1 Install the mounting bracket in the vehicle using the supplied self-tapping screws (4), flat washers (4), and spring washers (4).
The bracket must be installed so that the 3 screw hole positions on the side of the mounting bracket are towards the rear of the bracket. Self-tapping screw (5 mm x 16 mm) Spring washer Flat washer
2 Position the transceiver, then insert and tighten the supplied hexagon SEMS screws (4) and flat washers (4).
Double check that all hardware is tightened to prevent vehicle vibration from loosening the bracket or transceiver.
SEMS screw Determine the appropriate angle of the transceiver, using the 3 screw hole positions on the side of the mounting bracket.
DC POWER CABLE CONNECTION
4 Confirm the correct polarity of the connections, then attach the power cable to the battery terminals; red connects to the positive (+) terminal and black connects to the negative () terminal.
Use the full length of the cable without cutting off excess even if the cable is longer than required. In particular, never remove the fuse holders from the cable. Red Black Fuse holder Fuse holder
Locate the power input connector as close to the transceiver as possible.

MOBILE OPERATION

The vehicle battery must have a nominal rating of 12 V. Never connect the transceiver to a 24 V battery. Be sure to use a 12 V vehicle battery that has sufficient current capacity. If the current to the transceiver is insufficient, the display may darken during transmission, or transmit output power may drop excessively. 1 Route the DC power cable supplied with the transceiver directly to the vehicles battery terminals using the shortest path from the transceiver.
If using a noise filter, it should be installed with an insulator to prevent it from touching metal on the vehicle. We recommend you do not use the cigarette lighter socket as some cigarette lighter sockets introduce an unacceptable voltage drop. The entire length of the cable must be dressed so it is isolated from heat, moisture, and the engine secondary (high voltage) ignition system/ cables. Fuse holder
5 Reconnect any wiring removed from the negative terminal. 6 Connect the DC power cable to the transceivers power supply connector.
Press the connectors firmly together until the locking tab clicks.
2 After the cable is in place, wrap heat-resistant tape around the fuse holder to protect it from moisture and tie down the full run of cable. 3 To prevent the risk of short circuits, disconnect other wiring from the negative () battery terminal before connecting the transceiver.

FIXED STATION OPERATION

In order to use this transceiver for fixed station 1 operation, you will need a separate 13.8 V DC power supply (not included). The recommended current capacity of your power supply is 12 A. 1 Connect the DC power cable to the regulated DC power supply and ensure that the polarities are correct (Red: positive, Black: negative).
Do not directly connect the transceiver to an AC outlet. Use the supplied DC power cable to connect the transceiver to a regulated power supply. Do not substitute a cable with smaller gauge wires.
2 Connect the transceivers DC power connector to the connector on the DC power cable.

Fuse holder

Note: For your transceiver to fully exhibit its performance capabilities, we recommend using the optional PS-33 (20.5 A, 25% duty cycle) power supply. Before connecting the DC power supply to the transceiver, be sure to switch the transceiver and the DC power supply OFF. Do not plug the DC power supply into an AC outlet until you make all connections.
Fuse holder Red (+) Black ()
Regulated DC power supply

To AC outlet

REPLACING FUSES
If the fuse blows, determine the cause, then correct the problem. After the problem is resolved, replace the fuse. If newly installed fuses continue to blow, disconnect the power cable and contact your authorized KENWOOD dealer or an authorized KENWOOD service center for assistance.

ANTENNA CONNECTION

Before operating, install an efficient, well-tuned antenna. The success of your installation will depend largely on the type of antenna and its correct installation. The transceiver can give excellent results if the antenna system and its installation are given careful attention. Use a 50 impedance antenna and low-loss coaxial feed line that has a characteristic impedance of 50 , to match the transceiver input impedance. Coupling the antenna to the transceiver via feed lines having an impedance other than 50 reduces the efficiency of the antenna system and can cause interference to nearby broadcast television receivers, radio receivers, and other electronic equipment.
Note: E market models use an N-type antenna connector while other models use an M-type (SO-239) connector.

