Motorola R2600 Maintenance Manual

R2600 Series, including R2600, R2625 and R2670
Communications 
System Analyzers
If you maintain, repair, calibrate, or design radio
communications equipment, the R2600 family of
Communications System Analyzers has a solution for
you. Rugged enough to withstand heavy field use,
the R2600 is designed to help you save time and work
more efficiently. This platform is available in three models,
each tailored to its own set of testing requirements.
                         

R2600 Series Communications System Analyzers
The R2600 Series: The test solution for conventional
twoway systems, APCO™ Project 25 (Project 25) 
conventional and trunked, SMARTNET/ SmartZone™,
ASTRO™, SECURENET™, and more.
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The R2600 family of Communications System Analyzers 
performs tests normally associated with these instruments:
• RF Signal Generator• Sensitive Measurement Receiver
• Spectrum Analyzer
• Full Band Duplex Offset Generator• Frequency Counter
• AC/DC Voltmeter• 50 kHz Oscilloscope
• RF...

The R2600 family has a solution for your radio communication testing needs
R2600 – For Conventional 
Radio and Base Station
Service
If you service conventional two
way systems, the valuepackedR2600 is the product for you. 
Because of its unique design, the
R2600 allows you to performnumerous complex functions with
the same piece of equipment. This“onebox” design is especially usefulin remote sites or where use ofmultiple pieces of heavy equipmentis impractical – or impossible. And
now, the R2600 comes...

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FeatureDescriptionBenefits
High Performance Spectrum
AnalyzerThe builtin High Performance Spectrum Analyzer
will display a window of RF spectrum anywherewithin the 400 kHz to 1 GHz operating range ofthe unit. The EXPAND softkey enlarges the
display to fill the LCD and retains dispersion
and center frequency control.
The High Performance Spectrum Analyzer adds
Marker functions for more precise measurements
of level and frequency (both absolute anddelta). Included with the marker functions areadditional...

Standard System Features – continued
Feature Description Benefits
Relative Signal Strength MeterIn addition to reading frequency error and
modulation, a digital readout relative signal
strength meter has been included. Sensitivity
is specified to 100 dBm at the antenna portfor FM signals and extends up to 125 watts at the RF I/O port. The LCD display will automatically convert to a terminating “watts”display as the level increases.This feature, in conjunction with an external
antenna, allows remote...

Standard System Features – continued
Feature Description Benefits
OfftheAir Sensitive ReceiverThe 2 microvolt sensitivity of the unit is 
available through the antenna port. This allowsofftheair monitoring of remote transmitters
operating up to 1 GHz. Variable squelch aids in picking up weak signals but can be settighter to ensure the proper S/N ratio for 
measurement accuracy.This feature reduces service costs by enabling
frequent preventive maintenance parameterchecks for system degradation or...

SMARTNET/SmartZone Option
Feature Description Benefits
Dynamic Call Testing 
of Subscriber RadiosThis feature tests Motorola compatible Type I,
Type II, SmartZone and ASTRO IMBE/VSELPtrunked mobile and portable radio units underactual signaling conditions. This is achieved by simulating the function of the trunked fixedend equipment. The radio access control channel is provided to perform initial 
registration. A thermometerstyle graphic indicator shows call progression as it directs the
radio to a...

Project 25 Conventional Test Option
Feature Description Benefits
Voice Mode System TestingThis feature provides Project 25 compatible
FDMA Digital C4FM modulation and demodulation with vocoding and embedded data testing.Generate and monitor modes support actualfunctional voice testing. Within the voicemode, embedded data can be encoded anddecoded for either subscriber or fixed siteradio equipment.This feature allows you to verify operation and
system compatibility under actual operatingconditions for...

Bit Error Rate (BER) TestingBER testing can be performed on base stations
and repeaters which support BER test capabil
ity. The R2670 and R2625 in Project 25 trunkingmode can monitor RF transmissions modulated
with a V.52 BER test pattern.This testing provides an accurate, quantitative
measurement of modulation quality and systemperformance.
Full Duplex Test of Base
Station RepeatersProject 25 compatible FDMA digital C4FM 
modulation of 1011 Hz test pattern with simultaneous C4FM/LSM demodulation of...

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Feature Description Benefits
Project 25, ASTRO and SECURENET Common Features
Encryption Test OptionVoice and embedded data encode and decode
testing can also be done in the encryptedmode using either test keys, which are permanently stored in the R2670, or actual 
customerselected keys which can be loaded
into the unit using a compatible key loader. This feature allows verification of the proper
operation and system compatibility using actual encryption algorithms.
Baseband Audio Scope DisplayThis...