SECTION 3 - BASIC OPERATION
STATION ID
The Station ID option functions so that the Тегт1пА1~гцШша4ДсаДЗ-У identi-
f
ies~TtseTf every”T5
°r 30 minutes. The Station ID is sent as Morse Code
audio at 25"words per'minute'ГТТтёГcall sign, up to 8 characters, may
consist of letters A-Z or numbers 0-9. Through programming, the Station ID
may be enabled or disabled, the period selected, and the call sign set.
Several circumstances determine when the Station ID will be transmitted.
First, it must be enabled and the period since the last ID must have
expired. Next, the Terminal must already have keyed the transmitter to do
paging; the Terminal will not key up just to transmit the Station ID.
Finally, the ID is sent after the paging data so that no page is delayed by
the ID transmission.
REMOTE CONTROL
The remote control interface consists of an ASIC programmed for remote
control tone and modem tone generation. The tones are started immediately
following activation of the PTT relay. These tones appear at the TX AUD
HI and TX AUD L0 outputs. When the Model 16 is programmed for remote
control operation, the duration for the High Level Guard Tone (HLGT) is
programmed to accommodate the number of control links involved for the
site. The HLGT duration is programmed as a number of link delays (1 - 7) and
is calculated as follows: 120 ms for the first link delay, and 300 ms is
added for each additional link delay.
3-7
