The 700 receiver system is a design uncompromised for quality or performance.
The 3.5" frame contains power and microcomputer electronics that control and monitor operation of one or two receiver modules and the LNB. Primary power is normally 117 vac with 240 volt units available. Rack mounting is optional.
Input signal to the receiver is L band at 950-1450 MHz and is usually supplied by an LNB with + or - 15 kHz stability.
Frequencies of the C or KU band satellite and the SCPC frequency are entered through a keypad and are displayed on the top line of the back lit alphanumeric readout. The bottom line of the readout gives the results of the fault-monitoring duties of the processor. We noted the keypad and readout were awkward to use in a straight vertical position, so we slanted the front panel.
The audio meters are back lit with LED's. The light is red if the channel is in a signal failure (squelch) mode and green in normal or squelch defeat operation.
Squelch of the output audio signal is provided by circuits that listen for high noise levels. The squelch may be defeated with front panel switches located next to the audio meters.
A "relative" RF signal meter monitors amplitude of the carrier at the demodulator of the first audio channel. The position of the meter needle may be set with the adjustment next to the meter. Any variation from this setting is the result of the strength of the receive signal. Therefore, it may be used for peaking the dish and day to day monitoring of system stability.
Standard receiver models are available for 15 or 7.5 kHz audio signals with others available on special order. Baby boards on the receiver modules contain audio process/companding circuits for the particular system. Deemphasis time is selected with jumpers. Both balanced and unbalanced output connectors are provided on the rear panel.
A 70 MHz output loop is available to supply a signal to expansion units or external demodulators.
