Optoelectronics Scout®

Monitoring Times Magazine - February 1995

Written By Haskell Moore - W5HLM


About a year ago, when Optoelectronics Engineering Manager Bill Owen paid a visit to an aircraft carrier in harbor, he observed the ship’s crew operating a myriad of radios. Like any ardent scanner buff, he began to imagine the opportunities. However, the major challenge was finding the frequencies being used without drawing attention to himself in the process. He felt it would be a bit unwise to pull out a frequency counter and start writing down frequencies on a Navy vessel. That sort of behavior has been known to get folks escorted away by men with guns. It was then and there that the idea for the Scout® was born.

In a nutshell, the Scout is a small, innocent-looking frequency counter which has been specially designed to collect frequencies inconspicuously. Measuring just 3.7” high X 2.75” wide X 1.2” deep, the Scout isn’t much larger than a pack of cigarettes and could easily pass for a high tech pager. And if you use the optional DB32 dual band antenna (which is just 1.75” tall), very few people will even notice it clipped onto your belt.

However, don’t be deceived by its size; this is one very powerful tool! The Scout functions like a conventional frequency counter in that it measures the frequency of any transmission from 10 MHz to 2.8 GHz that is ten to fifteen dB greater than the ambient RF level. Measurement time is a fast 75 milliseconds with 1 kHz resolution. But in addition to its diminutive size and innocent appearance, its unique memory features are what really set it apart from a conventional counter.

When the Scout is armed to begin collecting frequencies, it can store up to four hundred in the built-in non-volatile memory. The Scout will also keep track of up to 250 hits per frequency.

Operation of the Scout is very straightforward. The three slide switches and one push button on the front each serve two or more functions. Nevertheless, the primary and secondary functions of each switch are clearly labeled and very easily understood.

The Scout features a large, clear display which can be seen easily in the sun, and a bright electroluminescent display light for night operation. It also has an aural beep to inform you when it has logged a hit, or will function in the “silent” mode with a pager style vibrator.

If by now you think you’ve heard it all, the Scout still has one more extraordinary trick up its sleeve. When connected via the ICOM CI-V interface to the ICOM R7000, R7100, or R9000 receiver, or a Realistic® PRO2005/6 scanner modified to allow computer control (such as with OptoScan456), it will automatically tune the scanner to the frequency the Scout most recently captured. Or, you may scroll back through previously captured frequencies to tune the scanner to those. Just think of the potential—instant lock-on to any strong transmitter in the vicinity!

The Scout On Patrol Well, it all looks pretty good on paper. But how will it perform under actual conditions? The following chart shows the results of my tests using several different transmitters. In each case, the receiving antenna specified was the one that provided the maximum range for the Scout. Performance will vary according to local RF conditions.

Transmitter Type Output Power Receiving Antenna Range
Cellular Telephone 3 Watt Seeker 800 198 Feet
Cellular Telephone 600 MW Seeker 800 130 Feet
UHF Amateur Handheld 4 Watt DB 32 201 Feet
VHF Amateur Mobile 45 Watt DB 32 276 Feet
UHF Amateur Mobile 35 Watt DB 32 285 Feet
Citizens Band Handheld 4 Watt 20" Collapsible Whip 103 Feet
Baby Monitor/Cordless Phone 100 MW 20" Collapsible Whip 2 Inches
       


To test the Scout in a truly random environment, I attached it to the dashboard of my car with a strip of Velcro. Over the course of several days, it provided some very interesting data. Even though the built-in digital filter minimizes the number of false readings, under circumstances of high RF saturation (such as near high-powered paging transmitters and repeaters), quite a few may slip by. On the positive side, the Scout revealed numerous frequencies that I had not yet logged.

After using the Scout for just a short time, it became readily apparent that the logic of operation had been well thought out. For instance, when the backlight was activated, it would go off after ten seconds in order to conserve the battery. However, when a new frequency was captured or any switch setting was changed, the light would reactivate for another ten seconds. This feature was quite useful when using the Scout in the car at night.

The life of the built-in NiCad battery was more than sufficient for an average day’s use, typically exceeding six hours. The battery can be recharged in two hours with the provided charger, or quick charged in less than an hour from a one amp, twelve volt source.

The Scout is manufactured by Opoelectronics, Inc., 305-771-2050 (5821 NE 14th Ave., Ft. Lauderdale, FL 33334). It is also available from Grove Enterprises (800-438-8155). The introductory price of $399.95 is expected to jump to a new list price of $449 in February. The Seeker 800 antenna, mentioned in the chart above, is available from Radioware (800-950-9273) for $37.99.

MT Editor's Note: This review is based upon the most recent version of the Scout®, which we were later informed has been renamed model 400 (named for the number of frequencies it can record). The previous version, model 25, stored half as many frequencies. Besides the vastly increased memory capability, several other features, such as retention of non-volatile memory, power up beep, and display appear to be improved. An upgrade to the 400 from your model 25, however, will cost around $80 through the manufacturer.


For more information about the Scout, click on the logo below.


 

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