Kenwood TM-441A User Manual

7\m144MHz FM TRANSCEIVERoooTM-241A/241E430/440MHZ FM TRANSCEIVERTM-441A/441E1200MHz FM TRANSCEIVERTM-541A/541EINSTRUCTION MANUALKENWOOD CORPORATION©PR

5 OPERATION511 CONTROL FUNCTIONSAL CTCaS‘188.8.8.8.8.5 f ssTM-241A(1) POWER switchPress to turn the transceiver on or off.Press the VFO/M^V or MR/M ke

®VFO/M^V keyThis key is used to return to VFO operation after operating in the MR or CALL channel mode. Pressing this key will all

Press this key to activate the call channel function. Press the F key momentarily and then press the CALL key to store the currently displ

CTcsa ^'I88.8.8.B.8.S ififi fJ« WP.tc© °© ©°0(Z)REV/STEP keyThis key is used to reverse the transmit / receive frequencies during repe

® ★ ¿/¿/ Indicates the active memory channelnumber. ★ indicates that the channel is locked out.C is displayed during call channel. Either PO, PI, P2

5-1-4 Microphone(D ®@ p@ 0® 00@ ®U.S.A.European version versiondXDUP/DOWN switchesThese switches can be used to increase or decrease the VFO freq

5-2 RECEIVER OPERATIONSAudio confirmation is provided whenever a front panel key is depressed. You can disable this function by pressin

5-2-2 Frequency SelectionYou can change the dial frequency while in the VFO mode. The frequency can then also be stored in memory, o

4. Rotate the tuning control or press the UP/DWN switches on the microphone until the desired tuning step size appears in the display.5

Now select the desired upper tuning limit using the MHz key and tuning control, or microphone UP/DWN switches.With our example TM-241 we

Thank you for purchasing this new transceiver.IMPORTANT:Please read this instruction manual carefully before placing your transceiver in service.

5-3 TRANSMITTER OPERATIONCaution1. Ensure that an antenna with a low standing wave ratio (SWR) is attached to the antenna connector before at

5-4 MEMORY5-4-1 Microprocessor Memory Back-up This transceiver contains a lithium battery to retain memory. Turning off the POWER switc

5-4-5 Memory ContentsEach Memory channel is capable of storing the following information. (YES Can be stored in memory. NO : Cannot be stored in memor

Odd.Split Channels Press the VFO/M^V key to select the VFO mode.Select the desired receiving frequency ,tone frequency,etc. (For example145.6

# CALL Channel1. Press the VFO/M^V key to select the VFO mode.2. Select the desired operating frequency .offset,tone frequency,etc.( For examp

5-5 SCANWhen the scan function is turned on, turn the tone alert function off. If the tone alert function is on, scan will not activate.5-5-

1. Press the VFO/M^V key to select the VFO mode.2. Adjust the SQL control to the threshold point.3. Press and hold the VFO / M^V key for longer than

1. Adjust the SQL control to the threshold point.2. Press and hold the MR/M key for longer than 1 second. The MHz indicator will flash as a visual r

The priority alert function allows you to monitor memory channel 1 for activity even when you are tuned to a different channel number. Whe

Some repeaters utilize a “Reverse Pair”, i.e. the transmit / receive frequencies are exactly the reverse of another repeater. For example repeate

CONTENTS1. BEFORE OPERATION ... 42. SPECIFICATIONS ... 63. ACCESSORIES .

5-6-5 Autopatch Operations (U.S.A. versions only)Some repeaters offer a service known as autopatch. This feature allows you to dial a telephone

5-8 DTSS (Dual Tone Squelch System) OPERATION [Requires optional DTU-2]This function allows squelch to be turned on in the receive mode on

and the third digit begins to flash.7. Select the third digit by rotating the Tuning control.8. Press the DR/DT key and the complete DTSS code is reg

1. Adjust the SQL control to the threshold point.2, Press the DR/DT key. The DTSS indicator will light. Each time the DR/DT key is pressed, the DTSS a

5-9 DRS (Digital Recording System) OPERATIONThe optional DRU-1 (Digital Recording Unit) permits you to manually or automatically record up

5-9-2 Tone Quality Level Selection1. DRS indicator lights in the display.2. Press the TONE/T.ALT key. Each time you press the TONE/T.ALT key the t

