INSTRUCTION MANUAL 144 MHz FM TRANSCEIVER TM-281A 144 MHz FM TRANSCEIVER TM-281E Ken wood Corporation NOTIFICATION Hor use in the 1803168 ENGLISH ares of 13g In Certain countries. below.
THANK YOU! Thank you for choosing this Ken wood transceiver. Ken wood always provides Amateur Radio products which surprise and excite serious hobbyists. This transceiver is no exception. As you learn how to use this transceiver, you will find that Ken wood is pursuing “user friendliness”. For example, each time you change the Menu No. in Menu mode, you will see a text message on the display that lets you know what you are configuring.
NOTICES TO THE USER One or more of the following statements may be applicable: FCC WARNING This equipment generates or uses radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user cold lose the authority to operate this equipment if an unauthorized change or modification is made.
mere RR SUPPLIED ACCESSORIES... WRITING CONVENTIONS FOLLOWED IN THIS MANUAL... neon evasiveness 1 GE) MOBILE INSTALLATION DC POWER CABLE CONNECTION Mobile Operation Fixed Station Operation. Replacing ANTENNA CONNECTION ACCESSORY CONNECTIONS External Speaker. Microphone... PC Connection . | CHAPTER 6) | Firstborn 650 [CHAPTER @ ] [3 GETTING ACQUAINTED FRONT PANEL. DISPLAY... 10 REAR PANEL 12 MICROPHONE. 12 Mic Keypad Dinner Entrap 13 CEE OPERATING BASICS SWITCHING THE POWER ON/OFF.
SUPPLIED ACCESSORIES After carefully unpacking the transceiver, identify the items listed in the table below. We recommend you keep the box and packaging for shipping. A market area code (K, E, M2) can be found on the label attached to the package box. WRITING CONVENTIONS FOLLOWED IN THIS MANUAL The writing conventions described below have been followed to simplify instructions and avoid unnecessary Accessory oy M2 market (KM-30) Microphone K, E market (TMF Mic) 1 K, M2 market {Tube} repetition.
Ze] MOBILE INSTALLATION To install the transceiver, select a safe, convenient location inside your vehicle that minimizes danger to your passengers and yourself while the vehicle is in motion. Consider installing the unit at an appropriate position so that knees or legs will not strike it during sudden braking of your vehicle. Try to pick a well ventilated location that is shielded from direct sunlight.
DC POWER CABLE CONNECTION Locate the power input connector as Gloss to the transceiver as possible. Motile Ope Ration The vehicle battery must have a nominal rating of 12 V. Never connect the transceiver 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.
Fixes Station Ope Ration In order to use this transceiver for fixed station operation, [1] you will need a separate 13.8 V DC power supply (not included). The recommended current capacity of your power supply is 14 Aor more. 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.
Reproach 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 Ken wood dealer or an authorized Ken wood service center for assistance. Transceiver Supplied Accessory DC Power Cable 220A ANTENNA CONNECTION Before operating, install an efficient, well-tuned antenna.
ACCESSORY CONNECTIONS Micro Phone For voice communications, connect a 600 Q microphone External Shaker equipped with an 8-pin modular plug into the modular If you plan to use an external speaker, choose a speaker socket an the front of the main unit. Press firmly on the with an impedance of 8 Q. The external speaker jack plug until the locking tab clicks. accepts a 3.5 mm mono (2-conductor) plug. We recommend using the SP-50B speaker.
PC Connection To utilize the optional MP-1 A software, you must first connect the transceiver to your PC using an optional Programming Cable (via the microphone jack) The MCP-1A Is free downloadable software available from Ken wood at the following URL: Note: Ask your dealer about purchasing a Programming Cable.
YOUR FIRST QSO Are you ready to give your transceiver a quick try? Reading this section should get your voice on the air right away. The instructions below are intended only as a quick guide. If you encounter problems or there is something you would like to know more, read the detailed explanations given later in this manual. @ Press [ d] (Power) briefly to switch the transceiver power ON. + A high pitched double beep sounds and a Power-on message appears momentarily.
