FM TRANSCEIVER UBZ-LJ8 INSTRUCTION MANUAL
CONTENTS INTRODUCTION ....................................................................... 1 SUPPLIED ACCESSORIES .......................................................... 1 PRECAUTIONS ........................................................................ 2 ORIENTATION .......................................................................... 3 CONTROL FUNCTIONS ............................................................. 3 DISPLAY ....................................................................
INTRODUCTION Thank you for purchasing this KENWOOD Private Mobile Radio 446 (PMR446). This KENWOOD product is a precision device. Treat it with care, and you will enjoy years of reliable operation. PMR446 refers to personal short range Private Mobile Radios for family and friends to keep in touch without the need for a licence, radio knowledge, or monthly charges. Your KENWOOD PMR446 is called a “transceiver”, meaning transmitter and receiver.
PRECAUTIONS • Refer service to qualified technicians only. Do not modify or attempt to adjust the transceiver for any reason. • Do not expose the transceiver to long periods of direct sunlight, nor place it close to heating appliances. • Do not place the transceiver in excessively dusty, humid, and/ or wet areas, nor on unstable surfaces. • Avoid extremes in exposure to weather, heat, and cold. This transceiver can be used in mild weather conditions, but it is not waterproof.
ORIENTATION Antenna VOL control Display PTT switch SP/MIC jacks ▲ key Power switch ▼ key key Microphone Speaker CONTROL FUNCTIONS PTT (Push-to Talk) switch: Press this switch then speak into the microphone to make a call. Release the switch to receive. ▲ key: Press to increase the channel or group mode number, and to turn selected functions ON or OFF. ▼ key: Press to decrease the channel or group mode number, and to turn selected functions ON or OFF. VOL control: Rotate to adjust the volume level.
DISPLAY Appears when the transceiver controls have been locked (page 20). Displays the remaining battery power (page 13). Appears when the Secret Mode has been activated (page 11). appears and blinks when Secret Mode can be turned ON or OFF (page 11). Appears when the Auto Power Off function has been activated (page 14). Appears while scanning (page 14). Appears while the VOX function is in use (page 16). Appears while transmitting.
PREPARATION INSTALLING/ REMOVING BATTERIES This transceiver requires 3 LR6 (AA) batteries. Use high quality alkaline batteries to enjoy longer periods of battery life. You can also use an optional UPB-1 NiCd battery pack. When using an optional battery pack, be sure to set the battery indicator type to battery pack, from its default setting of alkaline batteries. Refer to page 13 for details on how to set the indicator type.
Battery installation Battery pack installation Label Contacts Ribbon 3 Align the battery cover tabs with the slots on the transceiver, hold the cover in place, then latch it with the battery cover lock. Note: ◆ Do not mix old and new batteries or batteries of different types. ◆ When you do not use the transceiver for an extended period of time, remove the batteries from the transceiver. SETTING THE ANTENNA Before using the transceiver, be sure to raise the antenna.
INSTALLING/ REMOVING THE BELT CLIP 1 To install the belt clip, align the clip with the guides on the rear of the transceiver, then slide the belt clip up until it latches in place. 2 To remove the belt clip, press the locking latch in then slide the belt clip down before pulling it away from the transceiver.
INSTALLING/ REMOVING OPTIONAL ACCESSORIES Note: Always switch OFF the transceiver power when installing or removing the optional accessories. The following accessories can be used with this transceiver: • EMC-3 Clip Microphone and Earphone • HMC-3 VOX/PTT Headset • KHS-21 Headset • SMC-32 Speaker-Microphone • SMC-33 Speaker-Microphone • SMC-34 Speaker-Microphone To install these accessories: 1 Open the SP/MIC tabs on the side of the transceiver. 2 Insert the accessory’s plugs into the SP/MIC jacks.
GETTING STARTED q Switch the Power ON by pressing and holding the switch for approximately 1 second. • A confirmation tone sounds. To switch the transceiver power OFF, press and hold the switch again for 1 second. w Adjust the Volume by rotating the VOL control. • Clockwise increases the volume and counterclockwise decreases the volume. e Select a Channel from 1 to 8 by pressing the ▲ and ▼ keys. • A confirmation tone sounds each time you press a key.
