Kenwood TH-K4AT - Manuals

vii S UPPLIED A CCESSORIES After carefully unpacking the transceiver, identify theitems listed in the table below. We recommend youkeep the box and packings for the shipping. y r o s s e c c A r e b m u N t r a P y t i t n a u Q T A 2 K - H T K 2 K M 2 M k o o h t l e B ) s w e r c s / w ( X X - 9 0...

viii y r o s s e c c A r e b m u N t r a P y t i t n a u Q E 2 K - H T T E 2 K - H T E 3 E k o o h t l e B ) s w e r c s / w ( X X - 9 0 7 0 - 9 2 J 1 1 a n n e t n A X X - 8 1 0 1 - 0 9 T 1 1 p a r t S X X - 2 4 3 0 - 9 6 J 1 1 e s a c y r e t t a B X X - 7 1 8 3 - 2 0 A – – y r e t t a b H M - i N...

ix y r o s s e c c A r e b m u N t r a P y t i t n a u Q T A 4 K - H T E 4 K - H T 2 M 3 E k o o h t l e B ) s w e r c s / w ( X X - 9 0 7 0 - 9 2 J 1 1 a n n e t n A X X - 9 1 0 1 - 0 9 T 1 1 p a r t S X X - 2 4 3 0 - 9 6 J 1 1 e s a c y r e t t a B X X - 7 1 8 3 - 2 0 A 1 – y r e t t a b H M - i N...

x W RITING C ONVENTIONS F OLLOWED The writing conventions described below havebeen followed to simplify instructions and avoidunnecessary repetition. n o i t c u r t s n I o D o t t a h W s s e r P ] Y E K [ . e s a e l e r d n a s s e r P Y E K . s s e r P ] 1 Y E K [ , ] 2 Y E K [ . s s e r P 1 Y ...

1 PREPARATION I NSTALLING THE PB-43N Ni-MH B ATTERY P ACK Note: Because the battery pack is provided uncharged, you mustcharge the battery pack before using it with the transceiver. Tocharge the battery pack, refer to “C HARGING THE PB-43N Ni-MH B ATTERY P ACK (Other than TH-K2AT K2/ M2, TH-K4AT M2)...

2 4 To remove the battery pack, lift the safety catch, then press the release latch to unlock the battery pack.Lift the battery pack away from the transceiver. I NSTALLING A LKALINE B ATTERIES 1 To open the BT-14 battery case lid, insert your thumb or finger into the hole on the top of the battery c...

3 2 Insert (or remove) six AA (LR6) Alkaline batteries. • Be sure to match the battery polarities with thosemarked in the bottom of the battery case. 3 Align the two tabs at the bottom of battery case, then close the cover until the locking tabs on top click. 4 To install the battery case onto (or r...

4 I NSTALLING THE A NTENNA Hold the supplied antenna by its base, then screw it intothe connector on the top panel of the transceiver untilsecure. A TTACHING THE H AND S TRAP ( OTHER THAN TH-K2AT K/ K2) If desired, you can attach the supplied hand strap to thetransceiver. Strap

5 I NSTALLING THE B ELT C LIP If desired, you can install the supplied belt clip to thetransceiver. 1 Loosely insert the two supplied screws into the holes on the back panel of the transceiver. 2 Slide the belt hook into position, under the screws.3 Tighten the screws until secure. Note: When the be...

6 C HARGING THE PB-43N Ni-MH B ATTERY P ACK ( OTHER THAN TH-K2AT K2/ M2, TH-K4AT M2) The Ni-MH battery pack can be charged after it hasbeen installed onto the transceiver. (The battery pack isprovided uncharged for safety purposes.) 1 Confirm that the transceiver power is OFF. • While charging the b...

8 C ONNECTING TO A C IGARETTE L IGHTER S OCKET To connect the transceiver to the cigarette lighter socketin your vehicle, use an optional PG-3J Cigarette Lightercable. When the PG-3J is connected to the cigarette lighterplug, the transceiver automatically starts charging thePB-43N Ni-MH battery pack...