FRONT PANEL Note: This section describes only the main functions of the front panel controls. Explanations for functions not described here are provided in the appropriate sections of this instruction manual. (Power) switch’ Volume control Press to switch the transceiver power ON or OFF {page 14}. Turn to adjust the level of the receive audio from the speaker {page 14}. 2) MENU button/ Tuning control Press to enter MHz Mode {page 16}.
In MR Made, press [F] then press [VFO] to transfer the contents of the selected Memory Channel to the VFO {page 33}. > MR key Press to enter Memory Recall Mode {page 30}. In this mode, you can change memory channels using the Tuning control or Mic Press and hold for 1 second while in Memory Recall Mode to begin Memory Scan {page 42}. oy Press [F]. use the Tuning control to select the desired channel, then press [MR] to reprogram the Call Channel or a Memory Channel {page 28}.
en Appears when the Automatic Simplex Check (ASC) function is activated {page 26}. © PRI Appears when the Priority Scan function is activated {page 43}. © WX Appears when the Weather Alert function is activated {page 36}. (K market models only.) ON Appears when narrow FM Mode is selected {page 60}. Okeechobee; Displays the frequencies, Menu settings, Memory name and other information. # 087 Displays the Menu No., Memory Channel number, and status {pages 18, 29}.
REAR PANEL {1 Antenna connector Connect an external antenna {page 5} here. When making test transmissions, connect a dummy load in place of the antenna. The antenna system or load should have an impedance of 50 Q. Note: E market models use an N-type antenna connector while other motels use an M-type (SO-288) connector. {2} Power Input 13.8 V DC cable Connect a 13.8 V DC power source here. Use the supplied DC power cable {pages (speaker) jack I desired, connect an optional external speaker for clearer audio.
{@ CALLA key Mic Keven Direct Entry Identical to the front panel CALL key. This key can be The microphone keypad (keypad models only) allows you reprogrammed if desired {page 59}. Press and hold to make various entries depending on which mode the Mic [PT, then press [CALL/A] to transmit A. transceiver is in. (5) FOIBLE key In VFO or Memory Recall meed, use the Mic keypad to select a frequency {page 16} or Memory Channel number Identical to the front panel VFO key. This key can be {page 30}.
OPERATING BASICS SWITCHING THE POWER ON/OFF 1 Press [db] (Power) to switch the transceiver power ON. + High pitched double beep sounds and a Power-on message {page 60} appears briefly, followed by the frequency and other indicators. > boy mr | i aly switch the transceiver OFF, press [& ] (Power) (1s). When you tum the transceiver OFF, a low pitched double beep sounds.
TRANSMITTING 1 To transmit, hold the microphone approximately § cm (2 inches) from your mouth, then press and hold Mic {PTT] and speak into the microphone in your normal tone of voice + “EY” and the RF Power meter appears. The RF Power meter shows the relative transmit output power (TI £31 E31 £21 £71 41 CTE) » If you press Mic {PTT] while you are outsides the transmission coverage, a high pitched error beep sounds. 2 When you finish speaking, release Mic [PT.
MHz Mope Direct Frequency Entry If the desired operating frequency is far away from the In addition 1o turning the Tuning control or pressing Mic current frequency, it is quicker to use the MHz Tuning [UPI[DWN], there is another way to select the frequency. Mode. When the desired frequency is far away from the current frequency, you can directly enter a frequency using the Mic keypad (keypad models only). 1 Press [VF. ‘You must be in VFC mode to make a direct frequency entry.
Example 1 Vote: Ihe entered frequency does not match he arrant frequency step size, the frequency is automatically rounded down to the next To enter 145.750 MHz. available frequency. When the desired frequency cannot be entered exactly, confirm the frequency step size {page 56). Key in Display [Eater] = 11. [41 8] 145 71, 181. [0] 145.750 Example 2 To enter 145.000 MHz: Key in Display Enter] 145 {Enter] 145.000 Example 3 To change 144.650 MHz to 145.650 MHz: Kevin Display 144.
