sunair ASB-100A User manual

sunair e ectronics, inc.
3181 S.W. Tbird Avenue, Fort Leilderdale, Florida 33315-3389, U.S.A.
OPERATION AND
MAINTENANCE MANUAL
SSB TRANSCEIVER
6th EDITION, 1 JANUARY, 1982
MANU AL PART NUMBER 0993980007
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TRAINING PROGRAMS
Sunair offers Training Programs of varying lengths to cover operation, service,
and maintenance.bf
al1 Sunair manufacturedequipment. Uptoeight technicians
can be accomodated in these programs.
For more information, contact:
ProductSupportITraining Director
Sunair Electronics, Inc.
3101
S. W. Third Avenue
Fort Lauderdale, Florida 3331
5 USA
Telephone: [phone]
Telex: 51 -4443
Cable: Sunair FIL-
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IN CASE OF DIFFICULTY
If your Sunair Electronics, Inc. equi pment, develops a malfunction,
please follow the steps out1ined below to expedite your equipment
repair.
1. Note al1 of the symtoms of the problem, i.e, when does it occur;
how often;
which modes of operation work, which do not; and
anything else which might assist in problem solving.
2. Note mode1 number and serial number.
3. When and from whom (dealer, representat i ve or f actory) equipment
was acquired.
4. Note peripheral equipment being used in conjunction with the
Sunair equipment. 1s the peripheral equipment working properly?
After determining the answers
to the above, contact your dealer or
representative and discuss
the problem with him, he may be able to
fix the problem locally, avoiding shipping delays. If it becomes
necessary to return the equipment to the factory, please follow the
procedures outlined in Section
II of this manual.
The document reference is online, please check the correspondence between the online documentation and the printed version.

The document reference is online, please check the correspondence between the online documentation and the printed version.

1 SUNAIR ASB-100A
Section Page Section Page
1 GENERAL INFOKMA'flON ............. 1-1
..................
1.1 System Description 1-1
....................... .
1.2 Specifications I I
1.3 Equipment Supplied ................. 1-2
1.4 Equipment Required Rut Not
Supplied
........................... 1..2
....
1.5 Optional Equipment (Not Supplied) 1-3
.........................
1.6 Description 1-3
1.6.1 SCU-l0 Control Unit .......... 1-3
......
1.6.2 KE-1000 Recciver/Exciter 1-3
1.6.3 PA-IOIOA Power Amplifier/
................. Power Supply 1-3
...................
1.6.4 Accessories 1-4
...................... 1.6.5 Options 1-4
........................
11 INSTALLATION 2-1
............................
2.1 General 2-1
..........................
2.2 Unpacking 2-1
.........................
2.3 Reshipping 2-1
2.4 Installation
Considerations and Mounting
........................ Information 2-1
2.4.1 Type and Location of Antenna to
................... be Installed 2-2
2.4.2 Factors to Consider before
Installation
of a Fixed Antenna .. 2-2
2.4.3 Installation of SCU-I0 Control
......................... IJnit 2-2
2.4.4 Installation of RE-1000 and
....................
PA-1010A 2-2
2.4.5 Static
Dischargers ............. 2-2
.................. 2.4.6 Microphone 2-9
............................
2.5 Cabling 2-9
2.6 Checks and Adjustments after
......................... Installation 2-9
................... 2.6.1 Channeling 2-9
........
2.6.2 Transmitter Output-AM 2-9
2.6.3 Transmitter Output-SSB
........ 2-9
..................... 2.6.4 Sidetonc 2-9
2.6.5 Antenna Coupler
............. 2-10
....................
2.6.6 RFGain 2-10
..............
2.6.7 Volume Control 2-10
.....................
2.6.8 Clarificr 2-10
2.6.9 Aircraft Power-Up ............ 2-10
..............
111 THEORY OF OPEKATION 3-1
.............................
3.1 Gcncral 3-1
................... 3.2 ASB-100A System 3-1
3.3 Excitcr
............................. 3-1
..........
3.3.1 Mike Amplifier, ZlOO 3-1
......
3.3.2 Ralanccd Modulator, 2200 3-1
.......
3.3.3 Carrier Oscillator, Z500A 3-3
3.3.4 Amplifier, 2200
............... 3-3
........................ 3.3.5 Filter 3-3
3.3.6 Emittcr Follower and ALC,
2800
......................... 3-3
.........
3.3.7 Compatible AM Mode 3-3
3 3.8 1650
kHz Amplifier and Emitter
Follower, 2300
................ 3-3
3 3.9 Balanced Mixer, 2300
.......... 3-3
.............
3.3.10 Channcl Oscillator 3-4
.........
3.3.1 1 Tuned Amplifier, 2300 3-4
3.3.12 Emitter Follower Driver, 2300
. . 3-4
......
3 3.13 Wideband Amplifier, 2400 3-4
.......
