Moseley PCL-600 User manual

User Manual
Moseley PCL-6000
Doc. 602-13375-01
January 2008

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
WARRANTY
All equipment designed and manufactured by Moseley Associates, Inc., is warranted against
defects in workmanship and material that develop under normal use within a period of (2) years from the
date of original shipment, and is also warranted to meet any specifications represented in writing by
Moseley Associates, Inc., so long as the purchaser is not in default under his contract of purchase and
subject to the following additional conditions and limitations:
1. The sole responsibility of Moseley Associates, Inc., for any equipment not conforming to
this Warranty shall be, at its option:
A. to repair or replace such equipment or otherwise cause it to meet the represented
specifications either at the purchaser's installation or upon the return thereof f.o.b. Santa Barbara,
California, as directed by Moseley Associates, Inc.; or
B. to accept the return thereof f.o.b. Santa Barbara, California, credit the purchaser's account
for the unpaid portion, if any, of the purchase price, and refund to the purchaser, without interest,
any portion of the purchase price theretofore paid; or
C. to demonstrate that the equipment has no defect in workmanship or material and that it
meets the represented specification, in which event all expenses reasonably incurred by Moseley
Associates, Inc., in so demonstrating, including but not limited to costs of travel to and from the
purchaser's installation, and subsistence, shall be paid by purchaser to Moseley Associates, Inc.
2. In case of any equipment thought to be defective, the purchaser shall promptly notify
Moseley Associates, Inc., in writing, giving full particulars as to the defects. Upon receipt of such notice,
Moseley Associates, Inc. will give instructions respecting the shipment of the equipment or such other
manner as it elects to service this Warranty as above provided.
3. This Warranty extends only to the original purchaser and is not assignable or transferable,
does not extend to any shipment which has been subjected to abuse, misuse, physical damage, alteration,
operation under improper conditions or improper installation, use or maintenance, and does not extend to
equipment or parts not manufactured by Moseley Associates, Inc., and such equipment and parts are
subject to only adjustments as are available from the manufacturer thereof.
4. NO OTHER WARRANTIES, EXPRESS OR IMPLIED, SHALL BE APPLICABLE TO
ANY EQUIPMENT SOLD BY MOSELEY ASSOCIATES, INC., AND NO REPRESENTATIVE OR
OTHER PERSON IS AUTHORIZED BY MOSELEY ASSOCIATES, INC., TO ASSUME FOR IT ANY
LIABILITY OR OBLIGATION WITH RESPECT TO THE CONDITION OR PERFORMANCE OF ANY
EQUIPMENT SOLD BY IT, EXCEPT AS PROVIDED IN THIS WARRANTY. THIS WARRANTY
PROVIDES FOR THE SOLE RIGHT AND REMEDY OF THE PURCHASER AND MOSELEY
ASSOCIATES, INC. SHALL IN NO EVENT HAVE ANY LIABILITY FOR CONSEQUENTIAL
DAMAGES OR FOR LOSS, DAMAGE OR EXPENSE DIRECTLY OR INDIRECTLY ARISING FROM
THE USE OF EQUIPMENT PURCHASED FROM MOSELEY ASSOCIATES, INC.

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
FCC Notice
Note: This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely
to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
Any external data or audio connection to this equipment must use
shielded cables.
PCL6000 Manual Dwg # 602-13375-01; Revision Levels:
SECTION DWG REV ECO REVISED/
RELEASED
602-13375-01 A
1.3.3, 1.3.4, 1.4.1, 2.2.2,
4.2.1, 4.3.1, and 6 602-13375-01 B January 2008

