Regco RG-5500 User manual

TECHNICAL MANUAL
RG·5500
VHF/UHF RECEIVER
specialists in electronic
equipment and systems
"
The R. E. GRIMM COMPANY
16000 Industrial Drive
Gaithersburg, Maryland
20760
Courtesy of http://BlackRadios.terryo.org

· FEBRUARY 1981
-dlE- Vl$ION A
RG-5500 VHF/UHf RECEIVER
TECHNICAL MANUAL
Courtesy of http://BlackRadios.terryo.org

INTRODUCTION
This manual provides information on the operation and Maintenance of the
RG -5500 VHF /UHF Receiver. Parts lists and a complete set of schematic drawings
are included.
Chapter 1, Description of Equipment, presents a physical and functional
description of the receiver . A complete list of specifications is also provided.
Chapter 2,
Installation, deae rtbes equipment inspection, mounting, and installa-
tieD procedures. All rear-panel controls and connectors are described.
Chapter 3. Operation, identifies all front-panel controls, indicators, and
connectors and describes procedures for receiver operation.
Chapter 4, Principles of Operation, functionally describes the operation of the
receiver, keyed to block and schematic diagrams .
Chapter 5, Alignment, describes alignment proced u res and operational checks.
Chapter 6, Parts Lists. itemizes the electrical components, integrated ci rcuit
modules. and electro-mechanical parts referenced to layout diagrams.
Chapter 7. Drawings, contains interconnection, power. and schematic diagrams.
A table listIng signal mnemonics is also included .
Chapter 8. Integrated Circuit Data, lists and descrlbes all Integrated circuits
used in the receiver.
(il blank)
Courtesy of http://BlackRadios.terryo.org

TABLE OF CONTENTS
Chapter
INTRODUCTION
LIST OF ILL USTRATIONS
LIST OF TABLES
1. DESCRIPTION OF EQUIPMENT
1 -1. INTRODUCTION
1-2 . PHYSICAL DESCRIPTION
1-3. SPEC IFIC ATIONS
1-4. FUNCTIONAL DESCRIPTION
2. INSTALLATION
2- 1.
PRELIMINARY CHECKS
a. Inspection
b. AC Voltage Check
c. Rece i ver Remote Control Address Set
2 -2. OPERATIONAL CHECKS
2-
3. INSTALLATION AND MOUN TI NG
3. OP ERATION
3
-1. CONTROLS, INDICATORS, AND CONNECTORS
3- 2.
OPERATING PROCEDURES
a. Local Mode Operation
b. Memory Mode Operation
c. Remote Mode Operation
(1) Remote Address ing the Receiver
(2) Command Format
d. Spectrum. Monitor
4.
PRINCIPLES OF OPERATION
4
-1. INTRODUCTION
4- 2.
SIMPLlFIED FUNCTIONAL DESCRIPTION
a. Digital Control Section
b. Synthesizer Section
c. RF Section
d. AGe Section
e. IF Section
Page
vi
x
i-I
1-1
1-1
1-6
2-1
2- 1
2-1
2-1
2- 2
2- 2
3-1
3-1
3-1
3-2
3-2
3 -2
3-2
3-4
4- 1
4
-1
4-1
4-1
4-1
4-2
4- 2
ill
Courtesy of http://BlackRadios.terryo.org

