Hand-held Frequency Counter

FC2002 hand-held frequency counter is a more professional counter, even advanced features such as field strength measurement and auto hold are incorporated. It is compact, truly pocket sized, test instrument designed for ease of use and dependable performance. Supplied as a complete with internal NiCd pack, AC wall charger and 7 section telescopic antenna.

Specifications
 

 
Frequency range
 10 MHz - 3 GHz
 
Weight
 210 g
 
Size
 80 mm high x 68 mm wide x 31 mm deep
 
Impedance
 1 * dual purpose BNC Socket
50 Ohms input for range 1 MHz to 3 GHz
1 Meg Ohm input for range 10 Hz to 50 MHz
 
Case
 Stamped aluminum with black anodized finish
 
Battery
 Internal 4 x AA 600 mAH NiCd pack
 
Power
 9 VDC 300 mA
 
 

 
Features

10 digit Liquid Crystal Display
Hi-Z low range
Filter to prevent display of random noise
Automatic hold
Measures frequency and period
LED back light
Beeper
Low power consumption (Average 6 hour battery life)
Hold switch to lock display
Low battery indicator
Ultra sensitive synchronous detector 16 section bargraph to show RF signal strength
High speed 300 MHz direct counter with 0.1 Hz resolution
4 selectable gate speeds
Controls

Power Switch - This slide switch turns the counter on and initiates a 2 second test of all the LCD segments.
Amp Switch - This slide switch selects either the 1 Meg Ohm high impedance amplifier or 50 Ohm amplifier and prescale.
Range Switch - This should be switched to the 300 MHz position for frequencies between 1 MHz and 300 MHz and switched to the 3 GHz position for frequencies between 10 MHz  and 3 GHz.
Lite Switch - This slide switch turns the LCD back light on and off.
Filter Switch - This slide switch turns the filter on and off.
Function Button - This selects the frequency or period. This button has four settings. One each for displaying frequency or period as these are received, and two settings for automatic  hold of the first frequency or period  captured.
Hold Button - This holds the current display and stops the counter from counting.
Gate Button - This selects the gate or measurement time. A longer gate time allows counting for longer period and results in higher accuracy.
Calibration - The calibration adjustment opening is located on the front  panel of  the  counter. This allows access to the trimmer capacitor that provides about a 10 PPM adjustment range of the time base oscillator. This is not usually necessary but to do so read a signal of an known frequency before adjusting the trimmer for correct frequency display. If you calibrate at 4.1943 MHz or above then the counter will be more accurate.