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
Table of Contents
1SYSTEM CHARACTERISTICS............................................................................................1-1
1.1 Introduction...................................................................................................................................1-1
1.2 System Features.............................................................................................................................1-1
1.3 System Specifications ....................................................................................................................1-2
1.3.1 PCL6020, PCL6030, PCL6060 Composite System ................................................................1-2
1.3.2 PCL6020, PCL6030, PCL6060 Monaural System..................................................................1-3
1.3.3 PCL6010 Transmitter Specifications.......................................................................................1-3
1.3.4 1.3.4 PCL6020, PCL6030, PCL6060 Receiver Specifications................................................1-4
1.4 System Description........................................................................................................................1-5
1.4.1 PCL6010 Transmitter ..............................................................................................................1-5
1.4.2 PCL6020, PCL6030, PCL6060 Receivers............................................................................... 1-8
2INSTALLATION....................................................................................................................2-1
2.1 Unpacking ......................................................................................................................................2-1
2.2 Power..............................................................................................................................................2-1
2.2.1 AC Line Voltage Selection......................................................................................................2-1
2.2.2 DC Option ...............................................................................................................................2-3
2.3 Pre-installation Checkout .............................................................................................................2-3
2.4 Rack Installation............................................................................................................................2-5
2.5 Antenna Installation......................................................................................................................2-6
2.6 Transmission Cables .....................................................................................................................2-7
2.7 Program and Multiplex Installation — Transmitter..................................................................2-9
2.8 Program and Multiplex Installation — Receiver...................................................................... 2-12
2.9 Main/Standby Interconnect........................................................................................................2-13
2.9.1 Transmitter Interconnect........................................................................................................2-14
2.9.2 Receiver Interconnect — Other STL Receivers ....................................................................2-17
2.9.3 Receiver Interconnect — PCL6000/606/600 Composite.......................................................2-18
2.9.4 Receiver Interconnect — PCL6000/606/600 Mono .............................................................. 2-19
2.10 Remote Control of the STL Transmitter...................................................................................2-20
2.11 Multichannel Remote Interconnect (Option)............................................................................ 2-21
3OPERATION.........................................................................................................................3-1
3.1 Introduction...................................................................................................................................3-1
3.2 Transmitter Operational Controls...............................................................................................3-1
3.2.1 Transmitter Front Panel...........................................................................................................3-1
3.2.2 Transmitter Rear Panel............................................................................................................3-2
3.2.3 Multichannel Transmitter Operation .......................................................................................3-3
3.3 Receiver Operational Controls.....................................................................................................3-4
3.3.1 Receiver Front Panel ...............................................................................................................3-4
3.3.2 Receiver Rear Panel.................................................................................................................3-7
3.3.3 Multichannel Receiver Operation............................................................................................ 3-8

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
4MODULE CHARACTERISTICS ...........................................................................................4-1
4.1 Introduction...................................................................................................................................4-1
4.2 Transmitter Theory of Operation................................................................................................4-1
4.2.1 Transmitter Audio/Power Supply............................................................................................4-1
4.2.2 Transmitter RF Module ...........................................................................................................4-3
4.2.3 RF Amplifier ...........................................................................................................................4-7
4.2.4 Channel Control Board (Multichannel Option).....................................................................4-10
4.3 Receiver Theory of Operation....................................................................................................4-12
4.3.1 Receiver Audio/Power Supply ..............................................................................................4-12
4.3.2 Receiver RF Module..............................................................................................................4-14
4.3.3 Preamp/1st Mixer (950 MHz, PCL6060) ..............................................................................4-17
4.3.4 IF Demod (PCL6020)............................................................................................................ 4-17
4.3.5 Double Converter/LO3 (PCL6030/6060).............................................................................. 4-18
4.3.6 FM Demod (PCL6030/6060).................................................................................................4-18
4.3.7 Adjacent Channel Filter (PCL6060)......................................................................................4-19
4.3.8 Channel Control Board (Multichannel Option).....................................................................4-20
5ALIGNMENT.........................................................................................................................5-1
5.1 Introduction...................................................................................................................................5-1
5.2 Test Equipment..............................................................................................................................5-1
5.3 Alignment Procedures...................................................................................................................5-3
5.3.1 STL Frequency Alignment......................................................................................................5-3
5.3.2 Receiver Sensitivity.................................................................................................................5-5
5.3.3 Receiver Selectivity.................................................................................................................5-7
5.3.4 Transmitter Deviation and Receiver Output Level Calibration............................................... 5-8
5.3.5 Ultimate Signal-to-Noise Ratio .............................................................................................5-13
5.3.6 Distortion Alignment.............................................................................................................5-14
5.3.7 Stereo Separation and Stereo Signal-to-Noise Ratio ............................................................. 5-17
5.3.8 Stereo Crosstalk.....................................................................................................................5-21
5.3.9 STL Frequency Change.........................................................................................................5-23
5.3.10 FMO Adjustment................................................................................................................... 5-32
5.3.11 Transmitter Troubleshooting Procedure................................................................................5-34
5.4 Module Adjustments Information..............................................................................................5-35
5.4.1 Transmitter Audio/Power Supply..........................................................................................5-35
5.4.2 Transmitter RF Module ......................................................................................................... 5-37
5.4.3 Doubler Assembly (1.7 GHz)................................................................................................5-38
5.4.4 RF Amplifier .........................................................................................................................5-38
5.4.5 Receiver Audio/Power Supply ..............................................................................................5-40
5.4.6 Receiver RF Module..............................................................................................................5-41
5.4.7 IF Demod (PCL6020)............................................................................................................ 5-42
5.4.8 Double Converter/LO3 (PCL6030/6060).............................................................................. 5-43
5.4.9 Preamp/1st Mixer (950 MHz, PCL6060) ..............................................................................5-43
5.4.10 FM Demod (PCL6030/6060).................................................................................................5-44
5.4.11 Adjacent Channel Filter (PCL6060)......................................................................................5-44
5.4.12 Channel Control Board (Multichannel Option).....................................................................5-44
5.5 Test Fixture Diagrams.................................................................................................................5-46
6CUSTOMER SERVICE.........................................................................................................6-1
6.1 Introduction...................................................................................................................................6-1