u PF/D key

The default function of this key is 1 MHz step. This key can be reprogrammed if desired {page 59}. Press and hold Mic [PTT], then press [PF/D] to transmit D. To manually send a DTMF number, press and hold Mic [PTT], then press the DTMF keys on the Mic keypad {page 50} in sequence.

i DTMF keypad

This 16-key keypad is used for DTMF functions {page 50} or to directly enter an operating frequency {page 16}, or a Memory Channel number {page 30}. The keypad can also be used to program a Memory Channel name, Power-on message, or other character strings {page 63}.
You can also use the Mic keypad to program a Memory Channel name, Power-on message, or other character strings {page 63}. 13

OPERATING BASICS

SWITCHING THE POWER ON/OFF
1 Press [ ] (Power) to switch the transceiver power ON.
A high pitched double beep sounds and a Power-on message {page 60} appears briefly, followed by the frequency and other indicators.

ADJUSTING THE SQUELCH

The purpose of Squelch is to mute the speaker when no signals are present. With the squelch level correctly set, you will hear sound only while actually receiving signals. The higher the selected squelch level, the stronger the signals must be to receive. The appropriate squelch level depends on the ambient RF noise conditions. 1 Press [F], [REV].
The current squelch level appears.
2 To switch the transceiver OFF, press [

] (Power) (1s).

When you turn the transceiver OFF, a low pitched double beep sounds. The transceiver stores the current frequency and parameters when it is turned OFF and recalls these parameters the next time you turn the transceiver ON.
2 Turn the Tuning control to adjust the level.
Select the level at which the background noise is just eliminated when no signal is present. The higher the level, the stronger the signals must be to receive. 10 different levels can be set. (0: Minimum ~ 9: Maximum; 1 is the default value)

ADJUSTING THE VOLUME

Turn the Volume control clockwise to increase the audio output level and counterclockwise to decrease the output level.
If you are not receiving a signal, press the Mic PF key assigned the MONI function {page 59}, then adjust the Volume control to a comfortable audio output level. Press the MONI key again to cancel the Monitor function.
3 Press any key other than [ ] (Power) to store the new setting and exit the squelch adjustment.

TRANSMITTING

1 To transmit, hold the microphone approximately 5 cm (2 inches) from your mouth, then press and hold Mic [PTT] and speak into the microphone in your normal tone of voice.
and the RF Power meter appears. The RF Power meter shows the relative transmit output power ). ( If you press Mic [PTT] while you are outside the transmission coverage, a high pitched error beep sounds.
2 Press [MENU] and turn the Tuning control to select H (high; default) or L (low) power. 3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode.
Do not transmit at high output power for an extended period of time. The transceiver could overheat and malfunction. Continuous transmission causes the heat sink to overheat. Never touch the heat sink when it may be hot.
2 When you finish speaking, release Mic [PTT].
Note: If you continuously transmit for longer than the time specified in Menu No. 21 (default is 10 minutes) {page 62}, the internal time-out timer generates a warning beep and the transceiver stops transmitting. In this case, release Mic [PTT] and let the transceiver cool down for a while, then press Mic [PTT] again to resume transmission.
Note: When the transceiver overheats because of ambient high temperature or continuous transmission, the protective circuit may function to lower transmit output power.
SELECTING A FREQUENCY VFO MODE
This is the basic mode for changing the operating frequency. To enter VFO Mode, press [VFO]. Turn the Tuning control clockwise to increase the frequency and counterclockwise to decrease the frequency, or use Mic [UP]/[DWN].
SELECTING AN OUTPUT POWER
M4 market version only: The output power of M4 market models cannot be adjusted. It is fixed at 25 W.
You can configure different power levels for transmission. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 6 (TXP).

REVERSE FUNCTION

The reverse function exchanges a separate reception and transmission frequency. So, while using a repeater, you can manually check the strength of a signal that you receive directly from the other station. If the stations signal is strong, both stations should move to a simplex frequency and free up the repeater.

MH z 25 5.3 14

Note: You can turn the Reverse function ON when you are operating in Simplex Mode. However, it does not change the Transmission/ Reception frequencies. If pressing [REV] places the reception frequency outside the allowable range, an error tone sounds and the function does not operate. If pressing [REV] places the transmission frequency outside the allowable range, pressing Mic [PTT] causes an error tone to sound and transmission is inhibited. You cannot switch Reverse ON or OFF while transmitting.

