|   | SPECIFICATIONS  | 
Frequency range:  |   | 30 MHz - 2,8 GHz  | 
Sensitivity:  | less than 5 mV | 
Max. input:  | 15 dBm | 
Resolution:  | 10 KHz for digital Signals or On/Off Keying 1 KHz for Analog Signals | 
Size:  | 80 mm high x 68 mm wide x 31 mm deep | 
Weight:  | 210 g | 
Impedance:  | 50 Ohms (BNC Socket) VSWR less than 2:1 | 
Case:  | Stamped aluminum with black anodized finish | 
Battery:  | Internal 4 x AA 600 mAH NiCd pack | 
Power:  | 9 VDC 300 mA | 
Timebase:  | Less than 1 PPM at room temperature | 
|   | 
FEATURES  | 
- 7 digit Liquid Crystal Display
 - Frequency counter for digital, on/off keying and analog signals
 with a minimum pulse width of 250 uS - Ultra sensitive synchronous detector - 16 section bargraph to
 show RF signal strength (-35dBm to 0 dBm) - Two range positions - the 1 GHz position for frequencies between
 30 MHz and 1 GHz and the 2,8 GHz position for frequencies between 500 MHz and 2,8 GHz - Squelch adjustment for input signals
 - Hold switch to lock display
 - Low battery indicator
 - Vibrating alert
 - Low power consumption (Average 5 hour battery life)
 - Supplied with NiCd pack, AC wall charger and telescopic antenna
 (143 MHz to 460 MHz) 
  | 
CONTROLS  | 
|   | SQL KNOB - This knob turns the RF counter on the tunes the squelch up or down to set the signal strength for reception. RANGE SWITCH - this should be switched to the 1 GHz position for frequencies between 30MHz and 0.8GHz, switched to the 2.8 GHZ position for frequencies between 500 MHz and 2.8 GHz. HOLD BUTTON - This holds the current display and stops the counter from counting. CALIBRATION - This 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 a 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. VIBRATION Switch - This switch selects the tone or vibration alert output. 
  |