User's Manual

Digital UHF Transmitter Appendix B, Typical Operational Readings
DT835A, Rev. 1 B-1
(A1) Single UHF Exciter Assembly
(A1-A6) DT835A Metering Panel
Combined
Forward (0 - 120%) =
≈
100 %
Reject (0 - 120%) = <5% Reflected (0 - 120%) = <5%
(A2) Amplifier Array Side A
Forward (0 - 120%) = The level as needed
to attain the desired output power of the
transmitter
Reflected (0 - 120%) = <5%
(A3) Amplifier Array Side B
Forward (0 - 120%) = The level as needed
to attain the desired output power of the
transmitter
Reflected (0 - 120%) = <5%
(A1-A1) UHF Exciter Tray
% Exciter (0 - 120%) =
≈
70 % ALC (0 - 1 V) =
≈
0.8 V
(100%=+10 dBm 64 QAM or 8-VSB digital
(A1-A4) Phase/Gain Tray Side A
% Power (0 - 120%) =
≈
50% ALC (0 - 1 V) = 0.6 - 1 V typical
(A1-A5) Phase/Gain Tray Side B
% Power (0 - 120%) =
≈
50% ALC (0 - 1 V) = 0.6-1 V typical