TABLE OF CONTENTS - Continued
Ch apter
Page
4-3.
DETA I LED FUNCTIONAL DESCRIPTION
4-3
a. Digital Control Section 4- 2
(1) Di
gital Control Assemb ly
4-2
(2) Remote Control Interface
Assembly 4- 4
b. Synthesi zer Section
4-5
(1 ) A22 Synthesizer Assembly (figu re 7- 15)
4-5
(2) A20 and A2 1 Voltage Contl'O ll ed Osc ill ators
4-9
c. RF Section. 4- 9
(1) A33
RF Input Switch (figure 7-59)
4- 9
(2) A16
RF Assemb ly (figu re 7-13)
4- 10
(3) AlB RF Preselector Driver and PIN Diode
Switch
Olivers (figure 7-14)
4-11
d.
AGe Section 4-11
(1) A25 AGC Amplifier (figure 7-51) 4- 11
(2) A28
COR/Squelch Amplifier (figure 7-54) 4- 12
e.
IF Section
4-12
(1) A23 IF Assembly (figure 7- 27) 4- 12
(2) A27 Audio
Video Amplifier (figure 7- 53) 4-14
4-4.
POWER SUPPLY CIRCUITS 4-14
4-5.
A24 SPECTRUM MONITOR (figure 4-8) 4- 14
a. A24A2 Amplifier, Mixer, IF Ampl
ifier ( fi gure 7- 46) 4- 14
b.
A24A3 Sweep Generator/VeO/Marker (figu re 7-47) 4-15
c.
A24A5 Deflection Amplifier (figu re 7 -4 9) 4-15
d.
A24A4 DC/DC Converter (figure 7-48) 4- 15
5.
ALIGNMENT
5- l. INTRODUCTION
5-1
5- 2. TEST EQUIPMENT
5- 1
5-
3. RECEIVER DISASSEMBLY AND REASSEMBLY 5- 1
5-4. POWER SUPPLY VOLTAGE CHECKS
5-1
5- 5. A34 AND A35 FIRST AND SECOND LOCAL
OSCILLATOR AMPLIFIER OUTPUT CHECK 5-2
5- 6. A23A5
IF ASSEMBLY OUTPUT AMPLIFIER
ALIGNMENT PROCEDURES 5- 3
a. A23A5 Output
Amplifier
5- 3
b.
Beat Frequency Oscillator
5- 5
5- 7.
A23AI -A4 IF ASSEMBLY 21.4 MHz BANDPASS
AMPLIFIERS
5- 5
Iv
Courtesy of http://BlackRadios.terryo.org

TABLE OF CONTENTS -Continued
Chapter
Page
5- 8. A23A6 -A9 IF ASSEMBLY 21.4 MHz
LIMITER/DISCRIMINATORS 5-8
5
-9 . A25 AGC ASSEMBLY ALIGNMENT 5-11
5-10. RF TONER SECTION ALIGNMENT 5-11
5-11. A24A2 SP ECTRU M MONITOR AMPL/MIXER/IF AMPL 5-14
A24A3 SPECTRUM MONITOR SWEEP GEN/VCO/MKR 5-18
5 -1 3. A24A5 SPECTRUM MONITOR DEFLECTION AMPLIFIER 5-20
6. PARTS LIST
7. DRAWINGS
7-1. INTRODUCTION
7
-2. SIGNAL MNEMONICS
8. INTEGRA
TED CIRCUIT DATA
8 -1. INTEGRA TED CIRCUIT LOGIC SYMBOLS
8- 2. INTEGRA
TED CIRCUIT LOGIC DIAGRAMS
7-1
7-1
8 -1
8 -1
v
Courtesy of http://BlackRadios.terryo.org

