Jotron AS| TR7750C: Operators Manual Installation
P/N: 84748 (G)
Menu path:
Radio control
►
Set the low power level of the transmitter in 1
dB steps. The low power level is the output
power of the transmitter when the transmitter
is set to low power, either by a command or
by an external input signal.
30 dBm corresponds to 1W output, 41 dBm
is 12W ouput.
This setting is useful when the transmitter is
used together with external equipment such
as T/R relays, power amplifier or other
equipment that includes RF switchover
relays.
Since the RF switching in the transmitter is
done electronically, the RF is produced in
less than 10ms after the PTT signal is
detected. It could be harmful for the external
relays if the RF is applied to them before
switchover has occurred.
In order to delay the RF carrier this
parameter should be used under such
circumstances. A reasonable setting should
be in the order of 40-50 ms.
Table 4.6-9, Misc. settings, transmitter.
4.7 Applications
4.7.1 Transceiver, local configuration
In a transceiver setup for local configuration, the mic and headset signals are interfaced to the
microphone/headset connector on the transmitter. The headphone signal can also be derived from
the headset connector on the transmitter.
Connection for local operation is shown in
Figure 4.7-1 and tab.
Figure 4.7-1, Transceiver, Local configuration, interfacing
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