The R20 Interceptor® $119.00

The R20 AM Interceptor® is both a sensitive RF signal strength meter (for ALL RF signals) and a near field AM receiver. The 10 segment LED bargraph responds with nominal 3dB increments to the RF signal level received through the built in antenna. Amplitude modulated signals are detected and can be monitored using the supplied earphone. FM transmitters can be detected by quieting, resulting from detector saturation. The audio output is processed using automatic level circuitry. This eliminates the need for a volume control, and also protects the listener from strong signals that produce potentially harmful loud transients.

Use AM Receiver Function For

Aircraft Communications Monitoring
Ham Radio
CB Radio
AM Broadcast
Communications Test

The Near-Field Amplitude Modulated Receiver circuitry uses a Microwave Miniature Integrated Circuit Amplifier (MMIC) and a microwave diode detector. The demodulated audio signal is amplified to drive an earphone. Because the R20 uses no oscillators, it does not create electrical interference with sensitive navigation or communication equipment found aboard aircraft. The R20 responds instantly to the strongest signal because it does not require any tuning.

Use Signal Strength Bargraph For

RF field strength measurements
Check transmitter output
Locate stuck transmitters
Test microwave oven leakage
Counter surveillance - Check for local RF activity
- Locate hidden transmitters (bugs)

The Signal Strength bargraph feature of the R20 is ideal for relative field strength measurements. Each segment corresponds approximately to a 3dB change in average signal level. Internal adjustments are provided to set the zero and full scale levels.

Specifications

Frequency Range           Wide Bandwidth .5MHz to >2.5GHz;
Output                    Earphone Jack for Demodulated Audio Out
Indicators                10 Segment LED Bargraph
Power                     Internal 9V battery powered with easy
                          access compartment.
                          3+ hour battery life
Antenna                   Telescoping whip antenna
                          collapses inside case
Size                      Pager Sized 4.2" H x 2.4" W x .9" D

All stated specifications are subject to change without notice or obligation

Last updated: 2/22/96