Icom IC-F3GS Transceiver
VHF FM TRANSCEIVER
Supports multiple signalling and flexible selective calling
CTCSS/DTCS encoder/decoder, and DTMF, 2/5-tone encoder with
user programmable CTCSS, DTCS capabilities, are built-in.
The optional UT-96’ (for 2/5- tone), or UT-108’ (for DTMF)
allows decode with ANI functions. In addition, special tone
code, for group, and individual calls, and more features are
available to support flexible, perfect selective calling
• 7-digit code can be used as the 5-tone · Direct individual
station/group call with/without own ID transmission, or
· Selectable 5-tone format includes user
tone tor- mat programming capability (Encode and Decode
frequencies, Tone period, No-tone timer, and Tone length) ·
Text or ID number indication · Desired 5-tone code entering
for both individual and group call ■ Transceiver
control— stun, kill, and scan start/stop functions ·
Selectable comparing digit code for decoding · Selective
calling capability from a public telephone (UT-108 otmf
decoder is required; base Repeater
station must be connected
to the public telephone network)
• System image diagram
Man down function*
Automatically sending an emergency signal when the
is left in the horizontal position for a pre-set
Optional UT-113’ is required.
Compatible with the SmarTrunk II™, or the LTR trunking systems.
Optional UT-105' for SmarTrunk II1“, UT-111' for LTR
trunking is required.
Optional voice scrambler units, UT-109' and UT-110', for
secure communications are available.
Programmable key assign
Up to 8 programmable keys are available to assign specific
functions. In particular, the red key can be used for
important function, such as emergency call, etc.
Wide/narrow channel switchable depending on version.
1.02 Mbytes (1068230 Bytes)
Scanned document, all readable.
09 January 2016
1.06 Mbytes (1116383 Bytes)
Electronic document, no scan, very well readable.
06 February 2012
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONS
3-1 DISASSEMBLY INSTRUCTION ... .3 - 1
3-2 OPTIONAL UNIT INSTALLATIONS ... .3 - 2
SECTION 4 CIRCUIT DESCRIPTION
CIRCUITS ... .4 - 1
CIRCUITS ... .4 - 2
4-3 PLL CIRCUITS ... .4 - 3
4-4 Power Supply
CIRCUITS ... .4 - 3
4-5 CPU PORT CIRCUITS ... .4 - 4
SECTION 5 ADJUSTMENT PROCEDURES
5-1 PREPARATION ... .5 - 1
5-2 PLL ADJUSTMENT ... .5 - 4
5-3 SOFTWARE ADJUSTMENT ... .5 - 5
SECTION 6 PARTS LIST
SECTION 7 MECHANICAL PARTS AND DISASSEMBLY
SECTION 8 SEMI-CONDUCTOR INFORMATION
SECTION 9 BOARD LAYOUTS
SECTION 10 BLOCK DIAGRAM
SECTION 11 VOLTAGE DIAGRAM