Instruction/ maintenance manual of the product HTX-400 Radio Shack
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Cat. No. 19- 1104 OWNER’S MANUAL Please read before using this equipment. HTX-400 Mini Handheld 70-Ce ntime ter FM Amateur Transceive r 19-1104rc.fm Page 1 Friday, August 27, 1999 8:31 AM.
2 FEATURES Your Radi oShack HTX-4 00 Mini Hand held 70-C entimate r FM Amateur Tr ansce iver is com pact and lightwe ight, m aking it easy to carry alm ost anywhe re. The cry stal contro lled circu itry pro- vides accu rate and s table freq uenc y sele cti on, ma king i t an ideal choice for yo ur amateur comm unicatio ns nee ds.
3 Paging Tones — yo u can s et the radio to play a shor t, sele ctable paging ton e wh en it trans mits, and sound the sa me ton e when i t receives a signal . Signal Strength Ind icator — a gr aduated ba r shows t he relative strength o f the rec eived s ignal.
4 MANUAL CONVENTIONS Your trans ceiver’s bu ttons perf orm multi ple funct ions. The ab bre- viation or s ymbol for a fu nction is pri nted on, b elow, o r above each bu tton. To act ivate cer tain t ransc eiv er feat ures, you mu st pr ess FUN C (functio n) and a nother button at the sam e time.
5 CONTENT S Intr oduction to Am ateur Radio ............. ............ ........... ......... 7 Preparation ...... ........... ............ ................ ............ ........... ......... 9 P o we r Sources ............ ................. ..........
6 Scanning O peration ........................ ........... ............ .............. 32 Scannin g f or Acti ve F requencies ....................... ........... ... 32 Using Sca n Dela y ...................... ........... ........... ......... 32 Scannin g Standard M emory Locations .
7 INTRODUCTION TO AMATEUR RADIO Your transcei ver is the perfe ct first radio for an yone enteri ng the exciting world of a mateur ra dio, as wel l as a grea t addi tional transceiv er for the ex perien ced amate ur radio ope rator.
8 Start st udying for th e licens e exams. Do not be intimid ated by the word “study ,” bec ause most p eople can go from kno wing abso- lutely nothin g about a mateur radio to p assing the Nov ice and Technic ian wri tten ex ams in l ess than a month.
9 PREPARA TION POWER SOURCES You can operate your transc eive r from any of thre e power sourc - es: • internal batteries • A C po we r (using an optio nal po wer s upply an d DC adap ter) • ve .
10 2. Press do wn and sli de the b attery compartment co ve r in the directio n of th e arrow marke d on the c ov er . 3. Put the batteries into the compar tment and on top of the attached ribbon, accordi ng to the polarity symbols (+ and –) marked in side the co mpar tment.
11 USING AC POWER You can op erate th e HTX-400 from AC pow er using a regulated power su pply c apable of s upply ing 13.8 VD C at least 1A and a vehicle power adapt er (see “Using Veh icle Battery Power” on Page 12). The sup ply sho uld also hav e an acces sory po wer socket into which the DC-to-DC power adap ter fits.
12 USING V EHICLE BAT TERY POWER You can p ower the HTX-400 fro m a vehi cle’s 12 V power s ource (such a s cigaret te-lighter s ocket) u sing an 9 -volt, 900 mA DC-to- DC pow er adapter an d a size I Ada ptaplug ® (n either s upplied) with TI P set to + .
13 CONNECTING THE A NTENNA Place the t hreaded ba se so ck et o f the su pp lie d an tenna ove r the antenna co nnector on top of the tran sceiver and tu rn the antenna clockw ise to ti ghten i t .
14 ATTACHING THE WRIST STRAP To attach the supp lied wri st strap to the top of t he belt cl ip, thread the strap ’s smal l loop t hrough the openin g in th e top of the clip. Then inse rt the longe r loop through the smal ler loop and pul l on the strap until the loop i s tigh t.
15 Caution: Use on ly microp hone an d speaker ac cess ories that do not share a commo n ground fo r the speak er and the microph one. Doing ot herwise migh t damage t he trans ceiver. Note: Insertin g a he adset’s plu g automatically disconn ects the in- ter na l sp ea ker.
16 USING THE MENUS USING THE HTX-400’S MENUS The HT X-400 p rovides t wo men us to access its features, t he Main Me nu and t he Tone Set Menu. To see det ails abou t each operatio n, refer t o the p age numbe r in th e follow ing chart. To acces s the M ain Menu, hold do wn FUNC while tur ning on the HTX-400.
17 Main Menu Options Setting ( ) = default setting Description P age tot Time out Timer (Off) On 10-990 sec onds Lim i ts tran s m it tim e. 40 PS Power S ave (Off) On Cycles power ( PS flashes) to the receiver section to conser ve batteries. The circuit remains off then tur ns on briefly to check f or an incoming s ignal.