5-9-4 Recording# Recording an incoming receive signal manually.1. Select the desired operating frequency. Recordings can be made from the VFO mo

1. Press the F key for longer than 1 second, then press the DR/DT key while the F indicator is flashing to enter the DRS setting mode.The DRS

5. Only a signal with the proper CTCSS tone (if the TSU- 6 is installed ) will initiate recording. If no tone unit is installed the recording will sta

4. Set the second digit with the tuning control, then press the MHz/LOCK key.The third digit will flash.5. Set the third and fourth digit

AWARNING BEFORE OPERATIONTO PREVENT ELECTRIC SHOCK, FIRE AND OTHER INJURY. PLEASE NOTE THE FOLLOWINGS:To avoid risk of electric shock,under no c

r*#00Reset command and stop recordingReset command and stop recording01Record with the first phrase—02Record with the second phrase—03Record

The paging function is available when the optional DTMF unit (DTU-2) is installed.The paging function is useful to call all stasions a group, a

5-10-1 Paging Code Memories There are five(5) paging code memories.UsePAStore your individual ID code in memory.POAutomatically stores the calling

For example, the following groups communicate with each other.Predetermined frequency 145.660MHz Your individual code 111Station I’s individual code

Calling all station in the group1. To call all station in the group, select the memory number in which the group code is stored. In

1. Tune to the predetermined frequency.2. Press the DR/DT key to light the P indicator.5-10-4 Paging Reception (Stand by)IhS.BBu PR0O0 ©O0jstand by wi

stand by with group code1. When a call is received with the group code, the squelches of all the members of the group are opened to

5-11 TONE ALERT SYSTEMThe Tone Alert function will provide an audible “Alarm” to signal when someone is transmitting on the frequency y

5-12 APO (Automatic Power Off)The automatic power-off function turns the power off automatically if you forget. It does not operate dur

5-14 BEEPThe beep can be turned on and off.Press the F key for longer than 1 second, then press the REV/STEP key while the F indicator is flashing.Eac

Do not touch the power plug, when your hands are wet.CLEANING1. Turn the power off, before cleaning the unit.2. Do not use any type of

7 MAINTENANCE7-1 GENERAL INFORMATIONYour transceiver has been factory aligned and tested to specification before shipment. Under normal circumstances

7-3 IN CASE OF DIFFICULTYThe problems described in this table are failures caused, in general, by improper operation or connection of

7-2. ACCESSORIESMC-44/MC-44E (E: European Version) MULTI FUNCTION MICROPHONE MC-60A MICROPHONE (8-pin)The zinc die-cast base provides high stabili

I CTCSS UNIT TSU-6PG-3G DC LINE NOISE FILTERPG-2N DC POWER CABLERC-10 REMOTE CONTROLLERIF-20 INTERFACEDIGITAL RECORDING UNIT DRU-1 ./< RC-20REMO

nstaliing accessoriesCAUTION1. Before installation , be sure to disconnect the DC power supply,or battery, or damage may occur the equi

DTMF unit DTU-21. Remove the 2 screws securing the Top cover.2. Carefully remove the top cover. (Fig.l )3. Remove the backing from the small cu

REMOTE CONTROLLER RC-10To operate the transceiver with the RC-10 press and hold the CALL key on the transceiver and then turn on the POWER

(Dm keyUsed to store data in a memory channel. Data cannot be stored in memory channel 11 or subsequent channels by the RC-10, but it can be stored in

REMOTE CONTROLLER RC-20 To change control to the RC-20, connect the RC-20, hold down the transceiver VFO/M^V key, and turn the power switch on.Before

KENWOOD

2 SPECIFICATIONSTM-241A(U.S.A) TM-241A/E TM-441A(U.S.A)TM441ATM441E TM-541A/ECD0)c<D(3Frequency range MHz144 to 148 144 to 146438 to 450 430 to 44

3 ACCESSORIESUnpack your new transceiver carefully, and examine it for visible damage If the equipment has been damaged in shipment,

4-2 CONNECTION 4-2-1 Mobile InstallationsCautions :1. Before installing the power cable, be sure to remove the negative lead from the ba

4-2-2 Fixed Station4-2-3 AntennaA regulated DC power supply (13.8 VDC capable of supplying at least 11 Amperes) is required. The PS-430 or the