Figure
1-l.
1-2.
1- 3.
2- l.
2-2.
3 -1 .
4 -l.
4-2 .
4-
3.
4-4.
4- 5.
4-6.
4-7.
4-8 .
5 -l.
5-2 .
5-3.
5-4 .
5- 5.
5-6.
5-7.
5- 8.
5-9.
5 -10.
5- 11.
5- 12.
5
-1 3.
6-l.
6-2.
6-3.
6-4.
6-5 .
6- 6.
6-7.
vi
LIST OF ILLUSTRATlONS
RG -5500 VHF /UHF Re c eiver
RG-5500 Ass e mbly Locations
Titl e
RG-5500 VHF/ UHF Receiver Simplified Block Diagram
Remote Control Address Switch Selection
Rear Panel Controls and Connectors
Front Panel Controls, Indicators,
and Connectors
RG-5500
Receiver Functional Block Diagram
Digital Co nt rol Assemb ly Functional Block Diagram
Remote Control Interface
Assembly Functional Block Diagram
Synthesizer Section Functional Block Diagram
RF TUner Section Functional Block Diagram
AGC Section Functional BlockDiagram
IF Amplifier Section Functional Block Diagram
A24 Spectrum Monitor Functional
Block Diagram
A23A5 21. 4
MHz Output Amplifier Alignment Test Setup
A23A5
21.4 MHz Output Amplifier Frequency Response Test Setup
A23 IF Assembly Adjustment Locations
A23AI-A4 21. 4
MHz Bandpass Amplifier Frequency Response
Alignment Test Setup
Typical Bandpass Amplifier Response Curve
A23AI-A4 21. 4
MHz Bandpass Amplifier Gain Adj u st Test Setup
A23A6-A9 21. 4
MHz FM Limiter/Discriminator Frequency
Response Alignment
Test Setup
A23A6-
A9 21. 4 MHz FM Limiter/Discriminatol' Gain Adju st
Test Setup
AGC Assembly, RF Section, and Spectrum Monitor Ad justment
Locations
A24 Spectrum Monitor Bottom View Adjustment and
Test
Point Locations
A24 Spectrum Monitor 21. 4
MHz Inpu t Amplifier Alignment
Test Set
A24 Spectrum Monitor
13 MH z IF Amplifier Alignment Test Setup
A24 Spectrum Monitor 2 MH z IF Amplifier Alignment Test Setup
RG-5500 VHF/
UHF Receiver Component Locations
Rectifier Board Al Parts Location Diagram
Control Circuit
Power Supply A2 Parts Location Diagram
Switch Boa
rd A7 Parts Lo cation Diagram
Display
Register AS Parts Location Diagram
Display
Driver A9 Parts Location Diagram
Display Board AIO
Parts Location Diagram
Page
1-0
1-7
1-9
2-4
2- 5
3- 5
4-17
4-19
4-21
4-23
4-25
4-27
4-29
4- 31
5-3
5-4
5-6
5-7
5-9
5-9
5-12
5-12
5-13
5-15
5-17
5-
17
5 -1 8
6-11
6-23
6-25
6-27
6- 29
6-31
6-33
Courtesy of http://BlackRadios.terryo.org

Figure
6-8.
6-9.
6-10.
6-11.
6-12.
6 -1 3.
6-14.
6-15.
6-16.
6-17.
6-18.
7-1.
7-2.
7-3 .
7-4.
7-5.
7-6.
7-7.
7- 8.
7-9.
7-10.
7-1I.
7-12.
7-13.
7-14.
7-15.
7-16.
7-17.
7-18.
7-19.
7-20 .
7-21.
7-22.
7-23.
7-24 .
LIST OF ILLUSTRATIONS - Continued
Title
Memory Board All Parts Location Diagram
Hold
Register A12 Parts Location Diagram
I/O Board Al3 Parts Location Diagram
Remote Control I/O Board A14
Parts Location Diagram
Remote Control Interface
A15 Parts Location Diagram
RF Preselector Oliver and Pin Diode Switch Drivers Al8
Parts Location Diagram
AGC Amplifier A25 Parts Location Diagram
Audio/Video Amplifier
A27 Parts Location Diagram
COR/Squelch Amplifier
A28 Parts Location Diagram
Trigger Generator A32 Parts Location Diagram
RF Input Switch A33 Parts Location Diagram
RG-5500 VHF/UHF
Receiver Main Chassis Schematic Diagram
RG-5500 Main Power Schematic Diagram
A 1 Rectifier Board Schematic Diagram
A2 Control Circuit Power Supply Schematic Diagram
A8 Display Register Schematic Diagram
A9 Display Driver Schematic Diagram
AID Display Board Schematic Diagram
A 11 Memory Board Schematic Diagram
A
12 Hold Register Schematic Diagram
A
13 I/o Board Schematic Diagram
A14 Remote Control I
/O Board Schematic Diagram
A
15 .Remote Control Interface Schematic Diagram
A
16 RF Tuner Module Schematic Diagram
A
18 RF Pl'eselector Drivers and PlN Diode Switch Drivers
Schematic Diagram
A22 Synthesizer Assembly Schematic Diagram
A22Al Iterative Synthesizer Schematic Diagram
A22AlAl Filter Module Schematic Diagram
A22A2, A3.
A4 Iterative Synthesizer Schematic Diagram
A22A5
Base Synthesizer Schematic Diagram
A22A6
Reference Generator Schematic Diagram
A22A7 Steering Synthesizer Schematic Diagram
A22A8 Output Tracking Synthesizer Schematic Diagram
A22A9
138.600 MHz Phase-Locked Local Oscillator
Schematic Diagram
A22A10 638 .6 00 MHz Phase-Locked Local Oscillator
Schematic Diagram
6-35
6- 39
6
-4 2
6-47
6-50
6-69
6-207
6-216
6-220
6-228
6-230
7-5
7-11
7-13
7-15
7-17
7-19
7-21
7-23
7-25
7- 29
7-31
7-33
7-37
7-3 9
7-41
7-43
7- 45
7-47
7-49
7-51
7- 53
7-55
7-57
7-59
vii
Courtesy of http://BlackRadios.terryo.org

