WJ-8611 DIGITAL VHF/UHF RECEIVER
1-4 GENERAL
DESCRIPTION
1.2 MECHANICAL CHARACTERISTICS
The WJ-8611 Digital VHF/UHF Receiver is a half-rack unit, measuring
8.25 inches (20.96 cm) wide, 5.25 inches (13.34 cm) high, and 18.0 inches
(45.72 cm) deep (excluding front and rear panel support bracket
clearance). Panel support brackets, slide attachment holes, and special
mounting hardware are provided with the unit for a side-by-side mounting
of two units into a standard 19-inch equipment frame. The complete unit
weighs less than 15 pounds (6.8 kg) and consumes less than 50 watts of
power. Refer to
Figure 2-1
for the critical dimensions diagram of the
WJ-8611 Digital VHF/UHF Receiver.
The front panel contains large, bright LED displays, providing a clear
indication of the receiver’s operating status. The displays consist of a
9-digit frequency window that displays the tuned frequency to 10 Hz
resolution. A separate parameter window provides the status of key
operating parameters. In addition, many of the operating keys contain
LEDs that reflect their functional status. The operating controls are
functionally grouped to provide straightforward, user-friendly operation.
A group of parameter control keys (directly below the parameter display),
a numeric keypad, and a 2-1/2 inch tuning wheel provide the means for
front panel control.
All input and output connectors, except for the front panel PHONES jack,
are located on the rear panel. An N-type connector is utilized for the RF
input. An SMA connector is provided for the 250-kHz IF output. All
other analog signal lines, except of the audio terminal bus, are BNC-type.
Three multi-pin connectors are utilized for the Digital IF Output, and the
IEEE-488, and RS-232 outputs. A 6-pin terminal bus provides the Line A
and Line B audio outputs.
The top and bottom covers and the main chassis are constructed of
aluminum. An aluminum deck separates the top and bottom sections of
the chassis and provide the mounting surface for the Digital Assembly,
Power Supply, and the RF Assembly. The top and bottom covers are
secured in place with 11 Phillips head screws. Removal of the top cover
provides access to the RF Assembly. Removal of the bottom cover
provides access to the Digital Assembly and the Switching Power Supply.
1.3 EQUIPMENT SUPPLIED
The equipment supplied with the WJ-8611 Digital VHF/UHF Receiver
consists an Intermediate Maintenance Manual and an accessory kit
consisting of:
1 Ea. Line Cord
1 Ea. Line Fuse, 1 Amp 3 AG Slow Blo
1 Ea. Support Bracket
1 Ea. Support Bracket, Center
1 Ea. Handle Assembly, Rear
1 Ea. Handle Assembly, Rear
Courtesy of http://BlackRadios.terryo.org
Summary of Contents for WJ-8611
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