144 MHz FM Transceiver M TH-22A/22AT /22E TH-42A/ 42AT

CONVENTIONS FOLLOWED IN THISMANUALINSTRUCTIONMEANINGWHAT TO DOThe writing conventions described below have beenfollowed to simplify key stroke instructions and avoidunnecessary repetition. This format is less confusing forthe reader. Reviewing the following information now willreduce your learning period. That means less time willbe spent reading this manual; more time will be availablefor operating.Press[KEY1] [KEY2].Press the keyssimultaneously.Press and holdKEY1 down, thenpress KEY2.Press[KEY1], [KEY2].Press the keysin sequence.Press KEV1momentarily,release KEY1,then press KEY2.Note:With thePress the key[KEY] POWER ON. while powering transceiver powerthe transceiver. OFF, press andhold KEY, thenturn ON thetransceiver power.Press Basic procedures are numbered sequentially to guide youstep-by-step. Additional information pertaining to a step,but not essential to complete the procedure, is provided inbulleted form following many steps for further guidance. Most procedures require that you enter a final key strokethat acts as a terminator for the procedure. You can. if youprefer, simply wait for approximately 10 seconds ratherthan enter this final key entry.Press[F] (1 s).Press theFunction key torlonger than 1second.Press and holdthe Function keyuntil the "F"indicator on thedisplay beginsflashing.Press[KEY] (1 s).Press the keyfor longer than1 second.Press and holdKEY until thefunction begins.2From The N3UJJ.COM Document Library

BATTERY INFORMATIONNiCd BATIERY PACK (PB-32/PB-34)You must charge the battery pack before you can use it.The pack is delivered uncharged to provide you with thegreatest number of charge/discharge cycles. It takesseveral charge/discharge cycles before achieving the fullbattery pack capacity. After storing the pack for morethan 2 months, recharge it before use. RechargingInsert the plug from the BC-17 charger into the DC INjack on the right side of the transceiver. Then plugthe charger AC plug into an AC wall outlet. Do notcharge the battery for more than 15 hours. Exceedingthe recommended charge period shortens the usefullife of the pack and adversely affects batteryperformance. DC IN jackNote: Recharging should be done within an ambienttemperature between soc to 40 C (41 F to 104 F).Recharging outside this range may not fully charge thebattery. If the entire display is blinking, or if turning PWR/VOLclockwise does not power the transceiver, recharge thebattery pack. The BC-17 charger is designed to recharge only PB-32,PB-34, PB-30 (option), or PB-33 (option). Never usethe BC-17 to recharge other types of batteries. Installing/Removing the Battery PackInsert the battery pack into the bottom of thetransceiver, and push in until the tab on the packlocks in place.To remove the battery pack, simultaneously press thetab on the back of the pack while pulling out the packfrom the transceiver.' 3From The N3UJJ.COM Document Library

INSTALLING/REMOVING MANGANESE ORALKALINE BATTERIES(Some General Market Versions)A fully-charged NiCd battery pack allows optimumperformance of your transceiver especially for longtransmissions or extended operation. However, when aNiCd battery pack is not available, use high qualityalkaline batteries. If manganese batteries are used, it isrecommended that transmissions be made only with the"L" or "EL" transmitter output power.1 To remove the battery case, simultaneously press thetab on the back of the case while pulling out the casefrom the transceiver.3 Insert 4 M manganese or alkaline batteries in thecase half with metal contacts making sure the and - end of each battery is as shown. o If replacing batteries, remove the old batteries firstby lifting up on each battery end. Never discard oldbatteries in fire as extremely high temperatures cancause batteries to explode.4 Insert the two small alignment tabs on he other half ofthe case into their matching holes in the case halfcontaining the batteries. Press the case halvestogether until the tab on the case bottom locks inplace .2 Open the battery cas·e by simultaneously pressing onthe locking tab on the bottom of the case while pullingthe two case halves apart.Note: Install only alkaline or manganese battenes in rhe battery case.Installing NiCd batteries in the battery case will cause anelecrrical short that generates heat and damages either thebattery case or transceiver. Remove the batteries from the battery case if your transceiverwill not be used for a long time.4Locking tabFrom The N3UJJ.COM Document Library

