Category: Radio

Build The Best CB Antenna EVER! IMHO. The Half-Wave End-fed is an excellent antenna for CB, best used vertically. The 49:1 transformer is easy to make and affordable. This is a full size antenna with a low take-off angle great for skip and local communications. Wire length usually falls between 4.5 and 4.8m. Starting wire length in feet is 468 divided by the frequency in MHz. Check SWR and cut a little bit at a time. Do not use a metal box or expoxy. Hot glue is ok. Do not use another material than 43. The FT-140-43 can probably take up to 100W SSB, 70W AM/FM. For more power you… Read More

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Testing My Mini 64:1 Half-Wave End-Fed Antenna Transformer. Field test of the Mini 64:1 HWEF transformer on 40m and 20m, with a surprising contact at the end! Who says you can’t use an FT-82-43? You don’t need three 240-size toroids stacked together to make contact, nor do you need hundreds of Watts. Save your money and build something that works well without breaking the bank and is light to carry in a backpack. Version Française: En traitement. Build video: https://youtu.be/6er591dwtl0 Shirts and mugs: https://teespring.com/stores/radio-preppers Help this channel: https://www.patreon.com/radioprepper Twitter: I left Twitter because of censorship issues. Facebook: https://www.facebook.com/groups/radiopreppers Radio Preppers Forum: http://radiopreppers.com DISCLAIMER: The Radio Prepper logo (depicting a microphone)… Read More

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Icom IC 705 Ham Radio Raspberry Pi | Easy PAT Winlink Setup Hello Operators Todays video is a Ham Radio Raspberry Pi tutorial for the Icom IC-705 and eventually other radios. We will be using a new setup script call the Easy Mode setup for PAT Winlink running on a raspberry pi. This raspberry pi project will be the fastest and easiest version of PAT Winlink available, and perfect for someone just learning ham radio basics with a raspberry pi. Where traditional organisations like ARES have focused on EMCOMM (emergency communications) for disaster relief, regular people are increasing their skills and capabilities, by adopting asynchronous modes like Winlink and JS8Call,… Read More

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Winlink Email P2P Asynchronous Ham Radio for Preppers Hello Operators This is the second video in our Winlink Email series, Asynchronous Ham Radio for Preppers (or Ham Radio for Preparedness). In this episode, we will be making a Winlink Peer to peer P2P connection, without internet or any intermediate stations, to send and receive winlink email with another station (OH7T). Teme OH7T and I will be using Vara HF on 80 meters, to make an NVIS range P2P connection between our stations, 275.61 km (172.256 miles), bearing 135.9 degrees. Todays Winlink HF setup is Windows 10 running Winlink express with a Xiegu G90 and Vara HF. In our previous video… Read More

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Portable QRP Ham Radio & PowerFilm Lightsaver Max Hello Operators. Today we are taking about portable power for man portable QRP ham radio. For some time now, I have been testing the PowerFilm Lightsaver Max with a variety of popular portable QRP radios. Often what these portable ham radios are lacking, is a lightweight and reliable portable power supply, which is easy to use, and airplane friendly. The PowerFilm Lightsaver Max is a Hybrid Solar panel and power bank, with built-in 60wh lithium ion battery pack. This is perfect for radios like the Elecraft KX2, KX3, Yaesu FT-817, FT-818, Xiegu G90, X5105, Lab599 Discovery TX-500, and QRPVer Minion. Make sure… Read More

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Refurbishing Batteries With Lithium Ion Phosphate Cells. I bought some cheap Liitokala lithium ion phosphate cells from Aliexpress for my military TRC-372 radio to replace the dead NiCad cells. Whether this was a good choice, time will tell. Beware of the really thin insulation on the cells… Shirts and mugs: https://teespring.com/stores/radio-preppers Help this channel: https://www.patreon.com/radioprepper Twitter: https://twitter.com/Radio_Preppers Facebook: https://www.facebook.com/groups/radiopreppers Radio Preppers Forum: http://radiopreppers.com View on YouTube

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The Retevis RT-24 PMR/FRS UHF Handheld Radio. A quick presentation of the Retevis RT-24 PMR/FRS walkie talkie, which is programmable on UHF and has CTCSS tones. For waterproof versions see the RT-648, RT-29, RT-47 and RT-48. Get in US: https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.amazon.com%2FRetevis-Rechargeable-Handheld-Two-Way-Earpiece%2Fdp%2FB07JC6LQJC%2Fref%3Dsr_1_6%3Fdchild%3D1%26keywords%3Dretevis%2520h777s%26qid%3D1597309617%26sr%3D8-6%26fbclid%3DIwAR2ejOOpLu8k4eMBZ3446IqRp5Y2SR-69BeULMdgpT6nxHocVtrSeHKnYiE&h=AT2tccBTnTuHrvjlArtUBiAObHNSpufuPd41Fy32Sv7YaiahJtkK4Mkn4nXCA9HlPkUeQHK2wLzFlQEPq_wxIfLfsDx_Awmrsrdsvk6ReP3tmgaJcZ4puJtenxLXc2G8f7lUQnX4_syn3VNiYdHInEPW Get in UK: https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.amazon.co.uk%2FRetevis-License-free-Professional-Channels-Earpieces-Black%2Fdp%2FB06VWNRJDY%2Fref%3Dsr_1_3%3Fdchild%3D1%26keywords%3DRetevis%2520RT24%26qid%3D1597306413%26sr%3D8-3%26fbclid%3DIwAR3d3V6q4Yjuosbbwj-ZpMj8bMdMSIr2bp0BlJL6u6BdYR5zHUatS11WcA0&h=AT2tccBTnTuHrvjlArtUBiAObHNSpufuPd41Fy32Sv7YaiahJtkK4Mkn4nXCA9HlPkUeQHK2wLzFlQEPq_wxIfLfsDx_Awmrsrdsvk6ReP3tmgaJcZ4puJtenxLXc2G8f7lUQnX4_syn3VNiYdHInEPW Retevis: https://www.retevis.com Shirts and mugs: https://teespring.com/stores/radio-preppers Help this channel: https://www.patreon.com/radioprepper Twitter: https://twitter.com/Radio_Preppers Facebook: https://www.facebook.com/groups/radiopreppers Radio Preppers Forum: http://radiopreppers.com View on YouTube

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