Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
ITEM NAME: RADIO EQUIPMENT
TYPE: BL-1 thru BL-6
Reception: Pulse
RELATION TO SIMILAR EQUIPMENT
Pulse Length: 5 to 100 usec
IF. : 11 mc
The Models BL-1 thru BL-6 are basically similar,
Band-Pass: 4 mc
differing mainly in the components used.
Power Requirements: 100 to 230v, 50 to 60
The Models BL-1 thru -6 are similar to the Model BL,
cps, 1-ph, 350w
but the Model BL has a slightly higher frequency range.
Antenna Data
Type
TECHNICAL DESCRIPTION
NT-66ACF: Stovepipe, vertical array
of two half-wave radiators.
Frequency Range: 157 to 187 mc
NT-66ACG, NT-66AFJ: Rod with wheel
Peak Power Output: 1.5 kw
type ground plane.
Emission: Pulse
Impedance: 50 ohms
Pulse Data
Radiation: Nondirectional
Repetition Rate: 25 to 500 pps
Polarization: Vertical
Length
BL-1 thru -5: 10 usec
INSTALLATION CONSIDERATIONS
BL-6: 6.7 usec
Receiver Data
Related Equipment: BL-1 thru BL-6 are used
Type: Superheterodyne
with associated series Radar Equipments
Navy Model SA, SC, SK, SP, SM and CXAM.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
SHIPPING DATA
COMPONENTS
BOXES
OVERALL DIMENSIONS
UNIT WT.
(NR.)
(Inches)
(Pounds)
Radar Transmitter including:
1
25 x 26 x 34-1/2
342
Receiver
1
2-1/4 x 2-1/2 x 30-1/2
4
Duplexing Unit
1
3-1/2 x 8-1/2 x 48
21
Antenna NT-66ACF
1
16-1/2 x 16-1/2 x 77-1/2
106
Antenna NT-66ACG
1
4-3/4 x 21-1/2 x 24
8
Antenna NT-66AFJ
1
8-3/4 x 21-3/4 x 21-3/4
12
Set of Equipment Spares
1
11 x 18 x 23
80
EQUIPMENT SUPPLIED DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
BL-1
Radar Transmitter NT-52ABC
1
17-3/4 x 19 x 19-1/2
117
Receiver NT-46AAZ
1
9-7/8 x 15 x 19-1/2
59
1
1-1/2 x 5-3/4 x 18-3/4
2.4
Duplexing Unit NT-50ABS or NT-50ABS-1
1
3 x 8 x 47-1/2
20
Antenna NT-66ACF or
i
12 x 12 x 12
52
NT-66ACG or
19 x 19 x 20-3/8
5
NT-66AF3
19 x 20 x 20
8
Ventilating Panel NT-10185
1
4-1/4 x 19-1/4 x 27-1/4
BL-1: 2
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