9 C ONNECTING TO A R EGULATED P OWER S UPPLY To connect the transceiver to an appropriate regulatedDC power supply, use an optional PG-2W DC cable. 1 Confirm that the power of both the transceiver and the DC power supply is OFF. 2 Connect the optional PG-2W DC cable to the DC power supply; the red l...

YOUR FIRST QSO 10 F IRST QSO Are you ready to give your transceiver a quick try?Reading this chapter should get your voice on the airright away. The instructions below are intended only fora quick guide. If you encounter problems or there issomething you would like to know more, read thedetailed exp...

11 • A high pitched double beep sounds and a Power-ONmessage appears momentarily. The various indicatorsand the current operating frequency appear on the LCD. • The transceiver stores the current parameters when itis turned OFF and automatically recalls theseparameters the next time you turn the tra...

GETTING ACQUAINTED 12 K EYS AND C ONTROLS Tuning control TH-K2AT/ ET/ K4AT LED (TX:Red RX:Green) Display (LCD) SP/MIC jack DC IN jack MENU key MONI/SQL key LAMP key Power Switch PTT switch Antenna connector VOL control Keypad

14 o u y t r q w e !1 !2 !4 !3 i !0 !5 !6 !7 !8 q Appears when the CTCSS function is activated{page 69}. w Appears when the Tone function is activated{page 34}. e Appears when the DCS function is activated {page 73}. r Appears when the repeater shift function is activated{pages 31 ~ 34, 37}. t Appea...

16 !7 Appears when the function key is pressed. !8 appears when high power transmission is selected, appears when medium power is selected, and appears when low power is selected {page 95}.

17 B ASIC O PERATION Switching the Power ON/OFF 1 Press [ ] (POWER) briefly to switch the transceiver power ON. • A high pitched double beep sounds and a Power-ONmessage {page 92} appears briefly, followed by thefrequency and other indicators. 2 To switch the transceiver OFF, press [ ] (POWER) again...

18 Adjusting the Squelch The purpose of Squelch is to mute the speaker when nosignals 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 thesignals must be to receive. The appropriate squelch...

19 Transmitting 1 To transmit, hold the transceiver approximately 5 cm (2 inches) from your mouth, then press and hold[PTT] and speak into the microphone in your normaltone of voice. • The LED lights red and the bar-graph meter appears. • If you press [PTT] while you are outside of thetransmission c...

20 Selecting a Frequency ■ VFO Mode This is the basic mode for changing the operatingfrequency. Turn the Tuning control clockwise toincrease the frequency and counterclockwise todecrease the frequency. ■ MHz Mode If the desired operating frequency is far away fromthe current frequency, it is quicker...

21 ■ Direct Frequency Entry (TH-K2AT/ ET/ K4AT only) In addition to turning the Tuning control, there isanother way to select the frequency. When thedesired frequency is far away from the currentfrequency, you can directly enter a frequency usingthe numeric keypad.1 Press [VFO]. • You must be in the...

22 Example 2 To enter 145.000 MHz:Key in Display [#] – – – – – – [1], [4], [5] 1 4 5. – – – [#] 1 4 5. 0 0 0 Example 3 (Short cut) To enter 145.000 MHz:Key in Display 1 4 4. 6 2 5 [#] – – – – – – [5] 5 – –. – – – [ ] 1 4 5. – – – [#] 1 4 5. 0 0 0 Example 4 To change 144.650 MHz to 145.650 MHz:Key in...

23 Example 5 (Short cut) To change 144.650 MHz to 145.650 MHz:Key in Display 1 4 4. 6 5 0 [#] – – – – – – [5] 5 – – – – – [ ] 1 4 5. – – – [VFO] 1 4 5. 6 5 0 Example 6 To change 145.200 MHz to 145.750 MHz:Key in Display 1 4 5. 2 0 0 [#] – – – – – – [ ] 1 4 5. – – – [7], [5], [0] 1 4 5. 7 5 0 Note: ◆...

MENU SETUP 24 W HAT IS A M ENU ? Many functions on this transceiver are selected orconfigured via a software-controlled Menu rather thanthrough the physical controls of the transceiver. Onceyou become familiar with the Menu system, you willappreciate its versatility. You can customize the varioustim...

