Kenwood TM-481A Instruction Manual

Also see for TM-281A: Instruction manual Service manual Instruction manual Service manual

Contents

4810DUAL TONE MULTI-FREQUENCY (DTMF) FUNCTIONSThis transceiver provides you with 10 dedicated DTMFMemory Channels. You can store a DTMF number (16digits max.) in each of these channels to recall later forspeed dialing.Many repeaters in the U.S.A. and Canada offer a servicecalled Autopatch. You can access the public telephonenetwork via such a repeater by sending DTMF tones. Forfurther information, consult your local repeater reference.MANUAL DIALINGThe keys on the Mic keypad function as DTMF keys;the 12 keys found on a push-button telephone plus 4additional keys (A, B, C, D).To perform Manual Dialing, follow the steps below.1 Press and hold Mic [PTT] to transmit.2 While transmitting, press the keys in sequence on thekeypad, to send the DTMF tones.• The corresponding DTMF tones are transmitted.1 2 3 A4 5 6 B7 8 9 C0 # DFreq. (Hz)6971209 1336 1477 1633770852941• When DTMF TX Hold is activated {page 49}, you donot need to continuously press Mic [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 M ONITORWhen pressing the Mic DTMF keys, you will not hearDTMF tones emitted from the speaker. However, youcan monitor the DTMF tones if desired.1 Press [F], [MENU] and turn the Tuning control toselect Menu No. 33 (DT.M).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 tocancel.4 Press any key other than [MENU] to exit Menu Mode.