14 4.7 25

AUTOMATIC SIMPLEX CHECK (ASC)

144.725 MHz REV ON

TX: 144.725 MHz TX: 144.725 MHz TX: 144.725 MHz TX: 145.325 MHz RX: 145.325 MHz RX: 145.325 MHz RX: 145.325 MHz RX: 144.725 MHz
While using a repeater, the ASC function periodically checks the strength of the signal you are receiving from the other station. If the stations signal is strong enough to allow direct contact without a repeater, the indicator starts blinking. Press [REV] (1s) to switch the function ON (or OFF).
appears when the function is ON. blinks. While direct contact is possible,
To swap the transmission and reception frequencies: Press [REV] to switch the Reverse function ON (or OFF).
R appears when the function is ON.
Note: Pressing [PTT] causes the icon to quit blinking. ASC can be activated while operating in Simplex Mode. However, it does not change the Transmission/Reception frequencies. ASC does not function while scanning. Activating ASC while using Reverse switches Reverse OFF. If you recall a Memory Channel or the Call Channel that contains a Reverse ON status, ASC is switched OFF. ASC causes received audio to be momentarily intermitted every 3 seconds.
To quit the function, press any key. When the tone frequency is identified, a beep sounds and the identified frequency blinks.

TONE FREQUENCY ID SCAN

This function scans through all tone frequencies to identify the incoming tone frequency on a received signal. You can use this function to determine which tone frequency is required by accessing your local repeater. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 2 (T). 2 Press [MENU] (1s) to start the Tone Frequency ID Scan.

The transmission frequency is stored in the Memory Channel.
2 Turn the Tuning control to select your desired Memory Channel.
You cannot recall an empty Memory Channel. To restore VFO mode, press [VFO].
USING THE MICROPHONE KEYPAD
You can also recall a Memory Channel by entering a desired Memory Channel number with the microphone keypad. 1 Press [MR] to enter Memory Recall mode. 2 Press the microphone key assigned the ENTER function. 3 Enter the channel number using the microphone keypad.
For single-digit channel numbers, enter 0 first or press Mic Enter after entering the channel number. For two-digit channel numbers that begin with 1, press Mic Enter after entering the channel number.
Note: You cannot recall an empty Memory Channel. An error beep sounds. You cannot recall the Program Scan Memory Channels (L0/U0 ~ L2/U2), the Priority Channel (Pr), and the Weather Alert Channel (AL) (K market models only) using the numeric keypad. When you recall an odd-split memory channel, + and appear on the display. Press [REV] to display the transmission frequency. After recalling a Memory Channel, you may modify data such as Narrow Band, Tone, or CTCSS. However, these settings are cleared once you select another channel or the VFO Mode. To permanently store the data, overwrite the channel contents.
CLEARING A MEMORY CHANNEL
To erase an individual Memory Channel: 1 Recall the Memory Channel you want to erase. 2 Press [ OFF. ] (Power) (1s) to switch the transceiver ] (Power).

3 Press [MR]+[

An erase confirmation message appears.
4 Press [MR] to erase the channel data.
The contents of the Memory Channel are erased. To quit clearing the Memory Channel, press any key other than [MR].
Note: You can also clear the Priority Channel, the AL Channel, and L0/U0 ~ L2/U2 data. (The Call Channel cannot be cleared.) To clear all Memory Channel contents at once, perform Full Reset {page 67}. You cannot clear channels while in Channel Display Mode.

NAMING A MEMORY CHANNEL

You can name Memory Channels using up to 6 alphanumeric characters. When you recall a named Memory Channel, its name appears on the display in place of the stored frequency. Names can be call signs, repeater names, cities, names of people, etc. In order to use the Memory Name function, the Memory Channel capacity must be set to 100 channels. To change the Memory Channel capacity from 200 to 100, access Menu No. 15 (M.CH) {page 28}. 1 Press [MR] and turn the Tuning control to recall your desired Memory Channel. 2 Press [F], [MENU] and turn the Tuning control to select Menu No. 16 (M.NAME).

Press [MENU].

A blinking cursor appears.