5 Insert the battery case into the bottom of thetransceiver, and push in until the tab on the caselocks in place.New Bat1eryNiCd Battery(PB-30)NiCd Battery(PB-32/ 33)NiCd Battery(PB-34)Alkaline BatteryDischarged Battery ········ BATIERY OPERATING TIME (HOURS)---ModelsCAUTION: Do not install the battery pack or batteries in ahazardous environment where sparks could cause anexplosion.TH·22ATH-22ATTH·22EBATIERY VOLTAGE LEVELThe horizontal bars on the Display show the relativebattery voltage while transmitting using "EL" outputpower. Recharge or replace the batteries as necessaryusing the accompanying diagrams as reference.APOu3 '; rl1 .3.!. , AlkalinePB-30PB-32PB-33PB-34AlkalineTransmitter Output PowerHigh LowEconomic 4012122412408816824 6 seconds Transmit, 6 seconds Receive,48 seconds Standby (AF output 0.2 W i 8 ohms) Battery Saver ON s5From The N3UJJ.COM Document Library

YOUR FIRST QSOIf you tend to discard instruction manuals along with thepackaging material. . please don't. The 4 steps belowwill get you on the air in your first QSO within minutes toallow you to experience the exhilaration that comes withopening a brand new transceiver.After spreading the word to your best buddies that youare now "handy-active", settle back in your mostcomfortable operating chair with this manual and yourfavorite drink for an hour or two. The time spent will beworthwhile.1 Install a riew set of batteries or a charged battery pack"{page 3}. Holding the provided antenna at its base,twist the antenna onto the BNC connector until youfeel the antenna click in place.2 Turn the PWRNOL control clockwise to the 11o'clock position.3 Turn the ENC/SQL control to select a frequency. If accessing a repeater, press [F], [REV] to selecta standard positive transmit offset Repeat toselect a negative offset. If a subaudible tone is required to access therepeater, see page 30.4 When the frequency is clear, press [PTTl and begincommunicating. Release [PTT] to receive.CAUTION: Transmitting with the supplied antenna near otherelectronic equipment can interfere with that equipment. Also,transmitting near a regulated power supply not specified maycause the power supply to output an extremely high voltagethat could damage both your transceiver and any otherequipment connected to the supply.6From The N3UJJ.COM Document Library

GETTING ACQUAINTEDORIENTATION@) lspeaker jack3 ON AIRindicatorLED- 1--tttt--switch LAMPswitch@MONIswitch440MHz FM TRANSCEIVER TH-42ATKENWOOD,,.' 0 ' 0 ' 0 O DTWF.U 0 0 0 0 0 0 0 Oo O OoO OoKeypadTH-42ATThe keypad is an option forGeneral market versions.KENWOODDTH-42A/42E (Keypad optional)7From The N3UJJ.COM Document Library

The purpose of the following sections is to describebasic functions. Please refer to later sections for greaterdetail.KEYS, CONTROLS, SWITCHES,INDICATORSCDPWRNOL (PowerNolume) controlTurn the control clockwise until it clicks to switch ON thetransceiver. To switch OFF the transceiver, turncounterclockwise to OFF.Turning the control clockwise after switching ON thetransceiver increases the volume. ENC/SQL (Encoder/Squelch) controlSelect operating frequencies, frequency steps, memorychannels, transmit offsets, Tone frequencies, menuitems, and use to reverse scan direction. Also, use tomanually set the receiver squelch threshold level. ON AIRindicator LEDLights when [PTT] is pressed while a frequency withinthe transmit band is selected.@ PTT (Push-To-Talk)Hold down to transmit. Release to receive.@LAMPPress to illuminate the display. The display remains litwhile [LAMP] is held down. Approximately 5 secondsafter releasing [LAMP], the light goes OFF if no otherkey is pressed. Pressing any key except [LAMP] whilethe display is lit restarts the 5 second timer. Otherwise,pressing [LAMP] turns OFF the light immediately. Tolatch the light ON, press [F], [LAMP]. The displayremains lit until [LAMP] is pressed again.@ MONI (Monitor)Hold down to monitor the operating frequency even whennoise squelch, CTCSS, DTSS, Page, or Tone Alert isON. "BUSY" appears on the display while MONI is helddown. Also, use in combination with the ENC/SQLcontrol to manually set the receiver squelch thresholdlevel.([) F (Function)Use in combination with dual function keys to select thealternate key function. Also, use to select MemoryStorage and 1 MHz Step. VFOPress to select the VFO. MR (Memory Recall)Press to select Memory RecalL8From The N3UJJ.COM Document Library

