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KEY OWNER/USER BENEFITS
Small size occupies minimal rack space Easy digital tuning combined with a single crystal frequency
synthesizer result in elimination of the need to zero-beat tune the ADF receiver Quadrantal error correction, usually requiring an additional
system component, is performed in the ADF-60A receiver Integrated sense and loop antennas result in a single unit
similar in size to a conventional loop antenna Single-unit antenna and only one coaxial cable (length not
critical) make installation easy Automatic band switching results in ease of frequency selection
over entire 190.0-1749.5 kHz frequency
range Detector techniques optimize bearing performance under weak-signal
and high-noise conditions Single self test provides functional checks Modular construction facilitates quick access to all circuits
for easy maintenance
OVERVIEW
The Collins Automatic Direction Finder ADF-60A combines Pro Line performance
and compactness. Simplified installation, compatibility with existing radio
magnetic indicators and easier operation make the ADF-60A the best choice
for updating ADF capability.
DESCRIPTION
With the ADF-60A only one coaxial cable is required between the ANT-60A
integrated loop/sense antenna and the receiver. While the ADF-60A cable length
is not critical, other systems require special cable lengths for proper matching.
This is taken care of in the ADF-60A with a solid-state RF amplifier built
into the antenna. Quadrantal error correction that usually requires an additional
system component is accomplished in the ADF-60A receiver by proper connection
of programming pins in the mating connector. Other features that make the
ADF-60A an advanced ADF design include a stable, single-crystal frequency
synthesizer, crystal filter rejection of adjacent frequencies, dual-conversion
IF and coherent phase detection to minimize bearing errors. Put in an operational situation, all these features contribute to superior
ADF performance. Tuning is in 0.5 kHz steps,
and a capture range of ±0.25 kHz enables full coverage so that the
ADF-60A can pick up stations even if they are not precisely on the assigned
frequencies. When used with a CAD-62, the ADF-60A can be controlled with
a Pro Line II CTL-62. The ADF-60A takes the guesswork out of ADF. The coherent detector determines
whether a weak signal is reliable for navigation. When the signal is below
a usable level, the coherent detector causes the bearing pointer to swing
to a horizontal parked position. Any audio output is silenced to further verify
the unreliable signal condition. Tone identification of an unmodulated carrier signal is another improvement
over standard ADFs with beat frequency oscillators. When pilots select a frequency
and activates the 1,000 Hz tone, they
immediately know whether they are receiving an unmodulated carrier. The ADF-60A receiver has conventional three-wire AC synchro outputs
for standard RMIs. In addition to eliminating all electromechanical components,
the ADF-60A receiver design features modular construction. All components
are fully accessible for bench service without the use of extender cables. An optional dual element antenna, the ANT-60B, is also available to
even further simplify the installation of dual ADF-60A systems. This antenna
combines both loop and sense functions for two ADF-60A systems within one
housing. If desired, the ANT-60B can also be used with single ADF-60A installations.