3.4 Powcr Amplifier/Power Supply 3-4
..............
3.4.1 Amplifier Section 3-4
.................
3.4.2 Powcr Supply 3-5
3.5 Receiver
............................ 3-5
....................
3.5.1 SSB Mode 3-5
....................
3.5.2 AM Mode 3-7
..............
3.6 Controls and Indicators 3-9
..............
3.6.1 General Controls 3-9
3.6.2 Control Unit .................. 3-9
...........
3.6.3 Automatic Controls 3-10
1V ALIGNMENT PROCEDURES
............ 4.1
4.1 General
........................... -4-1
..................... 4.2 Test Equipment 4.1
4.3 Alignment of Receiver/ Exciter
........ 4-1
4.4 Alignment of Power Amplifier
......... 4-5
V MAINTENANCE AND TROUBLE-
.............................
SHOOTING 5-1
..............
5.1 Preventive Maintenance 5-1
................. 5.2 General Malfunction 5-1
................... 5.2.1 Power Loss 5-1
5.2.2 Relays, Connectors, and
Switchcs
..................... 5-1
.............
5.2.3 Effects of Damage 5-2
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TABLE OF CONTENTS (Continued)
Section Page Section Page
5.3
Trouble Locatioil and Testirig . . . ... . .. 5-2
VI INSTRUCTIONS FOR FREQtJENCV
5.4
Exciter.. . . ... .. . .. . .. . . . . . . . . . .. . .. 5-2
CHANGE ............................... 6-1
5.5
Receiver. .. . .. . .. ... .. .. .. . .. . .. . . . . 5-4
6.1
Method of Prequency Change . ... .. . . . 6-1
5.6 Power Amplifier] Power Supply
. . . .... 5-6
6.2 Replacing Components
. . . . . .... . .. .. . 6-1
5.7
Control Unit .. .. . . . . . . . . . . . . . . .. . . . . 5-8
6.3
Wiring for Compatible AM Mode . . . . . 6-1
6.4
Turiing Procedure . . . . ... . . . . . .. . . . . .6-1
VI1 SCHEMATIC DIAGRAMS AND PARTS
I.IST ................................... 7-1
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LlST OF ILLUSTRATIONS
Figure Page
Sunair ASB-100A SSB ~ommunica~ions
.............................. Equipment iv
Installation Dimensions. SCU-IO Control
Unit
.................................... 2-3
Installation Dimensions. PA-IOIOA
............ Power Amplifier/Power Supply 2-3
Installation Dimensions. RE-1000
......................... Receiverl Exciter 2-4
Interconnect Diagram. ASB-100A/ CU- 1 10
.................................. Systcm 2-5
MCU-30. ASB-100A. Control Head Schematic
................... and Mounting Diagram 2-6
Interconnect Diagram. ASB-100A/
...................
ACU-ISOA ( ) System 2-8
Block Diagram. Exciter and Power
Amplifier
............................... 3-2
..................
Block Diagram. Receiver 3-6
........
Example of Frequency Relationships 3-8
................ ReceiverjExciter. Top View 5-9
............ ReceiverlExciter. Bottom View 5-10
Power Amplifier/Power Supply.
.............................. Top View 5-1 1
Power Amplifier/Power Supply.
Front View ............................. 5-12
Figure Page
5.5 Power AmplifierlPower Supply.
........................... Bottom View 5-13
........... 5.6 Control Unit SCU.10. Top View 5-14
..................
5.7 Wafer Switch Diagrams 5-15
..................... 5.8 Channeling Diagram 5-16
...................... 5.9 ASB-100ATestSet 5-17
. ......................
5 IO Test Set Schematic 5-18
......... 5.11 Test Set Interconnection Diagram 5-19
.............. 7.1 PA-IOIOA PA/PS Schematic 7-4
7.2
RE- 1000 ReceivcrlExciter Schematic ........ 7-6
7.3 1000
Hz Tone Oscillator Schematic ........ 7-9
7.4 PCB ALC Amplifier, 2900
............... 7-10
....................... 7.5 PCB Power Supply 7-11
...............
7.6 PCB Mike Amplifier, ZlOO 7-12
7.7 PCB Balanced Modulator, 2200
........... 7-13
............... 7.8 PCB Exciter/Audio, Z300B 7-14
7.9 PCB Wideband Amp, 2400
............... 7-15
7.10 PCB Receiver Oscillator, 2500
............ 7-16
............ 7.1 1 PCB Carrier Oscillator, Z500A 7-17
7.12 PCB Exciter. Z300A
..................... 7-18
7.13 PCB Exciter Tune Circuit 2700
........... 7-19
7.14 PCB Receive Tune Circuit 2600
........... 7-20
...........
7.15 SCU-IO Control Unit Schematic 7-21
7.16
RF lnvertcr Assembly ZlOOl .............. 7-22
LlST OF TABLES
Table Page Table Page
........................ ..................
