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Messages - gil

Pages: 1 2 [3] 4 5 ... 194
Antennas / Re: Tent Pole antenna - could it work ?
« on: January 28, 2019, 01:26:33 PM »
The thing is, if you put the tuner at the radio, you'll have high cable losses. With the UNUN you lower those. Not as good as a 50-ohm match but better. Try with the tuner at the wire, but I would use a UNUN...


Antennas / Re: Tent Pole antenna - could it work ?
« on: January 26, 2019, 03:53:42 AM »
Certainly. You would use a 9:1 UNUN to get the impedance down to where the tuner can handle it...


General Discussion / Re: Update and The Necessity to Educate People.
« on: January 26, 2019, 03:52:12 AM »
So far so good  :) France is very frustrating though, the bureaucracy is overwhelming, not to mention taxes  ::) Pretty much everything is prohibited. You can't do anything that is remotely unsafe! That of course because if you injure yourself, the government has to give back some of that money it stole >:( The region here is amazing though!


I will be getting one... Or two...!

Here is the latest info:


General Discussion / Re: radio preppers blog
« on: January 16, 2019, 05:00:03 PM »

Because if those verifications are not implemented the forum gets flooded with spam. Apparently you succeeded, welcome aboard ;) And maybe we only want smart and determined people here  ;)


Antennas / Re: The 49:1 Half-Wave End-Fed Transformer Campain is ON!
« on: January 14, 2019, 01:02:38 AM »
Hello, very interesting, please post photos! Potting did not work for me, but you might have better luck...


Thanks, that is pretty interesting for prepping!


General Discussion / Re: Update and The Necessity to Educate People.
« on: January 02, 2019, 04:18:29 PM »
Once your are more settled-in, videos of exploring your new home region should be quite interesting.

I sure hope so! I might have to go to Italy for off-roading though, since of course in France it's prohibited pretty much everywhere... No surprise here... Fortunately Italy is very close :)


General Discussion / Update and The Necessity to Educate People.
« on: December 28, 2018, 01:16:26 PM »
Hello guys, and girls I guess, if any. I hope you all had a merry Christmas. I have only been lurking in the shadows lately and removing spam, a lot of spam lately… Someone must have added the site to a bot list… I upped the security, and involuntarily the complexity to sign-up, but it was hard to avoid. The Radio Prepper channel is keeping me pretty busy, not to mention my move to the south of France. I brought very little radio gear with me but I do have plans, some of which involve vehicle radio setups, starting with CB! Living now in a tiny apartment I will also need to assess that issue, probably with a new magnetic loop.

I am now waiting for a VRM-5080 VHF tank radio and a President Grant II CB for my newly acquired Toyota Land Cruiser 1989 LJ-70. The antenna I picked is the Sirio 5000. Stay tuned for upcoming videos...

BTW I was watching a B series movie on Netflix the other night with Sandra Bulloch… No, I don’t mean she was with me, only in the movie ;-) It was a story about evil entities you could not look at or you’d go crazy and kill yourself… Two hours of my life I won’t get back, but it got me thinking about the necessity to educate people.

In the movie, after the SHTF, a group of survivors scavenges a bunch of FRSS/GMRS radios from a store. They call every day hoping to hear someone, and eventually they do… Someone who is presumably at least  48hrs away by river boat… Which in reality is very  unlikely to happen given the distance. I have seen the same thing happen in other series like “The Walking Dead.” Walkie-Talkies as soon as they appear on the screen become quasi-sat-phones or super-duper NVIS HF handhelds… We know it’s BS, but most people probably believe those lies, the same way they believe Hollywood guns hype. They think you just find a radio, any kind, and the world is at your fingertips. I would not be surprised if many preppers held similar beliefs. Many will only learn enough to use an SWR meter and make sure they don’t fry their radio. No thought is given to antenna design and polarization, propagation modes, modulation modes or bands to use at different times or seasons. Sure, they might get lucky, but not always… You break down somewhere and try to call on a CB frequency during the solar-cycle low, as now, you probably won’t cover but a 20 mile radius, if you’re lucky. You can forget about your FRS or PMR little handheld…

It is our responsibility to educate, and not just other HAM operators… CBers, preppers, outdoor enthusiasts, can all benefit. We can do this without coming across as elitist pricks, which to my dismay is a reputation a few bad apples have brought upon the HAM community in some places.

On a more personal note, I am just coming out of a bad cold, and three weeks of moving, paperwork, new job, settling down hell I hope not to have to repeat too soon, and it's not quite over yet. That said, the region is beautiful, and much warmer than the north of France!


Antennas / Re: Ground Tuning Unit.
« on: November 20, 2018, 05:50:37 AM »

Here is another one; image attached...

Parts List:
  • Variable resistor 50k/ohm R1.
  • Switch single pole 12 way S1.
  • Capacitor variable 500pf air spaced (1mm recommended) C1.
  • Diode point contact germanium diode 1N34 OA91 D1.
  • Toroid T50-2.
  • Meter 50 or 100ma L1, M1.
  • Enamelled copper wire 1.8 or 2mm (14swg)and 0.5mm(24swg).
  • Insulated shaft extension.
  • Capacitor 10nF (103) C2.

Gil, the Mac version of the free OpenOffice suite opens DOCX files with no problems.

Yes, thanks, usually it does, but not this time, weird...


Antennas / Re: Ground Tuning Unit.
« on: November 19, 2018, 11:34:23 AM »
Thank you, much appreciated!


Sent from my SM-G928F using Tapatalk

Antennas / Ground Tuning Unit.
« on: November 19, 2018, 06:51:03 AM »

Here is an interesting document on a portable station using a ground tuning unit...
If someone could turn it into a PDF and email it to me: (switch for I can only open it on my phone but not my Mac...
Have anyone here used a ground tuner? Comments?
Thanks to Alex, VK2PRC for sending me this file.

Thank you!


Good one, thanks Sparks.


Antennas / Re: Remote Antenna Tuner Part 2
« on: October 22, 2018, 07:34:57 AM »
Great, on my watch list... I'll watch them tonight :-)


General Discussion / Re: KX3 MARS Mod.
« on: October 15, 2018, 11:45:58 AM »

Did you get the latest versions from Elecraft?
The programs posted here are probably out of date...


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