WisyCom CTK38, Руководство пользователя

Страница: 6 / 12

Rev. 01
CTK38 User Manual
5
R
EAR
P
ANEL
7) CONNECTOR: antenna (N-F type connector).
8) CONNECTOR: modulation audio input (XLR3-F type connector).
The audio input line is transformer balanced and floating.

pin 1 = ground;

pin 2 = AF-a input;

pin 3 = AF-b input.
9) CONNECTOR: transmission activation (Push To Talk) (mono ¼” - 6.3 mm, standard jack
type).
The transmission is allowed when the central pin (hot) is connected to external ring
(ground).
Note #1 : in the standard version of CST 38, when the PTT plug is not inserted, the carrier
is still activated.
Instead, when the CST 38 is provided with the optional VOX 38 – Voice Activated Circuit
board, the carrier is activated automatically only when the input audio-signal reaches the
activation-threshold pre-set in the VOX 38 board. However, the external PTT circuit (if
connected) can override the VOX 38 device and force the CST 38 in continuous
transmission.
10) CONNECTOR: dc power input (10.5 ÷ 16 Vdc).
(

pin 1 = +Vdc,

pin 2 = ground).