Olson Technology OTR-3550-DC - Manual (Page 2)

025-000187 REV B Page 2
OTR-3550-DC
FREQUENCY AGILE - F.C.C. COMPATIBLE
TELEVISION PROCESSOR
1) INTRODUCTION
The Olson Technology OTR-3550-DC is a frequency agile television processor which consists of an agile
demodulator internally connected to an agile modulator. This unit will select any broadcast VHF/UHF or cable
input channel from 49.75 MHz to 855.25 MHz, and will provide a high level (+60dBmV typical) output on any
channel from 49.75 MHz (channel DS-1) through 543.25 MHz (channel SD-22). All input and output chan-
nels are selectable in .25 MHz increments by front panel DIP switches.
The OTR-3550-DC uses dual SAW filtering for 60dB adjacent channel rejection and has high level spurious
free output. This unit also offers the unique Olson Technology feature of >80dB out-of-band carrier to noise
ratio, which will allow virtually unlimited numbers of the OTR-3550-DC to be combined without the need for
external band pass filters.
The OTR-3550-DC has low power consumption (17 watts @ 220 VAC) for economical and reliable long
term operation.
2) INPUT CHANNEL SELECTION - DEMODULATOR
Remove the front panel plate marked “Input Channel Select” to expose the channel select and band select
DIP switches as shown in Figure 1.
FIGURE 1 - INPUT CHANNEL SELECT DIP SWITCHES
A) CHANNEL SELECTION - Channel selection is accomplished by properly setting the 12-position
DIP switch to the correct code for the desired channel. Switch codes can be selected from Table 4 at
the rear of this manual. Set the DIP switches from left to right as shown in the table. For example, if
channel DS-1 is selected, its corresponding switch code is:
CAUTION: The switch codes for input and output channel selection are completely different. Be sure to refer to
the correct table and set the switches carefully.