144MHz FM TRANSCEIVERTM-221A TM-221ES220MHz FM TRANSCEIVERTM-321A430MHz FM TRANSCEIVERTM-421A TM-421 ES440MHz FM TRANSCEIVERTM-421 A1200MHz FM TRANSCE
0 SHIFT indicatorTurns on during repeater offset operations. See Section 4-6 REPEATER for additional information on this indicator,(D R
TM-221A/321A/421A/521A U.S.A. version only0and (2) UP/DWN (Up/Down) switchesThese switches are used to step the VFO frequency or Memory Chan
4-2-2. Frequency and Memory Channel SelectionThe desired operating frequency and the Memory Channel may be selected by using either
(With the TM-521E)1. Press the ALT key. The ALT indicator will turn on and the receiver will automatically center itself on the incoming signal
4-4-4. Memory Channel ContentsThe following data can be stored in each Memory Channel.ModelMemory Channel ContentsFrequencyTM-221ASHIFT status
4-5-3. Scan DirectionScanning begins in the direction that corresponds to the direction that the TUNING control was last turned, or
4-6-2. Offset DirectionTo select the desired transmitter offset direction press the SHIFT key. Each time you press the key the radio will adva
4-7. TONE FREQUENCY SELECTION(TM-221A/321A/421A/521A only)1. To select the Tone Frequency press the M.IN key and then the TONE key. The Disp
5. MAINTENANCE AND ADJUSTMENT5-1. GENERAL INFORMATIONYour transceiver has been factory aligned and tested to specification before shipment.
5-5. MICROPROCESSOR BACKUPLITHIUM BATTERY REPLACEMENTLithium battery replacement should be performed by an authorized KENWOOD service facili
Thank you for purchasing the new transceiver. This unit has been carefully engineered and manufactured to rigid quality standards,
6. OPTIONAL ACCESSORIESNote:-----------------------------------------------------------------------------Some optional accessories may not be av
6-3. OTHER ACCESSORIES PS-430 DC POWER SUPPLYMay be used with the TM-221/421/521 series and TM-321A for stable operation. SP-430 EXTERNAL SPE
MC-85 MICROPHONE (8-pin)The MC-85 is a unidirectional high-class electret condenser microphone provided with the output selective switch
SW-200A/200B SWR/POWER METER (supplied with a coupler)SW-200A supplied with SWC-1. SW-200B supplied with SWC-2. Selectable peak-reading/RMS.
7. BLOCK DIAGRAM AND CIRCUIT DIAGRAM7-1. BLOCK DIAGRAM7-1-1. TM-221 seriesNote:Block Diagram is subject to change without notice due to advancements i
7-1-4. TM-521 seriesNote:Block Diagram is subject to change without notice due to advancements in technology.25
8. REFERENCE8-1. ANTENNA8-1-1. Fixed StationVarious types of fixed station antennas are commercially available. Select your antenna accor
8-2. MOBILE INSTALLATION HINTS8-2-1. Noise ReductionIn motor vehicles, noise is generated by the ignition system. Other sources of noise
Model TM-221A/221ES/321A/421A/421ES/521A/521ESerial No. __________________________________________Date of Purchase___________________________________
KENWOOD
1. BEFORE OPERATIONSafety precautionsWarning:--------------------When operating this transceiver mobile, please drive safely.Never remove the
2. SPECIFICATIONS AND ACCESSORIES2-1. SPECIFICATIONSModelSpecificationsFrequency rangeTM-221A144 to 148 MHzTM-221ES144 to 146 MHzTM-321A220 to 225 MHz
2-2. ACCESSORIESPlease unpack your new transceiver carefully, and confirm that the accessories listed below are included in the box. I
3. INSTALLATION AND CONNECTIONWarning:------------------------------------------------------------------------Never apply AC power to the DC Po
3-2. CONNECTIONSCautions:---------------------------------------------1. Before connecting or disconnecting the DC Power Cable, be sure to tu
4. OPERATIONWarning:---------------------------------------------- ------------------------------------------------1. When operating this transceiver
1. Function KeysWith the TM-221A/321A/421A/521A0 (D0 0SHIFTREV 'SCANCTCSSTONE0 TONE keyActivates the tone circuit for repeater control. Th
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