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From: commgrp
Date: 5 Dec 89 09:46:00 PST

Subject: ICOM 2GAT Mods





Fred, I got this off the news, I dont know if you care about it.

Mike



P.S. Only for you information, I know you would never dream of doing this to a

radio. :-)



________________________________________________________________________





>From: commgrp
>Subject: Icom IC-2GAT out-of-band transmit m

Message-ID: <12600087
Date: 4 Dec 89 19:09:00 GMT

Organization: Indiana University CSCI, Bloomington

Lines:43

Nf-Id:#N:silver:12600087:000:1641

Nf-From: silver.bacs.indiana.edu!commgrp    Dec  4 14:09:00 1989

Apparently-To: sanford









OUT-OF-BAND TRANSMIT MOD FOR ICOM IC-2GAT HANDHELD 2M TRANSCEIVER

(copied from packet radio; origin unknown:)





Back side of display board:

 _____________________________________

|                          D505        \

|          D507  D504      ___          \

|           ___   ___     |___|          \             |

|          |___| |___|                    \        --  + --

|   D506                    Q506           |           |

|    _o_------               _o_           |       hole for

|   |___|     |             |___|          |       on/off-vol

|    o o      |              o o           |       control

|             |                |           |__________________

|              -----|<---------                              |

|          add diode:1N914 or equiv.                        |

|                                                            |



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.



--



Frank    W9MKV     reid


 
SOURCE: The QRZ Windows Ham Radio CDROM



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