[EE WHAT IS A MENU? Many functions on this transceiver are selected or configured via a software-controlled Menu rather than through the physical controls of the transceiver. Once you become familiar with the Menu system, you will appreciate its versatility. You can customize the various timings, settings, and programming functions on this transceiver to meet your needs without using many controls and switches. MENU ACCESS 1 Press [F]. [MENU]. + Brief explanation of the menu, and the setting and Menu No.
MENU FUNCTION LIST Sane Mer Function Selections Del fo STP 1 Frequency step size 25 518280 IEEE 55 T 2 Tone frequency 67.0 ~ 254.1 Hz 88.5 24 CT 3 CSS frequency 67.0 ~ 254.1 Hz 83.5 47 DCS 4 DCS code 023 ~ 754 023 48 SFT 5 Shift direction OFF/ + — OFF 23 TXP 6 Transmission power High/ Low High 15 P.VFO 7 Programmable VFO 136 ~ 173 MHz 136 ~ 173 MHz = 61 SSQ 8 S-Meter squelch ON/ OFF OFF 54 SQH 9 Squelch hang time OFF/ 1257 250/ 500 ms OFF 55 OFFSET 10 Repeater offset frequency 0 ~ 69.
Ste Ha Function Selections peat BF cK 19 [CALL key CALL 1750 . ee 25,35 HLD 20 [1750 Hz tone TX hold ON/ OFF OFF 25 TOT 21 |Time-out Timer 3/ 5/ 10 min. 10 62 BCL 22 |Busy Channel Lockout ON/ OFF OFF 56 P.ON.MSG 23 |Power-on message 6 characters |Beep ON/ OFF |Beat Shift ON/ OFF OFF 54 FMN 26 |Narrow FM ON/ OFF OFF 60 ENC 27 [Tuning control lock ON/ OFF OFF 58 DTMF.
Fd Mary Sanction Selections Delta — MINI ENTER/ 1750/ VFO! MR/ CALL PF 2 as Microphone programmable MHZ/ REV/ SQL/ M--V/ M.IN/ C.IN/ MR 59 function key MENU! SHIFT/ LOW/ BRIGHT/ LOCK? TONE/ STEP MINI ENTER/ 1750/ VFO! MR/ CALL Microphone programmable MHZ/ REV/ SQL/ M--V/ M.IN/ C.IN/ PF 3 37 unction key MENU SHIFT/ LOW! BRIGHT LOCK/ VFO 58 TONE! STEP MINI ENTER/ 1750/ VFO/ MR/ CALLS Microphone programmable MHZ/ REV/ SQL/ M--V/ M.IN/ C.
OPERATING THROUGH REPEATERS Repeaters, which are often installed and maintained by radio clubs, are usually located on mountain tops or other elevated locations. They generally operate at higher ERP (Effective Radiated Power) than a typical station. This combination of elevation and high ERP allows communications over much greater distances than communicating without using repeaters. Most repeaters use a receive and transmit frequency pair with a standard or non-standard offset (odd-split).
PROGRAMMING AN OFFSET S Electing AN OFFSET FREQUENCY You must first select an amateur radio repeater To access a repeater which requires an odd-split down link frequency as described in “Sectioning an Off Set frequency pair, change the offset frequency from the Frequency” default which is used by most repeaters. The default cosset frequency is 600 kHz. Serena an Order Direction 1 Press [F], [MENU] and turn the Tuning control to Select whether the transmit frequency will be higher select Menu No.
