How to Build a Common Mode Choke - CMC скачать в хорошем качестве

How to Build a Common Mode Choke - CMC

Step by step build of a Common Mode Choke. How to keep RF off of your coax shield and out of your shack. 👍 Support the Budget Ham Radio channel - https://buymeacoffee.com/budgethamradio 👍 Be sure to Like, Share, Comment, and Subscribe. 👉 Like this video? For more videos similar to this, click here -    / @budgethamradio   👉 All my videos on how to build 49:1 matching transformers -    • Build 49:1 UnUn / baluns for your EFHW   👉 For my other how to videos featuring baluns, ununs, chokes, or filters -    • Build baluns, chokes, ununs, filters ...   👉 For my other how to videos on DIY homemade antennas -    • Homebrew Antennas and equipment   👉 For my other videos on how to use the NanoVNA -    • Using the NanoVNA   73's Jerry KM4ZKB A list of links is provided below if you would like to purchase anything seen or mentioned in this video. If you buy through these links I will earn a small commission on each sale which will help to support the channel to provide more videos. It will not affect the price you pay. Amazon Affiliate Links FT240-43 Ferrite Core - https://amzn.to/4gkqkiQ FT140-43 Ferrite Core - https://amzn.to/4fXAG8G RG-316 50ohm coax 16.5ft - https://amzn.to/4gj6sMW RG-316 50ohm coax 50ft - https://amzn.to/3ZopjzB SO-239 Bulkhead connectors - https://amzn.to/3VnvZNk Cutting board - https://amzn.to/4giFftR Local hardware store items: Ring Terminals Hillman 7755 6/32" 1/2" bugle head screws and nuts NanoVNA-H4 - https://amzn.to/492qZTG SMA Male to SO239 UHF Female - https://amzn.to/3Z7d8a9 SMA Female to Female Barrel Connector - https://amzn.to/3ZmllIK Eco-worthy 20ah LiFePO4 - https://amzn.to/4egqRRH Eco-worthy 30ah LiFePO4 - https://amzn.to/4fEVscr Eco-worthy 50ah LiFePO4 - https://amzn.to/3YBOJcB Battery Charger 20ah - https://amzn.to/3AFj3Li (works with multiple battery types and sizes) Battery Power Meter Analyzer - https://amzn.to/4fWHT8C Antuner - Antenna Tuner Power SWR Meter - https://amzn.to/3NXq2Cn Goture 21 ft Carbon Fiber Pole - https://amzn.to/4hGZiDO BNTECHGO Silicone Wire - https://amzn.to/3CCqrYK Carabiner S-biner Clips - https://amzn.to/3O5rbI1 BNC Female to Dual Banana Female - https://amzn.to/3NZmT52 SO-239 PL-259 to BNC Male Adapter - https://amzn.to/3YU4BIG Mueller Clips, 10a - https://amzn.to/4elgThJ Male/Female Bullet Connectors - https://amzn.to/4hGW9DU Crimping Tool - https://amzn.to/3Z8L2eT Wire Stripper with crimper - https://amzn.to/4ep91vO Mirror Mount Jaw Clamp - https://amzn.to/3YVMlP6 SO-239 STUD MOUNT for Jaw Clamp - https://amzn.to/3Ci4ldH Rope Pulley - https://amzn.to/3O1b4eP Paracord - https://amzn.to/3O3vNP3 Wireless Microphone - https://amzn.to/3CJBcZd Thanks for watching! Chapters 00:00 Intro 00:49 Start build 01:28 Parts used in build 05:22 Parts List 07:15 Purpose of Common Mode Choke 08:34 Test rig setup 09:57 Test coax and show how turns affect choke 13:31 Winding the choke 17:51 Testing the choke 20:44 Prepare and mount choke to plastic 27:33 Solder connections 33:40 Test completed choke 34:10 Test results 36:12 Hot glue to protect coax connections 38:34 POTA Park Activation 40:56 Install choke 41:39 Antenna Resonance in 20m configuration for 10m? 42:32 QSO's on 20m 44:22 QSO's on 17m 47:48 Outro 👍 Support the Budget Ham Radio channel - https://buymeacoffee.com/budgethamradio 👍 Don't forget to Like, Share, Comment, and Subscribe. #commonmodechoke #hf #hamradio #cmc #rf #balun