Product Pricing, Availability, and Purchasing Instructions
Basic Countermeasures Equipment
2050CA - RF LOCATOR
Designed for locating low power radio frequency (RF) devices from 10 KHz to well over 1000 MHz. Has provisions for external extenders such as the 2075U which takes the unit beyond 30,000MHz. The 2050CA incorporates stabilized chopper-amplifier circuitry which gives exceptional sensitivity. The unit has one broadband and five tuneable ranges. Meter indicates relative signal strength while headset output is either a tone proportional to signal strength (works like a Geiger counter) or demodulated audio. Powered by a single standard 9-volt battery. Case size 2x3x5 inches. Supplied with headset.
The 2050CA is an ultra-sensitive hand-held radio frequency (RF) detector with visual and tonal readout of relative signal strength. The six position BAND Switch selects either a broad-band detector or one of five tunable ranges. The amplified signal is displayed on the meter, as a tone whose pitch is proportional to signal strength or as demodulated audio of signals with an amplitude modulated (AM) component. In the tone/pitch mode the unit functions much like the well known Geiger counter.
OPERATING INSTRUCTIONS: Connect the antenna to the BNC jack on the top of the unit. Extend two or three sections using only the heaviest or larger diameter sections. Insert the headset (Note: The 2050CA is designed for use with a high impedance headset such as the 2,000 ohm unit supplied). The headset is worn with the gray tube under the chin and the sound output holes facing slightly forward (30 degrees). Apply power by rotating the SENSITIVITY control clockwise to about three-quarters of its range. Set the TUNING control so the white indicating line is pointing directly away from the words LOW END. Start with the BAND Switch in position 1. Sweep an area (such as a wall) about 4 to 5 feet wide with the antenna vertical. Sweep the same area with the antenna horizontal and then perpendicular. Sweep the same area on bands 2 through 5. Move on to the next 4 to 5 foot area. After the walls, bookshelves, etc. have been swept, go over each and every piece of furniture, getting the antenna as close as possible. If the meter goes off scale or the tone abruptly stops or goes too high in pitch reduce the sensitivity by rotating the SENSITIVITY control counterclockwise to no less than the 9 o'clock position. If that is not sufficient, shorten the antenna one or two sections. When a strong signal is located it can, under some conditions (i.e. signals with an AM component), be monitored by switching the TONE/AUDIO switch to AUDIO.
The 2050CA will locate high power radio or TV stations up to several miles. The unit will also locate low power signals (1 to 10 milliwatts) at distances of 5 to 25 feet. When searching for low power transmitters bear in mind that high power signals can be reflected, re-directed and appear to re-radiate from the least expected places. Therefore, use common sense when performing RF sweeps. If additional sensitivity is needed, rotate the TUNING control for maximum indication on the meter. The BAND Switch position B is for sweeps where broad-band detection at lower sensitivity is desired. When the switch is on B. the white line on the TUNING control should be pointing directly away from the words LOW END. Newer versions of the 2050CA have an unmarked jack on the left side of the unit. This is for external accessories such as the 1 to 20 GHz extender antenna.
The frequencies shown on the BAND Chart are approximate and used as reference points only. The unit should be stored or shipped with the antenna disconnected, the BAND Switch in position 5 and the TUNING control pointing towards the words LOW END. Alkaline batteries are preferred. Remove the battery if the unit is stored for prolonged periods of time.
Product Pricing, Availability, and Purchasing Instructions
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