Building The K6ARK End-Fed Half-Wave EFHW QRP Antenna Kit.
These antennas are very practical for portable operations and even though the FT-50-43 toroid is pretty small I believe this antenna will perform well enough for low power QRP operations. Buy me a coffee at https://ko-fi.com/gilgsn K6ARK: https://k6ark.com Shirts and mugs: https://teespring.com/stores/radio-preppers Help this channel: https://www.patreon.com/radioprepper Send Bitcoins to: bc1qc5jq4dxt7359sh80lkv9v8rlsgnh322hmn6xyc Facebook: https://www.facebook.com/groups/radiopreppers Radio Preppers Forum: http://radiopreppers.com Subscribe on my alternate platform: https://odysee.com/@RadioPrepper:d DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. ... https://www.youtube.com/watch?v=L5WR0vdkmOU
After breaking my Nagoya NL-770S VHF UHF antenna I bought two replacements and checked the SWR after installation on my Land Cruiser 70. The antenna was spot-on right out of the box, so not much to show, but the procedure is pretty simple. I suggest having a look at the Nano VNA antenna analyser for this, or using a regular VHF SWR meter.
Nagoya NL-770S on Ebay, or the longer NL-770R:
https://www.banggood.com/custlink/DmKdcAfUat
Nano VNA: https://www.banggood.com/custlink/DmKYJnwkfA
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Radio Preppers Forum: http://radiopreppers.com DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. .
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...
https://www.youtube.com/watch?v=Hm8R6hrvEE4
Hight Frequency, 3 to 30MHz can also be used for local communications. I want to explore this subject a little more in the future with smaller radios than the two military models I used here. HF goes through vegetation and various materials better than VHF and much better than UHF. Ask me which radio I would take with me for a jungle trip and I will say an HF radio any day. We don't have jungles here but a thick pine forest would be a challenge to get a signal out of, except with an HF radio on a low band, 40 or 80m.
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Music: bensound.com
DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests.
...
https://www.youtube.com/watch?v=3w_Dj1Mx3sA
The SWL SW+ great Morse code transceiver has been brought back by Midway Electronics! Please do not try to contact Dave Benson, he is retired. Please see: https://www.patreon.com/radioprepper DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. .
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...
https://www.youtube.com/watch?v=PPiQKD_mEzU
Testing this concept with a 49:1 half-wave end-fed transformer and the Weber MTR. Can you spot the big mistake at 6:15? That will teach me to double check everything before potting anything in epoxy! Help me build another one: https://www.patreon.com/radioprepper DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. .
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...
https://www.youtube.com/watch?v=2NHAKNFpk8g
I just built a new QCX on 30m, into a Hammond 1590BB case, perfect fit. Some reflections on bands for prepping and three short QSOs using the Chameleon Hybrid Micro and whip. https://www.patreon.com/radioprepper DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. .
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...
https://www.youtube.com/watch?v=WAXg-4ZoUZ8
6m FM QSO in French... Ne pas utiliser la bande des 6m, c'est peut être, un jour, la perdre... Petit QSO entre L'Icom IC-705 de Jéremy au Col de Vence, le FT-817(nd? ou 818?) de Gérald à Nice, et mon VRM5080 de la plage d'Antibes (Siesta).
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Rhino Rescue 15% off: rhinorescuestore.com/RADIOPREPPER coupon RADIOPREPPER
Meashtastic RAK starter kit (pick 19007+4631 Arduino): https://rakwireless.kckb.st/radioprepper-e3v
Get a Meshtastic HELTEC node: https://s.click.aliexpress.com/e/_Deq7dYz
Meshtastic RAK Base Board: https://rakwireless.kckb.st/radioprepper
Meshtastic RAK4631: https://rakwireless.kckb.st/radioprepper-qoo
Meshtastic Lilygo T-Beam: https://s.click.aliexpress.com/e/_Dlrudip
Meshtastic antenna: https://s.click.aliexpress.com/e/_Dnqt9Vb
Meshtastic LIPOs: https://bit.ly/48QZriF
Meshtastic Heltec V3 Bender case STL: https://bit.ly/3T3wGZQ
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DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests.
...
https://www.youtube.com/watch?v=2e_69rnK7Ik
Dans cette vidéo, je vous montre comment établir un réseau de communications privé, facilement, sans nécessiter de licence, accessible à tous, avec Meshtastic, de manière abordable. Découvrez comment cette solution innovante peut vous permettre de rester connecté(e) dans diverses situations, que ce soit en plein air, lors d'événements ou en cas d'urgence. Rejoignez-nous pour explorer les possibilités offertes par Meshtastic et libérez-vous des limites des réseaux traditionnels de communication.
English version: https://youtu.be/OFvK585guZw
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Meshtastic RAK4631: https://rakwireless.kckb.st/radioprepper-qoo
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DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests.
...
https://www.youtube.com/watch?v=B57CAPJuVL8
Batteries have come a long way since the days of Cadmium-Nickel and Lead-Acid. Modern chemistries however require strict charging and discharging protocols for safety. Here I show what I use to power my radios. Make sure you consult the manufacturer's recommendations before using any battery cells.
EBL AA cells & charger: Amazon.fr : https://www.amazon.fr/dp/B085C1G3LM
EBL AA cells & charger: Amazon.com: https://www.amazon.com/dp/B083ZMYF55
18650 charger: https://s.zbanx.com/r/OwLINr28hMDc
18650 cells: https://s.click.aliexpress.com/e/_DkEm3PT
Liitokala 32700 cells: https://s.click.aliexpress.com/e/_DCI9nLT
LifePO4 4S BMS: https://s.click.aliexpress.com/e/_DkA84aH
18650 3S BMS: https://s.click.aliexpress.com/e/_DCFd3OZ
Wondom solar MPPT 18650 charger: https://s.click.aliexpress.com/e/_DdyeiXr
Wondom 18650 MPPT charger video: https://youtu.be/CdudCj-29GI
Wondom 18650 MPPT charger 3D box: https://www.thingiverse.com/thing:3812201
uSDX by DL2MAN: https://s.click.aliexpress.com/e/_Ddt98XJ
LIPO charger: https://s.click.aliexpress.com/e/_DDQeIhL
Nitecore chargers: https://s.click.aliexpress.com/e/_DBgYQuv
Charging leads: https://s.click.aliexpress.com/e/_Ddzw0UD
BC-4S15D charger: https://s.click.aliexpress.com/e/_Dlbssnf
My power supply: https://s.click.aliexpress.com/e/_DlmK9Qv
LIPO alarm: https://s.click.aliexpress.com/e/_DCX0K7R
LIPO 7S 10Ah: https://s.click.aliexpress.com/e/_DFuW3Jj
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DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests.
...
https://www.youtube.com/watch?v=ztCz6xB-oZo
Since my 6m Delta Loop seems to work pretty well I decided to build one for the 30m band to be used with my Spiderbeam 12m mast. Unfortunately I cut it too short. The balun works well. I need to try a quarter wave of 75 Ohm coax instead, just for testing... Note that fed a one lower corner polarisation is vertical. Stay tuned for part two...
Get more content and help me buy the 5m coax cable: https://www.patreon.com/radioprepper
Mast cap 3D file: https://www.thingiverse.com/thing:3863712 DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. .
Subscribe to my alternate platforms:
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...
https://www.youtube.com/watch?v=F1wLSUVBPMI