25 3 Press [MENU] to configure the parameter of the currently selected Menu No. 4 Turn the Tuning control to select your desired parameter. 5 Press [MENU] to store the new setting. Otherwise, press any key other than [LAMP], [MONI/SQL] or[ ] (POWER) to cancel. Note: ◆ The [LAMP] and [MONI/SQL] keys ...

31 OPERATING THROUGH REPEATERS Repeaters, which are often installed and maintained byradio clubs, are usually located on mountain tops orother elevated locations. They generally operate athigher ERP (Effective Radiated Power) than a typicalstation. This combination of elevation and high ERPallows co...

32 O FFSET P ROGRAMMING F LOW q w e r t Select a receive frequency. Select an offset direction. Select an offset frequency (only when programming odd-split repeater frequencies). Activate the Tone function(if necessary). Select a tone frequency (if necessary). If you store all the above data in a me...

33 1 Press [MENU].2 Turn the Tuning control to select Menu No. 6 (SFT). 3 Press [MENU].4 Turn the Tuning control to select “+” or “–”. • To program a –7.6 MHz offset (TH-K4E only),select “–7.6” instead. 5 Press [MENU] to store the setting or [PTT] to cancel. • “+” or “–” (or “ ”) appears above the f...

34 1 Press [MENU].2 Turn the Tuning control to select Menu No. 8 (OFFSET). 3 Press [MENU]. 4 Turn the Tuning control to select the appropriate offset frequency. • The selectable range is from 0.000 MHz to 69.950MHz in steps of 50 kHz. 5 Press [MENU] to store the setting or [PTT] to cancel. 6 Press a...

35 3 Press [MENU].4 Turn the Tuning control to select “TONE”.5 Press [MENU] to store the setting or [PTT] to cancel. 6 Press any key other than [LAMP], [MONI/SQL], and [MENU] to exit Menu Mode. • “T” appears when the Tone function is ON. Note: You cannot use the Tone and CTCSS/ DCS functions atthe s...

36 Available Tone Frequencies ) z H ( y c n e u q e r F e n o T 0 . 7 6 5 . 2 8 0 . 0 0 1 0 . 3 2 1 4 . 1 5 1 2 . 6 8 1 7 . 5 2 2 3 . 9 6 4 . 5 8 5 . 3 0 1 3 . 7 2 1 7 . 6 5 1 8 . 2 9 1 1 . 9 2 2 9 . 1 7 5 . 8 8 2 . 7 0 1 8 . 1 3 1 2 . 2 6 1 5 . 3 0 2 6 . 3 3 2 4 . 4 7 5 . 1 9 9 . 0 1 1 5 . 6 3 1 9 ...

38 R EVERSE F UNCTION The Reverse function exchanges a separate receptionand transmission frequency. So, while using a repeater,you can manually check the strength of a signal that youreceive directly from the other station. If the station’ssignal is strong, both stations should move to a simplexfre...

40 3 Press [MENU] (1 s). • When the transceiver receives a signal, scan starts.The decimal point blinks during scan. • While the transceiver is receiving a signal during ToneFreq. ID Scan, the signal is emitted from the speaker. • To reverse the scan direction, turn the Tuning control. • To quit the...

41 MEMORY CHANNELS In memory channels, you can store frequencies andrelated data that you frequently use so that you do notneed to reprogram that data every time. You can quicklyrecall a programmed channel through simple operation.A total of 100 memory channels (50 when using theMemory Name function...

44 Storing Simplex Frequencies or Standard Repeater Frequencies 1 Press [VFO].2 Turn the Tuning control to select your desired frequency. • You can also directly enter a desired frequency usingthe keypad (TH-K2AT/ ET/ K4AT only) {page 21}. 3 If storing a standard repeater frequency, select the follo...

45 Storing Odd-Split Repeater Frequencies Some repeaters use a pair of reception andtransmission frequencies with a non-standard offset.If you store two separate frequencies in a memorychannel, you can operate on those repeaters withoutprogramming the offset frequency and direction. 1 Store the desi...