GROUP MODE Group Mode is a function which allows you to reject signals from undesired parties that are using the same channel as you. You will hear audio from the speaker only when you receive a signal that matches your Group Mode number. Likewise, when you transmit on a channel set up with a Group Mode number, the receiving station must have a matching Group Mode number in order to hear your call. You can select a Group Mode number from 1 to 38 (or OFF).
SECRET MODE Whereas the Group Mode function (page 10) allows you to ignore unwanted calls, Secret Mode allows you to hold a conversation in complete privacy. When activated, any other party listening in on your channel will be unable to understand your conversation. The transceiver scrambles your voice so that anybody listening in on your conversation will not be able to understand what you are saying.
MENU SETTINGS Your transceiver has a hidden setting menu which allows you to adjust a variety of features to your desired settings. To enter Menu Setting: 1 Press and hold the ▲ key while turning the transceiver power ON. 2 To view the various settings, press the ▲ or ▼ key.
3 Press the PTT switch or turn the transceiver power OFF to confirm your setting. BATTERY INDICATOR/ BATTERY TYPE The battery indicator on the display lets you know approximately how much battery life is remaining. When the battery voltage becomes too low while transmitting, the transceiver stops transmitting and a tone sounds until you release the PTT switch. Recharge or replace the battery pack at this time.
AUTO POWER OFF (APO) Auto Power Off is useful when you unintentionally leave the transceiver power ON. This function saves battery consumption. After two hours elapse with no controls adjusted or activated and no calls received, APO turns the transceiver power OFF. One minute before power is turned OFF, a warning tone sounds (even if the beep tone has been turned OFF). 1 Enter the Menu Settings (page 12) and press the ▲ or ▼ key until you reach the “APO” display.
Before you can use the Auto Channel Select function, ensure that it is activated. You can add or remove this function to/ from your transceiver using the Menu Settings: 1 Enter the Menu Settings (page 12) and press the ▲ or ▼ key until you reach the “SCAN” display. 2 key to remove Auto Channel Press the Select from your transceiver ( ) or add it to your transceiver ( ). 3 Press the PTT switch or turn the transceiver power OFF to confirm your setting.
4 To end the scan at any time, press the ▲, ▼, or key. VOICE ACTIVATED CONTROL (VOX) Using the VOX feature, you can operate the transceiver hands-free. For best operating conditions, we recommend you use an optional headset with both an ear piece and a microphone on a boom that rests in front of your mouth. With VOX activated, your voice level will determine when the transceiver transmits.
When operating VOX, if you find that the transceiver returns to receive mode too quickly after you stop speaking, the end of your message may not be transmitted. To avoid this, select an appropriate delay time to allow your entire message to be transmitted. However, do not make the delay overly long. 1 Enter the Menu Settings (page 12) and press the ▲ or ▼ key until you reach the ” display. “VOX • This menu is only available if the VOX Gain Level has been set to any value other than OFF ( ).
CALLING ALERT TONES Calling Alert Tones are used to identify yourself to your party members. You can set up a Calling Alert Tone to one of ten types. If each party member uses a different tone, it is easy to know who is making the call. To select your Calling Alert Tone: 1 Enter the Menu Settings (page 12) and press the ▲ or ▼ key until you reach the “ ” (Calling Tone) display. 2 Press the key. • The current Calling Alert Tone number blinks and the Calling Alert Tone sounds.
SQUELCH When no signals are present, the squelch on the transceiver automatically mutes the speaker so you will not hear background noise. You can however, deactivate the squelch. This feature is useful for a variety of reasons: • It allows you to confirm the channel activity so that you don’t make a call while another party is using the same channel. • It allows you to adjust the volume level without having to wait for a call.
