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PROBLEM: AC hum in receiver audio
SOLUTION: AC hum is one of the most difficult problems to isolate. Verify that your
audio inputs do not have any hum present by unplugging the XLR inputs from the trans-
mitter and check with a monitor speaker, scope, etc. If there is hum, follow standard
balanced audio cabling and grounding techniques. Possibly use an isolation trans-
former, or an XLR ground pin remover. If the audio input is clean, check for RF transmit-
ters close to audio inputs of your transmitter or studio source. Also be aware that a re-
ceiver located close to the transmitter may be overloaded and could appear as audio
hum or distortion. Verify with a receiver in the field.
PROBLEM: PX50 didn't save my changes.
SOLUTION: When you are in a screen editing a value you are in a scratch pad mode.
In order to save these settings to non-volatile memory, flip to a different screen to have
the values saved.
PROBLEM: I have bad antenna system VSWR.
SOLUTION: The antenna system is the most important part of a radio station. The an-
tenna must be properly tuned to your operating frequency, and feed line and connec-
tors must be properly configured. If your transmitter is reporting bad VSWR, check an-
tenna connectors, check cable for damage, and check antennas for damage, ice, and
other physical obstructions or damage. You can verify your antenna system defect by
connecting a dummy load to the transmitter and verify that the VSWR problem is no
longer reported.
PROBLEM: Other problems
SOLUTION: Contact Ramsey Technical Support.
Your Notes:
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