JACKS AND CONNECTORS@CALLPress to recall the Call channel. T/CT (Tone/CTCSS)Press to switch between Tone and CTCSS functions.@ REV (Reverse)Press to reverse the transmit and receive frequencies.This is particularly useful when monitoring a repeater tocheck the signal strength of a station on its transmitfrequency. BNC connectorAttach the supplied antenna. External microphone/speaker jacksConnect an external microphone. speaker or speakermicrophone if desired. When using the transceiver withany of these accessories, take care not to let water enterthe speaker jack or microphone jack. KeypadUse to input numeric data such as frequencies, memorychannel numbers, etc. Also, use to input numbers whensending DTMF digits and to control DTSS, Page, andDTMF memory functions.External DC IN jackConnect the BC-17 wall charger in order to charge thetransceiver's rechargeable battery pack.Connect the optional PG-2W DC power cable if anexternal power supply is used. The supply voltage mustbe in the range from 5 V to 16 V.Connect the optional PG-3J cigarette lighter cable whenusing a cigarette lighter socket as a power source duringmobile operation.9From The N3UJJ.COM Document Library

DISPLAYCD.OAppears when Key Lock is ON. Most keys and theENC/SQL control are disabled if this function isactivated. The ENC/SQL control lock can be bypassed. PAGAppears when Page is ON. Allows you to Page otherstations that have the Page function on theirtransceivers.' TX.SAppears when Transmit Inhibit is ON. No transmissionscan be made.@ DTAppears when the Dual Tone Squelch System is ON.You can use your transceiver for sending and receivingdigitally-addressed transmissions.@RAppears when the Reverse function is ON. Transmit andreceive frequencies are reversed. Tor CTAppears when the subaudible tone encoder ("T") is ON,or when the Continuous Tone Coded Squelch System("CT") is ON.10From The N3UJJ.COM Document Library

-EJIJ) Displays the transmit offset direction in relation to thereceive frequency.Whilereceiving, ··· · · ·displays· · -the relative signal strength ofreceived signals. While transmitting, displays the relativebattery level.r------------,QD L------------ Displays the operating frequency, frequency step, Tonefrequency, and current menu settings. Blinks to indicate the 1 MHz step function is ON. miD ;---,· Disp.lays the current memory channel selected whenusing Memory Recall.@ Appears when Tone Alert is ON. Flashes when a signalis received. sAppears when Battery Saver is ON.Appears when the squelch is open due to a receivedsignal (or noise) that is greater in strength than thesquelch threshold level.[31]Appears when the transmit output power is set to Low("L") or Economic Low ("EL"). Neither indicator appearswhen High power is selected.@ APO@.a.Appears when Automatic Power Off is ON.Appears when the seleeted memory channel containsdata while using Memory Store. 0@*Appears when [F] is pressed. Indicates that thealternate function of dual function keys can be used now.Appears when the selected channel or Page code islocked-out. While memory scanning, the transceiverdoes not stop on locked-out channels. During Pageoperation, the squelch does not open for locked-outcodes.11From The N3UJJ.COM Document Library

MENU SET-UPMany of the features on the transceiver are selected bymeans of a configurable menu system. This systemreduces the number of keys and controls withouteliminating important features. To change theconfiguration of a Menu item, use the followingprocedure:1 Press [CALL] POWER ON to enter Menu Set-up.Menu No.Description01Battery Saver02Automatic Power Off (APO)Scan Resume:03Time-operated (TO), Carrier-operated (CO)04Keypad BeepTransmit Inhibit05Tuning Encoder Lock0607Automatic Transmit OffsetDTSS/Page Transmit delay08DTMF Transmit Hold (2 s)0910Open Page11Auto Page CancelChannel Display1213Time-out Timer (TOn14Busy Frequency Lock-out2 Turn the ENC/SQL control to select the menu item tobe changed. The current selection appears.3 Each time [CALL] is pressed, the different selectionsavailable appear on the display.4 Press any key other than [CALL], [LAMP), or [MONI]to exit Menu Set-up and save the selection viewed laston the display.The table below lists the configurable menu items:SelectionsON/OFFON/OFFDefault Reference PageON39ON39TO/COTO36ON/OFFON/OFFON/OFFON/OFF350 ms I 550 msON/OFFON/OFFON/OFFON/OFFONOFFOFFON1350 msOFFOFFOFFOFF1820182830/ 60/ 901 180/ 900 s900 sON/OFFOFF42 and 46344747251920TH-22AT (U.S.A. and Canada), TH-22E onlyNote: While accessing Menu Set-up, waiting for longer than 10 seconds without entering any data ends the set-up operationautomatically and returns you to the previous display.112From The N3UJJ.COM Document Library