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
6.2 Technical Consultation..................................................................................................................6-1
6.3 Factory Service ..............................................................................................................................6-2
6.4 Field Repair....................................................................................................................................6-2
7 SCHEMATICS AND ASSEMBLY DRAWINGS....................................................................7-1
7.1 PCL 6000-220 STD (602-10300-71 Rev A) ..................................................................................7-1
7.2 PCL 6000-330/450 STD (602-10301-71 Rev A) ......................................................................... 7-32
7.3 PCL 6000-950 STD 602-10299-71 Rev A...................................................................................7-66
7.4 PCL 6000-1.7 GHz Standard System.......................................................................................7-103

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
List of Figures
Figure 1-1a,b: PCL6010 Transmitter Block and Level...................................................1-12,13
Figure 1-2a,b: PCL6020 Receiver Block and Level ......................................................1-14,15
Figure 1-3a,b: PCL6030 Receiver Block and Level ......................................................1-16,17
Figure 1-4a,b: PCL6060 Receiver Block and Level ......................................................1-18,19
Figure 2-1 Line Filter/Fuse Holder Programming (Detail shows 100 VAC operation selected)
......................................................................................................................................2-2
Figure 2-2 Typical Bench Test Setup...................................................................................2-4
Figure 2-3 Typical PCL6000 Site Installation.......................................................................2-8
Figure 2-4 Transmitter PGM and MUX Interconnect — Composite .....................................2-9
Figure 2-5 Transmitter PGM and MUX Interconnect — Mono ...........................................2-11
Figure 2-6 Receiver PGM and MUX Interconnect — Composite.......................................2-12
Figure 2-7 Receiver PGM and MUX Interconnect — Mono ...............................................2-13
Figure 2-8 Main/Standby Transmitter Interconnect — Composite .....................................2-15
Figure 2-9 Main/Standby Transmitter Interconnect — Mono..............................................2-16
Figure 2-10 Main/Standby Receiver Interconnect — Other STL Receivers.......................2-17
Figure 2-11 Main/Standby Receiver Interconnect — PCL6000 Composite........................2-18
Figure 2-12 Main/Standby Receiver Interconnect — PCL6000 Mono................................2-19
Figure 2-13 Transmitter I/O Remote Connector Pin-Out (Rev. A)......................................2-20
Figure 2-14 Transmitter I/O Remote Connector Pin-Out (Rev. B or Later) ........................2-20
Figure 2-15 Transmitter Channel Control Connector Pin-Out............................................2-21
Figure 3-1 PCL6010 Transmitter Front Panel (Standard) ....................................................3-1
Figure 3-2 PCL6010 Transmitter Rear Panel.......................................................................3-3
Figure 3-3 PCL6010 Transmitter Rear Panel (DC Option)...................................................3-3
Figure 3-4 PCL6010 Transmitter Front Panel (Multichannel Option) ...................................3-3
Figure 3-5 PCL6020 Receiver Front Panel (Standard) ........................................................3-5
Figure 3-6 PCL6030 Receiver Front Panel (Standard) ........................................................3-5
Figure 3-7 PCL6060 Receiver Front Panel (Standard) ........................................................3-5
Figure 3-8 Typical SNR Curves ...........................................................................................3-7
Figure 3-9 PCL6000 Receiver Rear Panel...........................................................................3-7
Figure 3-10 PCL6000 Receiver Rear Panel (DC Option).....................................................3-8
Figure 3-11 PCL6020 Receiver Front Panel (Multichannel Option) .....................................3-8
Figure 5-1 Test Setup for Frequency Alignment ..................................................................5-4
Figure 5-2 Sensitivity Test Setup .........................................................................................5-5
Figure 5-3 Selectivity Test Setup .........................................................................................5-7

