Operating instructions

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RF Technology R800 Page 18
7.4.11 Modulation Acceptance BW 7 SPECIFICATIONS
7.4.11 Modulation Acceptance BW
25KHz spacing - 7.5KHz per EIA-603
12.5KHz spacing - 3.75KHz per EIA-603
7.4.12 Noise Squelch
Adjustment Range 6-26dB SINAD, 25KHz Versions
6-18dB SINAD, 12.5KHz Versions
Attack Time 20mSec. above 20dB Quieting
Release Time 150mSec. at 20dB quieting decreasing to 20mSec. above 2uV present
threshold
Hysteresis Hysteresis is equal to approximately 2dB change in noise quieting.
7.4.13 Carrier Level Squelch
Carrier level squelch can be used when it is necessary to set the opening point above 26dB
SINAD as may be required in link applications. The minimum adjustment range is 1 to
200uV.
7.4.14 Receiver Frequency Spread
Less than 1dB change in sensitivity over 10MHz
7.4.15 Receiver Conducted Spurious Emissions
Less than -57dBm from 1 to 2900MHz
7.4.15.1 Audio Frequency Response
600 Ohm Line and Direct Output: +1/-3dB 300-3000Hz relative to either a flat
response or 750uSec. de-emphasis with the
high pass and notch filters bypassed.
Sub Audio Output: +1/-3dB 67-250Hz
7.4.15.2 Audio Output Level
600 Ohm Line: Adjustable -10 to +10dBm
Monitor Loudspeaker: 5watts with external speaker. 0.3watt with internal
speaker.