Vacant THe Tone Function To activate Tone, press [F], [CALL]. s you press [F], [CALL] the selection cycle: FF” — “TONE” = “CSS” = “DCS” — “OF “T" appears on the upper part of the display, indicating that the Tone function is activated. follows: Note: You cannot Use the Tone function and LACTOSE/ DCS functions simultaneously. Switching the Tone function ON alter having activated the CSS/ DCS functions deactivates the CSS/ DCS functions. 3 Press [MENU] to store the setting or any other key to cancel.
AUTOMATIC REPEATER OFFSET This function automatically selects an offset direction, according fo the frequency on the VHF band. The transceiver is programmed for an offset direction as shown below. To obtain an up-to-date band plan for repeater offset direction, contact your national Amateur Radio association. K market version only 1440 1455 6A 1470 ATE ‘ 1480 468 1474 480MM: 5.1 Simplex This corn plies with the standard ARR band plan. E market version only 128.0 1456 1658 160MM 5.
REVERSE FUNCTION Note: ® You can turn the Reverse function ON when you are operating in The reverse function exchanges a separate reception Simplex Mode. However, it does not change the Transmission/ i" Reception frequencies. and transmission frequency. So, while using a repeater, oi [REV] snaps fh fon side th B pressing places the reception frequency outside the you can manually check the strength of a signal that you allowable range.
Note: + To quit the function, press any key. «Pressing [PTT] causes the “EX icon to quit blinking + When the tons frequency is identified, a beep sounds and # ASC can be activated while operating in Simplex Mode. the identified frequency blinks.
MEMORY CHANNELS In Memory Channels, you can store frequencies and related data that you frequently use so that you do not need to reprogram that data every time. You can quickly recall a programmed channel through simple operation. Total of 200 Memory Channels (100 when using the Memory Name function) are available for storing frequencies, modes, and other operating conditions.
The data listed below can be stored in each Memory Channel: Parameter ee Oct-Spiit Receive frequency Yes Transmit frequency Yes Yes Tone frequency Yes Yes Tone ON Yes Yes CSS frequency Yes Yes CSS ON Yes Yes DCS code Yes Yes DCS ON Yes Yes Offset direction Yes N/A Offset frequency Yes N/A Reverse ON Yes NA Frequency step size Yes Yes Narrow band FM Yes Yes Beat Shift Yes Yes Memory Channel lockout Yes Yes Memory Channel name Yes Yes Yes: Can be stored in memory, N/A: Cannot be stored in memory.
+ Memory Channel numbers LOUGH ~ L2/U2 {page 40}, Pr {page 43}, and AL (Weather Alert} {page 36) (K market models only) are reserved for other functions. 5 Turn the Tuning control or press Mic to select the Memory Channel in which you want to store the data. 6 Press [MR] io store the data to the channel. STORING ODD-SPLIT REPEATER FREQUENCIES Some repeaters use a pair of reception and transmission frequencies with a non-standard offset.
Using THE Microphone Keypad CLEARING A MEMORY CHANNEL You can also recall a Memory Channel by entering a To erase an individual Memory Channel: peered Memory Channel number with the microphone 1 Recall the Memory Channel you want to erase. 2 Press [] (Power) (18) to switch the transceiver OFF. 2 Press the microphone key assigned the ENTER 3 Press [MRI+[ &] (Power). function. + An eras confirmation message appears. 1 Press [MR] to enter Memory Recall mode.
NAMING A MEMORY CHANNEL You can name Memory Channels using up to 8 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, ete. 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. 18 (M.CH) {page 28}.
MEMORY CHANNEL TRANSFER CHANNEL wb CHANNEL TRANSFER Weaponry wb VEO Temptress Channel o another. This clonal wet when string After retrieving frequencies and associated data from frequencies and associated data that you temporarily Memory Recall Mode, you can copy the data to the VFO. change in Memory Recall Mode.