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
Figure 5-4 Test Setup For Deviation Alignment ...................................................................5-9
Figure 5-5a Bessel Null Function Waveform......................................................................5-10
Figure 5-6 Test Setup for MUX Channel Alignment...........................................................5-12
Figure 5-7 Test Setup For Signal-To-Noise Ratio Measurement .......................................5-14
Figure 5-8 Test Setup for Distortion Alignment ..................................................................5-15
Figure 5-9 Stereo Separation Test Setup...........................................................................5-17
Figure 5-10 Swept Separation Waveform..........................................................................5-19
Figure 5-11 Stereo Crosstalk Setup...................................................................................5-21
Figure 5-12a Nonlinear Crosstalk, Main to Sub .................................................................5-23
Figure 5-13 Test Setup for FMO Adjustment .....................................................................5-32
Figure 5-14 50 Hz High-Pass Filter....................................................................................5-46
Figure 5-15 75 μs De-Emphasis with 30 Hz High-Pass Filter ............................................5-46

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
List of Tables
Table 2-1 Transmitter and Receiver Fuse Settings.............................................................2-2
Table 2-2 Transmitter and Receiver Standard DC Fuse Values .........................................2-3
Table 2-3 Remote Connector Wiring Guide......................................................................2-14
Table 2-4 Channel Control Remote Interface Logic..........................................................2-22
Table 3-1 Transmitter Meter Functions and Scales.............................................................3-2
Table 3-2 Receiver Meter Functions and Scales .................................................................3-6
Table 4-1 Transmitter Channel 0 Programming.................................................................4-11
Table 4-2 Receiver Channel 0 Programming...................................................................4-20
Table 5-1 Recommended Test Equipment..........................................................................5-1
Table 5-2 Frequency Selection Chart – 950 MHz band .....................................................5-24
Table 5-3 Synthesizer Frequency Selection Switch Settings............................................5-31

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
Glossary
AFC Automatic Frequency Control
AM Amplitude Modulation
AGC Automatic Gain Control
BB Baseband
BCD Binary Coded Decimal
BPF Band Pass Filter
BW Bandwidth
Comp Composite
dB Decibel
dBc Decibel Relative to Carrier
dBm Decibel Relative to 1 mW
DP Decimal Point
DVM Digital Voltmeter
EMI Electromagnetic Interference
EPROM Erasable Programmable Read-Only Memory
ESD Electrostatic Discharge, Electrostatic Damage
FCC Federal Communications Commission
FET Field Effect Transistor
FM Frequency Modulation
FMO Frequency Modulation Oscillator
FSK Frequency Shift Keying
GHz Gigahertz
HF High Frequency
HPF High Pass Filter
IC Integrated Circuit
IEC International Electrotechnical Commission
IF Intermediate Frequency
IMD Intermodulation Distortion
I/O Input/Output
IPA Intermediate Power Amplifier
kHz Kilohertz
LED Light-Emitting Diode
LF Low Frequency

Moseley PCL6000
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
LO Local Oscillator
LPF Low Pass Filter
MHz Megahertz
MAI Moseley Associates, Inc.
Mono Monaural
ms Millisecond
mW Milliwatt

Moseley PCL6000 1-1
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
1 System Characteristics
1.1 Introduction
The PCL6000 Studio-to-Transmitter Link (STL) is designed to convey FM program material from
a studio site to a transmitter site. The PCL6000 also simultaneously conveys control and
secondary programming subcarriers. This equipment may also be used to provide high-quality
program transmission in intercity relay service.
The PCL6000 series is a family of equipment that can operate in several bands from 150 MHz
through 1.7 GHz. This operating manual covers the 220 MHz, 330 MHz, 450 MHz, 950 MHz, and
1.7 GHz bands of operation and the various configurations in those bands.
1.2 System Features
In addition to establishing a new industry standard for performance, the PCL6000 incorporates
many new and innovative features to aid in the installation, operation, and maintenance of a
system. Some of the features are:
Very low distortion ceramic IF filters offering unprecedented selectivity.
Peak reading meter for all major functions.
Two-decade logarithmic true signal strength meter.
Important status functions implemented with bi-color LED indicators.
Designed to have a minimum of adjustments for trouble-free operation.
Modular construction that provides excellent shielding and at the same time allows easy
access to components.
Multichannel Option: Up to sixteen pre-programmed channels available with remote
operation capabilities.
NOTE: Please study the manual at least through Section 5 before attempting to install the
system.

