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36536-TE
7-digit LCD Frequency Counter Module
PLJ-0802-A
V 1.0
2014 年 8 月
Information including Links and Code (Software) Supplied or Referenced in this Document is
supplied by MPJA inc. as a service to our customers and accuracy or usefulness is not
guaranteed nor is it an Endorsement of any particular part, supplier or manufacturer.
Use of information and suitability for any application is at users own discretion and user
assumes all risk.
All rights are retained by the Owners/Author(s)
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Summary of Contents for Sanjian Studio PLJ-0802-A
- Page 1 36536-TE 7-digit LCD Frequency Counter Module PLJ-0802-A V 1.0 2014 年 8 月 Information including Links and Code (Software) Supplied or Referenced in this Document is supplied by MPJA inc. as a service to our customers and accuracy or usefulness is not guaranteed nor is it an Endorsement of any particular part, supplier or manufacturer.
- Page 2 36536-TE CONTENTS Precautions ..................1 Overview ..................2 Technical Parameters..............3 Operation ..................4 PRECAUTIONS Two XH2.54-2P 20cm cables are included in the package. Please note That these 2 connectors are keyed in reverse to each other. Power: Red to + Symbol on board, Black to - Symbol Signal: Red to Symbol on board.
- Page 3 36536-TE OVERVIEW PLJ-0802 intelligent frequency meter is a frequency measuring instrument specially designed for embedded applications. It's small, simple and reliable. Mainly used for DIY transceivers to display frequency value, and can also be used for conventional frequency measurement. Main features of this frequency meter are as follows: Ø...
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Page 4: Technical Specifications
36536-TE TECHNICAL SPECIFICATIONS 1. GATE TIME 0.64sec 2. CHANNEL MEASUREMENT PERFORMANCE (CHANNEL LEVEL HIGH IMPEDANCE) Measuring Range: 1 MHz ~ 1.2 GHz Accuracy: ± 100Hz Channel sensitivity: (HM8134-2 Test Signal Generator) Frequency (MHz) mV RMS Frequency (MHz) 1000 1100 1200 mV RMS 3. -
Page 5: Display Area
36536-TE OPERATION AND USE 1. MODULE ARRANGEMENT and MOUNTING DISPLAY AREA 2. USING THE MODULE (A) PREPARATION Please check the power supply voltage (DC 9V-12V) and confirm the power supply polarity before use. The power supply circuit in the module has a series diode fitted to prevent operation when the power supply is inadvertently connected with reverse polarity. -
Page 6: Menu Structure
36536-TE 3. MENU STRUCTURE page 5... - Page 7 36536-TE 4. SELECTION OF IF FREQUENCY 1. One of two IF frequencies may be selected by using pin 4 of the ICSP programming interface. If pin 4 is pulled High or left floating, then the first IF frequency is used. If pin 4 is pulled to ground, then the second IF frequency is selected.
- Page 8 36536-TE 5. Meausurment Connection 1. Hard Wired: Connect Test Meter to the signal measurement point with an appropriate test cable. Direct connection to Transmitter antenna port requires impeadence matching & may require the use of attenuator(s). Excessive signal will damage meter. 2.