Jotron AS RA-7203 VHF AM Receiver User Manual YOUR COMMUNICATION PARTNER

Jotron AS VHF AM Receiver YOUR COMMUNICATION PARTNER

user manual

RA - 72031234567891011121 DISPLAY2 FbA (Function button A)3 RS (Rotary switch)4 SQUELCH LED5 REMOTE LED6 FRONT CONNECTOR 7 FbB (Function button B)8 FbC (Function button C)9 ON/OFF10 ALARM LED11 STANDBY LED12 LOUDSPEAKERVHF Receiver
RA - 7203Front RJ45 connectorFront Connector, RJ45Name PIN PurposeSEL 1TDO 2Headset 3RS232 4RS232 TxRS232 5RS232 RxTMS 6+12VDC 7+12 VDC to external equipment (10mA)GND 8Common ground
RA - 7203Technical data, 1 of 4Standards; 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 22Weight: 1.7 kgDimension: 71mm (14TE)(W) * 230mm(D) * 128mm (H)
RA - 7203Frequency response: 300-3400 Hz 350-2500 HzData ports: RS232, RS485, 100/10BaseT Protocol: (SNMP v.2) Simple Network ManagementRS232/RS485 Jotron proprietaryBITE 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 unitTechnical data, 2 of 4
RA - 7203Technical data, 3 of 4Receiver AM 25kHz AM 8.33kHzSensitivity analogue @1μV / 30% pd: 10dSINAD(CCITT)Adjacent channel rejection: >70dB >60dB Intermodulation (3 signal): >70 dBcIF 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%
RA - 7203Technical data, 4 of 4AGC 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 - 7203Menus, 1 of 16FbARSFbBFbCNOTE! 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, orfrom the menu using a hardware key.
RA - 7203Menus, 2 of 16Userparameter: Name of menu: Access and restrictions:1System operator Full access to all parameters(R/W by System Operator)2Technician Access to some settings in RXmenu system + bite (R/O)3Operators Access only to Volume,Frequency and memory storeand recall4Restricted Restricted to Volume, Squelchand memory recallThere are four access user levels:
RA - 7203Menus, 3 of 16Push RS to switch in the operator menuWhen operated locally, the operator has full access to all facilities using the various controls at the front panel.
RA - 7203Menus, 4 of 16Push menu button to enter MAIN MENU
RA - 7203Menus, 5 of 16
RA - 7203Menus, 6 of 16
RA - 7203Menus, 7 of 16RX config subtree menu, 1 of 2
RA - 7203Menus, 8 of 16RX config subtree menu, 2 of 2
RA - 7203Menus, 9 of 16Interface config subtree menu, 1 of 2
RA - 7203Menus, 10 of 16Interface config subtree menu, 2 of 2
RA - 7203Menus, 11 of 16Bite system subtree, 1 of 2
RA - 7203Menus, 12 of 16Bite system subtree, 2 of 2
RA - 7203Menus, 13 of 16To 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 - 7203Menus, 14 of 16Operator menu, 1 of 3PressRSPress RSPress RSNormal 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
RA - 7203Menus, 15 of 16Operator menu, 2 of 3Press RSPress RSPress RSSet 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.
RA - 7203Menus, 16 of 16Operator menu, 3 of 3Press FbAPress FbAPress FbCSelect 8,33kHz steps by turning RS. For no changespress FbC.Select 100kHz steps by turning RS.Select 1MHz steps by turning RS.Press FbC to store new frequency and return.
RA - 7203Rear RJ45 connectors, 1 of 5123456781 ANTENNA CONNECTOR2 EARTH TAG3 DC INPUT CONNECTOR4 AC INPUT CONNECTOR5 LAN CONNECTOR6 AUX 1 CONNECTOR7 AUX 2 CONNECTOR8 REMOTE CONNECTOR
RA - 7203LAN interface connectorName PIN PurposeLAN_TXP 1Tx dataLAN_TXN 2Tx dataLAN_RXP 3Rx dataLAN_D3P 4OptionalLAN_D3N 5OptionalLAN_RXN 6Rx dataLAN_D4P 7OptionalLAN_D4N 8OptionalRear RJ45 connectors, 2 of 5
RA - 7203Aux 1 connectorName PIN PurposeALARM_P 1Alarm out – releALARM_N 2Alarm out – releSelect_in_P 3Select in – opto isolatedRS232_S 4RS232 Send dataRS232_R 5RS232 Receive dataSelect_in_N 6Select in – opto isolated+12V 712V output to extequipment (D/O: 200mA)GND 8Common ground Rear RJ45 connectors, 3 of 5
RA - 7203AUX 2 connectorName PIN PurposeSquelch_out_P 1Squelch out - opto isolatedSquelch_out_N 2Differential – opto isolatedAGC_HILO_P 3Hi / Lo depending on input signal(configurable) NC 4NC 5AGC_HILO_N 6Differential – opto isolatedAGC_ OUT 7NC 8Rear RJ45 connectors, 4 of 5
RA - 7203REM connector (Interface to transmitter)Name PIN PurposeRS485_Z 1RS485 (-)RS485_Y 2RS485(+)LINE_P 3Diff. line output from RX, 600 ohmTX_BUSY 4TX Busy indicator input (Mute input)RX_BUSY 5RX Busy indicator output (Repeater KeyOutput – Tx in repeater mode)LINE_N 6Diff. line output from RX, 600 ohmALARM 7Low=Alarm (Note: I/O – low input will also be recognizedas an alarm (EXT))GND 8Common ground Rear RJ45 connectors, 5 of 5
RA - 7203External wiringRJ45 KRONE

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