Figure
7-25 .
7-26 .
7-27.
7- 28.
7-29.
7- 30.
7-31.
7-32 .
7-
33.
7-34.
7-35.
7-36.
7-37.
7- 38.
7- 39.
7-
40.
7-41.
7-42.
7-43.
7-44.
7- 45.
7- 46.
7-47.
7-48.
viii
LIST OF ILLUSTRATIONS - Continued
Title
A22A10Al Frequency Multiplier Module Schematic Diagram
A22All 2ND LO Switch Schematic Diagram
A23 IF Assembly Schematic Diagram
A23A
1- A4 21. 4 MHz Bandpass Amplifier 10 kHz to 100 kHz
Bandwidth Schematic Diagram
A23AI-A4 21.4 MHz Bandpass Amplifier 300 kHz Bandwidth
Schematic Diagram
A23A1-A4 21.4 MHz Bandpass Amplifier 500 kHz Bandwidth
Schematic Diagram
A23A1-A4 21. 4 MHz Bandpass Amplifier 1 MHz Bandwidth
Schematic Diagram
A23A1-A4 21. 4 MHz Bandpass Amp lifier 2 MHz Bandwidth
Schematic Diagram
A23A1-A4 21. 4 MHz Bandpass Amplifi er 3 MHz Bandwidth
Schematic Diagram
A23AI -A4 21. 4 MHz Bandpass Amplifier 4 MHz Bandwidth
Schematic Diagram
A23A5 21.4 MHz Output Amplifier and AM Detector
Schematic Diagram
A23A6-A9 21. 4 MHz limiter/Discriminator 10 kHz to 100 kHz
Bandwidth Schematic
Diagram
A23A6-A9 21. 4 MHz Limiter/Discriminator 300 kHz Bandwidth
Schematic
Diagram
A23A6-A9 21. 4 MHz Limiter/Discliminator 500 kHz Bandwidth
Schematic Diagram
A23A6-A9 21. 4 MHz Limiter/Discriminator 1 MHz Bandwidth
Schematic Diagram
A23A6-A9 21 .4 MHz Limiter/Discriminator 2 MHz Bandwidth
Schematic
Diagram
A23A6-A9 21. 4 MHz Limiter/Discliminator 3 MHz Bandwidth
Schematic
Diagram
A23A6-A9 21. 4 MHz Limiter/Discriminator 4 MHz Bandwidth
Schematic
Diagram
A23A10 IF Switching Module Schematic Diagram
A24 S{JElctrum Monitor Schematic Diagram
A24A1 Input Filter Schematic Diagram
A24A2 Amplifier/Mixer/IF Amplifi er Schematic Diagram
A24A3 Sweep Generator/VeO/Marker Schematic Diagram
A24A4 DC/DC Converter-Focus and Intensity Assembly
Schematic Diagram
Page
7-61
7-63
7-65
7- 67
7-69
7-71
7-73
7-75
7-77
7-79
7-81
7-83
7-85
7-87
7-89
7-91
7-93
7- 95
7-97
7-99
7-101
7-103
7-107
7- 111
Courtesy of http://BlackRadios.terryo.org

LIST OF ILLUSTRATlONS -Cont inued
Figure
Title
Page
7- 49.
A24A5 Deflection Amplif i er Schematic Diagram. 7 -11 3
7 -5 0. A24A6
Power Regulator Schematic Di agram
7-11 5
7-5l.
A25 AGe Amplifier Sc hematic Diagram
7- 117
7- 52. A26 21. 4 MHz Line Amp lifi er Schematic Di agram
7-119
7-53.
A27 Audio/Video Amp lifi er Schematic D iag ram
7 -1 21
7
-5 4.
A28 COR/Squelch Amplifier Schematic Diagram
7 -1 23
7- 55. A29 Phone
Jack Assemb ly Schematic Diagr am
7- 125
7-56.
A30 Output Filter Assembly Schema ti c Diagram
7- 127
7 -57.
A3! COR Relay Assembly Schem atic Diagram 7 -1 29
7-58.
A32 Trigger Generator Schematic Di agram
7-131
7-59.
A33 RF Input Switch Schematic Diagram 7
-1 33
7-
60.
A34 2ND LO Amplifier Schematic Diagram
7-135
7-6l.
A35 1ST LO Amplif i er Schematic Diagram 7-137
8 -l. Integrated Cir cuit Logic Symbols and Truth Tabl es
8-3
8-2.
Integrated C ir cllit Logic Diagrams
8- 5
ix
Courtesy of http://BlackRadios.terryo.org