The tables below illustrate how data is transferred Frequency step size Frequency step size Memory Channel name’ Memory Channel name! Memory Channel name’ Memory Channel name’! Memory Channel Lockout ON Memory Channel Lockout OFF Memory Channel Lockout ON/ OFF Memory Channel Lockout ON/ OFF Narrow FM ON/ OFF Narrow FM ON/ OFF between Memory Channels. Channel Lou L202, Pr, ALE Receive frequency -» Receive frequency Channel Channel 01+ 59 quench ~ decency . .
CALL CHANNEL REPROGRAMMING THE CALL CHANNEL Call Channel default settings: 1 Select your desired frequency and related data (Tone, + On K and M market models, pressing [CALL] changes the CSS, DCS, or offset direction, efface. transceiver to the Call Channel, «When you program the Call Channel as an odd-split On E market models, pressing [CALL] causes the channel, select a reception frequency first. transceiver to transmit a 1750 Hz phone {page 25}. 2 Press [F].
Note: 4 When you recall an odd-split Call Channel, * the display. 4 Transmit offset status and Reverse status are not stored in an odd-split Call Channel. "and appear on WEATHER ALERT (K Marker Mo pets Only) Any of the NOVA Weather Radio channels can be programmed to the AL memory channel of the transceiver.
4 Press any key other than [MENU] fo exit Menu Mode. » The transceiver automatically changes to the AL channel. + The Tone, CSS, and DCS functions cannot be configured to the AL channel + Priority Scan is set to OFF automatically when the Weather Alert function is turned ON, 5 To exit Weather Alert Mode, press [MENU], select Menu No. 42 (WAX, and set it to “OFF” (default). To monitor another frequency while monitoring the Weather Radii in the background: 1 Perform step 1 ~ 4, above.
While in Channel Display mode, you cannot activate the following functions: + VFO Mode + VFO Scan = Callao Scan * MHz Scan + Scan Direction + Memory Store = Memory to VFO Transfer = Memory to Memory Transfer + Clear Memory Channel + VFO Reset + Full Reset + 1 MHz Step + Selection for Tone and Selective Call + Auto Simplex Checker + Menu Mode To recover normal operation, turn the transceiver power OFF and press [REVIVE & ] (Power) again. Note: «To enter the Channel Display Mods.
Sean is a useful function for hands-off monitoring of your favorite frequencies. By becoming comfortable with all types of scan, you will increase your operating efficiency. This transceiver provides the following types of scans. Note: * When the CSS or DCS function is activated. the transceiver stops at a busy piquancy and decodes the CSS tone of DCS code. If the tone or code matches.
NORMAL SCAN When you are operating the transceiver in VFO Mode, 3 types of scanning are available: Band Scan, Program Scan, and MHz Scan. Brno Scan The transceiver scans the entire band of the frequency you selected. For example, if you are operating and receiving at 144.525 MHz, it scans all the frequencies available for the VHF band. (Refer to receiver VFO frequency range in the specifications {page 72}.
7 Turn the Tuning control or press Mic to MHz Scan select a matching Memory Channel from For example, if you have selected “LO” in step 3, select Memory Channel “U0”. TTI 1 Press [VFO] and turn the Tuning control or press Mic i HURT [Leiden] to select a frequency in which to perform Ls ann Ee MHz Scan allows you to scan an entire 1 MHz frequency range within the current VFO frequency. lw If you want to scan the entire 145 MHz frequency, select any frequency between 145.000 and 145.
MEMORY SCAN Memory Scan monitors Memory Channels in which you have stored frequencies. ALL-CHANNEL Scan The transceiver scans all of the Memory Channels in which you have stored frequencies. 1 Press [MR] (1s). * Scan starts from the last Memory Channel number and ascends up through the channel numbers (default). + To jump to a desired channel while scanning, quickly turn the Tuning control. + To reverse the scan direction, turn the Tuning control or press Mic [UPLAND.
CALL SCAN You can alternate between monitoring the Call Channel and the current operating frequency. 1 Select the frequency (in VFO or Memory Recall Mode) you want to monitor. + In VFO Mode, turn the Tuning control or press Mic [UPWIND] to select the desired frequency. In Memory Recall Mode, turn the Tuning control or press Mic JUPITER] to select the Memory Channel you want to monitor. 2 Press [CALL] (1s) to start the Call Scan.
