User manual

RF Technology WinTekHelp User Manual Page 14
WinTekHelp User Manual
“Battery Low” is generated if the exciter battery level is low.
“RF Output Stage Failure” is asserted if, for some reason, bias is applied to the Exciter’s pre-amplifier,
and there is less than 20mW output power.
“PLL Tuning Volts Not OK” is asserted if either, or both, of the bias voltages in the two VCO circuits is
out of range.
“Channel Not Programmed” is asserted if there is no channel data associated with the current channel
number.
“Frequency Out of Range” is asserted if the frequency assigned to the current channel is out of the range
of frequencies supported by the attached Power Amplifier.
“Lock Failure” is asserted if either VCO is unable to achieve lock when the Exciter keys up.
“PA No Comms” is asserted if the Exciter is unable to communicate with the Power Amplifier.
“PA Bad” is an alarm that indicates an undefined fault with the Power Amplifier (ie some fault other
than any of the following faults).
“PA Battery Low” indicates that the Battery Level at the Power Amplifier is low.
“PA Drain Current” is asserted if either the Pre-Amp or the Output Stage Drain currents are too high.
“PA Over Temp” is asserted if the PA Temperature is too high.
“PA Temp Limit” is asserted if the Output Power of the External Power Amplifier has been reduced in
order to prevent the PA Temperature from exceeding its temperature limit.
“PA Rev Pwr”
Is asserted if the Reverse Power exceeds the threshold defined for the PA.
“PA Rev Pwr Ratio” is asserted if the Output Power of the External Power Amplifier has been reduced,
in order to keep the Reverse Power limit from being exceeded.
“PA Under Fwd Pwr” is asserted if the power output from the PA falls below the low power alarm level.
Fig. 7