Watkins-Johnson Company WJ-8711A, Installation, Operation And Maintenance Manual

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WJ-8711A DIGITAL HF RECEIVER GENERAL DESCRIPTION
1-5
Table 1-1. WJ-8711A Digital HF Receiver Specifications (Continued)
Line Audio Outputs
Number of Outputs .................................... Two center-tapped, balanced outputs. For ISB mode,
USB and LSB on separate outputs. For all other modes,
audio signal is common to both outputs.
Output Level .............................................. 0 dBm nominal into 600 ohm load
Connector Type ......................................... Screw Terminals
Speaker Output
Number of Outputs .................................... One output. For ISB mode, USB and LSB can be
selected individually or combined. (Internal Speaker
optional)
Bandwidth.................................................. 100 Hz to 13 kHz
Output Level .............................................. Adjustable up to 2 Vrms into 8 ohm load
Total Harmonic Distortion ........................ Less than 3%
Connector Type ......................................... Screw terminals
Headphone Output
Number of Outputs .................................... Two unbalanced outputs. For ISB mode, one output
contains USB (left channel), the other contains LSB
(right channel). In all other modes, the audio signal is
common to both outputs
Output Level .............................................. Adjustable up to 10 mW into 600 ohm load
Connector Type ......................................... Standard 1/4" stereo jack
Remote Control ................................................... RS-232C
RS-232 ....................................................... Full duplex, 3-wire serial interface; rear panel 25-pin
female D-shell connector
Baud Rates................................................. 75, 150, 300, 600, 1200, 2400, 4800 and 9600; selectable
by internal switches.
Operating Temperature........................................ 0
°
C to +50
°
C
Storage Temperature ........................................... -40
°
C to +70
°
C
Humidity.............................................................. 10 Cyclic days (240 Hrs.) Procedure III for Continuous
Exposure to 95% RH.
Altitude................................................................ 50,000 ft. non-operating
24,000 ft. operating
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