18 The Tone Set M enu lets you set features that rel ate to sound and the CTCSS tones . To access the se settings, turn o n the HTX-400 then ho ld d own FUNC and press T .SET . (The tone opt ion ap- pears.) Pre ss FUNC + V or W to sele ct the option , then V or W to change the se tting.
19 A QUICK LOO K AT THE CONTROL S Most of th e co ntro ls of t he H T X-400 hav e m ul tip le functio ns . Use the followi ng chart to revie w the fun ction of e ach cont rol. Key/Contr ol Use it to: Use wi th the FUNC + Ke y to: VO L / O F F Turn the radio on/off.
20 (T .SET ) Change (decrease) the frequency by the v alue set for CS (see t he first menu option on P age 16). Accesses the T one Set Option men u and settings. MO (R EV) Press to override squelch. Press and hold to cycle through rC , tC , r , and CS s et- tings.
21 C (LOCK) Press once t o display and switch to the cur- rent call frequency. Hold down to change the call frequency and associated parame- ters, such as repeater offset and CTCSS tones. Lock the control (except PTT , MO , , VO L , and SQ ). Press again to unlock the controls.
22 A QUICK LOOK AT THE DISPLAY 1. F : appears when the FUNC key is pre ssed. 2. TX : appears when the ra dio is transmitting. 3. BUSY : appears when the radio receives a s ignal. 4. CALL : appears when tone squelch is on and the radio receives a matching tone.
23 OPERATION T URNING O N THE HTX-400 To turn on the HT X-400, rota te VO L / O F F clockw ise unt il it cl icks. The HTX-4 00 s oun ds a b r ief m el ody i f the k ey to ne fe atur e is en - abled. Th en HELLO app ears for about 2 se conds and the last used fr equency appear s.
24 RECEIVING T R ANSMISSIONS Follow these st eps to receive standa rd trans missio ns. 1. With the radio on, rotate SQ coun tercloc kwi se until y ou hear a hissin g sound. Then slow ly rotate SQ cloc kwis e just unt il the nois e stop s. Notes: • BUSY appear s wh en the H TX-400 receiv es a stand ard tra nsmission or if the s quelch i s open .
25 T RANSMITT ING There a re two basic ty pes of comm unica tion pos sible with t his transceiv er: radi o-di rec t-to -radi o (s im pl ex) or rad io -to re pea ter-t o radio (duple x). Simp lex operati on use s the same frequenc y to send and rece ive.
26 UNDERSTAND ING REP EATERS Operati on throu gh a repea ter, wher e you transmit o n one fre- quency and rec eive on ano ther , is ca lled duplex operation . Oper- ation direct to a nother station , wh ere yo u trans mit a nd rec eive on the sam e frequ ency, is calle d simple x operation.
27 SETTING THE REPE ATER OFFSET FREQUENCY The H TX-40 0’s defaul t repe at er off set is 5 MH z, whi ch appe ar s as 5.00 (MHz ) . Foll ow these steps to chang e the offs et. Note: T his s ett ing on ly aff ects t he VFO mo de . If yo u s av ed a fre - quency o ffset in a memo ry, that se tting i s not affe cted.
28 SETTING THE REPE ATER OFFSET DIRECTION 1. Set a n offset fre quenc y other th an 0.00 . 2. Pre ss FUNC + SC (R PT ) to se e t h e cu rr e nt of f se t di r ec t ion ( + abov e or – belo w). 3. Pre ss FUNC + MO ( REV ) to chan ge the re peater offset di rec- tion.
29 MEMOR Y OPE RATIO N Your HTX-400 has 30 stand ard memory locations tha t you can use to store frequencies for quick acc ess. For each memory loca - tion, you ca n also store other s ettings such as the repeater offset , CTCSS tones, and frequenc ies to pass or lo ck out duri ng scan- ning.
30 RECALLING MEMORIES To reca ll sa ved mem ory se ttin gs, pr ess MR so appears . Then press or to selec t the des ired m emor y loca tion. Press MR again to return to the VFO mode, (See “Selecting Fre- quencie s (Direc t Tuning)” on Page 23.) CLEARING A SINGLE ME MORY Follow these st eps to clear any sing le me mory loc ation.
31 USING THE CALLING -FREQUENCY MEMO RY The call ing-freq uency memory locatio n lets you qu ickl y jump to a specif ic frequen cy at any tim e. The def ault calli ng freque ncy is 446.
32 SCANNING OPERA TION SCANNING FOR ACTIVE F REQUENCIES 1. T o search f or activity o n a frequ ency , press SC . The trans- ceiv er begin s to sc an up or do wn the full freque ncy r ange , and it stops on each ac tiv e freque ncy f or the duration s et b y the sca n dela y option (s ee “Usi ng Scan D ela y” on P age 32).
