This unit was bench tested in 2005.  It turned on and displayed fine.  There are no accessories included with this unit.  That is, no antenna, no gps sensor, and no battery charger.  The battery is dead.

Overview

FOX is a hand-held, battery powered signal strength meter convenient for finding RF “shadows” in indoor wireless systems or for drive-around studies to detect RF leakage and propagation coverage.  FOX is designed to be powered from either AC, a cigarette lighter, or to run for up to 8 hours on its internal, rechargeable NiCad (Nickel Cadmium) battery.

General Features

• FOX has a 240 x 64 graphic Liquid Crystal Display (LCD) with electroluminescent back lighting and can display up to 160 channels (frequencies) at one time. The unit can resolve signal levels to 1 dB accuracy in real-time and display dBm in either bar graph or scrolling X axis with a 1 second tick mark format. The sampling rate for Receive Signal Strength Indication (RSSI) is user-programmable. Display contrast may be adjusted via the up and down arrow keys while in the greeting screen.   Each of these settings are then stored in non-volatile memory. The keypad is used for menu selection and includes full numeric entry for which channels to scan, along with other user programmable functions.

• The keypad has 20 alpha-numeric keys for user entry.

• RS-232 serial interface is supported for use with Seiko DPU-411 thermal printer.

• Auto calibration feature utilizes a unique on-board program to calibrate the FOX without operator assistance (using either Marconi 2957/2960 or HP 8920 communication test sets). The calibration values are automatically stored in nonvolatile EEROM.

• The audio (speaker) volume is adjustable using the up and down arrow keys while in the CHAN screen.

• A built-in real-time clock (RTC) is used in connection with the MARKER feature to log time stamp vs. positional information with the collected data.

• An internal NiCad battery is employed for up to 8 hours of operation before recharging is necessary.

• Battery backup storage static random access memory (SRAM) is available for permanently saving screen setups and favorite channel numbers, as well as collected measurements.

• Fast battery charger

• Internal differential GPS 8 channel receiver uses an active antenna, which can magnetically attach to the roof of a vehicle

Options

• PCMCIA mass non-volatile storage RAM cards (128k - 2 MBytes are supported)

• BER demodulation: bit, byte, packet and burst error counts (where applicable)

• Printer: Seiko, Inc. DPU-411 Type 11 with cable