1-2 System Characteristics
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
1.3 System Specifications
1.3.1 PCL6020, PCL6030, PCL6060 Composite System
Frequency Range: 148–174 MHz
215–240 MHz
300–330 MHz
440–470 MHz
890–960 MHz
1.5–1.7 GHz
Channel Spacing: 100–500 kHz (500 kHz standard)
Frequency Response: ± 0.2 dB or better, 30 Hz–53 kHz
± 0.3 dB or better, 30 kHz–75 kHz
Distortion (THD and IMD)
PCL6020:
PCL6030/6060:
0.2% or less, 30 Hz–7.5kHz
(typically better than 0.15% at 1 kHz)
Convolved stereo demodulation products greater than 50 dB
below the 100% modulation reference level (400 Hz) from
7.5 kHz–15 kHz
0.1% or less, 30 Hz–7.5 kHz
(typically better than 0.1% at 1 kHz)
Convolved stereo demodulation products greater than 50 dB
below the 100% modulation reference level (400 Hz) from
7.5 kHz–15 kHz
Stereo Separation
PCL6020:
PCL6030/6060:
50 dB or better, 50 Hz–15 kHz
(typically 55 dB or better)
51 dB or better, 50 Hz–15 kHz
(typically 55 dB or better)
Nonlinear Crosstalk
PCL6020:
PCL6030/6060:
50 dB or better (Sub to Main Channel)
51 dB or better (Main to Sub Channel)
Signal-to-Noise Ratio
PCL6020:
PCL6030/6060:
72 dB or better (typically 75 dB)
Demodulated,de-emphasized (left or right)
Referenced to 100% modulation
75 dB or better (typically 77 dB)
Demodulated, de-emphasized (left or right)
Referenced to 100% modulation
Emission: 500F9

Moseley PCL6000 1-3
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
1.3.2 PCL6020, PCL6030, PCL6060 Monaural System
Frequency Range: 148–174 MHz
215–240 MHz
300–330 MHz
440–470 MHz
890–960 MHz
1.5–1.7 GHz
Frequency Response: ± 0.3 dB or better, 30 Hz–15 kHz
Distortion (THD and IMD)
PCL6020:
PCL6030/6060:
0.2% or less, 30 Hz–15 kHz
(typically better than 0.15% at 1 kHz)
0.1% or less, 30 Hz–15 kHz
(typically better than 0.10% at 1 kHz)
Signal-to-Noise Ratio
PCL6020:
PCL6030/6060:
72 dB or better (typically 75 dB)
Referenced to 100% modulation
75 dB or better (typically 77 dB)
Referenced to 100% modulation
Operating Temperature: -20°C to +70°C
Emission: 110F3 (no subcarrier)
110F9 (with 26 kHz control subcarrier)
230F9 (with 67 kHz program subcarrier)
1.3.3 PCL6010 Transmitter Specifications
Type: Solid state
Direct FM
Frequency synthesized
Crystal referenced
RF Power Output
800–960 MHz:
148–470 MHz:
1.5–1.7 GHz:
6 watts
8 watts
5 watts
RF Output Connector: Type N Female, 50 ohm
Deviation (100% Modulation)
Composite:
Monaural:
± 50 kHz
± 40 kHz
Frequency Stability: Better than 0.00025% (2.5 ppm) from 0°C to 50°C
Spurious & Harmonic Emission: More than 60 dB below carrier level
Modulation Capability: One program and two subcarrier channels
Modulation Inputs Composite:
3.5 Vp-p @ 6 Kilohms, unbalanced
Frequency range: 30 Hz–80 kHz
(1 BNC connector)