Table
2-I.
3-I.
5 -I.
6-I.
6-2.
6-3.
6-4.
6-5 .
6- 6.
6- 7.
6- 8.
6- 9.
6 -1 0.
6- 11.
6- 12.
6-13.
6-14.
6 -15.
6- 16.
6-17.
6 -1 8.
6 -19.
6 -2 0.
6- 2l.
6- 22 .
6-23.
6-24.
6- 25.
6-26.
6- 27.
6- 2 8.
6- 29.
6- 30.
6-3l.
6-32.
6- 33.
6-34.
6- 35A.
x
LIST OF TABLE S
Ti tl e
Rear Panel Controls and Indicators
Front
Panel Contl"o l s. Indicators, and Connecto rs
Rece i ver AM, FM, Sensitivity in -dBm at Given IF Bandwidths
RG-5500 VHF/UHF Receiver Parts List
Rectifier Board Al Parts List
Control Circuit Power Supply A2 Parts List
Switch Board A7 Parts List
Display Register AS Parts List
Display Driver A9 Parts List
Display Board AlO Parts List
Memory Board All Parts Lis t
Hold Register A12 Parts List
I/o Board Al3 Parts List
Remote Control I/o Board A14 Parts List
Remote Control Interface A15 Parts List
RF Tuner Module A16 Parts List
Second Converter Switch A16Al Parts List
High Band Preamplifier No. 2 Al6A2 Parts List
First Converter Switch A16A3 Parts List
Low Band Preamp l ifier and Switch A16A4 Parts List
High Band Pr eamplifier No. 1 A l6A5 Parts List
RF
Preselector Driver and Pin Diode Switch Drivers AlB
Parts Li st
Synthesizer Assem bl y A22 Parts List
It erative Synthesizer A22Al Parts List
Filter Module A22AlAl Parts List
I terative Synthesizer A22A2, A3, A4 Parts List
Base Synthesizer A22A5 Parts List
Reference Generator A22A6 Parts List
steering Synthesi zer A22A7 Parts List
Output Tracldng Synthesizer A22AS Parts List
13 8.600 MHz Phase -L ocked Crystal Osci lla tor A22A9 Parts List
63S. 600 MHz Phase -L ocked Local Osci ll ator A2ZA lO Parts List
Frequency MultiplierModule A22AlOAl Parts Lis t
X10 Mu ltipli er A22A10AIAI Part. Li st
RF Amplifier A22AIOA1A2 Parts List
2ND LO Switch A22All Parts List
IF Assemb ly A23 Parts List
21. 4 MHz Bandpass Amplifier A23Al -A4 (10 kHz to 100 kHz
Bandwidth)
Parts List
Page
2-3
3-6
5-10
6-12
6- 24
6-26
6- 28
6- 30
6-32
6-34
6- 36
6-40
6-43
6- 48
6-51
6-55
6-59
6- 62
6- 63
6-65
6-67
6 -7 0
6- 73
6
-7 6
6-82
6- 83
6-89
6- 93
6-96
6-100
6-106
6-112
6- 118
6-119
6- 122
6- 124
6- 125
6
-1 28
Courtesy of http://BlackRadios.terryo.org

