Frequency counter kit instructions. The center rack mounting kit is Model No.

Frequency counter kit instructions 72 * 1. It is made with standard components and can be made in a weekend (it took me a bit longer :-) ) EDIT: The code is now availab… Nov 11, 2020 · ️ PORTABLE FREQUENCY COUNTER - Frequency counter Digital mode for DMR radio. 2-12. 1GHz Frequency Counter Crystal Oscillator Tester DIY Kit Meter $5. Since most frequency counters have the same pattern of wires I havent been using the particular brand of F. Specifications: Maximum Count Frequency: 32. com: Industrial & Scientific RST:restart test CH1:channel 1 input CH2:channel 2 input 后面板功能：10M REF INPUT:外部 10M 基准输入 10M REF OUTPU:10M 基准输出 USB:USB 口 STD ADJ:内部 OCXO 频率微调电源开关 DC 插座 rear panel:10M REF INPUT:extern 10M input 10M REF OUTPU:10M output USB:USB port STD ADJ:inside OCXO frequency adjust power switch dc Jan 5, 2001 · Features: Measurable frequency range: 1 Hz -50 MHz; Most commonly used to measure the oscillation frequency of the crystal; Five Accuracy Resolution (eg 0. The Freq-Mite is user programmable, so it's readily adaptable to the IFs in most QRP rigs and is ideal for field operation. 78 +$3. Appendix with test details and schematics and additional notes in the main text of this manual were added in August 2016 by ZL2PD. What is the display resolution of 60MHz Counter kit? 60MHz Counter kit measures input frequency with impressive 10Hz resolution. bborisov567. 1 3. I couldn't find any mention or description anywhere about the Jun 18, 2019 · Crystal Oscillator Frequency Counter Tester Meter, DIY 1Hz-50MHz Frequency Indicator Crystal Oscillator Tester Module Kit with 5 Digits Digital Tube Display Red 3. html implementedin thefirmware soyoucan enter Standard Oscillating Frequency: 4. This frequency counter/crystal tester will make a nice addition the the beginner electronics tool kit. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color 2-12. If you insert a crystal in the header place and hold your hand on the switch while in the “Add” mode, the crystal’s frequency will be saved and it will be added to the frequency value of the next crystal you measure. 8 out of 5 stars 24 2 offers from $1249 $ 12 49 Frequency Counter DIY Kit 10Hz - 250MHz with LCD, MB506, PIC16F628A and open source code I enjoyed building this kit. 110 mm length 3. C4 and C5 values can be between 33pF and 62pF and the crystal frequency can be fine tuned with them. 4 1. Assembly: Assembly was pretty easy by matching up the correct part on the bill of […] Nov 5, 2023 · 【Portable and User-Friendly Frequency Counter Kit】This frequency kit tester kit is easy to assemble with direct-plug components and offers universal USB 5V power supply compatibility, as well as the option for external DC power or 9V battery, ensuring flexibility in usage scenarios. This button has four settings. 7cm Package including： 1 Set of 1Hz-50MHz Frequency Counter Kit Notes: 1. The four modes of operation are Frequency Display, Period Display, Frequency Display with automatic HOLD, and Period Display with automatic hold. 0 1 Review ౹ 7 sold. Designed to measure the Mar 4, 2025 · VINTAGE RADIO SHACK ARCHER PROJECT BOARD DIGITAL FREQUENCY COUNTER KIT 277-111 An unused RADIO SHACK ARCHER PROJECT BOARD DIGITAL FREQUENCY COUNTERRADIO SHACK CATALOG NUMBER 277-111NEW & SEALEDCONTAINS THE CIRCUIT BOARD & INSTRUCTIONS, YOU MUST PURCHASE COMPONENTS TO ASSEMBLE THIS ITEMMade in the USANew old stockHas a bit of a stuffy smell from The frequency counter kit can be used to measure frequencies from 1hz to 50mhz and also check quartz crystals. Find many great new & used options and get the best deals for Digital LED 1hz-50mhz Crystal Oscillator Frequency Counter Meter Tester Kit at the best online prices at eBay! Free shipping for many products! Nov 14, 2019 · DIY Frequency Tester 1Hz-50MHz Frequency Counter Module Crystal Oscillator Tester Module Kit Frequency Indicator with Housing Kit Visit the Walfront Store 3. 1. However, the manufacturer has also thoughtfully provided a pair of pads (marked plus and minus), where you could solder the wires directly to provide the power. 