XR12 Transmitter Pre-installation Manual
Control and monitoring
Issue 0.17 2005-08-31
Page 6-9
RF monitor sample.
A true sample of the RF output voltage waveform is availablethrough the J8
BNC connector (RF MONITOR) on the remote interface board. The RF monitor output is intended
to be applied to a station modulation monitor with a 50 ohm input impedance. It may also be
monitored by an oscilloscope during maintenance procedures. The RF monitor output can be set to
provide 1.0 V RMS for each preset power level, provided they are preset to a level that is between 1
kW and 12 kW.
The RMS output level is adjusted from the GUI. Setting the level higher than 1 Vrms (carrier) will
cause distortion in the wafevorm and may prevent accurate measurement of modulation depth.
Note: Some older modulation monitors may not accept a 1 V input.
Summary of Contents for XR12
Page 6: ...XR12 Transmitter Pre installation Manual Page iv Issue 0 17 2005 08 31 ...
Page 14: ...XR12 Transmitter Pre installation Manual Description Page 1 4 Issue 0 17 2005 08 31 ...
Page 54: ...XR12 Transmitter Pre installation Manual Parts and tools Page 9 4 Issue 0 17 2005 08 31 ...
Page 68: ...XR12 Transmitter Pre installation Manual List of terms Page 12 2 Issue 0 17 2005 08 31 ...
Page 74: ...XR12 Transmitter Index Page 13 6 Issue 0 17 2005 08 31 ...
Page 75: ......