Table
6-3SB.
6-3SC.
6-35D.
6-35E.
6-3SF.
6-35G.
6-36.
6-37A.
6-37B.
6- 37C.
6-37D.
6- 37E.
6-37F.
6-37G.
6-38.
6-39.
6-40.
6-41.
6-42.
6-43.
6-44.
6-45 .
6-46.
6-47.
6-48.
6-49.
6 -S 0.
LIST OF TABLES - Continued
Title
21. 4 MHz Bandpass Amplifier A23A1-A4 (300 kHz Bandwidth)
Parts List
21.4 MHz Bandpass Amplifier A23Al-A4 (500 Hz Bandwidtb)
Parts List
21.4 MHz Bandpass Amplifier A23A1-A4 (1 MHz Bandwidth)
Parts List
21. 4 MHz Bandpass Amplif i er A23AI-A4 (2 MHz Bandwidth)
Parts List
21. 4 MHz Bandpass Amp l ifier A23A1-A4 (3 MHz Bandwidth)
Parts List
21. 4 MHz Bandpass Amplifier A23A1-A4 (4 MHz Bandwidth)
Parts List
21. 4 MHz Output Amplifier and AM Detector A23A5 Parts List
21. 4 MHz Limiter/Discriminator A23A6-A9 (10 kHz to 100 kHz
Bandwidth) Parts List
21. 4 MHz Limiter/Discriminator A23A6-A9 (300 kHz Bandwidtb)
Parts List
21. 4 MHz Limiter/Discriminator A23A6-A9 (500 kHz Bandwidth)
Parts Lis t
21. 4 MHz Limiter/Discriminator A23A6- A9 (1 MHz Bandwidth)
Parts List
21. 4 MHz Limiter/Discriminator A23A6-A9 (2 MHz BandWidth)
Parts List
21. 4 MHz Limiter/Discliminator A23A6-A9 (3 MHz Bandwidth)
Parts List
21. 4 MHz LImIter/Discrtminator A23A6-A9 (4 MHz Bandwidth)
Parts List
IF Switching Module A23A10 Parts List
Spectrum Monitor A24 Parts List
Input Filter A24A1 Parts List
Amplifier/Mixer/IF Amplifier A24A2 Parts Ust
Sweep Generator/VCO/Marker A24A3 Parts List
DC/DC Converter-Focus and Intensity Assembly A24A4 Parts List
Deflection Amplifier A24A5 Parts List
Power Regulator A24A6 Parts List
AGe Amplifier A25 Parts List
21. 4 MHz Line Amplifier A26 Parts List
Audio/Video Amplifier A27 Parts List
COR/Squelch Amplifier A28 Parts List
Phone Jack Assembly A29 Parts List
Page
6- 131
6-135
6- 139
6-143
6-147
6-151
6-155
6-161
6- 164
6-167
6 -170
6- 173
6-176
6- 179
6- 182
6-185
6-188
6- 189
6-195
6-201
6 -2 04
6
-2 06
6-208
6
-21 4
6-217
6-221
6-224
Courtesy of http://BlackRadios.terryo.org

LIST OF TABLES - Continued
Table
--
TiUe
Page
6-51. Output
Filter Assembly A30 Parts List
6-225
6- 52. COR Relay Assemb ly A31 Parts List 6- 227
6-53. Trigger Generator A32 Parts List 6- 229
6-54. RF Input Switch A33 Parts List
6-231
6- 55. 2ND
La Amplifier A34 Parts List 6-232
6 -56.
1ST LO Amp lif ier Module ASS Parts List 6-233
7-1. Signal Mnemonics
7-1
xii
Courtesy of http://BlackRadios.terryo.org

....
,
a
~~dt
,
'..
...
"
...
'
[J
,.,
....
,
Figure 1
-1.
RG-5500 VHF/ UHF Re
ce
i
ver
Courtesy of http://BlackRadios.terryo.org

