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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
RA - 7203
VHF Receiver
1
2
3
4
5
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Summary of Contents for jotron RA-7203

  • Page 1 RA - 7203 VHF Receiver DISPLAY FbA (Function button A) RS (Rotary switch) SQUELCH LED REMOTE LED FRONT CONNECTOR FbB (Function button B) FbC (Function button C) ON/OFF 10 ALARM LED 11 STANDBY LED LOUDSPEAKER...
  • Page 2 RA - 7203 Front RJ45 connector Front Connector, RJ45 Name Purpose Headset RS232 RS232 Tx RS232 RS232 Rx +12VDC +12 VDC to external equipment (10mA) Common ground...
  • Page 3 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.
  • Page 4 Technical data, 2 of 4 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...
  • Page 5 RA - 7203 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...
  • Page 6 RA - 7203 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:...
  • Page 7 RA - 7203 Menus, 1 of 16 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.
  • Page 8 RA - 7203 Menus, 2 of 16 There are four access user levels: User Name of menu: Access and restrictions: parameter: System operator Full access to all parameters (R/W by System Operator) Technician Access to some settings in RX menu system + bite (R/O) Operators Access only to Volume, Frequency and memory store...
  • Page 9 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...
  • Page 10 RA - 7203 Menus, 4 of 16 Push menu button to enter MAIN MENU...
  • Page 11 RA - 7203 Menus, 5 of 16...
  • Page 12 RA - 7203 Menus, 6 of 16...
  • Page 13 RA - 7203 Menus, 7 of 16 RX config subtree menu, 1 of 2...
  • Page 14 RA - 7203 Menus, 8 of 16 RX config subtree menu, 2 of 2...
  • Page 15 RA - 7203 Menus, 9 of 16 Interface config subtree menu, 1 of 2...
  • Page 16 RA - 7203 Menus, 10 of 16 Interface config subtree menu, 2 of 2...
  • Page 17 RA - 7203 Menus, 11 of 16 Bite system subtree, 1 of 2...
  • Page 18 RA - 7203 Menus, 12 of 16 Bite system subtree, 2 of 2...
  • Page 19 (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”.
  • Page 20 RA - 7203 Menus, 14 of 16 Operator menu, 1 of 3 Normal operating display with active squelch. Press Fb C to mute squelch. PressRS Normal operating display with no channels stored. Press Fb C to recall stored channels. Press RS Set loudspeaker volume by turning RS.
  • Page 21 RA - 7203 Menus, 15 of 16 Operator menu, 2 of 3 Set squelch level by turning RS. Press FbC to mute squelsh. Press RS See next page how to select frequency. Press RS Press FbC to store new frequency on specified channel.
  • Page 22 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 Select 100kHz steps by turning RS. Press FbA Select 1MHz steps by turning RS. Press FbC Press FbC to store new frequency and return.
  • Page 23 RA - 7203 Rear RJ45 connectors, 1 of 5 ANTENNA CONNECTOR EARTH TAG DC INPUT CONNECTOR AC INPUT CONNECTOR LAN CONNECTOR AUX 1 CONNECTOR AUX 2 CONNECTOR REMOTE CONNECTOR...
  • Page 24 RA - 7203 Rear RJ45 connectors, 2 of 5 LAN interface connector Name PIN Purpose LAN_TXP Tx data LAN_TXN Tx data LAN_RXP Rx data LAN_D3P Optional LAN_D3N Optional LAN_RXN Rx data LAN_D4P Optional LAN_D4N Optional...
  • Page 25 RA - 7203 Rear RJ45 connectors, 3 of 5 Aux 1 connector Name PIN Purpose ALARM_P Alarm out – rele ALARM_N Alarm out – rele Select_in_P Select in – opto isolated RS232_S RS232 Send data RS232_R RS232 Receive data Select_in_N Select in –...
  • Page 26 RA - 7203 Rear RJ45 connectors, 4 of 5 AUX 2 connector Name Purpose Squelch_out_P Squelch out - opto isolated Squelch_out_N Differential – opto isolated AGC_HILO_P Hi / Lo depending on input signal (configurable) AGC_HILO_N Differential – opto isolated AGC_ OUT...
  • Page 27 RA - 7203 Rear RJ45 connectors, 5 of 5 REM connector (Interface to transmitter) Name PIN Purpose RS485_Z RS485 (-) RS485_Y RS485(+) LINE_P Diff. line output from RX, 600 ohm TX_BUSY TX Busy indicator input (Mute input) RX_BUSY RX Busy indicator output (Repeater Key Output –...
  • Page 28: External Wiring

    RA - 7203 External wiring RJ45 KRONE...