46 Recalling a Memory Channel ■ Using the Tuning Control 1 Press [MR] to enter Memory Recall Mode. • The memory channel last used is recalled. 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 a N...

47 Note: ◆ You cannot recall an empty memory channel. An error beepsounds. ◆ You cannot recall the Program Scan memory channels(L0/U0 ~ L2/U2), Priority Channel (Pr) and Weather Alert(AL) (TH-K2AT K/ K2 only) using the numeric keypad. ◆ When you recall an odd-split memory channel, “+” and “–”appear ...

48 Note: ◆ Call Channel data cannot be cleared. ◆ You can also clear the Priority Channel, L0/U0 ~ L2/U2 andWeather Alert data. ◆ While the trasceiver is in Channel Display Mode or Lock functionis activated, you cannot clear the channel data. ◆ To clear all memory channels contents at once, perform ...

49 • You can enter the following alphanumeric characters:0 ~ 9, A ~ Z, – (hyphen), / (slash), and a space. • Press [MONI/SQL] to delete the character at thecurrent cursor position. 6 Press [MENU]. • The cursor moves to the next digit. 7 Repeat steps 5 and 6 to enter up to 6 digits. • To complete the...

50 M EMORY C HANNEL T RANSFER Memory \ VFO Transfer After retrieving frequencies and associated data fromMemory Recall Mode, you can copy the data to theVFO. This function is useful, for example, when thefrequency you want to monitor is near the frequencystored in a memory channel. 1 Press [MR], the...

51 3 Select the memory channel where you would like the data copied, using the Tuning control. 4 Press [MR]. The tables below illustrate how data is transferredbetween memory channels. 9 9 ~ 0 l e n n a h C a 9 9 ~ 0 l e n n a h C y c n e u q e r f n o i t p e c e R a y c n e u q e r f n o i t p e c...

53 C ALL C HANNEL The Call Channel can be recalled instantly no matterwhat frequency the transceiver is operating on. Forinstance, you may use the Call Channel as anemergency channel within your group. In this case, CallScan {page 64} will be useful.The default Call Channel frequencies are 144.000 M...

54 Reprogramming the Call Channel 1 Select your desired frequency and related data (Tone, CTCSS, DCS, or offset direction, etc.). • When you program the Call Channel as an odd-splitchannel, select a reception frequency first. 2 Press [F], [CALL]. • The selected frequency and related data are stored ...

55 W EATHER A LERT (TH-K2AT K/ K2 ONLY ) One of the NOAA Weather Radio channels can beprogrammed to the AL memory channel of the TH-K2AT.The transceiver can be configured to check the NOAAWeather Alert tone (1050 Hz) and will automatically alertyou by recalling and monitoring the Weather Radiofreque...

56 Note: ◆ When you perform Full Reset {page 111}, the Weather Radiofrequency recovers the factory default frequency (162.550 MHz). ◆ When you clear the Weather Radio channel {page 47}, thefactory default frequency (162.550 MHz) will not be recovered. ◆ You can also transfer the AL memory channel da...

57 If you want to monitor another frequency whilemonitoring the Weather Radio in the background: 1 Perform step 1 ~ 4 above.2 Press [VFO] or [MR] and turn the Tuning control to select another frequency or memory channel. • “WX” remains on the LCD. 3 When the Weather Alert tone is broadcasted, the tr...

59 SCAN Scan is a useful function for hands-off monitoring ofyour favorite frequencies. By becoming comfortablewith all types of scan, you will increase your operatingefficiency.This transceiver provides the following types of scans. e p y T n a c S e s o p r u P l a m r o N n a c S n a c S d n a B ...

60 Note: ◆ When the CTCSS or DCS function is activated, the transceiverstops at a busy frequency and decodes the CTCSS tone or DCScode. If the tone or code matches, the transceiver unmutes.Otherwise, it resumes scanning. ◆ Press and hold [MONI/SQL] to pause scan in order to monitorthe scanning frequ...

62 4 Press [MR] to store the start frequency in the memory channel. 5 Turn the Tuning control to select your desired end frequency. 6 Press [F], [MR] then turn the Tuning control to select a channel from U0 ~ U2, corresponding tothe channel selected in step 4. • For example, if you selected L0 in st...