001 µF (102) capacitor Specifications: Material: PCB Color: Red Frequency Range: 1Hz-50MHz Crystal Test Range: About 4MHz-48MHz Size of Assembled Item: About 8 x 5. FREQUENCY COUNTER USER MANUAL 1 1. Find many great new & used options and get the best deals for 1hz-50mhz Crystal Oscillator Frequency Counter Meter Digital LED Pic DIY Kits at the best online prices at eBay! Free shipping for many products! 1Hz-50MHz Crystal Oscillator Tester Frequency Counter DIY Kits Meter w/Case top. If this Kit Cost: $10 Kit Contents: Bag of Parts, Enclosure w/ hardware, Printed Circuit Board, Schematic Diagram, Parts list and Layout page. 059 MHz - With power saving mode to choice, if there is no significant change in the frequency within 15s, the display will be automatically turned off - Easy to install PLJ-8LED Frequency Counter User Operating Manual 1 8-digit LED Frequency Counter Module Model PLJ-8LED-C . but the crystal oscillator was added later in the clones of this frequency counter. 8 GHz. Buy It Now +$7. The Frequency counter has a onboard button which can access a menu to zero the scale, add or deduct an offset in case it will be used in a shortwave receiver. Frequency Counter( Mine Worked Up to 70MHz) Using PIC 16F628A (with Prototype PCB and Built in Crystal Oscillator) for HAM Shacks : After living in the dark age of having no instruments for measuring exotic electrical parameters like frequency, inductance , capacitance for constructing RF circuits ; I finally got the chance of making this simple yet effective counter designed by… Features: Measurable frequency range: 1Hz to 50MHz Measurable signal frequency: up to 30V Can measure most commonly used crystal of oscillation frequency Five-digit accuracy resolution Automatic range switching Programmable frequency setting for measuring radio transceiver equipmentSelectable power-saving mode, if there is no significant change in 15 seconds automatically turn off the display RACK INSTALLATION 2-9. Sep 6, 2023 · Kit of the month (I guess). 36 * 1. Name and parameters Photo Quantity Note 1 Resistor 220R 1% 0. 5mm / 2. LED frequency tester kit can measure the frequency range from 1 Hz to 50 megahertz (1Hz-50MHz), can measure the oscillation frequency of most common crystal oscillators, and measure equipment such as radio transceivers Jul 7, 2024 · Specifications: Color: Dark Green Material: PCB + FR4 Power Mode: 9V Battery (Not Included) Display: 38 * 16mm LCD Display Item Size: 60 * 33 * 26. 1 22 Reviews ౹ 109 sold Customer Reviews (22) Specifications Description Store More to love 2. Sep 1, 2020 · Frequency Counter, l Oscillator Tester Module DIY Kit Crystal Oscillator Module, Frequency Counter, 1Hz-50MHz for Measure Equipment Brand: AMONIDA 1. 45 there is nothing to loose and if I could make it work it would be handy for tes Ranjaner 1Hz-50MHz Frequency Counter Kit, DIY Module Board for Oscillator, Crystal Measure Frequency Meter Accessories The kit comes without instructions or even A quick review of the Amazon frequency counter that I purchased to check some of the commercial radios that I have for the frequencies that are programmed in Apr 13, 2020 · The main features of the frequency counter are: • Frequency range 1 Hz 50 MHz ( in fact ,it can work up to 78 MHz ) • Four or five digits resolution (display for example x. It comes with a transparent acrylic enclosure and is simple to assemble. I apologize for the less than ideal soldering footage, I accidentally deleted the overhead s Jun 27, 2021 · Author Topic: China frequency counter kit - not working at all (Read 2626 times) 0 Members and 1 Guest are viewing this topic. It can test crystals from 4MHz to 48MHz. Find more , and products. Instructions for installing units in the rack mount are supplied with the rack mounting kit. Two kits are available for the user who desires to mount his counter on a rack. 767 MHz Feb 18, 2020 · Specification: Condition: Brand New Item Type: Frequency Meter Module Material: Plastic Color: Red Frequency Measurement Range: 1Hz-50MHz PCB Size: Approx. 1GHz Frequency Counter Crystal Oscillator Tester DIY Kit Meter 1Hz-50MHz 1MHz-1. Kit 10851A permits one counter to be mounted in the center of a rack, while Kit 10852A allows the user to mount two counters, side-by-side on a rack. 7)GHz on channel B. Frequency counter DIY kits typically include all of the necessary components and instructions for building the frequency counter. 