Using Priory Scan 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 12 (PRIG. Press [MENU] and turn the Tuning corolla to select “ON” or “OFF” (default). Press [MENU] fo store the setting or any other key to cancel. + “PRI” appears. Press any key other than [MENU] to exit Menu Mode. The transceiver checks for a signal on the Priority Channel every 3 seconds. + When the transceiver detects a signal on the Priority Channel, “Pr” blinks and the frequency changes to the Priority Channel.
SCAN RESUME METHOD The transceiver stops scanning at the frequency (or Memory Channel) where a signal is detected. It then continues or stops scanning according io which Resume Mode you have selected. = Time-Operated Mode (default) The transceiver remains on a busy frequency (or Memory Channel) for approximately § seconds, then continues to scan even if the signal is still present. « Carrier-Operated Mode The transceiver remains on a busy frequency (or Memory Channel) until the signal drops out.
SELECTIVE CALL CSS AND DCS You may sometimes want to hear calls from only specific persons or groups. In this case, use Selective Call. This transceiver is equipped with CSS (Continuous Tone Coded Squelch System) and DCS (Digital Coded Squelch). These Selective Calls allow you te ignore (not hear) unwanted calls from other persons who are using the same frequency. The transceiver muteness only when i receives a signal having the same CSS tone or DCS code. 82502 Cross fed 825Hz Cross reg.
S Electing A CSS Frequency 1 Press [F], [MENU] and turn the Tuning control or press Mic [UPY[DWN] to select Menu No. 3 (CT). + The current CSS frequency appears. 2 Press [MENU] and turn the Tuning control to select your desired CSS frequency. + The delectable CSS frequencies are the same as those for the Tone frequency. Refer to the table below for the available CSS frequencies. 3 Press [MENU] to store the new setting or any other key to cancel. 4 Press any key other than [MENU] fo exit Menu Mode.
4 + While scanning, the decimal point of the CSS frequency blinks. + To reverse the scan direction, turn the Tuning control or press Mic [UPHOLD. » To quit the function, press any key. + When a CSS frequency is identified, the identified frequency appears and blinks. Press [MENU] to program the identified frequency in place of the current CSS frequency or press any other key to exit the CSS Frequency ID Scan.
+ The available DCS codes are shown in the following table.
Eel INI eV] (MDT) FUNCTIONS This transceiver provides you with 10 dedicated MDT Memory Channels. You can store a MDT number (16 digits max.) in each of these channels to recall later for speed dialing. Many repeaters in the U.S.A. and Canada offer a service called Auto patch. You can access the public telephone network via such a repeater by sending MDT tones. For {further information, consult your local repeater reference.
MDT TX Hoo This function causes the transceiver to remain in transmission mode for 2 seconds after you release each key. So, you can release Mic [PTT] while sending MDT tones. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 30 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.
6 Repeat steps 4 and 5 to enter up to 186 digits. 7 Press [MENU] fo complete the entry. Press any key other than [MR], [VFO [F], and [MENU] to cancel the entry. + To complete an entry of lass than 16 digits, press [MENU] two times. 8 Press any key other than [MENU] fo exit Menu Mode. Confirming Store MDT Numbers 1 Press [F]. [MENU] and turn the Tuning control to select Menu No. 28 (DTMF.MR).
Trusting THE Pause Duration You can change the pause duration {a space digit) stored in Memory Channels. The default setting is 500 milliseconds. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 31 (PA). Press [MENU] and tum the Tuning control to select 100, 250, 500 (default, 750, 1000, 1500, or 2000 ms. Press [MENU] fo store the setting or any other key to cancel. 4 Press any key other Thant [MENU] to exit Menu Mode.