5 Press [MR].

The cursor moves to the next digit.
To move to the previous digit, press [VFO]. To delete the character at the current cursor position, press [F].
6 Repeat steps 4 and 5 to enter up to 6 digits. 7 Press [MENU] to complete the entry.

CTCSS freq.: 100 Hz

CTCSS OFF
SELECTING A CTCSS FREQUENCY
1 Press [F], [MENU] and turn the Tuning control or press Mic [UP]/[DWN] to select Menu No. 3 (CT).
The current CTCSS frequency appears.
Available CTCSS Tone Frequencies
2 Press [MENU] and turn the Tuning control to select your desired CTCSS frequency.
The selectable CTCSS frequencies are the same as those for the Tone frequency. Refer to the table below for the available CTCSS frequencies.

CTCSS FREQUENCY ID SCAN

Note: To use the selected CTCSS tone, you must first turn the CTCSS function ON.
This function scans through all CTCSS frequencies to identify the incoming CTCSS frequency on the received signal. You may find this useful when you cannot recall the CTCSS frequency that the other persons in your group are using. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 3 (CT). 2 Press [MENU] (1s) to start the CTCSS Frequency ID Scan.
While scanning, the decimal point of the CTCSS frequency blinks. To reverse the scan direction, turn the Tuning control or press Mic [UP]/[DWN]. To quit the function, press any key. When a CTCSS frequency is identified, the identified frequency appears and blinks.
DCS is similar to CTCSS. However, instead of using an analog audio tone, it uses a continuous sub-audible digital waveform that represents a 3-digit octal number. You can select a DCS code from among the 104 DCS codes listed in the table below. To activate DCS, press [F], [CALL].
As you press [F], [CALL], the selection cycles as follows: OFF TONE CTCSS DCS OFF. DCS appears on the upper part of display, indicating that the DCS function is activated.
3 Press [MENU] to program the identified frequency in place of the current CTCSS frequency or press any other key to exit the CTCSS Frequency ID Scan.
Turn the Tuning control or press Mic [UP]/[DWN] while the identified frequency is blinking to resume scanning.
When DCS is ON, you will hear calls only when the selected DCS code is received. To answer the call, press and hold Mic [PTT], then speak into the microphone.
Note: You cannot use the DCS function and CTCSS/ Tone functions simultaneously. Switching the DCS function ON after having activated the CTCSS/ Tone functions deactivates the CTCSS/ Tone functions.

AUXILIARY FUNCTIONS

APO (AUTO POWER OFF)
The transceiver switches OFF automatically if no keys or controls are pressed or adjusted for the selected duration. One minute before the transceiver switches OFF, warning beeps sound for a few seconds and APO blinks. You can select the APO time from OFF (disable), 30, 60, 90, 120, or 180 minutes. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 18 (APO). 2 Press [MENU] and turn the Tuning control to select the APO time from OFF (default), 30, 60, 90, 120, or 180 minutes.

BEAT SHIFT

Since the transceiver uses a microprocessor to control various functions of the transceiver, the CPU clock oscillators harmonics or image may appear on some spots of the reception frequencies. In this case, turn the Beat Shift function ON. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 25 (BS). 2 Press [MENU] and turn the Tuning control to select ON or OFF (default).
3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode. 3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode.
Note: APO continues to count even while the transceiver is scanning. The APO timer starts counting down the time when no key presses, no control adjustments, and no PC control command sequences are detected. The APO warning beep sounds even if Menu No. 24 (BP) {page 55} is set to OFF or the volume level is 0.

S-METER SQUELCH

S-meter Squelch causes the squelch to open only when a signal with a strength greater than or the same as the S-meter setting is received. This function relieves you from constantly resetting the squelch when receiving weak stations you have no interest in.
1 Press [F], [MENU] and turn the Tuning control to select Menu No. 8 (SSQ). 2 Press [MENU] and turn the Tuning control to select ON or OFF (default).
2 Press [MENU] and turn the Tuning control to select from OFF (default), 125, 250, and 500 ms.
3 Press [MENU] to store the setting or any other key to cancel. 3 Press [MENU] to store the setting.
The S-meter setting segments appear.