CHAPTER 1
DESCRIP TI ON OF EQUIPMENT
1- 1. INTRODUCTION. The RG-5500 VHF/UHF Receiver (figure 1- 1) is a fully
synthesized, digitally controlled, solid-state receiver. The receiver operates in tbe
range of 20 to 1000 MHz, and provides AM , FM, CW, and Pul se reception with a
resolution of 100 Hz. The receiver is contro ll ed by either t he local, remote , or
memory modes of operation provided, with the front panel display indicating the
status. Four IF bandwidth options are selected in addition to an optional sp ectr um
monitor unit.
1- 2. PHYSICAL DESCRIPTION. The RG -5500 VHF / UHF Receiver mounts in a
standard 19-incb equipment rack and has a panel height of 5 1/ 4- incbes. The RF, IF,
synthesizer. and digital co ntrol assemblies together with the AGe section , power
supply, and optional spectrum monitor are located in the receiver top portion
(figure
1-2) . The remote control interface assembly and battery supply are located
in the bottom portion. All input /o utput co nnectors, including the 24-pin remote con-
trol connection, are located on the chassis rear panel. These connections are
described in chapter 2. All operator ac ce ssable con trols and connectors are located
on the chassis front panel, and are described in chapter 3.
1-3. SPECIFICATIONS. Specifications for the RG-5500 VHF/UHF Receiver are
as follows:
Characteristics
Frequency Range . . ....... .. . .. ... . . ..•
Frequency Resolution
.................
RF Input Impedance ............ .. . ..
RF Input VSWR .......... .. ..........
RF Input Noise Figure
................
Specification
20 to 999.9999 MHz
100 Hz
50 ohms, nominal
2. 5:1. maximum from 20 to 5 10 MHz;
3. 0 :1, maximum from 510 to 1000
MHz
8 dB, maximum from 20 to 510 MHz;
10
dB, maximum from 510 to 1000
MHz
1-1
Courtesy of http://BlackRadios.terryo.org

Intermodulation Intercept Points :
2nd
Order , in - band referenced to
RF Input . ..... .. .•...... .... . . . ...••
3rd Order, in-band refere n ced to
RF Input . .. . ..... . ....... .... ... ... .
RF Input Dynamic Range ........ . ... •. ..
Synthesizer Step TIme
External Reference Standard Input
Frequency Source •.. ....•. ..... . •. .• . ..
Image Rejection
.. .. ........... .. .. ...
Residua l AM
.. .. .. ........ . .. ... ... ...
Predetectio n IF Ou tput ............ .. ...
Internally Generated Spurious • .... . ... . .
Gain
Co ntr ol Modes . ....... .... •. ..... .
AGe Stability
1-2
o dBm. no minal
-10 dBm, nominal
From maximum sensitivity of
recei ver to - 5 dBm
Less t han 100 microseconds per
step
5 MHz, 0 dBm nominal into 50 ohms ,
rear panel access
85 dB, minimum. from 20 to 510
MHz; 60 dB, minimum. from 5 10 to
1000 MHz
Using a 1 kHz sinewave amplitude
modulating the carrie r 30% in the
passband of the receiver, the
residual AM will be greater than or
e qual to 32 dB down
21. 400 MHz
ce nter frequency.
bandwidth select ed
-107 dBm, maximum.
Manual,
automatic
6 dB, maximum from AGe thresho ld
to a
level 60 dB above AGe threshold
Courtesy of http://BlackRadios.terryo.org

RF Input Sensitivity
...... .. . .. ... ..... A function
of IF bandwidth and noi se
figure as given be low:
Receiver AM. FM , Sensit ivity in
-dBm at gi v en IF Bandwidths
10 20 40 50 75 100
300 500 1 2 3 4
kHz kHz kHz kHz kHz kHz kHz kHz MHz MHz
MHz MHz
20 -510 MHz 107 104 101 100 98 97 92 90 87 84 82 81
N. F . = 8
dB
510 -1000 MHz 105 102 99 98 96 95 90 88 85 82 80
79
N.F. =10 dB
AM Th e specified input signa l l evel in dE mo AM modulated 50 percent by a 1-kHz
ton e, will produce a minimum 10 dB (S+N)/ N ratio at the IF output.
FM The spec ified input s ign al level in clBm, FM modulated at a l-kHz rate with a
deviation equal to 30 percent of the IF bandwidth, will produce a minim.um 17 dB
(S + N) / N ratio at the IF output. (400- Hz mod ula tion is us ed for the 5- kHz and
10- kHz IF bandwidths . )
Sp urious Rejection ........ ............ .
LO Le vel at RF Input . ... . . .. . . .•.. ....
Demodulatio n Modes ..................
IF Ba ndwidth ... .........." ..... . ... . .
Video Output
60 dB. minimum; except at 330
MHz rejection is 40 d B, minimum
with receiver gain maximum
1 microvo lt maximum from 20 to
510 MHz; 5 mi
crovol ts maximum
from 510 to 1000 MHz
AM, FM, C W, PULSE
A choice of any four of the following:
10 kHz, 20
kH z, 40 kHz, 50 kHz,
75 kH z, 100 kHz. 300 kHz. 500 kHz,
1 MHz. 2 MHz, 3 MHz, 4 MHz
AM
1 v olt rms into 50 ohms minimum
at rated sensitivity
FM
1 volt nns in t o SO ohms min.irrn..nn
at rat ed se ns it iv ity
1- 3
Courtesy of http://BlackRadios.terryo.org

