jotron RA-7203 User manual

RA - 7203
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1 DISPLAY
2 FbA (Function button A)
3 RS (Rotary switch)
4 SQUELCH LED
5 REMOTE LED
6 FRONT CONNECTOR
7 FbB (Function button B)
8 FbC (Function button C)
9 ON/OFF
10 ALARM LED
11 STANDBY LED
12 LOUDSPEAKER
VHF Receiver

RA - 7203
Front RJ45 connector
Front Connector, RJ45
Name PIN Purpose
SEL 1
TDO 2
Headset 3
RS232 4RS232 Tx
RS232 5RS232 Rx
TMS 6
+12VDC 7+12 VDC to external equipment (10mA)
GND 8Common ground

RA - 7203
Technical data, 1 of 4
Standards; ICAO annex 10, EN300 676(AM, AM-MSK),
EN301 841(VDL2 – Physical layer)
Environmental: Temperature range -20°C to +55°C (operating) -
40°C to +70°C (storage) Humidity 90% @+40°C
(non condensing)
Shock Transport: IEC-721-3-2, Class 2M3
Vibration Transport: IEC-68-2-32, Class 2M3. IEC-68-2-6
EMC EN 301 489 – part 22
Weight: 1.7 kg
Dimension: 71mm (14TE)(W) * 230mm(D) * 128mm (H)

RA - 7203
Frequency response: 300-3400 Hz 350-2500 Hz
Data ports: RS232, RS485, 100/10BaseT
Protocol: (SNMP v.2) Simple Network Management
RS232/RS485 Jotron proprietary
BITE monitoring: VSWR, Voltages, Currents, Levels, Lock
detect, Temperature, Output power, Reflected
power, a.o.
Supply voltage: AC 115/230VAC +15/-10% / 50-60Hz Supply
voltage, DC 21.6 - 31.2VDC negative ground
MTBF: >10 years / unit
MTTR: <30 minutes at lowest replaceable unit
Technical data, 2 of 4

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Technical data, 3 of 4
Receiver AM 25kHz AM 8.33kHz
Sensitivity analogue @1μV / 30% pd: 10dSINAD(CCITT)
Adjacent channel rejection: >70dB >60dB
Intermodulation (3 signal): >70 dBc
IF bandwidth: +/- 11kHz +/-2.8kHz
Image and IF frequency response: >110 dB
Squelch operation: Adjustable 107dBm, 30dB
S/N + carrier override
Activation time <20ms
Hysteresis <3dB
Audio AGC: 30%-90%, <1dB variation
Noise blanker: IF: Selectable ON/OFF
Signal / Noise: >45dB on any output @100μV,
30%

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Technical data, 4 of 4
AGC range: -107dBm to +5dBm
AGC attach time: <50ms
AGC decay time: <200ms
Inband squelch signal: Configurable tones: 150-3400Hz
Line output: 600Ω, -36 - +7dBm @90%
modulation
Harmonic distortion: <3% @90% AM (line output)
Crossmodulation: >85dB @ 100 kHz frequency offset
Blocking: >100dB @1MHz offset, >110 dB out
of band signals
Dynamic range: >110dB
Spurious response rejection: >90dB

RA - 7203
Menus, 1 of 16
FbA
RS
FbB
FbC
NOTE!
RS can be pressed and turned.
The radio is controlled through an advanced menu system.
The access for each menu is restricted by a user parameter.
The System Operator can change all user parameters from SNMP, or
from the menu using a hardware key.

RA - 7203
Menus, 2 of 16
User
parameter: Name of menu: Access and restrictions:
1System operator Full access to all parameters
(R/W by System Operator)
2Technician Access to some settings in RX
menu system + bite (R/O)
3Operators Access only to Volume,
Frequency and memory store
and recall
4Restricted Restricted to Volume, Squelch
and memory recall
There are four access user levels:

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Menus, 3 of 16
Push RS to switch in the operator menu
When operated locally, the operator has full access to all facilities
using the various controls at the front panel.

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Menus, 4 of 16
Push menu button to enter MAIN MENU

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Menus, 5 of 16

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Menus, 6 of 16

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Menus, 7 of 16
RX config subtree menu, 1 of 2

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Menus, 8 of 16
RX config subtree menu, 2 of 2

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Menus, 9 of 16
Interface config subtree menu, 1 of 2

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Menus, 10 of 16
Interface config subtree menu, 2 of 2

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Menus, 11 of 16
Bite system subtree, 1 of 2

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Menus, 12 of 16
Bite system subtree, 2 of 2

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Menus, 13 of 16
To maneuver in the menu systems, use the up-button FbA,
the down-button FbB or (preferably) turn the RS.
The different submenus are selected by pressing the rotary
switch and turning up/down until the desired menu is
reached. (FbA, FbB and FbC may be used as well)
To return to previous menu, press RS (or FbC) when “ ,,,” is
selected in the present menu.
The RA-7203 will enter the Operator menu when turned
“ON”.

RA - 7203
Menus, 14 of 16
Operator menu, 1 of 3
PressRS
Press RS
Press RS
Normal operating display with active
squelch. Press Fb C to mute squelch.
Normal operating display with no channels
stored. Press Fb C to recall stored channels.
Set loudspeaker volume by turning RS.
Press FbC to mute loudspeaker.
Set headset volume by turning RS.
Press FbC to mute headset.
Press RS