home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
World of Ham Radio 1997
/
WOHR97_AmSoft_(1997-02-01).iso
/
mods
/
icom
/
ic_2gat.doc
< prev
next >
Wrap
Text File
|
1997-02-01
|
2KB
|
53 lines
Subject: ic2GAT mod file
copied from UUCP:
Newsgroups: rec.ham-radio
Subject: Icom IC-2GAT out-of-band transmit m
Organization: Indiana University CSCI, Bloomington
silver.bacs.indiana.edu!commgrp Dec 4 14:09:00 1989
OUT-OF-BAND TRANSMIT MOD FOR ICOM IC-2GAT HANDHELD 2M TRANSCEIVER
origin unknown:)
Back side of display board:
_____________________________________
I D505 \
I D507 D504 ___ \
I ___ ___ I___I \ I
I I___I I___I \ -- + --
I D506 Q506 I I
I _o_------ _o_ I hole for
I I___I I I___I I on/off-vol
I o o I o o I control
I I I I__________________
I -----K---------- I
I add diode: 1N914 or equiv. I
I I
Connect diode between top lead of D506 and lower right lead of
Q506 as shown.
Notes: D506 may be absent. If not, remove it.
Reset CPU if needed.
---
A friend did this and his IC-2GAT can now transmit 138 to 178 MHz (no
RF power output measurements were made). He did no retuning, and did
not have to reset the CPU. He used a tiny axial-lead glass diode,
replaced its leads with wire-wrap wire, and encased it in shrink-tube.
The operation requires a super-tiny soldering iron. Observe CMOS
soldering precautions: Unplug the iron and ground the tip before
touching the circuit.
Remember: Except for MARS and CAP, it is illegal to transmit outside
the ham bands with non-type-approved equipment.
Use of other frequencies outside ham bands should only be
with transverters, or testing recievers (use a dummy
load, or attenuator and direct cable).
--
Frank W9MKV reid@gold.bacs.indiana.edu
I haven't tried this or verified it, proceed at your own risk. Stay in legal
bands, too. WA2ISE