RA - 7203 VHF Receiver FbA (Function button A) 1 DISPLAY 2 3 RS (Rotary switch) 4 SQUELCH LED 5 REMOTE LED 6 7 8 9 ON/OFF 10 ALARM LED 11 STANDBY LED 12 LOUDSPEAKER FRONT CONNECTOR FbB (Function button B) FbC (Function button C) 1 2 3 4 5 6 7 8 9 10 11 12 RA - 7203 Front RJ45 connector Name SEL TDO Headset RS232 RS232 TMS
+12VDC GND PIN 1 2 3 4 5 6 7 8 Front Connector, RJ45 Purpose RS232 Tx RS232 Rx
+12 VDC to external equipment (10mA) Common ground RA - 7203 Technical data, 1 of 4 Standards;
Environmental:
Shock Transport:
Vibration Transport:
Weight:
Dimension:
ICAO annex 10, EN300 676(AM, AM-MSK), EN301 841(VDL2 Physical layer) Temperature range -20C to +55C (operating) -
40C to +70C (storage) Humidity 90% @+40C
(non condensing) IEC-721-3-2, Class 2M3 IEC-68-2-32, Class 2M3. IEC-68-2-6 EMC EN 301 489 part 22 1.7 kg 71mm (14TE)(W) * 230mm(D) * 128mm (H) RA - 7203 Technical data, 2 of 4 Frequency response: 300-3400 Hz 350-2500 Hz Data ports:
Protocol:
RS232, RS485, 100/10BaseT
(SNMP v.2) Simple Network Management RS232/RS485 Jotron proprietary VSWR, Voltages, Currents, Levels, Lock detect, Temperature, Output power, Reflected power, a.o. AC 115/230VAC +15/-10% / 50-60Hz Supply voltage, DC 21.6 - 31.2VDC negative ground
>10 years / unit
<30 minutes at lowest replaceable unit BITE monitoring:
Supply voltage:
MTBF:
MTTR:
RA - 7203 Technical data, 3 of 4 AM 25kHz Receiver Sensitivity analogue @1V / 30% pd: 10dSINAD(CCITT) Adjacent channel rejection:
Intermodulation (3 signal):
IF bandwidth:
Image and IF frequency response:
Squelch operation:
AM 8.33kHz
+/-2.8kHz
>60dB
>70dB
>70 dBc
+/- 11kHz
>110 dB Adjustable 107dBm, 30dB S/N + carrier override Activation time <20ms Hysteresis <3dB 30%-90%, <1dB variation IF: Selectable ON/OFF
>45dB on any output @100V, 30%
Audio AGC:
Noise blanker:
Signal / Noise:
RA - 7203 Technical data, 4 of 4 AGC range:
AGC attach time:
AGC decay time:
Inband squelch signal:
Line output:
Harmonic distortion:
Crossmodulation:
Blocking:
-107dBm to +5dBm
<50ms
<200ms Configurable tones: 150-3400Hz 600, -36 - +7dBm @90%
modulation
<3% @90% AM (line output)
>85dB @ 100 kHz frequency offset
>100dB @1MHz offset, >110 dB out of band signals
>110dB Dynamic range:
Spurious response rejection: >90dB RA - 7203 Menus, 1 of 16 FbA RS FbC NOTE!
RS can be pressed and turned. FbB 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 There are four access user levels:
User parameter:
Name of menu:
Access and restrictions:
1 2 3 4 System operator Technician Operators Restricted Full access to all parameters
(R/W by System Operator) Access to some settings in RX menu system + bite (R/O) Access only to Volume, Frequency and memory store and recall Restricted to Volume, Squelch and memory recall RA - 7203 Menus, 3 of 16 When operated locally, the operator has full access to all facilities using the various controls at the front panel. Push RS to switch in the operator menu RA - 7203 Menus, 4 of 16 Push menu button to enter MAIN MENU RA - 7203 Menus, 5 of 16 RA - 7203 Menus, 6 of 16 RA - 7203 Menus, 7 of 16 RX config subtree menu, 1 of 2 RA - 7203 Menus, 8 of 16 RX config subtree menu, 2 of 2 RA - 7203 Menus, 9 of 16 Interface config subtree menu, 1 of 2 RA - 7203 Menus, 10 of 16 Interface config subtree menu, 2 of 2 RA - 7203 Menus, 11 of 16 Bite system subtree, 1 of 2 RA - 7203 Menus, 12 of 16 Bite system subtree, 2 of 2 RA - 7203 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 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. PressRS Press RS Press RS Press RS RA - 7203 Menus, 15 of 16 Operator menu, 2 of 3 Set squelch level by turning RS. Press FbC to mute squelsh. See next page how to select frequency. Press FbC to store new frequency on specified channel. Select storing channel by turning RS. Select brightness level by turning RS. Press RS Press RS Press RS RA - 7203 Menus, 16 of 16 Operator menu, 3 of 3 Select 8,33kHz steps by turning RS. For no changes press FbC. Press FbA Press FbA Press FbC Select 100kHz steps by turning RS. Select 1MHz steps by turning RS. Press FbC to store new frequency and return. RA - 7203 Rear RJ45 connectors, 1 of 5 EARTH TAG 1 ANTENNA CONNECTOR 2 3 DC INPUT CONNECTOR 4 AC INPUT CONNECTOR 5 6 AUX 1 CONNECTOR 7 AUX 2 CONNECTOR 8 REMOTE CONNECTOR LAN CONNECTOR 1 2 3 4 5 6 7 8 RA - 7203 Rear RJ45 connectors, 2 of 5 LAN interface connector Name LAN_TXP LAN_TXN LAN_RXP LAN_D3P LAN_D3N LAN_RXN LAN_D4P LAN_D4N PIN Purpose Tx data 1 2 Tx data Rx data 3 4 Optional 5 Optional Rx data 6 7 Optional 8 Optional RA - 7203 Rear RJ45 connectors, 3 of 5 Name ALARM_P ALARM_N Select_in_P RS232_S RS232_R Select_in_N 6 7
+12V Aux 1 connector PIN Purpose 1 2 3 4 RS232 Send data 5 RS232 Receive data Alarm out rele Alarm out rele Select in opto isolated Select in opto isolated 12V output to ext equipment (D/O: 200mA) GND 8 Common ground RA - 7203 Rear RJ45 connectors, 4 of 5 Name Squelch_out_P Squelch_out_N AGC_HILO_P NC NC AGC_HILO_N AGC_ OUT NC AUX 2 connector PIN Purpose 1 2 3 Squelch out - opto isolated Differential opto isolated Hi / Lo depending on input signal
(configurable) 4 5 6 7 8 Differential opto isolated RA - 7203 Rear RJ45 connectors, 5 of 5 REM connector (Interface to transmitter) Name RS485_Z RS485_Y LINE_P TX_BUSY RX_BUSY LINE_N ALARM PIN Purpose 1 RS485 (-) 2 RS485(+) 3 Diff. line output from RX, 600 ohm 4 5 RX Busy indicator output (Repeater Key TX Busy indicator input (Mute input) Output Tx in repeater mode) 6 Diff. line output from RX, 600 ohm 7 Low=Alarm
(Note: I/O low input will also be recognized as an alarm (EXT)) GND 8 Common ground RA - 7203 External wiring RJ45 KRONE