECEIVE AUDIO) TO THE SHORT OR
CENTER POST OF THE SPEAKER JACK.
MICROPHONE JACK
1. CONNECT THE YELLOW WIRE (PIN 1 - MICROPHONE AUDIO) TO ONE SIDE
OF A .05 MICROFARAD DISK CAPACITOR (RADIO SHACK CAT. NO. 272-134)
AND THE OTHER SIDE OF THE CAPACITOR TO THE SHORT OR CENTER POST
OF THE MICROPHONE JACK.
2. CONNECT THE WHITE WIRE (PIN 3 - PUSH-TO-TALK) TO ONE SIDE OF A
1/4 WATT, 2200 OHM RESISTOR (RADIO SHACK CAT. NO. 271-1325) AND
THE OTHER END OF THE RESISTOR TO THE SHORT OR CENTER POST OF THE
MICROPHONE JACK.
3. CONNECT THE SHIELD (PIN 2 - GROUND, AUDIO AND PTT COMMON) TO THE
LONG OR OUTSIDE POST OF THE MICROPHONE JACK.
4. ISOLATE THE RED WIRE (PIN 5 - SQUELCH) WITH BLACK TAPE AS IT IS
NOT USED.