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AOR AR3030 Receiver Fitting The VHF Converter Instructions

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    Page 1 Fitting the VHF converter to the AR3030 receiver (Rev 1.1) The following information is applicable to both the VHF AM (airband) and VHF NFM (marine converter). Only one converter may be fitted at a time (they are not intended to be interchangeable). Both are in fact capable of all mode reception. The fitting is recommended to be carried out in an experienced specialist receiver workshop. STEP 1 Check that the following parts have been included in the packaging (cable colours may vary): 1....
    Page 2 Remove the top case. There are FOUR COUNTERSUNK screws on the top and FOUR CHEESE-HEAD screws on the side (two either side). Remove the bottom case. There are FOUR COUNTERSUNK screws on the top and FOUR CHEESE-HEAD screws on the side (two either side). Disconnect the two pin speaker lead/connector from the bottom I.F. PCB (located adjacent to the external speaker socket). STEP 3 Remove the foil from the VHF converter making sure none remains which could cause a short circuit. Fit the VHF converter...
    Page 3 LEAD C Connect lead “C” (short grey screened lead) between the vacant 2 pin connector of the VCO PCB (see diagram) and J3 of the VHF converter. LEAD E Connect lead “E” (4 wire purple/white) between the vacant 4 pin connector of the RF PCB (see diagram) and J5 of the VHF converter. LEAD B Connect lead “B” (Long grey screened lead with 2 pin connectors) between the vacant 2 pin connector of the RF PCB (see diagram) and J4 of the VHF converter. LEAD A Connect lead “A” (coaxial cable with one end...
    Page 4 Alternatively remove the insulation from the wire feeding Pin 1 then solder to the wire the flying lead from the converter and apply insulating tape to protect the connection. STEP 4 Connect power & a speaker to the receiver, power it up and test. Sensitivity should be far better than 1uV (-107dBm) for 10dB S/N on AM and 12dB SINAD on NFM. Airband converter: Guaranteed frequency coverage is 108 - 146 MHz (airband & 2m HAM bands). Marine converter (general): Guaranteed coverage 146 - 165 MHz but likely...
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