OPERATING FEATURES KEY LOCK You can lock the ▲, ▼, and keys to prevent accidentally changing the channel and channel settings. Additionally, while the transceiver is locked, you cannot enter the Menu Settings (page 12). key for 1 second to Press and hold the lock or unlock the transceiver keys. • The icon appears on the display when the transceiver keys are locked. No icon appears when they are unlocked.
TRANSMIT POWER SAVER The purpose of the Transmit Power Saver is to prevent you from transmitting continuously for a long time. This function is useful, for example, when you accidentally keep the PTT switch pressed. If you continuously transmit for 3 minutes, the transceiver will stop transmitting and a tone will sound. To stop the tone, release the PTT switch. You can press the PTT switch again to resume transmitting. The 3 minute timer cannot be adjusted.
LOUDNESS This transceiver has a built in booster amplifier. You can control the volume level by rotating the VOL control. However, if you are in an environment with excessive ambient noise, you may find that it is difficult to hear the audio from the transceiver, even with the volume increased to its maximum value. In such a case, you can switch the internal booster amplifier ON to further increase the volume level. switch to enter 1 Momentarily press the the Loudness setting.
RESETTING THE TRANSCEIVER At some point in time, you may desire to reset the transceiver settings to their default values. The default values of all the menus and channel settings are listed in the table below. To reset the transceiver: 1 Turn the transceiver power OFF. 2 Press and hold the ▲ and ▼ keys while turning the transceiver power ON. • 3 appears on the display. (“LJ8” is the transceiver model name.) Release the keys to reset the transceiver. Menu Name Available Settings Default Ref.
OPTIONAL ACCESSORIES SE NS .
SMC-34 SPEAKER-MICROPHONE The SMC-34 speaker-microphone provides you with the following additional functions and features. • Remote VOLUME control. • Remote PTT switch. • Remote speaker-microphone. 1 Key 3 Key 2 Key 1 2 3 VOLUME PTT switch MIN Speaker/ microphone VOLUME control Rotatable clip K LOC ON LOCK switch Earphone jack MONITOR Monitor operates similar to the transceiver’s squelch function, but can be used momentarily, at short notice.
SPECIFICATIONS TRANSCEIVER SPECIFICATIONS RF Output Power 500 mW Frequency Stability 4 ppm Operating Voltage 3.4 V ~ 5.0 V DC Dimensions (projections not included) 56 x 26 x 100 mm (2 13/64 x 1 1/64 x 3 15/16 in) Weight (with 3 LR6 (AA) batteries) 180 g (6.3 oz) CHANNEL FREQUENCY CHART Channel Number 26 Transmit/ Receive Frequency 1 446.00625 MHz 2 446.01875 MHz 3 446.03125 MHz 4 446.04375 MHz 5 446.05625 MHz 6 446.06875 MHz 7 446.08125 MHz 8 446.
GROUP MODE NUMBERS Display Group Mode Display Group Mode Display Group Mode Number Frequency Number Frequency Number Frequency OF OFF 13 103.5 Hz 26 162.2 Hz 1 67.0 Hz 14 107.2 Hz 27 167.9 Hz 2 71.9 Hz 15 110.9 Hz 28 173.8 Hz 3 74.4 Hz 16 114.8 Hz 29 179.9 Hz 4 77.0 Hz 17 118.8 Hz 30 186.2 Hz 5 79.7 Hz 18 123.0 Hz 31 192.8 Hz 6 82.5 Hz 19 127.3 Hz 32 203.5 Hz 7 85.4 Hz 20 131.8 Hz 33 210.7 Hz 8 88.5 Hz 21 136.5 Hz 34 218.1 Hz 9 91.5 Hz 22 141.3 Hz 35 225.7 Hz 10 94.8 Hz 23 146.2 Hz 36 233.6 Hz 11 97.
TROUBLESHOOTING GUIDE Problem Solution Cannot turn the transceiver power ON. • The batteries or battery pack may be dead. Replace the batteries or recharge or replace the battery pack. • The batteries may not be installed correctly. Remove the batteries and install them again. • The battery pack life is finished. Replace it. Battery power dies shortly after charging. Cannot talk to or hear other members in your group. Other voices (besides group members’) are present on the channel.
