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4) When disconnecting the power to the Active Receive Horizontal antenna, there should be very
little or no signal. In other words, verify that powering the Active Receive Vertical antenna
results in improved signal level and signal-to-noise enhancement, without a large increase in
noise. If there is almost the same amount of signal without and with power, there are two
possible issues:
a) Proper operating voltage is not arriving at the Active Receive Horizontal antenna, or;
b) If you seem to have a high amount of common mode signal or noise arriving on the
shield of the Active Receive Horizontal antenna feedline that is running on or above
ground or similar noise as your transmit antenna, for some installations the
DXE-
RFCC-1
Receive Feedline Current Choke may help. The use of the
DXE-RFCC-1
Receive Feedline Current Choke will remove common mode signal and noise collected
by the shield of the feedline in order to realize normal signal-to-noise improvements
available from an Active Receive Horizontal antenna.
Given that all connections are good, voltage at the
AVA2
is good and that the other tests indicate
everything is normal, it is likely the signal level you are receiving is normal.
In most circumstances, the
DXE-ARAH3-1P
Active Receive Horizontal antenna used singly, or in
two and four antenna arrays, offers low level low band signals that have significantly improved
signal-to-noise. It is sometimes necessary to enhance these results to listening levels by using the
DXE-RPA-1
Receive Pre-Amplifier in line, without losing the signal-to-noise benefits of the no-
gain Active Receive Horizontal antenna. Only the
DXE-RPA-1
Receive Pre-Amplifier operates
with a third order intercept and dynamic range that is far superior to most receiver front-ends.