64 C ALL S CAN You can alternate between monitoring the Call Channeland 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 to select thedesired frequency. • In Memory Recall Mode, turn the Tuning control ...

65 P RIORITY S CAN You may sometimes want to check your favoritefrequency activities while monitoring other frequencies.In this case, use the Priority Scan function. PriorityScan checks the activities of the Priority Channel every3 seconds. If the transceiver detects a signal on thePriority Channel,...

66 Using Priority Scan 1 Press [MENU] and turn the Tuning control to select Menu No. 10 (PRI). 2 Press [MENU] and turn the Tuning control to select “ON”. 3 Press [MENU] to store the setting. • “PRI” appears. 4 Press any key other than [PTT], [LAMP], and [MONI/SQL] to exit Menu Mode. • The transceive...

67 M EMORY C HANNEL L OCKOUT You can lock out memory channels that you prefer notto monitor during All-Channel Memory Scan {page 63}. 1 Press [MR] to enter Memory Recall Mode. 2 Turn the Tuning control to select the memory channel to be locked out. 3 Press [MENU].4 Turn the Tuning control and select...

68 S CAN R ESUME M ETHOD The transceiver stops scanning at the frequency (ormemory channel) where a signal is detected. It thencontinues or stops scanning according to which ResumeMode you have selected. • Time-Operated Mode (default)The transceiver remains on a busy frequency (ormemory channel) for...

69 SELECTIVE CALL CTCSS AND DCS You may sometimes want to hear calls from onlyspecific persons or groups. In this case, use theSelective Call. This transceiver is equipped withCTCSS (Continuous Tone Coded Squelch System) andDCS (Digital Coded Squelch). These Selective Callsallow you to ignore (not h...

70 • As you turn the Tuning control, the selection cycles asfollows: “OFF” ➞ “TONE” ➞ “CTCSS” ➞ “DCS” ➞ “OFF”. 3 Press [MENU]. • “CT” appears on the upper part of display, indicatingthat the CTCSS function is activated. 4 Press any key other than [MENU], [MONI/SQL], and [LAMP] to exit Menu Mode. Whe...

71 3 Press [MENU] to store the new setting or [PTT] to cancel. Note: To use the selected CTCSS tone, you must turn the CTCSSfunction ON {page 69}. Available CTCSS Tone Frequencies ) z H ( y c n e u q e r F e n o T 0 . 7 6 5 . 2 8 0 . 0 0 1 0 . 3 2 1 4 . 1 5 1 2 . 6 8 1 7 . 5 2 2 3 . 9 6 4 . 5 8 5 . ...

72 CTCSS Freq. ID Scan This function scans through all CTCSS frequencies toidentify the incoming CTCSS frequency on the receivedsignal. You may find this useful when you cannot recallthe CTCSS frequency that the other persons in yourgroup are using. 1 Press [MENU] and turn the Tuning control to sele...

73 DCS DCS is similar to CTCSS. However, instead of using ananalog audio tone, it uses a continuous sub-audibledigital waveform that represents a 3-digit octal number.You can select a DCS code from among the 104 DCScodes listed in the table on the next page. Using DCS 1 Press [MENU] and turn the Tun...

74 Selecting a DCS Code 1 While in DCS Mode, press [MENU] and turn the Tuning control to select Menu No. 5 (DCS). • The current DCS code appears. 2 Press [MENU] and turn the Tuning control to select your desired DCS code. • The available DCS codes are shown in the followingtable. 3 2 0 5 6 0 2 3 1 5...

75 DCS Code ID Scan This function scans through all DCS codes to identifythe incoming DCS code on the received signal. Youmay find this useful when you cannot recall the DCScode that the other persons in your group are using. 1 Press [MENU] and turn the Tuning control to select Menu No. 5 (DCS). 2 P...

76 DTMF FUNCTIONS This transceiver provides you with 10 dedicated DTMFmemory channels. You can store a DTMF number (16digits max.) in each of these channel to recall later forspeed dialing.Many repeaters in the U.S.A. and Canada offer aservice called Autopatch. You can access the publictelephone net...