RECEIVINGSWITCHING POWER ON/OFFSQUELCH THRESHOLD LEVELTo switch ON your transceiver, turn the PWRNOLcontrol clockwise and set it at the 11 o'clock position.Various indicators, including a receive frequency, appearon the display. Due to the automatic squelch feature, nosound will be heard from the speaker until you receive acall.The receiver squelch is automatically controlled by thetransceiver's microcomputer based on the measurednoise level. However, you can override themicrocomputer setting, if you wish.Use the same control to adjust the volume moreprecisely while receiving your first call, or press [MONI]and adjust the PWRNOL control to set the backgroundnoise to a comfortable level. Pressing [MONI] alwaysallows you to listen to activity on the selected frequencyas long as this key is held down.To switch OFF the transceiver, turn the PWRNOLcontrol counterclockwise until it clicks at the OFFposition.1 Turn the ENC/SQL control to select a frequency thatis not busy.2 Press [F], [MONI]. The current squelch threshold level appears. The default is "5".cAPO3 Turn the ENC/SQL control to select the desired level(0 to 9). 0: Selects lowest threshold level (squelch open). 9: Selects highest threshold level.4 Press any key other than [LAMP] or [MONI].13From The N3UJJ.COM Document Library

SELECTING FREQUENCY STEP SIZEChoosing the correct step size when operating isessential in order to select your exact operatingfrequency with the ENC/SQL control. The best step sizeis the largest step that will still allow you to use theENC/SQL control to select all frequencies on which youplan to operate. Using the best step size reduces thetime required to select new frequencies with theENC/SQL control; operating becomes easier.Default (kHz)VersionITH-22TH-42 -A 3 Turn the ENC/SQL control to switch betweenavailable frequency steps. As you turn the ENC/SQL control clockwise orcounterclockwise, the following selections appear:5kHzAustraliaEurope .General52512.525""llt25 kHzCanadaU.S.A.e ! i ·------ ' "'10kHz12.5 kHz,.""15 kHzt)o20 kHz4 Press any key other than {LAMP] or {MONI]. The new step size is stored, and the previousdisplay is restored.Note: The step size can be set separately for the VFO, Callchannel, and memory channels.1 Press [VFO] to select the VFO.2 Press [F], [T/CT]. The current frequency step appears.14From The N3UJJ.COM Document Library

Changes in Displayed FrequenciesChanging between step sizes may result in a changeof the displayed frequency. When a change occurs,and by how much, is shown in the accompanyingcharts.For example, assume 144.995 MHz is displayed with a20 kHz step size selected. Changing to a 25 kHz stepsize alters the displayed frequency to 144.975 MHz.5, 10, 15 or 20kHzStep Size- 12.5 or 25kHzStep SizeDisplayed Frequency(1 0 kHz/ 1 kHz)Displayed Frequency(1 0 kHz/ 1 kHz)00, 05, 10, 150020, 25, 30, 352540, 45, 50, 55-·5060, 65, 70, 75, 80, 85, 90, 957512.5 or 25kHzStep Size- 5, 10, 15 or 20kHzStep SizeDisplayed Frequency(1 0 kHz/ 1 kHz/ 500 Hz)Displayed Frequency(1 0 kHz/ 1 kHz)000012.510252037.530505062.560757087.58015From The N3UJJ.COM Document Library

DIRECT

From The N3UJJ.COM Document Library m 144 MHz FM Transceiver 430/440 MHz FM Transceiver TH-22A/22AT /22E TH-42A/ 42AT I 42E INSTRUCTION MANUAL KENWOOD CORPORATION