Hand-Held Smart Radio Frequency Digital/Analog Frequency Counter

A compact, truly pocket-sized, versatile test instrument designed for measuring any digital, on/off keying or analog signal on frequencies between 30 MHz and 2.8 GHz. Supplied as a complete set with internal NiCd pack, AC wall charger and 7 section telescopic antenna.

Features of the SC-1PLUS Hand-Held Frequency Counter

• 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)

Specifications

• Impedance: 50 Ohms (BNC Socket) VSWR less than 2:1
• 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
• Timebase: Less than 1 PPM at room temperature
• Weight: 210 g
• Size: 80 mm high x 68 mm wide x 31 mm deep
• Case: Stamped aluminum with black anodized finish
• Battery: Internal 4 x AA 600 mAH NiCd pack
• Power: 9 VDC 300 mA

Controls

• SQL Knob - This knob turns the RF counter on and 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 30 MHz and 0.8 GHz and 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 - 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 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.

Warranty

• Circuit Specialists, Inc. guarantees the RF counter and its accessories for one year against defects in manufacture. This warranty does not cover items that have been modified, subject to unauthorized repairs, misuse or abuse. This warranty does not cover damage caused by excessive power levels applied to the signal input.