77 • When DTMF TX Hold is activated {page 77}, you donot need to continuously press [PTT] to remain inTransmission Mode. However, Transmission Mode isretained for only 2 seconds after pressing a key, so ifthe next key is not pressed within this time limit, thetransceiver stops transmitting. DTMF TX ...

78 5 Press [MENU]. • The DTMF code entry display appears and the lastdigit blinks. 6 Turn the Tuning control to select a DTMF code. • Press [MONI/SQL] to delete the character at thecurrent cursor position. • On the transceiver display, DTMF code “ ” isrepresented by “E” and “#” is represented by “F”...

79 Transmitting a Stored DTMF Number 1 While pressing and holding [PTT], press [MENU].2 Release [MENU] (continue pressing [PTT]), then turn the Tuning control to select the desired DTMFmemory channel number. 3 While still holding [PTT], press [MENU] again to transmit the selected DTMF tones. • The n...

80 Adjusting the DTMF Tone Transmission Speed This transceiver allows you to configure the DTMFnumber transmission speed between Fast (default) andSlow. If a repeater cannot respond to the fast speed,adjust this parameter. 1 Press [MENU] to enter Menu Mode. 2 Turn the Tuning control to select Menu N...

81 DTMF K EY L OCK Assuming you have a transceiver with the optionalspeaker microphone installed and you are carrying it inthe holder or bag, you sometimes may want to disablethe keypad to avoid accidental DTMF transmission. Inthis case, turn the DTMF Key Lock function ON. 1 Press [MENU] to enter Me...

82 OPERATOR CONVENIENCES APO (A UTO P OWER OFF) The transceiver switches OFF automatically if no keysor controls are pressed or adjusted for 30 minutes(default). One minute before the transceiver switchesOFF, warning beeps sound for a few seconds and“APO” blinks.You can select the APO time from OFF ...

83 B ATTERY L IFE Before you operate the transceiver outside using abattery pack, it is important to know how long thebattery pack will last. The operating times listed in thetable below are measured under the following cyclicconditions:TX: 6 seconds, RX: 6 seconds, Stand-by: 48 secondsWe recommend ...

84 : High battery power : Medium battery power : Low battery power No display : Recharge or replace the batteries. 3 Release [PTT] to exit. Note: You may not be able to transmit at high power (“ ” position) ifthe battery remaining indicator shows low battery power. B ATTERY S AVER The Battery Saver ...

87 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 Press [MENU] and turn the Tuning control to select Menu No. 1 (STP). • The current frequency step size appears. 2 Press [MENU] and turn the Tuning control to select your desired ...

88 L AMP To illuminate the display and keys:Press [LAMP]. • If no other key is pressed, the light turns OFFapproximately 5 seconds after releasing [LAMP]. • Press any key (including [PTT]) other than [LAMP] whilethe display and keys are lit to restart the 5-second timer. • Press [LAMP] while the dis...

89 Note: ◆ The Tuning control is also locked. To unlock the Tuning controlwhile the Lock function is ON, access Menu No. 30 (ENC){below} and select “ON”. ◆ You cannot perform the Microprocessor Reset {page 111} whilethe Lock function is ON. ◆ Microphone PF keys {below} operate normally even if the L...

90 Note: ◆ Turn the transceiver OFF before connecting the optional speakermicrophone. ◆ While Menu No. 31 (PC) is ”ON“ {page 107} or the Lock functionis ON {page 88}, you cannot program PF keys. ◆ If the LOCK switch on the rear of the microphone is ON, youmust move the switch to the OFF position to ...

91 M ONITOR When you are receiving while the squelch function isON, weak signals may become intermittent.If the CTCSS or DCS function is ON, you may want todisable the squelch function temporarily to monitor thecurrent channel activities. In both of these cases, use the Monitor function totemporaril...

92 When narrow band FM operation is ON, “N” appears inthe top right of the LCD. Note: You can store the narrow band FM operation status to thememory channels {page 41}. P OWER -ON M ESSAGE You can change the Power-ON Message (a maximumof 6 characters) when the transceiver is turned ON. 1 Press [MENU...