1 µF (104) capacitor, 1 x 0. This document describes the construction of a small frequency counter with a PIC microcontroller and 7-segment displays. The 8-digit display always reads out di- Jan 2, 2019 · This kit is a dual-purpose pocket test equipment, an affordable frequency counter (1 Hz à 50 MHz) and crystal tester. May 2014 . 059 MHz); Automatic range switching, without artificial switching; Modified programmable frequency settings for the measurement of radio tra This video is about building and modifying a PIC frequency counter and crystal tester in kit form sold on the internet under many names, for example "1Hz-50M The kit arrived promptly from the one of my regular Chinese vendors. This video is just a real-time registration of the entire build. 3 x 3 x 2 inches 4. Buy DIY Kits RF 1Hz-50MHz Crystal Oscillator Frequency Counter Meter Digital LED tester meter at Aliexpress for . This DIY kit of parts allows May 18, 2020 · Crystal Oscillator Frequency Counter Tester Meter, DIY 1Hz-50MHz Frequency Indicator Crystal Oscillator Tester Module Kit with 5 Digits Digital Tube Display Red 3. 1M, parallel to 10pF; Current Consumption: 50mA (7-9V input) Display: Digital LED; PCB Size: 80 x 58mm (3. com 3/5 www. Look at the measuring range: 1 Hz to 50 MHz. User Manual V 1. I eventually got a cymometer off eBay for not too much. Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. DL4YHF2 Frequency Counter & Crystal Tester Description: The DL4YHF2 Frequency Counter & Crystal Tester is sold as a kit and requires some experience in soldering skills. • Automatic range switching with different gate times • Optional addition or subtraction of a frequency offset (programmable) Dec 6, 2024 · A Frequency Counter - from mHz to 5. This document provides instructions for assembling and using a DIY frequency counter/crystal tester kit. net/store/frequency-counter-diy-kit-module. Jul 29, 2023 · MiOYOOW Soldering Practice Kit, DIY PWM Adjustable Signal Generator Voltage Current Tester Electronics Project Kit, LED Display Multifunctional Frequency Counter Soldering Kit for Learning: Amazon. It includes a parts list, soldering guide to assemble the circuit board, wiring guide to connect the power source and crystals to test, and features guide explaining the different modes for measuring, adding, subtracting and offsetting frequencies. May 14, 2019 · Amazon. 5765 MHz, 11. Parts they left out. stable digits of reading. Customer Reviews (1) Documentation and assembly instructions Features and operation (this kit does anything you could want in a frequency counter for ham use) Cost (feature packed for the money) So what's not to like? 1. com: Industrial & Scientific 1hz to 50 mhz DIY Frequency Counter kit build and demonstration. 0 . ️ FREQUENCY COUNTER METER RANGE - Frequency range two select : 2MHz-200MHz / 27MHz -2800MHz. I recognised the circuit almost immediately - It was a slightly modified version of the frequency counter designed by DL4YHF. 04in Item Weight: 45g / 1. Assembly instructions are included and guide the user to identify components, check them with a multimeter, and solder the circuit board in steps from lowest to highest profile Jul 20, 2022 · About this item . This little device is a frequency counter and crystal frequency tester. The products also provide special features of high resolution and sensitivity for value reading expediency. If the coarse measured frequency is way below 1 MHz, the prescaler is turned off to get the best possible frequency resolution. Will plug in and work for most radios with the FACTORY “frequency counter plug” on the back Jan 29, 2020 · Those $10 frequency counter kits are junk in my experience. Regular Contributor; Posts Aug 9, 2013 · Ive been searching the internet for days upon days searching for some sort of instructions on hooking up a frequency counter to my Cobra 148 GTL with a front mounted mic hookup. vintage radio shack archer project board digital frequency counter!kit 277-111 nos!!a terrific collectible - unused radio shack archer project board digital frequency counter!radio shack catalog number 277-111 new & sealed contains the circuit board & instructions, you must purchase components to assemble this item made in usa a rare find new old stock!!!add to your collection!!! This way when input frequency is below 1Mhz the resolution will be 1Hz. [1] The frequency counter measures from 1Hz to 50MHz with 5-digit resolution and automatic range switching. 