1-4 System Characteristics
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
Monaural:
MUX 1:
MUX 2:
+10 dBm @ 600 ohms, balanced, floating
Frequency range: 30 Hz–15 kHz
(Barrier strip connector)
1.5 Vp-p @ 4 Kilohms, unbalanced
Frequency range: 85–200 kHz
(1 BNC connector)
1.5 Vp-p @ 4 Kilohms, unbalanced
Frequency range: 85–200 kHz
(1 BNC connector)
Power, AC: 100/120/220/240 VAC (±10%), 50/60 Hz, 70 watts
Dimensions: 3.5" (8.9 cm) high
19.0" (48.3 cm) wide
16.5" (41.9 cm) deep
Shipping Weight: 12.7 kg (28 lb) domestic
1.3.4 PCL6020, PCL6030, PCL6060 Receiver Specifications
RF Input Connector: Type N female, 50 ohm
Sensitivity
PCL6020 Composite:
PCL6020 Monaural:
PCL6030/6060 Composite:
PCL6030/6060 Monaural:
120 mV or less required for 60 dB SNR;
left or right channel de-emphasized, demodulated
20 mV or less required for 60 dB SNR
100 mV or less required for 60 dB SNR;
left or right channel de-emphasized, demodulated
20 mV or less required for 60 dB SNR
Selectivity
Composite:
Monaural:
Spectral Efficient Composite:
3 dB IF bandwidth: ± 125 kHz
80 dB IF bandwidth: ± 1.2 MHz
3 dB IF bandwidth: ± 90 kHz
80 dB IF bandwidth: ± 1.2 MHz
3 dB IF bandwidth: ± 100 kHz
80 dB IF bandwidth: ± 1.0 MHz
Adjacent Channel Level
(to degrade SNR by 3 dB)
PCL6020:
PCL6030/6060:
+10 dBc
wide band: +20 dBc
narrow band: +10 dBc
Modulation Outputs
Composite:
Monaural:
MUX:
3.5 Vp-p @ 200 ohm, unbalanced
Frequency range: 30 Hz–80 kHz
(2 BNC connectors, parallel connection)
+10 dBm @ 600 ohms, balanced
Frequency range: 30 Hz–15 kHz
(Barrier strip connector)
1.5 Vp-p @ 100 ohm, unbalanced

Moseley PCL6000 1-5
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
Frequency range: 85–200 kHz
(2 BNC connectors, parallel connection)
Power, AC: 100/120/220/240 VAC (±10%), 50/60 Hz, 30 Watts
Power, DC Options
12 VDC:
24 VDC:
48 VDC:
Isolated ground (factory standard)
Chassis negative ground (user selectable)
10–20 VDC, 30 watts
18–36 VDC, 30 watts
36–72 VDC, 30 watts
Dimensions: 3.5" (8.9 cm) high
19.0" (48.3 cm) wide
16.5" (41.9 cm) deep
Shipping Weight: 12.7 kg (28 lb) domestic
1.4 System Description
1.4.1 PCL6010 Transmitter
The PCL6010 Transmitter is a high-fidelity broadband FM transmitter with a power output of 5–15
watts (depending on frequency and system configuration). It is capable of transmitting the
program signal and two multiplex subcarriers with little degradation of signal quality over one link.
The linearity and FM noise characteristics of the direct FM oscillator are exceptional. The
transmitter is modular in construction and operation, and the system description given below
follows the signal flow through the various modules.
Refer to Figures 1-1a and 1-1b, PCL6010 Transmitter Block and Level Diagram. Assembly
drawings and schematics for the complete transmitter system and for its modules are located in
Section 7.
Audio Processor
The Audio Processor is located in the TX Audio/Power Supply board. Three signal inputs are
provided to the Audio Processor module—one audio (composite or monaural) signal and two
multiplex signals. The composite input level is 3.5 Vp-p (5.7 kohms), mono input level is +10 dBm
(600 ohms, selectable), mux input level is 1.5 Vp-p. 75 μs pre-emphasis is selectable. The board is
jumper-programmable for composite, mono, or digital input operation and level adjustments are
provided for all functions. Summing amplifiers combine the inputs into a single baseband signal
that is passed on to the FMO Synthesizer in the RF module.
FMO Synthesizer
The baseband signal from the Audio Processor modulates the frequency modulated oscillator
(FMO) in the RF module. The FMO consists of a 60–80 MHz ultralinear, very low noise VCO
which is phase locked to a crystal-controlled reference oscillator. The phase lock loop contains
the frequency programming switches which allow the synthesizer to be changed in frequency
steps of 25 kHz. The RF output of the FMO is filtered to attenuate any harmonics. With 100%
modulation, the RF signal will deviate ±50 kHz (composite) or ±40 kHz (monaural) from the
carrier. The output power of the FMO is approximately 1 mW.

