Kenwood TM-241A User Manual

From The N3UJJ.COM Document LibraryFrom The N3UJJ.COM Document Library
CONTENTS
1. BEFORE OPERATION . . . . . . . . . . .. .. . . . 4
2. SPECIFICATIONS .. .. . . . .. . . . . . . . . . .. . 6
3. ACCESSORIES .. .. .. . .. . . . .. . .. . . . . . . . 7
4. INSTALLATION INSTRUCTIONS . . . . . . 7
5. OPERATION
CONTROL FUNCTIONS.................. 10
RECEIVER OPERATION
Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
Frequency Selection . . . . . . . . . . . . . . . . . . . 17
Frequency Step Selection . . . . . . . . . . . . . . 17
Programmable
VFO Tuning Limits . . . . . . 18
ALT(TM-541A/Eonly).... .. . . . ... . . . ... 19
TRANSMITTER OPERATION............. 20
Time-out Timer (TOT) . . . . . . . . . . . . . . . . . 20
MEMORY
Microprocessor Memory back-up . . . . . . . 21
Initial State . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Microprocessor Initialization . . . . . . . . . . . 21
Memory Channel . . . . . . . . . . . . . . . . . . . . . 21
Memory Contents . . . . . . . . . . . . . . . . . . . . . 22
Memory Entry . . . . . . . . . . . . . . . . . . . . . . . .
22
Memory Channel Recall . . . . . . . . . . . . . . . 24
Memory Shift . . . . . . . . . . . . . . . . . . . . . . . . . 24
SCAN
Scan Operation . . . . . . . . . . . . . . . . . . . . . . . 25
Hold/Resume Programming . . . . . . . . . . . 25
Band
Scan . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Programmable Band
Scan . . . . . . . . . . . . . 26
Memory Channel
Scan . . . . . . . . . . . . . . . . 27
Memory Channel Lockout . . . . . . . . . . . . . 27
Priority Alert Function . . . . . . . . . . . . . . . . 28
REPEATER OPERATIONS
Transmitter Offsets . . . . . . . . . . . . . . . . . . . 28
Reverse Function . . . . . . . . . . . . . . . . . . . . . 29
Tone Operation . . . . . . . . . . . . . . . . . . . . . . 29
Tone Frequency Selection . . . . . . . . . . . . . 29
Autopatch (U.S.A. version only) . . . . . . . .
30
TONE/ CTCSS OPERATION.......... 30
DTSS (Dual Tone Squelch System)
OPERATION .. . .. .. . .. .. .. . .. .. .. .. .. 31
DRS (Digital Recording System)
OPERATION . .. .. .. . .. . .. .. .. .. . .. . . . 34
PAGING .. ... . . .. .. .. . .. . .. . .. . .... .. 41
TONE ALERT SYSTEM .. .. . .. .. . . . .. . 47
APO (Automatic Power Off) . . . . . . . . . . . . 48
DIM(Dimmer) . . . . . . . . . . . . . . . . . . . . . . . . . 48
BEEP................................. 49
LOCK/A.LOCK . . .. .. . . .. . .. .. .. . .. . .. 49
6. BLOCK DIAGRAM and
SCHEMA TIC DIAGRAM . . Another sheet
7. MAINTENANCE .. .. .. .. .. .. . .. . . .. .. 50
IN CASE OF DIFFICULTY . .. .. .. .. .. 51
8. OPTIONAL ACCESSORIES . . . . . . . . . . . 52
3

Kenwood TM-241A Specifications

General

Brand	Kenwood
Model	TM-241A
Category	Transceiver
Language	English