Audio Frequency Response ...... .... .. .
Audio Output Level .. .... . ... .... .... .
AM Output Level
. .. ... ... . .. . .. . .. .
Headphone Audio Level .. . ........... .
Audio Harmonic
Distortion ........... .
Carrier Operated Relay (COR) . .. •...• •
COR
Rating
COR Attack Time . .. ............ .. .. .
COR Decay Time
COR Range/Sensitivity
.. .. ... .. . .... .
COR Actl vlt y ..............
.. .. ....
1-4
+1 dB9 maximum from 200 Hz to
15 kHz
1V rms into 600 ohms load9
minimum at rated
sensitivity
DC coupled. 200 mV rms
9
minimum into
10,000 o hms at
rated
sensitivity
Continuou sly adjustable from zero
to 10 mW into 600 ohm load,
nominal
Less than 5%at rated power
SPD T contacts brought out to
terminal strip on back panel
2A @ 28 Vdc or 11 5 Vac resistive
5 milliseconds,. nominal
0.5 second or 5 seconds. rear
panel selec t
Adjustable from maximum
sensitivity of rece iv er to -40 dBm
RF input
a. Front panel light indication
b. 1 line indication on
multi pin
connector with "low" indicating
relay contacts c losed
Courtesy of http://BlackRadios.terryo.org

Operation Modes .....•.•....•........
Spectrum Monitor (Optional)
Sweep Width
Resolution ..
.... .......... ......
Sweep Rate
.. ....................
Response Variation •.• . .......•....
Marker
CRT Display .....................
Other Controls
.... . ... ....... ... .
Temperature
.......................
Vibration
......... .. ....... .. ... ...
Size
.. ...... . ... .. ....... .. .. . .. . ..
Weight .
.. .........................
AC Power Ib.put . . .. . .. . •. ........•..
s. Remote (IEEE-488 - 1975.
address internally selectable)
b. Local (front panel control)
c. Memory (active on local on ly)
0-4 M Hz, continuously adjustable
10 kRz, nominal
25 Hz, nominal
±1 dB
21.400 MHz center frequency
1 x 3 inch nominal dimensions
a. Intensity
b. Focus
c. Center Frequency
d. Gain
Receiver will operate from 0 to
50°C
Receiver will withstand normal
mailing and handling procedures;
norma l rack-mounted vibrations
will not affect operation
5. 25 in ches high
16.7 5 inches wide
1 8.5 inches deep
Approximately 45 pounds
115/230 Vac, 48-62 Hz
1-5
Courtesy of http://BlackRadios.terryo.org

Power Consumption ..... •. •..•....... . 70 watts,
approximate ly
1-4. FUNCTIONAL DESClUPTION. The RG -5500 VHF/UHF Receiver (figure 1-3) is
operated by using front panel controls or by using a remote control device connected
at the rear panel. The frequency. IF bandwidth, demodulation mode, and gain informa-
tion applied to the digital control section is routed to the various receiver sections.
This information can also be applied to or accessed from the lS-location. nonvolatile
memory located within the digital control section. The front-panel display indicates
the status of this information.
The frequency control information applied to the synthesizer section controls
the generation of the first and second local oscillator frequencies. These frequencies
are phase and frequency locked to a 5-MHz reference frequency.
The two LO frequencies are applied one to each of tbe two mixer stages in the
RF section. These mixer stages convert the 20 to 1000 MHz RF input frequency to
the 21. 4
MHz IF. The RF section gain is AGC contro lled.
The AGe section generates AGe control voltages which are applied to the
receiver RF and IF sections. The gain commands from the digital control section,
and the detected AM from the IF section detenntne the magnitude of the AGe voltages.
The IF section converts the 21. 4 :MHz IF output of the RF section to the audio
and video demodulated
signals applied to the receiver output. AM, FM, CW, or
Pulse detection can be selected in conjunction with anyone of four bandwidth options.
The IF section gain is AGe controlled .
1-6
•
Courtesy of http://BlackRadios.terryo.org