说明

• PLJ-8LED-H 0 to 60MHz 20MHz to 2400MHZ 2 RF Signal Frequency Counter Cymometer Meter Tester For Radio Electronic Tool Feature: 1 This is a 1 frequency meter, all settings are mechanically kept and can be immediately referred to as when the machine is became on 2 The frequency reference adopts a temperature-compensated voltage-controlled crystal oscillator (2 ppm VC-TCXO) three It adopts a unique gate control formula and exact time set of rules (non-timed interrupt method) four The gate (display refresh) time is 0 second/0 second/1 moment optional, and the frequency value is displayed in real time five Single-ended enter design, three frequency size channels (low channel/high channel/automatic channel) elective 6 Dual intermediate frequency design, intermediate frequency cost and addition/subtraction mode could be preset individually 7 It adopts an eight-bit zero high-brightness digital tube exhibit with 8 levels of adjustable brightness 8 Invalid zero automated blanking, invalid frequency value demonstrate filtering optional, and last bit blanking elective 9 The circuit is simple, the constitution is reasonable, the double button control, and the operation is simple Product parameters: 1 Gate time *0 seconds *0 seconds *1 seconds 2 Measurement channel (high and coffee channels are high impedance) *Low channel Measurement range: 0 MHz ~ 60 MHz Measurement accuracy: ± 100Hz (0 moment gate time) ±10Hz (0 second gate time) ±1Hz (1 second gate time) Low channel sensitivity: zero MHz ~ 10 MHz: greater than 60mVPP 10 MHz ~ 60 MHz: higher than 60mVPP 60 MHz ~ seventy five MHz: now not examined *High channel (64 division) Measurement range: 20 MHz~1 GHz Measurement accuracy: ±6400Hz (0 second gate time) ±640Hz (0 second gate time) ±64Hz ( 1 second gate) High channel sensitivity: 20 MHz ~ 30 MHz: better than 100mVPP 30 MHz ~ 60 MHz: higher than 50mVPP 60 MHz ~ 2: now not tested *Automatic channel: routinely select high channel or low channel consistent with enter signal frequency, identification frequency is 60 MHz If the enter sign amplitude is greater than 60 MHz and the excessive channel can't be mechanically selected, the excessive channel needs to be manually selected for frequency size 3 setting: self reliant twin IF design, the minimum step of IF adjustment is 100 Hz, the IF vary is 0 ~ 99 MHz, and the IF plus or minus mode can be set four reference: 5032 equipment 13 temperature-compensated voltage-controlled crystal oscillator (VC-TCXO) is used, and the frequency steadiness is ±2 ppm 5 Working voltage: DC input: DC 9V~15V (with reverse polarity protection) 6 Working current: Maximum one hundred sixty mA (test conditions: ①DC12V power supply; ②Red digital tube; ③Eight phases of brightness) 7 Number of display digits: Eight-digit LED display, up to eight digits eight Display brightness: Eight-level LED brightness is adjustable, manufacturing facility set to the best brightness nine Dimensions: Length × Width × Height: 125 mm × 25 mm × 21 mm 10 Onboard interface DC IN (power interface): HX2 socket RF IN (signal input): HX2 socket ICSP (programming interface): 2 pin Product list: 1X module 2X Cable

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