FAQ

TargetTrack and SignalTrack control the frequency, squelch, and volume of the supported receivers.  Additionally, TargetTrack provides scanning and search functionality for the AOR SR2200 and ICOM R8600.

Yes, but be sure to disable the transmitter by, for example, disconnecting the microphone.

The receiver’s antenna jack connects to the RF summer output and the external speaker connects to the audio input on the direction finder. Series 5900/6000/6100 contain loudspeakers for monitoring the signal. Series 7000 has an audio output jack for connecting a loud speaker.  Note that some receivers use an isolated Read more…

When the unit is used as recommended with a narrow band FM receiver, it will work with any signal that has a carrier that remains within the IF bandwidth of the receiver. This would include unmodulated carriers, narrow band fm modulated signals, and amplitude modulated signals. It will also work Read more…

Normal voice modulation used on NBFM signals may cause a few degree variation in the display. Data telemetry transmitters may affect the operation depending on the frequencies and modulation methods used. The direction finder will work with most digitally encoded signals (e.g. P25); however, in some cases it may be Read more…

You can generally tell that you are in a bad multipath environment when the received tone sounds harsh. The bearing may or may not be incorrect under multipath conditions, but it is best to ignore the bearings when you hear such a signal.

The best way to avoid multipath is to stay high in elevation away from surrounding reflective surfaces. Hill tops, parking garage roofs and elevated freeways are good locations. Multipath errors tend to average out spatially, so it is best to keep moving. This is another reason why it is best Read more…

Probably not. The preamplifiers used in the RF summer have a high dynamic range but they are broad band, and it is likely that a nearby transmitter will cause overload. Before attempting to install a fixed site direction finder, evaluate the site first with a temporary or mobile setup. Try Read more…

The direction finders will work with AM receivers such as those used in the aircraft band, but the antenna needs special consideration. In mobile service in the aircraft band using a NBFM receiver, the antenna elements should be cut for resonance at the operating frequency. The system will then work Read more…

Adjacent antenna elements must be less than 1/2 wavelength apart. Deviation and hence sensitivity increase with spacing up to the point where the phase difference between the signals from adjacent elements begins to approach 180 degrees. A phase of 180 degrees does not, however, correspond to 1/2 wavelength because the Read more…