93 • Press [MONI/SQL] to delete the character at thecurrent cursor position. • If no Power-ON Message is programmed, “TH-K2” or“TH-K4” appears as the Power-ON Message. 7 To complete the entry, press [MENU] without selecting a character. Otherwise press [PTT] tocancel the entry. P ROGRAMMABLE VFO If ...

94 • The upper limit frequency blinks. 7 Turn the Tuning control to select the upper limit frequency in MHz. 8 Press [MENU] to store the upper limit frequency or [PTT] to cancel. Note: ◆ You cannot program the 100 kHz or lower digits. ◆ The upper limit frequency cannot be set lower than the selected...

95 Note: A warning beep sounds even if you select Menu No. 27 (BP) OFF {page 85}. TX I NHIBIT You can inhibit the transmission to prevent unauthorizedindividuals from transmitting, or to eliminate accidentaltransmissions while carrying the transceiver. 1 Press [MENU].2 Turn the Tuning control to sel...

96 y r e t t a B e p y T t u p t u O r e w o P n o i t c e l e S ) . x o r p p A ( r e w o P t u p t u O 4 1 - T B ) V 0 . 9 ( H W 5 . 3 M W 2 . 1 L W 3 . 0 N 3 4 - B P ) V 2 . 7 ( H W 0 . 5 M W 5 . 1 L W 5 . 0 N I C D ) V 8 . 3 1 ( H W 0 . 5 M W 5 . 1 L W 5 . 0 Note: If the DC IN voltage exceeds 14...

97 1 Press [MENU] then turn the Tuning control to select Menu No. 20 (VOX). 2 Press [MENU] and turn the Tuning control to select the desired VOX gain level from 1 (least sensitive) to9 (most sensitive). • To turn OFF the VOX function, select “OFF” in step 2. Note: ◆ While in Menu Mode {page 24}, the...

98 • If the transmission does not begin, you must readjust the VOX Gain so that transeivertransmits while you are speaking. To readjust thegain, press and hold [PTT] then turn the Tuningcontrol to select a more sensitive gain level. • While readjusting the gain, you can release [PTT]. The transceive...

99 VOX Delay Time If the transceiver returns to Reception Mode too quicklyafter you stop speaking, the end of your transmissionmay not be sent. To avoid this, select an appropriatedelay time that allows your entire transmission to besent, before Transmission Mode ends. However, do notmake the delay ...

100 VOX on Busy You can configure the transceiver to force VOXtransmission even if the transceiver is receiving asignal. 1 Press [MENU].2 Turn the Tuning control to select Menu No. 21 (VXB). 3 Press [MENU]. 4 Turn the Tuning control to select “ON”. • To suppress the VOX transmission when thetranscei...

101 OPTIONAL ACCESSORIES KHS-21Headset HMC-3Headset (with VOX/ PTT) EMC-3Clip Microphone withEarphone BT-14 Battery Case (6 AA/ LR6) KSC-24Rapid Charger BC-21 Battery Charger

104 INTERFACING TO PERIPHERALS SP/MIC J ACK The SP/MIC jack on the transceiver can be configuredto interface to various kind of peripherals available forthe transceiver, such as a speaker microphone(SMC-32/ 33/ 34) and PC interface cable (PG-4Y).Access Menu No. 31 (PC) and select “ON” or “OFF”. SP/M...

105 Note 1: Voltage is developed across a 100 Ω resistor on the 5 V line in the transceiver. When 2 mA flows, approximately 4.8 V is developed. Note 2: A 10 µ F capacitor is not required in the following cases: • When other equipment has DC blocking capacitors. • When a 2-terminal electret condenser...

106 ■ Using the PG-4Y PC Interface Cable Use the PG-4Y PC interface cable to connectbetween the transceiver and PC. Plug the Speaker/Microphone connector to the SP/MIC jack and DB-9connector to one of the COM (serial) ports on yourPC. PC

107 ■ Using the MCP-1A Software When the transceiver is connected to a PC in orderto use the MCP-1A (Memory Channel ControlProgram) software, you must configure the SP/MICjack function prior to using the software.1 Press [MENU]. 2 Turn the Tuning control to select Menu No. 31 (PC). 3 Press [MENU].4 ...