33 Setting A Memory Locat ion to Al wa ys Skip During Scanning The HTX-400 is preset to inclu de all me mory locati ons (ex cept empty loc ations) du ring memor y scan ning . Follo w these s teps to set the tran scei ver to have it always skip (or res ume sca n- ning ) a s pecif ic lo cati on du ring scan ning.
34 T em poraril y Loc king Out (Skip ping) Locations During Memory Scanning You can set the transceive r to lock out a loca tion while scanning the frequ encies s tored i n memory. When the tra nsceive r stops at a memory loc ation you w ant to skip, pres s FUNC .
35 CONTIN UOUS T ONE CODED SQUELCH SYSTEM FE ATU RES Your HTX-400 ca n transmi t and receive a low-l evel, selectable subaudib le tone at th e s ame tim e a s i t tran smits (TX) o r rec eiv es (RX) a regu lar si gnal.
36 To selec t an d s tore a CTCSS s uba udi bl e ton e in a m em ory loc a- tion, p ress MR . and the la st used memory locati on appe ar . (In the ex ample s sho wn on the pre ceding pa ge , memo ry loc ation 2 is us ed.) The n follow the prece ding St eps 1–5.
37 T ONE PAG ING You can s et the HTX-40 0 t o s oun d a n a le rt to ne when it receiv es a transmi ssio n th at inclu des th e curr entl y se t suba udible rece ive- tone (or any transmi ssion, if the recei ve-tone or the tone feature is set to off).
38 OTHER SPECIAL FEATURE S CHANGING THE T RANSMIT FREQUENCY RANGE You can cha nge t he stand ard tra nsmit f requenc y ran ge from 430–450 MHz to an ex tended rang e of 42 0–450 MHz. To set th e transceiver to its extende d range , turn of f the transc eiv- er, the n hold do wn SC and turn on the tra nsceive r again.
39 T URNING T HE KEY T ONE ON AND OFF The transc eiver is pre set to so und a beep e ach time you p ress a key. To t urn off the beep , press FUNC + ( BEEP) . disappe ars. To restore t he key tone, press FUNC + ( BEEP ) again . Note : If th e key tone feature is dis abled, t he po wer-on t one does not sound.
40 POWER SAVE The pow er sav e feature lets the ra dio c onserve ba ttery power b y turning o ff power to the rece iver sec tion and pe riodic ally turni ng it on to chec k for a tran smissi on. Use the Main Menu to set the power save o ption (see “U sing the HT X-400’s Me nus” on Page 16).
41 REDUCING SQUELC H T AIL If you are com municat ing with a repea ter or another sta tion using subaudib le ton es, yo u can el imina te the squelch tail (t he burst of noise the oth er person hears when yo u stop transmitt ing) by turn- ing on the transm it delay optio n.
42 T R OUBLESH OOTIN G If your transc eiver is not wor king as it shoul d and it displ ays an error mes sage, t hese sugg estio ns might h elp yo u elimin ate the probl em. If the transceiv er still d oes n ot operate p roperly , take it to your l ocal RadioSha ck store for assis tance .
43 CARE AND MAINT ENANCE Your Radi oShack HTX-40 0 Mini Han dheld 70-Centimete r FM Amateur Transcei ver i s an e xample of s uperior design and craftsm anship. T he fol lowing sugge stions wi ll hel p you c are for your transc eiv er so yo u can enj oy it for years.
44 USING THE KEYPAD DIA GNOSTIC The HT X-40 0 h as a bu ilt -in di agn os tic p rogra m tha t l ets y ou c on- firm whet her the keyp ad switch es are function ing correctl y. To use this diag nostic p rogram, follow t hese ste ps. 1. Ho ld down MO ( REV ) and turn on the tr ansc eiv er .
45 SPECIFICAT IONS GENERAL F requency: RX ................. ........... ........... ................. ...... 420–470 MHz TX ....................... ............ ........... ........... ...... 430–450 MHz Extended T X Range .. ........... .........
46 NOTES 19-1104rc.fm Page 46 Friday, August 27, 1999 8:31 AM.
47 19-1104rc.fm Page 47 Friday, August 27, 1999 8:31 AM.
08A99 Printed in Korea Limited O ne-Y ear W arranty This product i s warrante d by Rad ioShac k against manufac turing def ects in materi al and workman ship unde r normal use for one (1 ) year fr om the d ate of purcha se from Ra dioShack com pany-ow ned stores and authori zed Ra - dioSha ck franchi sees and de alers.
An important point after buying a device Radio Shack HTX-400 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Radio Shack HTX-400 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Radio Shack HTX-400 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Radio Shack HTX-400 you will learn all the available features of the product, as well as information on its operation. The information that you get Radio Shack HTX-400 will certainly help you make a decision on the purchase.
If you already are a holder of Radio Shack HTX-400, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Radio Shack HTX-400.
However, one of the most important roles played by the user manual is to help in solving problems with Radio Shack HTX-400. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Radio Shack HTX-400 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