RURAL (e] y APO (AUTO POWER OFF) BEAT SHIFT The transceiver switches OFF automatically if no keys or Since the transceiver uses a microprocessor to control controls are pressed or adjusted for the selected duration. various functions of the transceiver, the CPU clock One minute before the transceiver switches OFF, warning oscillators harmonics or image may appear on some beeps sound for a few seconds and “APO” blinks. You cart select the APC time from OFF (disable}, 30, 60, 90, 120, or 180 minutes.
1 Press [F], [MENU] and turn the Tuning control to select Menu No. 8 (8SQ). 2 Press [MENU] and turn the Tuning control to select “ON” or “OFF” (default). 3 Press [MENU] to sire the setting. + The S-meter setting segments appear. 4 Press any key other Thant [MENU] to exit Menu Mode. Press [F]. [REV] to enter S-Meter Level Select Mode. 8 Turn the Tuning control to select your desired level. Press any key other than [ 4] (Power) fo store the setting and exit S-Meter Level Select Mode.
3 Press [MENU] to store the setting or any other key to cancel. 4 Press any key other than [MENU] fo 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-put Timer warning beep {page 62} Note: The beep output level is linked 10 the VOL control position, BUSY CHANNEL LOCKOUT This function is used to prevent transmitting on a channel or frequency that somebody else is currently using.
The default step size for each model is as follows: 3 Press [MENU] to store the setting or any other key to Note: The market coda is printed on the bar code label of the carton box. DISPLAY BACK LIGHT You can manually change the display brightness to match the lighting conditions where you are operating the transceiver. This selling can be permanent or the display can light up only when keys are pressed.
LOCK FUNCTION The lock function disables most of the keys to prevent you from accidentally activating a function. Transceiver Lock is suitable for a typical mobile installation where you select most operations using the microphone. 1 Press [F] (is). “me” appears when this function MBS DD + The following keys cannot be locked: [4] (Power), [F] {1s), Volume control, [PT, and the Mic keypad. 2 Press [F] (1s) again to unlock the keys. Note: # The Tuning control is also locked.
MICROPHONE PF KEYS (Keypad Morse Only) You can access many transceiver settings without using transceiver keys or controls. Microphone keys PF/D, MR/C, VFO/B, and CALL/A are programmable with transceiver functions. The microphone key default assignments are as follows: Mic PF1 key [PF: 1 MHz step Mic PE2 key Memory Recall Mic PF3 key [VFO/BL: VFO Select Mic PF4 key [CALL/A]: Call Channel Select Note: «Tum the transceiver OFF before connecting the microphone. + Menu No.
NARROW BAND FM OPERATION By default, the transceiver operates in normal FM {£5 kHz) mode for both transmission and reception. POWER-ON MESSAGE You can change the Power-on message (a maximum of 6 characters) when the transceiver is trued ON. You can also operate the transceiver in narrow band FM 1 Press [F], [MENU] and turn the Tuning control to (2.5 kHz). select Mani No. 23 (PONGEE. To operate the transceiver in narrow band FM: 2 Press [MENU].
6 Press [MENU] to complete the setting and store the Power-on message. 7 Press any key other than [MENU] fo exit Menu Mode. Note: If & Power-on message is not set, the transceiver mods! name appears when the transceiver power is turned ON. PROGRAMMABLE VFO To limit the operating frequencies within a certain range, program the upper and lower frequency limits to the program VFO parameters.
TIME-OUT TIMER The Time-out Timer limits the time of each transmission to a maximum (default) minutes. Just before the transceiver stops the transmission, a warning beep sounds. This function is necessary to protect the transceiver from thermal damage and can therefore not be turned OFF. 1 Press [F], [MENU] and turn the Tuning control to select Menu No. 21 (TOT). 2 Press [MENU] and turn the Tuning control to select “3”, “5” or “10” (default) minutes.