5.1 ASB-100A Relays 5-1 5.5 SCU-IO Troubleshooting 5-8
...................
5.2 Exciter Troubleshooting 5-3 6.1 Ciistomi7ing Components and Crystals ...... 6-2
.................
5.3 Receiver Troubleshooting 5-4 6.2 Summary of Frequency-Dependent
5.4 Power Amplifier/ Power Supply Components ............................. 6-3
.........................
Troubleshooting 5-6 7.1 Recommended Spare Parts List ........... 7-23
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SCU-10 CONTROL UNlT
CONTROL UNlT
(OPTIONAL)
PA-1010A POWER AMPLIFIER/ RE-1000 RECEIVER/
POWER SUPPLY EXCITER
Figure 1 .l. ASB-100A SSB Communications Equipment
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1 SUNAIR ASB-IOOA
SECTION 1
GENERAL INFORMATION
1.1 SYSTEM DESCRIPTION
TheASB-IOOA SSBCommunication Equipment is
a lightweight, airborne 10-channel, single sideband
(SSB) and compatible amplitude modulated (AM)
transmitting-receiving system designed for long
range voice communications in the 2-18 MHz fre-
quency range. The system consists of three units:
RE-1000 ReceiverIExciter, PA-IO
I OA Power
Amplif'ier/Power Supply, and SCU-IO Control
unit. (The optional MCU-30 Miniature Control
unit can
he substituted for the SCU-10.)
Input Power:
Receive:
. .
......... .3amps at 14 volts 2.5
amps at 28 volts
..........
Transmit: .14 amps at 14volts
9
amps at 28 volts
TRANSMITTER:
........ Power Output AM: 25 Watts Carrier
SSB: 100 Watts
PEP
nominal
Output Impedance
.... .50 ohms, nominal
.... Frequency Stability f 20 Hz
1.2 SPECIFICATIONS
.............. Sidetone Adjustable to lOOmw
Qualified under FAA Technieal Standard Order into 500 ohms
C3
1 b and C32b, environmental category
CAAAAAX. Duty Cycle..
.......... Continuous
Typeacceptedunder FCCRegulations, Parts83,85 RECEIVER:
and 87. Input Impedance..
.... .50 ohms nominal
...
Frequency Range ..... .2,000 to 18,000 KHz Frcqucncy Stability .0.0025%
Number of Channels ... 10 single or double fre- Clarifier
.............. Provided for tone
qucncy simplex control
...........
Channel frequency ..... Unlimited Selectivity .AM: 6.0 kHz, 6db
spacing down
20
kHz, 60db
Channeling time
...... .2seconds maximum down
SSB: 2.0 kHz, 6db
Modes of operation
... .Compatible amplitude down
modulation, receive and 6.5
kHz, 60db
transmit down
Sensitivity
........... .AM: 2uv for 6db signal-
Upper sideband, receive plus-noise to noise
and transmit ratio or better
Lower sideband, receive
and transmit
SSB: 0.7uv for lOdb
signal-plus-noise
to noise ratio or
better
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Gain ................. Not inore thari 10uv for Airdio Kespoiise ...... .Output will not Vary
lOOmw output more than 8db from 350
to 3,000 cps
AGC
................ .Output will riot Vary
more than l0db with an Audio Distortion ..... .AM: Not more than
input from 10 to 20% at l00mw
500,000~~ SSR: Not more than
10%at l00mw
....
Audio Outprit ........ .100inw into 500 ohms Spurious Kesporise .60db dowri from Channel
frequency at f 10 kHz
AM and -1-6.5 kHz §SB
The followinlg table is a list of equipnienl, with
appropriate Suilairpart iiunlbers,supplied wiih the
ASB-100A system.
1.3.1 ReceiverlExciter, RE-1000
1.3.2 Power Amplifier/Power Supply, PA-1010A
1.3.4 Shockmount, RE-1000
1.3.5 Shockmount, PA-1010A
1.3.6 Connector Kit, PA/KE
1.3.7 Plug Assennbly, mates RE-1000 to SCIJ-IO (2 each)
1.3.8 Operation and Maintenance Manual
SUNAIR PART NO.
14V 0999110004
28
V 0999120000
14
V 0999130005
28 V 0999140001
14
V 0998950009
28
V 0998970000
5
V 0998890006
0999150006
0999160001
0972220003
0747400008
0993980007
1.4.1 Antenna Coupler, CU-110 with connectors 14
V 0998161 101
28 V 0998161209
1.4.2 Autoinatic Antenna Coupler, ACU-150A
28 V (only) 8042100094
1.4.3 Antenna:
a. HF Anti-Precipitation Static Antenna Kit
b. HF Bare Wire Fixed Antenna Kit
1.4.4 Microphone
1.4.5 Hcadsct
1.4.6 Installation Cable Custom Made
1.4.7 Coax Cables Set Custorn Made
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