BEEP FUNCTION

The Beep function provides confirmation of entry, error status, and malfunctions of the transceiver. We recommend you leave this function ON in order to detect erroneous operations and malfunctions. 5 Press [F], [REV] to enter S-Meter Level Select Mode. 6 Turn the Tuning control to select your desired level. 7 Press any key other than [ ] (Power) to store the setting and exit S-Meter Level Select Mode. However, to turn the beep function OFF: 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 24 (BP). 2 Press [MENU] and turn the Tuning control to select OFF.

SQUELCH HANG TIME

When using S-meter Squelch, you may want to adjust the time interval between when the received signals drop and when the squelch closes. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 9 (SQH).
3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode. The transceiver generates the following warning beeps even if the Beep function is turned OFF.
APO warning beeps {page 54} Weather Alert beep {page 36} Time-out Timer warning beep {page 62}
Note: The beep output level is linked to the VOL control position.

FREQUENCY STEP SIZE

Choosing the correct frequency step size is essential in selecting your exact receive frequency using the Tuning control or Mic [UP]/[DWN]. You can select your desired frequency step size from: 2.5 kHz, 5 kHz, 6.25 kHz, 10 kHz, 12.5 kHz, 15 kHz, 20 kHz, 25 kHz, 30 kHz, 50 kHz, 100 kHz. To change the frequency step size: 1 While in VFO Mode, press [F], [MENU] and turn the Tuning control to select Menu No. 1 (STP). 2 Press [MENU] and turn the Tuning control to select your desired frequency step size.

BUSY CHANNEL LOCKOUT

This function is used to prevent transmitting on a channel or frequency that somebody else is currently using. When turned ON, an error beep sounds and you cannot transmit even if you press Mic [PTT] while another party is using the channel or frequency. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 22 (BCL). 2 Press [MENU] and turn the Tuning control to select ON or OFF (default).
Note: If you change to a frequency step size that does not match the current operating frequency, the transceiver automatically adjusts the frequency to match the new frequency step size.
3 Press [MENU] to store the setting or any other key to cancel. 56
The default step size for each model is as follows: Market Code K E M2 M3 Default Frequency Step Size 5 kHz 12.5 kHz 12.5 kHz 12.5 kHz 3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode.
Note: Setting the brightness to OFF (minimum level 1) will turn the front panel key backlight OFF.
Note: The market code is printed on the barcode label of the carton box.

DISPLAY BACKLIGHT

You can manually change the display brightness to match the lighting conditions where you are operating the transceiver. This setting can be permanent or the display can light up only when keys are pressed.

Programmable Functions

MONI: Monitor function ON/OFF ENTER: Used to enter a frequency or memory channel number with the keypad 1750: Transmit 1750 Hz VFO: Enter VFO Mode MR: Enter MR Mode CALL: Select the Call Channel MHZ: Enter 1 MHz Step Mode REV: Reverse function ON/OFF (momentary press) and Auto Simplex Checker function ON/OFF (must be held down for 1 second to activate) SQL: Enter Squelch Mode M--V: Memory to VFO transfer M.IN: Store a Memory Channel C.IN: Store the Call Channel MENU: Enter Menu Mode
Note: Turn the transceiver OFF before connecting the microphone. Menu No. 34 (MCL) must be configured to OFF in order to program the microphone keys.
1 Press [F], [MENU] and turn the Tuning control to select one of Menu No. 35 to Menu No. 38 (PF1 ~ PF4).
SHIFT: Shift function ON/OFF LOW: Select transmission power BRIGHT: Adjust display backlight LOCK: Transceiver Lock function ON/OFF (must be held down for 1 second to activate) TONE: Selection for Tone/ Selective Call STEP: Select the frequency step size
Note: Rather than entering Menu Mode and selecting PF1 ~ PF4, you can simply press and hold the PF key you want to program, then turn the transceiver power ON. When programming the PF keys in this manner, select the function by turning the Tuning control or pressing Mic [UP]/[DWN], press [MENU] to store the setting, then press any key other than [MENU] to exit Menu Mode.
3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] to exit Menu Mode. When narrow band FM operation is ON, N appears in the top right of the LCD.
Note: You can store the narrow band FM operation status to the Memory Channels {page 29}.