MICROPHONE CONTROL y You can change numerous transceiver settings by operating the Mic MDT keys. The following table shows what function is switched ON and OFF or which setting is changed by pressing the MDT keys in the appropriate mode of operation.
' MDT tones are not transmitted in TX Mode if the MIC LOCK MDT Lock function The Mic Lock function disables the Mic PF keys to When transmitting a stored MDT number, press Mic prevent you from accidentally changing the transceiver release Mic then press a operation. Memory Channel number from transmit the ] “D” tone, press Mic [PF/D] again. 1 Press [F], [MENU] and turn the Tuning control select Menu No, 34 On the display, % is represented by “E”.
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, ails, and resistors n 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.
Note: The Memory Channels have no data stored. The ¢ Record the date of purchase, serial number and dealer from Weather Radio frequency (AL channel) is restored as whom this product was purchased, 162.550 MHz (K market models only). Refer to pages + For your own information, retain a written record of any 25 and 56 for the Call Channel and frequency step size maintenance performed on this product. * When claiming warranty service, please include a photocopy of default values the bill of sale.
Full Reset Method 2: 1 Press [F]. [MENU] and turn the Tuning control to select Menu No. 99 (RESET). 2 Press [MENU] and turn the Tuning control to select "FULL". 3 Press [MENU] + “SURE 7?" appears. Press any key other than [MENU] to canal 4 Press [MENU] to reset the transceiver. + “WAIT” appears momentarily. VFO Serer This resets the transceiver parameters excluding the MDT Memory, the Memory channel contents, and the Call channel contents. There are two methods available for resetting the transceiver.
TROUBLESHOOTING The problems described in the following tables are commonly encountered operational malfunctions. These types of difficulties are usually caused by improper hook-up, accidental incorrect control settings, or operator error due to incomplete programming. These problems are usually not caused by circuit failure. Please review these tables and the appropriate section(s) of this instruction manual before assuming your transceiver is defective.
Problem Problem Cause Corrective Action Page Ret. Memory Channels cannot | No data has been stored in any | Store data in some Memory Channels. 29 be selected by turning the | Memory Channels. Tuning control or by pressing Mic [UPY[DWN]. You cannot transmit even | 1 The microphone plug was not | 1 Switch OFF the power, then insert the 6 though you press Mic inserted completely into the microphone plug until the locking tab [PT. front panel connector. clicks in place.
i Rls ) Specifications are subject to change without notice due to advancements in technology. General TX frequency range K market models 144 ~ 148 MHz E market models 144 ~ 146 MHz M2 market models 136 ~ 174 MHz RX frequency range K market models 136 ~ 174 MHz E market models 136 ~ 174 MHz M2 market models 136 ~ 174 MHz. Mode F3E (FM) Antenna impedance 50Q Usable temperature range ~20°C +140 °F } Power supply 13.8 VY DC =15% (11.7 ~ 15.8 V) Grounding method Negative ground Current Transmit (max.
RLE Sg M4 market models: 25 W Power output High All other market models: 85 W Low Approx. 26 W Modulation Reactance Spurious emissions —60 dB or less Maximum frequency deviation Audio distortion (at 60% modulation} 3% or less Microphone impedance 600Q Circuitry Receiver Double conversion supersaturate Intermediate frequency (1st/ 2nd) 49.95 MHz/ 450 kHz Sensitivity (12 dB SIN AD) Wide: 0.18 uV or less Narrow: 0.
1750 Hz. Accessories Optional. Supplied. All-Channel Scan. Automatic Power Off. Automatic Repeater Offset Automatic Simplex Ch: Automatic Dial er Band Scan. Beat Shift Beep Function Busy Channel Lockout Call Channel Changing. Recalling Call Scan Channel Display Continuous Tone Coded Squelch System (CSS) Freq. ID Scan Selecting a Frequency .. Using... Digital Code Squelch (DCS) Code ID Scan... Selecting a Code. Using... . Display Back light 57. LCI Dual Tone Mu (MOTIF) Automatic Dial er.