System Description Chapter 2
4-6 kW UHF Translator Chapter 2, System Description
837B, Rev. 0 2-6
2.2.1 (A1) UHF Exciter Tray (1142458; Appendix C)
Table 2-3. UHF Exciter Tray Meters
METER FUNCTION
This meter reads power in terms of a percentage of the
calibrated output power level on the upper scale. The
voltage level or frequency level is read on one of the bottom
two scales. A full-scale reading on the top scale is 120%.
The meter also reads % Aural Power, % Exciter Power,
% Reflected Power, audio levels, video levels and the
ALC voltage.
With Switch S3 in
Position
Display
Switch S3, Meter
Selects the desired ALC voltage
reading, % Exciter Power, %
Reflected Power, % Visual
Power, % Aural Power, video
level, or audio level
Audio
(0 to 100 kHz)
Reads the audio level, ±25 kHz
balanced or ±75 kH composite,
on the 0 to 10 scale. Will
indicate baseband audio, if it is
connected to the Translator,
even with the video +4.5-MHz
SCA input selected.
ALC
(0 to 10 volts)
Reads the ALC voltage level, .8
VDC, on the 0 to 10 scale (full
scale=1 volt)
% Exciter
(0 to 100)
Reads the % Exciter Output
Power Level needed to attain
100% output of the Translator
on the top scale
% Aural Power
(0 to 100)
Reads the % Aural Output
Power of the Translator,
100%= watts for 10 dB
A/V ratio, on the top scale
% Visual Power
(0 to 100)
Reads the % Visual Output
Power of the Translator,
100%= watts peak of
sync, on the top scale
% Reflected
(0 to 100)
Reads the % Reflected Output
Power, <5%, on the top scale
Meter (A1-A18)
Video
(0 to 100 IRE)
Reads the video level, 1 volt
at peak white, on the 0 to 10
scale