AR 10043685, Operating And Service Manual

Page: 15 / 26

Rev A 1
1. GENERAL INFORMATION
This manual supports models with different field strength specifications. Refer to the model specification
sheet to determine the applicable features of this unit.
1.1 GENERAL DESCRIPTION
The AR RF/Microwave Instrumentation (AR) Model AA26G40 Field Generating System is a solid-state, air-
cooled, broadband field generating system designed for applications where low-level, high-frequency fields
are required. Included is a tripod-mountable amplifier/antenna field generating unit.
The Model AA26G40, when used with an external signal generator, will provide a minimum of 20 V/m field
strength for the AA26G40-20 and 50 V/m field strength for the AA26G40-50 at a distance of 1 meter. The
AA1000 is recommended for providing DC power, RF signal routing and fault detection to the AA26G40.
The AA26G40 is protected from over-temperature through forced-air cooling.
1.2 SPECIFICATIONS
Refer to the AR data sheet at the end of this section for detailed specifications for the Model AA26G40.
1.3 PERFORMANCE DATA
Electric field data at various operating frequencies for the Model AA26G40 are included in Section 2 of
this manual.
1.4 INSTALLATION
Before installing the system, thoroughly inspect the unit for signs of any physical damage that may have
occurred during shipment. Read the following operating instructions in their entirety, and pay
particular attention to all CAUTION notes.
1.4.1 Auxiliary Equipment Selection
The AA26G40 will not produce field on its own as it requires DC power (two different voltages) as well as a
RF signal source. AR RF/Microwave Instrumentation recommends use of an AR Model AA1000 and an
external signal generator capable of producing RF up to at least 40 GHz. The AA1000 provides both required
DC voltages to the AA26G40 through a twinax cable and also provides RF signal routing and fault protection
for an external signal generator.