TYPICAL SYSTEM
ADF-60A | 1 | Receiver, ADF | 622-2362-001 | ANT-60A | 1 | Antenna, ADF | 622-2363-001 | CTL-62G | 1 | Control, ADF | 822-2180-007 | CAD-62 | 1 | Control, Adapter | 622-6590-002 |
ADF-60A | 2 | Receiver, ADF | 622-2362-001 | ANT-60B | 1 | Antenna, ADF | 622-3710-001 | CTL-62G | 2 | Control, ADF | 822-2180-007 | CAD-62 | 2 | Control, Adapter | 622-6590-002 | Note(s): | See Installation Hardware
table for mounts and connectors |
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SPECIFICATIONS
FAA TSO | C41c (Class A) | | | Environmental | DO-138 /AD/A/  /AAA XXXXXX Class
A selectivity | DO-138 /AJ/B/JN/ AAAXWXXXX | DO-138 /AJ/B/JN/
AAAXWXXXX |
Size | 3/8 ATR, short, dwarf | | | Height | 85.4 mm (3.32 in) | 43 mm (1.7 in)
at center | 27 mm (1.1 in)
at center | Width | 96.6
mm (3.80 in) | 216
mm (8.5 in) | 269 mm (10.6 in) | Length | 354.5 mm (13.96
in) | 419 mm (16.5 in) | 603 mm (23.81 in) | Weight | 1.9
kg (4.2 lb) | 1.4
kg (3.1 lb) | 2.3 kg (5.1 lb) |
Temperature | | | | | | Continuous | -54
to + 55°C | -65
to + 71°C | -65
to + 71°C | Operation | | | | | |
Short-time Operation (30 min max) | -54
to + 71°C | | | Altitude | 60,000
ft | 60,000 ft | 60,000 ft |
Power | 28
V DC 0.6 A, including ANT | Powered by ADF-60A | Powered by ADF-60A |
Control | ARINC 2-out-of-5 or CSDB with use of
a CAD-62 adapter unit | Range | 190.0
to 1749.5 kHz | Tuning Increments | 0.5
Hz | Capture
Range | ±250 Hz typical |
Intermediate
Frequencies | First
IF | 15 MHz | Second
IF | 3.6 MHz | Bandwidth | 6 dB - 2.8 kHz (nom) 80 dB - not more than 14 kHz | Sensitivity | Modulated 30% at 400 Hz | ANT | 70 microamps
V/m max at 6 dB (s+n)/n | ADF | 100 microamps
V/m max at 6 dB (s+n)/n | ADF
Accuracy | ±3° over
the operating temperature range, with input signals of 70 microamps
V/m to 0.5 microamps V/m driving
two ARINC standard ADF indicators | Spurious Response | At least 80
dB below desired response | Audio
Gain | 100 mW (nominal) into 600
ohms load with a 1000 microamps V/m input
signal, 30% modulation at 400 Hz | CW Identifier | 1000
Hz tone | Output
Loading | | DC
sin/cos | 8
V DC max output, 5 kilohms min | Synchro
Bearing Output | Capable
of driving up to five loads Additional loads may be driven with
the following increase in bearing error: three loads, 0.3°;
four loads, 0.7°; five loads, 1.2° |
SELECTION GUIDE
ADF-60A | X | | | X | X | 622-2362-001 |
ANT-60A | X | | 622-2363-001 | ANT-60B | | X | 622-3710-001 |
CTL-62 | X | | X | X | | | | 622-6522-001 | | | | X | X | X | | | | 622-6522-002 | | | X | | X | | X | | | 622-6522-003 | | | | X | X | | X | | | 622-6522-004 | | | X | | X | X | | X | | 622-6522-005 | | | | X | X | X | | X | | 622-6522-006 | | | X | | X | | X | X | | 622-6522-007 | | | | X | X | | X | X | | 622-6522-008 | CTL-62 | X | | X | X | | | X | 622-6522-009 | | | | X | X | X | | | X | 622-6522-010 | | | X | | X | | X | | X | 622-6522-011 | | | | X | X | | X | | X | 622-6522-012 | | | X | | X | X | | X | X | 622-6522-013 | | | | X | X | X | | X | X | 622-6522-014 | | | X | | X | | X | X | X | 622-6522-015 | | | | X | X | | X | X | X | 622-6522-016 | Note(s): | All
controls listed above have power on-off capability |
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CAD-62 | Control Adapter | 622-6590-002 | Note(s): | One CAD-62 is required for tuning each ADF-60A with a CTL-62 |