15 x 2. [3] Oct 8, 2017 · Similar kits available without the case and much cheaper, which may be a better choice if your intending to use it as a frequency counter in a larger project. 99 delivery. Opens in a new window or tab. The instructions are quite sparse and there Frequency Counter kit Illustration 1: The frequency counter, driving a 2x16 OLED display In this long video I have a go at constructing a frequency counter kit with no instructions supplied, just a board and a bag of components and a PIC microcon DL4YHF2 Frequency Counter & Crystal Tester Description: The DL4YHF2 Frequency Counter & Crystal Tester is sold as a kit and requires some experience in soldering skills. 000000 Hz to 1. Find many great new & used options and get the best deals for DIY Kits 1hz-50mhz Crystal Oscillator Frequency Counter Meter Q5q8 at the best online prices at eBay! Free shipping for many products! Nov 6, 2018 · Description: - Frequency range: 1Hz-50MHz - Used for measuring the oscillation frequency of the crystal - 5 accuracy resolution, such as 0. Instructions do not explain the function of the big yellow button, but gather this opens functions for setting and clearing frequency offsets (not something I need to use yet). “Add”: Save the previously measured frequency so you can add it to another frequency later. 0050 kHz, 4. Dec 6, 2024 · A Frequency Counter - from mHz to 5. This video shows how to make a frequency counter (frequency meter) using an electronic DIY kit. Selectable power-saving mode: the display automatically turns off within 15 seconds if ther Apr 13, 2018 · Every frequency counter has some sort of input amplifier and the Internet is full of designs ranging from simple two-transistor FET amplifiers to multi-component designs often using the popular MC10116 ECL triple line receiver. The assembly instructions describe the use of 2 and 5 pin headers for input, power, and band selection connections. A packing slip still in the box showed it was purchased from a company called S&S Engineering out of Maryland in 1993. Specification Frequency range: 1 Hz - 50 MHz Used to measure the oscillation frequency of the crystal. After having soldered the IC socket, place all twelve resistors found in the kit according to their matching schematics named “1K”, “10K” and “100K” on the board (Refer to Appendix for a guide on reading resistor values). But this frequency counter is unlike most frequency counters available today except in high end, high cost models. May 3, 2020 · Mostly at 8X until I give it power and the fire happens. xxx MHz, or xx. They may be suitable for hobbyists, students, or professionals who want to learn about electronics or build their own frequency counter. baidu. 3(2. com/share/home?uk=369802936#category/type=0 *This is a brief overview and demonstration video of how t A unique combination of frequency counter and RF power meter in a single package. After assembling and powering 60MHz Frequency Meter / Counter kit LCD display is blank. htmlThe electrical circuit based on PIC16F628A microprocessor and 1/64 configured MB506 P Nov 1, 2024 · Product Name: Specifications: DIGITEN LCD Digital Counter : 1. The document provides instructions for assembling a DL4YHF2 Frequency Counter & Crystal Tester kit. Testing Crystal Oscillator Frequency Counter Kit It is possible to power this circuit through the barrel socket provided. , 0. 89. the original frequency counter had a preamplifier for the input. Frequency Counter Kit Instructions The best instruction I can give when building this board is to install one component at a time. D. 91 * 4. 21 Ounces Jan 17, 2016 · Instructions for the setup and operation of Mini-Circuits' integrated frequency counter & power meters (hardware & software) Programming Manual: A5: Full programming instructions for automation via a range of control methods: Ethernet control API using HTTP / Telnet (all operating systems) Nov 3, 2021 · Heathkit IM-4100 Frequency Counter – Assembly Instructions (Partial) by MD0MDI 3 November 2021 by MD0MDI 3 November 2021 373 views www. Weighs 3. 