User manual

Operation

FILTER MODE

FILTER mode is selected by placing the FILTER switch in the ON position and the CAPTURE switch

in the OFF position. FILTER mode is indicated by the FILTER annunciator on the LCD display. In

this mode, random counting, noise, and false signals are reduced or eliminated. A unique digital filter-

ing algorithm permits only meaningful measurements to be displayed. This makes using the Scout

much easier and makes frequency finding much more powerful, because distant or short duration sig-

nals can be picked out of the background clutter. In FILTER mode, as in NORMAL mode, frequency

measurements are taken continuously. However, only those measurements which pass the digital fil-

tering algorithm are displayed. Therefore, the frequency display always shows the most recent suc-

cessful frequency measurement result. Correspondingly, the LED indicator only flashes when a mea-

surement passes the filter. The gate setting may be selected the same as in NORMAL mode. If the

LCD EL backlight is enabled, then the backlight is turned on each time a measurement passes the fil-

ter. If ten seconds have elapsed since the last successful frequency measurement, then the backlight is

automatically turned off.

CAPTURE MODE

CAPTURE mode is selected by placing both the FILTER and CAPTURE switches in the ON position.

CAPTURE mode is indicated by the flashing CAPTURE annunciator on the LCD display. In this mode

the Scout uses its powerful digital filtering algorithm to capture and store up to 400 unique frequencies

in memory. In addition, up to 255 hits (the number of times a single frequency has been captured) may

be stored for each frequency in memory. In CAPTURE mode the 1KHz resolution gate setting is auto-

matically selected. When a frequency measurement passes the filter it is first compared against all pre-

viously captured frequencies stored in memory to determine if it is a duplicate.