1-6 System Characteristics
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
1st Local Oscillator (950 MHz)
The 1st Local Oscillator (LO1) section of the RF module consists of an oven controlled crystal
oscillator, a doubler, and a step recovery diode (SRD) multiplier. The oscillator operates at 102
MHz (nominal). The resultant multiplication factor of the LO is X10. The output (1020 MHz) is
filtered and attenuated before being applied to the upconverter mixer. A level detector provides
front panel metering information. The output power is approximately +10 dBm.
1st Local Oscillator (330/450 MHz)
The 1st Local Oscillator (LO1) section of the RF module consists of an oven controlled crystal
oscillator, a doubler, and a step recovery diode (SRD) multiplier. The oscillator operates at 96.25
MHz (nominal). The resultant multiplication factor of the LO is X4. The output (385 MHz) is
externally filtered and then attenuated before being applied to the upconverter mixer. A level
detector provides front panel metering information. The output power is approximately +10 dBm.
1st Local Oscillator (220 MHz)
The 1st Local Oscillator (LO1) section of the RF module consists of an oven controlled crystal
oscillator and a step recovery diode (SRD) multiplier. The oscillator operates at 97 MHz
(nominal). The resultant multiplication factor of the LO is X3. The output (291 MHz) is externally
filtered and then attenuated before being applied to the upconverter mixer. A level detector
provides front panel metering information. The output power is approximately +10 dBm.
1st Local Oscillator (1.7 GHz)
The TX RF module output frequency (850 MHz, nominal) is multiplied (X2) in the Doubler
Assembly to achieve the desired carrier frequency (1.7 GHz, nominal). Therefore, the operating
frequency of the 1st LO is nearly identical to the 950 MHz band configuration. The 1st LO (LO1)
section of the RF module consists of an oven controlled crystal oscillator, a doubler, and a step
recovery diode (SRD) multiplier. The oscillator operates at 92 MHz (nominal). The resultant
multiplication factor of the LO is X10. The output (920 MHz) is filtered and attenuated before
being applied to the upconverter mixer. A level detector provides front panel metering information.
The output power is approximately +10 dBm.
Up Converter
To preserve the low noise and low distortion characteristics of the FMO, the RF signal is up-
converted to the required carrier frequency through the use of a double-balanced mixer and the
1st Local Oscillator (LO1). The appropriate mix product is selected with a bandpass filter. The
Intermediate Power Amplifier (IPA) amplifies the signal to a level high enough to drive the RF
power amplifier (RFA) or the Doubler Assembly in the 1.7 GHz system. The Upconverter/IPA is
located in the RF module.
RF Amplifier (950 MHz)
The RF Amplifier module internally consists of a three-stage hybrid amplifier, which amplifies the
input signal (40 mW, typical) to the nominal 6-watt transmitter output. The output is filtered to
attenuate all higher order harmonics to a level of at least -60 dBc. The output is sampled via a
dual directional coupler with detectors that provide an indication of the forward and reflected
power of the RF amplifier. The final stage current is sampled and metered in this module.
RF Amplifier (450 MHz)
The RF Amplifier module internally consists of a three-stage hybrid amplifier, which amplifies the
input signal (100 mW, typical) to the nominal 8-watt transmitter output. The output is filtered to
attenuate all higher order harmonics to a level of at least -60 dBc. The output is sampled via a
dual directional coupler with detectors that provide an indication of the forward and reflected
power of the RF amplifier. The final stage current is sampled and metered in this module.

Moseley PCL6000 1-7
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
RF Amplifier (330 MHz)
The RF Amplifier module internally consists of a three-stage discrete design, which amplifies the
input signal (100 mW, typical) to the nominal 8-watt transmitter output. The output is filtered to
attenuate all higher order harmonics to a level of at least -60 dBc. The output is sampled via a
dual directional coupler with detectors that provide an indication of the forward and reflected
power of the RF amplifier. The final stage current is sampled and metered in this module.
RF Amplifier (220 MHz)
The RF Amplifier module internally consists of a two-stage discrete design, which amplifies the
input signal (100 mW, typical) to the nominal 8-watt transmitter output. The output is filtered to
attenuate all higher order harmonics to a level of at least -60 dBc. The output is sampled via a
dual directional coupler with detectors that provide an indication of the forward and reflected
power of the RF amplifier. The final stage current is sampled and metered in this module.
Doubler Assembly (1.7 GHz)
The output frequency of the TX RF module is one-half the desired carrier frequency (850 MHz,
nominal). The output is applied to the Doubler Assembly which multiplies the signal (X2) and is
filtered before being amplified by the RFA (1.7 GHz, nominal).
RF Amplifier (1.7 GHz)
The RF Amplifier module internally consists of a four-stage discrete design, which amplifies the
input signal (1 mW, typical) to the nominal 5-watt transmitter output. The output is filtered to
attenuate all higher order harmonics to a level of at least -60 dBc. The output is sampled via a
dual directional coupler with detectors that provide an indication of the forward and reflected
power of the RF amplifier. The final stage current is sampled and metered in this module.
Transmitter Control
The Transmitter Control section of the Audio/Power Supply board has several functions. One of
these is to sense the AFC LOCK detect signal from the RF module. If this module goes out of
lock, then the radiate control logic circuit provides a signal to the power supply to turn off the
+12.5 VDC supply (+22 VDC for 1.7 GHz) to the IPA and RFA, causing the transmitter to stop
radiating. Remote control functions are implemented in this circuitry.
Metering and Status
The Metering and Status circuitry on the Audio/Power Supply board conditions the various
system parameter samples for accurate meter indications, and drives the status LEDs on the
front panel. Remote status indications are also provided by this circuitry.
Power Supply (AC)
The Power Supply section of the Audio/Power Supply board converts any of four AC input
voltages (100, 120, 220, 240 VAC) into the five regulated DC voltages required for the operation
of the transmitter. The outputs are +15, -15, and +5 VDC for most of the system electronics. A
high current +12.5 VDC (+22 VDC for 1.7 GHz) supplies the RFA. A regulated -12 VDC supply
powers the crystal ovens in the 1st LO and the FMO/Synthesizer.
Power Supply (DC Option)
Transmitters configured for DC operation only (±12, ±24, and ±48 VDC) have internal switching
power supplies to provide the system voltages. These supplies can be isolated from chassis
ground to allow negative DC source operation. The RFA supply may be powered directly from the
battery, depending on the primary DC source.