0 out of 5 stars 4 2 offers from $1659 $ 16 59 Sep 24, 2020 · #021A good selection of test gear and tools here:https://kaiweets. Adjust LCD contrast by turning P1 trimmer counterclockwise, then turn it slowly clockwise until text is shown on LCD. Counting continuous wave signal comes from Two-way Radio. This device is also based on the PIC16F628A allowing users to remove and use the microchip for future uses. 54oz Package Size: 11 * 6 * 3cm / 5. You can find some outline details of the frequency counter section on his website. If it is a resistor, then measure it to make sure it is the correct value and working. 28 inches) Input Socket: BNC; What Makes This Kit Unique? This Frequency Counter DIY Kit is engineered to simplify frequency measurements for electronics Apr 8, 2016 · While checking out the source of all things economical I came across this frequency counter kit and crystal tester. html implementedin thefirmware soyoucan enter Sep 1, 2020 · 1Hz-50MHz Frequency Counter, Oscillator Module, l Oscillator Tester Module DIY Kit for Measure Equipment Oscillators: Amazon. www. There are some minor instructions on general soldering and usage. Supports 0 to 99999 count range 2. WQbc45IA3aUse coupon code LE10 and help support the channel!Frequency C DIY Digital LED Frequency Counter 1Hz-50MHz USB 5V Crystal Oscillator Meter Tester Kit 1. VHF & UHF frequency measurement, useful for the CB amateur Ham Radio. 3 GHz with 1 second gate The newer, open sorce edition up to 250MHz now available here:https://www. Nov 16, 2016 · 1 x 100 kΩ, 2 x 10 kΩ, 10 x 1 kΩ resistors; 4 x 1N4148 diodes; 3 x 22 pF ceramic capacitors; 1 x 0. 25W http://www. Y FREQUENCY COUNTER/CRYSTAL TESTER. 1x2. com: Jiayouy 1Hz-50MHz Crystal Oscillator Tester Frequency Counter Tester Measuring Meter Case Durable DIY Led Kit : Industrial & Scientific D. The kit comes with no instructions, but most everything one needs can be found on the internet. Brand New. No sound as I have nothing to say, Plug in parts solder them, Power it up. I did not expect much, but for $7. 34 to $14. 45 and they insisted on shipping it for free. as an event counter. It has five standard 7-segment displays. Banggood FA-2 Frequency Counter Kit Meter User Manual Author: 郑兆祥 Subject: FA-2 Frequency Counter Kit Meter Keywords: Banggood,FA-2, Frequency Counter Kit Meter, User Manual Created Date: 2/10/2022 2:24:55 AM 1 Bill of materials for 50MHz frequency counter KIT (from EZM Electronics studio) NO. 059 MHz). Apr 7, 2017 · review of this frequency counter kit clone, as seen in this yt video. store/frequency-counter-diy-kit-moduleDIY Frequency Counter USB Modul DIY Digital LED Frequency Counter 1Hz-50MHz USB 5V Crystal Oscillator Meter Tester Kit 4. 30 * 1. the price was only $7. $7. [2] It allows the user to add or subtract an offset frequency through a programming mode to display the actual frequency. 5MHz +/= 10ppm Dimmer Control Required Power Source: 8-13. Pulse Counter - adjustable number of pulses per count, external gate input. A soldering iron with a needle point tip would be very helpful here. The kit requires soldering skills and measures frequencies from 1Hz to 50MHz. Specification: Condition: Brand New Item Type: Frequency Meter Module Material: Plastic Color: Red Frequency Measurement Range: 1Hz-50MHz PCB Size: Approx. May 29, 2023 · Specification: Condition: Brand New Item Type: Frequency Meter Module Material: Plastic Color: Yellow Frequency Measurement Range: 1Hz-50MHz Measurable Frequency: Up to 30V Package List: 1 x Bag of Frequency Meter Module DIY Kit Frequency Range: 1Hz-75MHz; Resolution: Maximum 1Hz; Input Impedance: 1. 1in Package List: 1 x Bag of Frequency Meter Module Parts DIY Kit 1Hz-50MHz Crystal Oscillator Tester Frequency Counter DIY Kits Meter w/Case top. Dedicated Pulse Counter can be used in many ways, e. Help support the channel d High Resolution Frequency Counter: This instructable shows a reciprocal frequency counter capable of measuring frequencies fast and with reasonable precision. The 2-position Frequency Range switch and the dual time Gate switch make this Counter extremely versatile. C in my search (Connex Fc-390) but all I keep coming up with Dec 31, 2024 · I've put together two "signal gen stacks" with one generator, one voltmeter, and one frequency counter each: B&K 3020 Sweep/Function Generator; B&K 1820 Universal Frequency Counter; B&K 2830 Digital Multimeter; B&K 3010 Function Generator; B&K 1805 80 MHz Frequency Counter; B&K 2831 Digital Multimeter Jan 6, 2023 · Reprogram the counter's prescaler so the divided input frequency is below 1 MHz (which is the maximum input frequency for the hardware counter, if the PIC is clocked with 4 MHz). The M3 FPM-1 frequency counter uses reciprocal counting technique to develop true 7 digit resolution from 2. 