Equipment information

Kenwood TM-241A Transceiver
Manufacturer:
Kenwood
Model: TM-241A
Date: 1994
Category: Radio, Communication
Group: Transceiver
Description: 144MHz FM Transceiver
Information:
                                    General
Frequency range
...................................................136 to
174MHz : TM-241A (M2,M3), TM-241 E(E2)
144 to 148MHz : TM-241A <K,K2,P,P2,X,M)
144 to 146MHz : TM-241 E (E,E9,EM)
Mode......................................................................
F3E (FM)
Antenna
impedance............................................. 50C2
Power
requirements............................................
13.8V DC ± 15% (11.7 to 15.8V)
Ground
...................................................................
Negative
Frequency
stability...............................................
Less than ±10ppm
Current
drain.........................................................Transmit
mode : Less than 11A Receive mode with no signal: Less than 0.6A
Operating
temperature........................................-20°C to
+60°C (-4°F to +140°F)
Dimensions (W x H x D)......................................
140 x 40 x 160 mm (5-1/2" x 1-37/64" x 6-19/64")
Projection
included.......................................... 140 x 40
x 172 mm (5-1/2" x 1-37/64" x 6-25/32")
Weight....................................................................
1.2kg (2.65lbs)

These manuals are available for the above equipment:

Manual Type: Service Manual Kenwood-890-Manual-Page-1-Picture
Pages: 71
Size: 39.89 Mbytes (41822770 Bytes)
Language: english
Revision:
Manual-ID/Number: B51-8059-10 (N)1177
Date: May 1994
Quality: Scanned document, very well readable.
Upload date:
MD5: 5476bb898a2641ee06bf9cba15caaab0
Downloads: 8148 since 04 November 2008
Information:
Please use this service manual together withe the previous B51-8059-00.
Kenwood-890-Manual-Page-1-Picture


Manual Type: Cirquit Diagram Kenwood-8348-Manual-Page-1-Picture
Pages: 1
Size: 28.16 Kbytes (28838 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Scanned document, all readable.
Upload date:
MD5: a44d08fc6ae72a8bfab095179f58a63d
Downloads: 96 since 08 January 2017
Information:
Kenwood-8348-Manual-Page-1-Picture


Manual Type: Service Manual Kenwood-8353-Manual-Page-1-Picture
Pages: 71
Size: 39.89 Mbytes (41822770 Bytes)
Language: english
Revision: Revised
Manual-ID/Number: B51-8059-101 N )1177
Date: 01 May 1994
Quality: Scanned document, all readable.
Upload date:
MD5: f7f0c90cc73c2e0c1d2cb2299c15c009
Downloads: 190 since 08 January 2017
Information:
This service manual is the same as the service manual (B51
-8059-00) for TM-241A/E (TM-241A : K,P,M,M2 TM 241E : E,E2)
destinations except that this manual contains new items for
(TM-241A : M3,X,K2,P2 TM-241E : E9,EM) destinations.
Use it together with the previous service manual (B51-8059-00).

CIRCUIT
DESCRIPTION..............................................2
DESCRIPTION OF COMPONENTS.........................11
PARTS
LIST.................................................................15
EXPLODED VIEW
......................................................30
PACKING.....................................................................31
ADJUSTMENT...........................................................32
TERMINAL FUNCTION.............................................37
CIRCUIT DIAGRAMS / PC BOARD VIEWS
LCD ASS'Y (B38-0330-05)....................................38
PLL
(X58-3470-00)..................................................39
PLL
(X58-3500-11)..................................................41
APC
(X59-3130-00).................................................43
MIC AMP (X59-3610-00).......................................43
TX-RX UNIT (X57-369X-XX) ...............................44
SCHEMATIC DIAGRAM ...........................................47
BLOCK
DIAGRAM......................................................51
LEVEL
DIAGRAM.......................................................54
DRU-1 (DIGITAL RECORDING UNIT)....................55
DTU-2 (DTMF
UNIT)..................................................63
MC-44DM/MC-44DME (MULTI FUNCTION
MICROPHONE WITH AUTOPATCH) .....................65
MC-44 (MULTI FUNCTION MICROPHONE).........66
MC-44E (MULTI FUNCTION MICROPHONE).......67
TSU-6 (CTCSS UNIT)
................................................68
SPECIFICATIONS ..................................BACK COVER
Kenwood-8353-Manual-Page-1-Picture


Manual Type: User Manual Kenwood-8364-Manual-Page-1-Picture
Pages: 57
Size: 2.14 Mbytes (2247677 Bytes)
Language: english
Revision:
Manual-ID/Number: B62-0031-30
Date:
Quality: Scanned document, reading partly badly, partly not readable.
Upload date:
MD5: 325979a0031803130bd7bd893da20108
Downloads: 152 since 08 January 2017
Information:
Instruction Manual

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/E only).................................. 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
SCHEMATIC DIAGRAM Another sheet
7. MAINTENANCE .............................................50
IN CASE OF DIFFICULTY ........................51
8. OPTIONAL ACCESSORIES ........................52
Kenwood-8364-Manual-Page-1-Picture


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