20
9) Test reception of each Active Vertical Antenna by connecting each antenna feedline, one at a
time, to an activated port on the
RFS-3
. This assumes that a good port has been identified and
is functioning properly. Normal reception must be confirmed from each antenna. If any antenna
is not providing the proper RF signal level, move the AVA unit to a known good feedline
position to rule out the possibility that a bad feedline is attenuating the RF. If one or more
Active Receive Verticals produce a low or no signal, then the AVA unit at the base of that
antenna may not be receiving power. Retest for DC power at the antenna end of that feedline. If
+ 10 to 18 Vdc is found, then the Active unit may need to be serviced or replaced. New
DXE-
AVA-2
units are available separately by calling DX Engineering.
10) If all Active Verticals tested provide the same signal level, then change switching voltages to
activate the other ports, one at a time, and test each
RFS
unit port, using one of the good
antennas, testing for the same level of reception. If one or more ports is dead or has diminished
reception, there may be a problem in a delay line or in the
RFS
unit.
11) Using tested or replaced delay lines and connectors, if one or more ports is dead or has
diminished reception, the
RFS
unit may require service or replacement.
At this point, the problem in your system should have been identified.
If you need additional assistance from DX Engineering, feel free to call or write. Detailed
discussions of system function, connections, and troubleshooting is best handled by telephone,
Monday through Friday, 8:30 am to 4:30 pm Eastern Time, at 330-572-3200.