NARROW BAND FM OPERATION

By default, the transceiver operates in normal FM (5 kHz) mode for both transmission and reception. You can also operate the transceiver in narrow band FM (2.5 kHz). To operate the transceiver in narrow band FM: 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 26 (FMN).

POWER-ON MESSAGE

You can change the Power-on message (a maximum of 6 characters) when the transceiver is turned ON. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 23 (P.ON.MSG). 2 Press [MENU].
The current message and entry cursor appear.
2 Press [MENU] and turn the Tuning control to select ON or OFF (default).
3 Turn the Tuning control to select a character.
1 While in VFO mode, press [F], [MENU] and turn the Tuning control to select Menu No. 7 (P.VFO).
The current programmable frequency range for the band appears.
2 Press [MENU] and turn the Tuning control to select the lower limit frequency (in MHz).

TROUBLESHOOTING

MAINTENANCE GENERAL INFORMATION
This product has been factory aligned and tested to specification before shipment. Under normal circumstances, the transceiver will operate in accordance with these instructions. All adjustable trimmers, coils, and resistors in the transceiver were preset at the factory. They should only be readjusted by a qualified technician who is familiar with this transceiver and has the necessary test equipment. Attempting service or alignment without factory authorization can void the transceiver warranty. When operated properly, the transceiver will provide years of service and enjoyment without requiring further realignment. The information in this section gives some general service procedures requiring little or no test equipment. You may return this product for service to the authorized KENWOOD dealer from whom you purchased it, or any authorized KENWOOD service center. A copy of the service report will be returned with the transceiver. Please do not send subassemblies or printed circuit boards; send the complete transceiver. Tag all returned items with your name and call sign for identification. Please mention the model and serial number of the transceiver in any communication regarding the problem.

SERVICE NOTE

If you desire to correspond on a technical or operational problem, please make your note short, complete, and to the point. Help us help you by providing the following:
Model and serial number of equipment Question or problem you are having Other equipment in your station pertaining to the problem Meter readings Other related information (menu setup, mode, frequency, key sequence to induce malfunction, etc.)

SERVICE

If it is ever necessary to return this equipment to your dealer or service center for repair, pack it in its original box and packing material. Include a full description of the problems experienced. Include your telephone number, fax number, and e-mail address (if available) along with your name and address in case the service technician needs to call you for further information while 14 investigating your problem. Do not return accessory items unless you feel they are directly related to the service problem. 66
Do not pack the equipment in crushed newspapers for shipment! Extensive damage may result during rough handling or shipping.
Note: Record the date of purchase, serial number and dealer from whom this product was purchased. For your own information, retain a written record of any maintenance performed on this product. When claiming warranty service, please include a photocopy of the bill of sale, or other proof-of-purchase showing the date of sale.

1 Switch OFF the power, then insert the microphone plug until the locking tab clicks in place. 2 Press [F], [MENU] and turn the Tuning control to select Menu No. 5 (SFT). Press [MENU] and turn the Tuning control to select OFF. Press [MENU] to store the setting, then press any key other than [MENU] to exit Menu Mode. 3 Press Mic [PTT] after the TNC has finished transmitting.

SPECIFICATIONS

Specifications are subject to change without notice due to advancements in technology.
General K market models TX frequency range E market models M2, M3 market models M4 market models K market models RX frequency range E market models M2, M3 market models M4 market models Mode Antenna impedance Usable temperature range Power supply Grounding method Current Transmit (max.) Receive (at 2 W output) Frequency stability (20 C ~ +60 C) Dimensions (W x H x D projections not included) Weight 144 ~ 148 MHz 144 ~ 146 MHz 136 ~ 174 MHz 144 ~ 148 MHz 136 ~ 174 MHz 136 ~ 174 MHz 136 ~ 174 MHz 144 ~ 148 MHz F3E (FM) C ~ +60 C (4 F ~ +140 F) 13.8 V DC 15% (11.7 ~ 15.8 V) Negative ground M4 market models: 8 A or less All other market models: 13 A or less 1.0 A or less Within 2.5 ppm 160 x 43 x 137 mm/ 6

