Kenwood TH-D75 User Manual - Page 38
Dual Tone Multi-frequency(dtmf), Manual Dialing, Automatic Dialer
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11 DUAL TONE MULTI-FREQUENCY(DTMF) The keys on the keypad function as DTMF keys; the 12 keys found on a push-button telephone plus 4 additional keys (A, B, C, D). This transceiver provides 10 dedicated memory channels. You can store a DTMF code with up to 16 digits. Some repeaters in the U.S.A. and Canada offer a service called Autopatch. You can access the public telephone network via such a repeater by sending DTMF tones. For further information, consult your local repeater reference. DTMF Hold Activate this function to remain in transmit mode, after beginning to press keys when making a call. 1 Access Menu No. 162. MANUAL DIALING Manual Dialing requires only two steps to send DTMF tones. 1 Press and hold [PTT]. 2 Press the keys in sequence on the keypad to send DTMF tones. • The corresponding DTMF tones are transmitted. • If the DTMF Hold function is activated, you do not need hold down [PTT] while pressing keys. After transmitting the first tone (by pressing [PTT] and the first key), pressing additional keys will keep the transceiver in transmit mode for 2 seconds. Selecting a Transmit Speed Some repeaters may not respond correctly if a DTMF code is transmitted at fast speed. If this happens, change the DTMF code transmission speed. 1 Access Menu No. 160. 2 Set DTMF Hold to [On] to continue transmitting when pressing keys. • Set this menu to [Off] to stop the 2 second continuous transmission. AUTOMATIC DIALER There are 10 dedicated DTMF Memory channels available to store DTMF codes. You can store up to 16 digits in each channel. Storing a DTMF Code in Memory 1 Access Menu No. 163. 2 Select [50], [100], or [150] msec. Selecting a Pause Duration You can change the pause duration stored in DTMF Memory channels. 1 Access Menu No. 161. 2 Select a channel number, then press [ENT]. The name entry display appears. 3 Enter a name for the channel, then press [ENT] to set it. 2 Select [100], [250], [500], [750], [1000], [1500], or [2000] msec. 4 Press [ENT]. The code entry display appears. 11-1