jotron RA-7203C User Manual

Jotron AS| TR7750C: Operators Manual  Operating Instructions
Page 5-23
P/N: 84748 (G)
Menu path:
RX config ►
Parameter
Range
Default
Details
Squelch
Inband level
-30 to -10
-24
The level of the inband tone relative to the
setting in the line level output level in dB,
Applicable to the line interface output only.
Squelch
SqOut output
Set the behavior of the SqOut output (AUX2,
p.1 and p.2).
Squelch
RxBusy output
Closed | Open |
Closed on busy|
Open on busy
Closed on
busy
Set the behavior of the RxBusy output
(REM, p.5).
Calibrate
Ref oscillator
-127 – +128
0
This setting is used to fine adjust (calibrate)
the reference oscillator of the receiver. The
full range is approximately 10 ppm. This
setting should be used with care, and only
when a calibrated frequency measuring
instrument is used to measure the frequency
of the receiver.
The exact frequency of the receiver can be
determined either by connecting a spectrum
analyzer to the antenna connector of the
receiver and measure the leakage of the LO
output (45 MHz above the operating
frequency) – or by using a radio test set to
measure the bandwidth of the receiver and
adjust until centre is on the operating
frequency.
Calibrate
RSSI reading
-10 to +10 dB
0 dB
In order to measure the RSSI level exactly,
there is a provision to calibrate the reading.
Normally the reading is within +/-2 dB
without calibration, but it can be useful if to
signals are being compared.
Factory preset
0, 1
0
Writing a “1” to this parameter will reset the
receiver and restore the settings that where
set before shipping from the factory. Use
with care – all settings that has been
changed will be reset!
Table 5.9-2, RX config group, receiver
5.9.3 Interface config group
Menu path:
Interface
config ►
Parameter
Range
Default
Details
Access control
SysOp,
Technician,
Operator,
Restricted
SysOp
Set the user access level for local control.
This setting limits the availability of some
menus, depending on the access level. In
order to set the access level from the user
interface, a special hardware key must be
inserted into the microphone/headset
connector. Details of the key is available in
chapter Error! Reference source not
ound..
Set language
Depending on
model
English
Set the language to use on the user
interface. Availability of different languages
depends on specifications when ordering
the receiver.
Alarm config
Alarm pin pullup
Disabled |
Enabled
Enabled
The ALARM_OUT_P and ALARM_OUT_N
output pins on AUX1 is used to signal that
the radio has an alarm. This parameter
applies a pullup voltage to ALARM_OUT_P
when there are no alarms present. When an
alarm is detected the relay contact close.

jotron RA-7203C Specifications

General

Brand	jotron
Model	RA-7203C
Category	Radio
Language	English