User's Manual
1 1 7 B 2 0 W a t t VHF High Band Transla t or Syst e m Descript ion
The 117B is a 20 Wat t High Band VHF Television Translat or which operat es at a nom inal I nt ernally
Diplexed output power of 20 Watt s Peak Sync Visual with typically 2 Watt s Aural at a - 10 dB
Aural/ Visual Rat io.
Funct ionally, it is com prised of a VHF Low Band Receiver Tray (1265-1100) and a 20 Watt VHF
High Band Upconvert er/ Am plifier Tray { 1355- 1010 ( Low Band) , 1355-1011 ( Mid Band) or 1355- 1012
( High Band) } .
The Receiver Tray receives t he Low Band VHF Channel I nput at Jack ( J1) and convert s it t o an
I nternally Diplexed Visual + Aural I F Out put ( + 0 dBm ) at J4. The Visual + Aural I F output of the
Receiver Tray at J4 is fed to J2 t he I F I nput Jack for t he 20 Wat t VHF High Band
Upconverter/ Am plifier Tray. The Upconvert er Sect ion of the Tray m ixes the I F wit h an int ernally
generat ed L.O. t o produce t he VHF High Band Channel Frequency Output . The signal is am plified
and filtered in t he Am plifier Sect ion and direct ed t o J4 t he RF Out put of t he Tray. This output
connect s t o t he Ant enna for your Syst em .
Jack J7 located on t he back of the Upconvert er/ Am plifier Tray is a 37 Position "D" Rem ote I nt erface
Connect or which provides t he Operat or with a connect ion for Rem ote Monitoring and Operat ion of
the Translator.
This m anual provides the Technical Specifications of t he Translator, along wit h the Circuit
Description, Alignm ent Procedure and the Schem atics, Block Diagram s, I nt erconnect s and
Replacem ent Parts List s necessary for t he proper operat ion and m aint enance of the 117B.