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| | Gasket, contoured, for mounting
ANT-60A on curved fuselage, 32-inch radius
of curvature | 629-7897-001 | | | Gasket,
contoured, for mounting ANT-60A on curved fuselage, 47-inch radius
of curvature | 629-7897-002 | | | Gasket, contoured, for mounting
ANT-60A on curved fuselage, 62-inch radius
of curvature | 629-7897-003 | | | Gasket,
contoured, for mounting ANT-60A on curved fuselage, 38-inch radius
of curvature | 629-7897-004 |
INSTALLATION HARDWARE
Application | | | | | | | | | | Fixed
Wing | X | X | X | X | | | | | | Helicopter | | | | | X | X | | | Type | Qty | Qty | Qty | Qty | Qty | Qty | Notes | Part Number | Mount | | | | | | | 1 | | UMT-12 | 1 | 1 | | | | | | 622-5212-001 | UMT-12 | | | | | 1 | | | 622-5212-003 | 360R-19 | | | 1 | 1 | | 1 | | 622-1195-301 | Connector
kit | | | | | | | | | | | With
(std) contacts | 1 | | | | | | 2, 3 | 634-4192-016 | | | | | | | | | | 2, 4 | 634-4193-011 | | | Without
contacts | | 1 | | | | | | 634-1022-001 | | | | | | | 1 | | | | 634-1899-001 | | | | | | | | 1 | 1 | | 634-1899-003 | Conn
(std) contacts | | 43 | | 43 | 43 | 43 | 5 | 372-2514-110 | Coax insert | | 1 | | 1 | 1 | 1 | | 372-2519-040 | Insulator | | 2 | | 2 | 2 | 2 | | 304-0880-000 | Ferrule | | 2 | | 2 | 2 | 2 | | 304-0608-000 | Note(s): | The UMT-series is the preferred mount Includes standard contacts (CPN 372-2514-110) for use with
wire having an insulation O.D. of 0.050 in max Option A consists of all option B items in a single kit Option C consists of all option D items in a single kit Standard contacts (CPN 372-2514-110) are for use with wire
having an insulation O.D. of 0.050 in max Optional contacts (CPN 372-2514-180) are available for use with wire
having an insulation O.D. of 0.050 to 0.080 in
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| | 1 | Connector, mating | 357-7998-010 |
| | 1 | Connector, mating | 371-6470-000 |
| | 1 | Connector, mating, crimp | 359-0305-580 | | | or | | | | | 1 | Connector, mating, solder | 371-6109-000 | | | A/R | Plate, Dzus, 2.984"
H, dual cutout, black | 634-3569-001 | | | A/R | Plate, Dzus, 2.984"
H, dual cutout, gray | 634-3569-002 | | | A/R | Plate, Dzus, 2.984"
H, single cutout, black | 653-2971-001 | | | A/R | Plate, Dzus, 2.984" H, single
cutout, gray | 653-2971-002 | | | A/R | Plate, Dzus, 3.360"
H, single cutout, black | 653-2972-001 | | | A/R | Plate, Dzus, 3.360"
H, single cutout, gray | 653-2972-002 | | | A/R | Plate, Dzus, 3.360"
H, dual cutout, black | 653-2973-001 | | | A/R | Plate, Dzus, 3.360"
H, dual cutout, gray | 653-2973-002 |
| | 1 | Connector kit | 653-9014-002 | | | 1 | Mount | 653-9015-001 |
Piggyback
adapt kits w/conn cover 3/8 ATR over 3/8 ATR | 1 | 634-1104-003 | | 621-9054-002 | | | | 2 | 621-9054-005 | Piggyback
adapt kits w/o conn cover 3/8 ATR over 3/8 ATR | 1 | 634-1103-003 | | 618-5281-001 | | | | 2 | 618-5281-002 | Connector cover kits
3/8 ATR cover kit | | 621-8533-002 | | 621-8533-002 | | | 3 | 634-4204-002 | 3 | 634-4204-002 | Note(s): | Piggyback adapters used with UMT-series mounts are suitable
for both fixed-wing and helicopters Special for high-vibration helicopter environments Special for helicopter installations using the optional floating
connector plates
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