108 TROUBLESHOOTING G ENERAL I NFORMATION Your transceiver has been factory aligned and tested tospecification before shipment. Under normalcircumstances, the transceiver will operate inaccordance with these operating instructions. Alladjustable trimmers, coils and resistors in thetransceiver were p...

109 center. A copy of the service report will be returned withthe transceiver. Please do not send subassemblies orprinted circuit boards; send the complete transceiver. Tag all returned items with your name and call sign foridentification. Please mention the model and serialnumber of the transceiver...

110 Cleaning The keys, controls, and case of the transceiver are likelyto become soiled after extended use. Remove thecontrols from the transceiver and clean them with aneutral detergent and warm water. Use a neutraldetergent (no strong chemicals) and a damp cloth toclean the case. B ACKUP B ATTERY ...

111 M ICROPROCESSOR R ESET If your transceiver seems to be malfunctioning, resettingthe microprocessor may solve the problem. Thefollowing 2 reset Modes are available. When performingthe reset, you may lose memory data and storedinformation. Back up or write down important databefore performing the ...

112 Performing Reset There are 2 ways to enter the Reset Mode selection.However, the transceiver’s Lock function must be turnedOFF {page 88}. When the transceiver is turned OFF: ■ Full reset 1 Press [F]+[ ] (POWER). • All indicators are lit. 2 Release [F]. • The full reset confirmation message, “FL....

113 ■ VFO reset 1 Press [VFO]+[ ] (POWER).2 Release [VFO]. • The VFO reset confirmation message, “VF.RST?”,appears. 3 Press [VFO] to proceed. • “SURE ?” appears. • Press any key other than [VFO], [LAMP] and[MONI/SQL] to exit the Reset Mode. 4 Press [VFO] to reset the transceiver.

114 Reset using the Menu 1 Press [MENU].2 Turn the Tuning control to select Menu No. 99 (RESET). 3 Press [MENU]. 4 Turn the Tuning control to select the Reset Mode, “FULL” or “VFO”. 5 Press [MENU] to select the Reset Mode. • “SURE ?” appears. • Press any key other than [MENU], [LAMP] and[MONI/SQL] t...

115 O PERATION N OTICES The transceiver has been designed and engineered toavoid possible hardware glitches. However, you maynotice the following symptoms when you operate thetransceiver. These symptoms are not malfunctions. Operating Voltage As stated in “SPECIFICATIONS” {page 122}, thistransceiver...

116 Transmission If you continuously transmit for more than 8 minutesat high power (5 W), the transceiver becomes warm.If you continue or repeat the transmission before thetransceiver cools down, the thermal protector graduallydecreases the output power down to 1.5 W.“ ” also blinks at the same time...

122 SPECIFICATIONS l a r e n e G T A 2 K - H T e d o c t e k r a M 2 K , K 2 M , M y r o m e m f o r e b m u N s l e n n a h c + ) 0 5 ( 0 0 1 l a i c e p s 9 n o i t c n u f s e i r o m e m + ) 0 5 ( 0 0 1 l a i c e p s 8 n o i t c n u f s e i r o m e m e c n a d e p m i a n n e t n A ) e p y t r o...

134 INDEX AAll-Channel Scan ......................................................... 63Alkaline Batteries, Installing ............................................ 2APO (Menu No. 17) ..................................................... 82ARO (Menu No. 9) ...............................................

135 Clearing Memory Channel .................................................... 47 COM Port ................................................................... 106CT (Menu No. 4) .......................................................... 70CTCSS Freq. ID Scan ..........................................

136 Frequency Step Size .................................................... 86Full Reset ................................................................... 111HHLD (Menu No. 19) ...................................................... 36IInstalling the Alkaline Batteries ...............................

138 Regulated Power Supply ................................................ 9Repeater Offset, Automatic .......................................... 37Repeater Operation ..................................................... 31Reprogramming the Call Channel ................................................

139 Time-Operated Mode ................................................... 68Time-out Timer ............................................................. 94Tone Activating, Function ................................................. 34Freq. ID Scan .......................................................