1-8 System Characteristics
Moseley PCL 6000 Document No. 602-13375-01 Rev.B
Multichannel Operation (Option)
The Channel Control board is pre-programmed to select the transmitter carrier frequency by
controlling the FMO/synthesizer (in the RF module) and the modulation compensation circuitry
(located on board). This board has facilities for over-ride of the pre-programmed channel
frequencies (Channel 0 operation). Remote control of the channel selection is also provided on
this board through access to the back panel. Channel selection and display is accessed by the
user through the front panel. The Channel Control board connects to the RF module via a 25-pin
D ribbon cable. The RF module must be compatible for multichannel operation. Please contact
the factory for field retrofit of the system.
1.4.2 PCL6020, PCL6030, PCL6060 Receivers
The PCL6000 System has three receivers which are designed for different RF environments. The
PCL6060 and PCL6030 are triple-conversion receivers which provide maximum out-of-band and
adjacent channel protection. The PCL6060 exhibits superior front end performance in the
presence of extremely strong RF fields, as it uses modules from the time-proven Moseley
PCL606 STL. The PCL6020 is a dual-conversion receiver that provides maximum performance in
all but the most demanding environments. Both systems are switchable to support mono or
composite operation. The receivers are modular in construction and operation, and the system
description given below follows the signal flow through the various modules.
Refer to Figures 1-2a/b, 1-3a/b, and 1-4a/b, Receiver Block and Level Diagrams. Assembly
drawings and schematics for the complete receiver systems and for their modules are located in
Section 7.
Preselector/Preamplifier (950 MHz, PCL6020/6030)
The Preselector/Preamplifier is located in the RF module. The antenna input signal is first passed
through the preselector filter, which is a pcb-mounted helical bandpass filter with very low
insertion loss. The output of the preselector filter is fed to the preamplifier providing low-noise
gain. The postselector filter provides further filtering as well as image noise rejection.
Preselector Filter (950 MHz, PCL6060)
The antenna input signal is first passed through the Preselector Filter, which is a five-element,
interdigital bandpass filter with a 20 MHz bandwidth and maximum insertion loss of 1.5 db. This
filter has superior rejection due to its mechanical implementation.
Preamp/1st Mixer (950 MHz, PCL6060)
The output of the Preselector Filter is fed to the Preamp/1st Mixer module. This module
incorporates an adjustable PIN diode attenuator for user-adjustable front end protection. The low-
noise, high-intercept point preamplifier is followed by the image noise filter. The 1st Mixer down-
converts the carrier to the first IF (70 MHz) by mixing with the 1st LO and is buffered for
transmission to the Double Converter/LO3 module.
Preselector Filter (220–450 MHz)
The antenna input signal is first passed through the Preselector Filter, which is a three-element,
helical bandpass filter with an 8 MHz bandwidth and maximum insertion loss of 1.5 db. This filter
has superior rejection due to its mechanical implementation.
Preselector Filter (1.7 GHz)
The antenna input signal is first passed through the Preselector Filter, which is a five-element,
interdigital bandpass filter with a 20 MHz bandwidth and maximum insertion loss of 1.5 db. This
filter has superior rejection due to its mechanical implementation.