GENERAL DESCRIPTION
WJ-8711A DIGITAL HF RECEIVER
1-6
Table 1-1. WJ-8711A Digital HF Receiver Specifications
(Continued)
Shock (1) ............................................................. Bench Handling (Field Service) 8 drops total onto a
horizontal hard wooden surface - operating.
MTBF .................................................................. In excess of 14,000 hrs. Estimated in accordance with
MIL-HDBK 217E for Ground Fixed; +40
°
C
environment.
Power Requirements............................................ 90 to 264 VAC, 47 to 440 Hz
Power Consumption ............................................ 35 watts typical with options
Dimensions .......................................................... 5.25 x 19.0 x 16.0 inches (excluding connectors and
controls)
Weight ................................................................. Less than 12 pounds
1.2
MECHANICAL CHARACTERISTICS
The WJ-8711A is designed in a full 19-inch rack configuration, occupying 5.25 of vertical rack
space and extending 16 inches into the equipment rack. Front panel mounting brackets are provided for
installation with the equipment rack. A #10 threaded grounding stud is located on the rear panel for grounding
the receiver in the rack. See
paragraph 2.2.1
for rack mounting instructions.
All operation controls and indicators are located on the front panel. All input and output
connectors (except for the PHONES jack) are located on the rear panel. Connector types used are BNC,
multipin, mini-phones, 1/4-inch stereo headphones jack, and a 13 terminal audio terminal block.
The top and bottom covers and main chassis are constructed of aluminum. The top cover is
removable and held in place with 10 screws. Removal of the top cover provides access to all internal circuitry
including the following four major assemblies: the Type 797214-1 Digital Assembly, the Type 797006-1 RF
Assembly, the Type 841704 Power Supply Assembly, and the Type 797015-1 Front Panel Assembly.
Courtesy of http://BlackRadios.terryo.org
Summary of Contents for WJ-8711A
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