Defeating 12 vdc bias on UR4 receiver antenna inputs

Defeating 12 vdc bias on UR4 receiver antenna inputs

Date Updated: February 2, 2012 FAQ #3231
Question:
How do I remove the 12 vdc bias on the UR4 receiver antenna inputs?
Answer:


  1. Disconnect the UR4 receiver from its AC power source.


  2. Remove the top panel of the UR4 receiver.


  3. Move the two "ANT PWR" jumpers to the "off" position. These jumpers are near the front of the UR4.


  4. Replace the top panel of the UR4 receiver.



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