5/16"

x 1 11/16" x 5 13/32"

Approx. 1.2 kg/ 2.6 lb

Transmitter Power output Modulation Spurious emissions Maximum frequency deviation Audio distortion (at 60% modulation) Microphone impedance
Receiver Circuitry Intermediate frequency (1st/ 2nd) Sensitivity (12 dB SINAD) Selectivity (6 dB) Selectivity (60 dB) Squelch sensitivity Audio output (8 , 5% distortion) Audio output impedance Double conversion superheterodyne 49.95 MHz/ 450 kHz Wide: 0.18 V or less Narrow: 0.22 V or less Wide: 12 kHz or more Narrow: 10 kHz or more Wide: 30 kHz or less Narrow: 24 kHz or less 0.1 V or less 2 W or higher 8

High Low

M4 market models: 25 W All other market models: 60 W Approx. 25 W Reactance 60 dB or less Wide: 5 kHz Narrow: 2.5 kHz 3% or less 600
1750 Hz.. 25 Accessories Optional.. 65 Supplied.. 1 All-Channel Scan.. 42 Automatic Power Off.. 54 Automatic Repeater Offset. 25 Automatic Simplex Check. 26 Automatic Dialer. 51 Band Scan.. 40 Beat Shift.. 54 Beep Function. 55 Busy Channel Lockout. 56 Call Channel Changing.. 35 Recalling.. 35 Call Scan.. 43 Channel Display. 37 Continuous Tone Coded Squelch System (CTCSS) Freq. ID Scan.. 47 Selecting a Frequency. 47 Using.. 46 Data Communication Speed.. 58 Digital Code Squelch (DCS) Code ID Scan.. 49 Selecting a Code.. 48 Using.. 48 Display Backlight.. 57 LCD. 10 Dual Tone Multi-Frequency (DTMF) Automatic Dialer. 51 Confirming a Stored Number. 52 Lock. 53 Manual Dialing.. 50 Monitor.. 50 Pause Duration. 53 Storing in Memory.. 51 Tone Transmission Speed. 52 Transmitting a Stored Number. 52 TX Hold. 51 Frequencies, Selecting Direct Frequency Entry. 16 MHz Mode. 16 VFO Mode. 15 Frequency Step Size. 56 Full Reset. 67 Fuses, Replacing.. 5 Group Scan.. 42 Installation.. 2 Accessory Connections. 6 Antenna Connection. 5 DC Power Cable Connection, Fixed Station.. 4 DC Power Cable Connection, Mobile.. 3 PC Connection.. 6 TNC Connection. 7 Keypad Direct Entry. 13 Keys and Controls.. 9 Lock Function.. 58 Maintenance.. 66 Manual Dialing. 50 Memory Channels Clearing.. 31 Lockout. 44 Naming. 32 Recalling.. 30 Storing, Odd-split. 30 Storing, Simplex. 29 Transfer to VFO. 33 Menu Access.. 18 Function List. 19 MHz Mode.. 16 MHz Scan. 41 Microphone Control.. 63 Lock. 64 PF Keys.. 59 Narrow Band FM.. 60 Offset Automatic Repeater. 25 Direction.. 23 Frequency.. 23 Power-on Message.. 60 Power ON/ OFF.. 14 Priority Scan Programming.. 43 Using.. 44 Program Scan Frequency Range.. 40 Using.. 41 Programmable Function (PF) Keys. 59 Repeater Operation. 22 Reset Full.. 67 VFO. 68 Reverse Function. 26 Scan All-Channel.. 42 Band.. 40 Call.. 43 Group.. 42 MHz. 41 Priority.. 43 Program.. 41 Resume Method. 45 Specifications.. 71 Squelch Adjusting.. 14 Hang Time. 55 S-meter. 54 Time-out Timer (TOT). 62 Tone 1750 Hz Tone.. 25 Activating.. 24 Freq. ID Scan.. 27 Selecting.. 24 Transmitting.. 15 Output Power.. 15 Troubleshooting.. 69 Tuning Control Unlock. 58 VFO Mode.. 15 Programmable.. 61 Reset.. 68 Volume, Adjusting. 14 Weather Alert Enabling.. 36 Programming.. 36