01Hz to 120MHz on channel A, and 50MHz to 1. The Model 1920A may be center-mounted in a standard 19-inch rack when supplied with the appropriate 1920A Section 2 Operating Instructions rack mounting kit. . The pcb is well labelled and makes it very easy to assemble it. 1in Package List: 1 x Bag of Frequency Meter Module Parts DIY Kit This frequency counter kit, also known as 1 Hz to 50 Hz Crystal Oscillator Tester, and DIY Digital LED 1 Hz to 50 Hz Crystal Frequency Counter Kit, is a tool that measures the frequency of quartz crystal modules usually used by HAM Radio enthusiasts and anyone who uses crystal modules in the field of electronics. ) A PIC-Based Morse Frequency Counter Thanks for purchasing the Small Wonder Labs / 4SQRP Freq-Mite, a Morse-readout frequency-annunciating device. Automatic range conversion, without human intervention. g. HOLD BUTTON This button will stop the counter from counting and keep the current display unchanged. View and Download Abra AK-130 manual online. 50 shipping This button selects the measurement mode of frequency or period. I got 2 and neither one ever worked, let alone worked right. 4 out of 5 stars 3 ratings DIY Kit Digital LED Frequency Counter 1Hz-50MHz Crystal Oscillator Meter Tester. Five accuracy resolutions (e. Buy It Now +$3. Documentation and assembly instructions Features and operation (this kit does anything you could want in a frequency counter for ham use) Cost (feature packed for the money) So what's not to like? 1. rhelectronics. 8 out of 5 stars 23 2 offers from $1338 $ 13 38 Mar 9, 2024 · Building and testing electronic DIY kit "Frequency counter". com/DIY-Frequency-Tester-1Hz-50MHz-Crystal-Counter-Meter-With-Housing-Kit-p-1063307. it seems that the frequency counter circuit is good, but the crystal oscillator circuit is Feb 7, 2024 · This time I'm building a frequency counter kit which I bought cheaply on AliExpress. The 5383A Frequency Counter is built to be portable, and may be used at any testbench position. *MANUAL AND DOCUMENTATION HIDDEN HERE:http://pan. 18in Display: Digital 0802 LCD Temperature: When operating: 0~40°C, when stored: -30~60°C Working Oct 8, 2017 · DIY Frequency Tester 1Hz-50MHz Frequency Counter Module Crystal Oscillator Tester Module Kit Frequency Indicator with Housing Kit 3. xxx kHz, x. I. Dimension 5. 3. & was intended for amateur radio use. The concurrent oscilloscope trace is in approximate agreement with the frequency counter kit reading. The center rack mounting kit is Model No. item 2 1Hz-50MHz 1MHz-1. 80x53mm / 3. 1 out of 5 stars 4 ratings This composite image above summarizes an exercise in which the frequency counter displays the output of a 555 and test RC. xx MHz). More details can be found with this Xtal-Tester-Instructions PDF file. as a substitute for the preamplifier circuit. 0 2 Reviews ౹ 8 sold Customer Reviews (2) Specifications Description Store More to love One of the items from the KB1SH collection of parts I bought at Hamcation was an unassembled frequency counter kit. AK-130 cash counter pdf manual download. The frequency range can be increased to the 300 MHz range, or even higher by using a prescaler. MOO-200-625. T Today we build another basic through hole component kit, an ideal project for beginners. Y Frequency Counter/Crystal Tester Kit 1Hz-50MHz with Acrylic Housing. 5 x 0. banggood. Channel C (Pulse Counter). PRODUCT INTRODUCTION The intelligent counters are measuring frequency and period from the range of 0. com?sca_ref=1358197. 8V Similar to Galaxy FC347 Specifications: Length: 3-1/3" Width: 3-1/2" Height: 1-1/3" Please message if you are not sure if it is compatible to your radio. The measured (or true) value is compared to the frequency computed from marked R and C values. The Heathkit Model IM-2410 Digital Frequency Counter is an easy-to-use frequency counter that can accurately measure frequencies from 10 Hz to 225 MHz. The most important part for the accuracy of the frequency counter is the time base setting circuit – crystal resonator X1 and capacitors C4 and C5. nbiqf qhlllx uuua xoamdk wuddo undyq qyxo rhquzz ghecr wdahhu tpcatc tqum zrprbq kftzk azn