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Messages - gil

New To Radio / Re: Visiting France
October 05, 2021, 04:38:23 PM
Bonjour :-)

1. I never had a problem doing so.
2. I'd say no. I do it all the time.
3. Depends what you call a shelter. A tent, generally no. In some places it is possible but between 7pm and 7am, and the tent must not be too tall, I think 1.2m max. Not sure though, search for other sources.
4. I do it all the time.
5. No problem.

I operate portable with my friends pretty much every other week-end and do exactly what you describe. I never had an issue. We have been "checked out" by the gendarmes a few times, as well as national park police. They just wanted to know what we were doing and were even somewhat interested... Mostly wanted to know if we could listen to their radios, LOL.. We were kicked out once off a site, abusively... Since then I carry park rules with me, on paper, to show them there are no restrictions about radio. The only thing they don't like is drones and 4WDs in many areas. We never had to deal with municipal or national police, but I suspect they would be more trouble. The gendarmes are very professional (military). Usually we don't see any uniforms...

Where are you going in France?

Military Radios / Re: Gil's next truck?
September 29, 2021, 03:53:22 PM
Fascinating! And the fact that the same functionality, and them some, today fits in the palm of the hand..
Licensing / Re: Ham licensing in France
September 22, 2021, 02:27:50 PM

I just answered in my previous comment. Unfortunately I don't know any more than that. Good news, now it's free...

Hello. Keep it, there has to be a way... Also, most anti virus software will raise an alarm on anything that isn't "standard" and certainly binary files like firmware updates. That doesn't mean there is malware in there... Just verify that you are on the correct site and re-run your anti-virus after the update. Heat could cause that problem. I don't think it would be a physical issue, except if the radio case was squished somehow and presses somewhere causing trouble, but that is unlikely.
If I was you I would try the Chinese firmware update file and cross my fingers...

Hi, I just saw this! Better late than never... Thanks!

General Discussion / Re: Radioberry
August 11, 2021, 06:58:40 PM
Very interesting thank you!

I might go with a HackRF though, because it's only one card, but this looks promising and more compact...

Antennas / Re: effective ENDFED antenna for 20m
June 08, 2021, 03:55:20 PM
QuoteI found that increasing the power the connections did not get better.

That my friend is a very important statement...
Thank nyou for sharing. Keep experimenting!
I will too :-)

Antennas / Re: Simple Dual Band 20m/40m Vertical
June 05, 2021, 03:46:42 PM
Hello, I bet you could make a half-wave one by doubling the wire lengths... Like my
PAR 10/20/40... Using a 49:1 or 64:1 transformer of course..

Antennas / Re: Portable UHF Yagi antenna
June 05, 2021, 03:35:50 PM
Hello. If I remember well, there was no plan so to speak, but a link to an online Yagi calculator...

Antennas / Re: Magnetic antenna query
June 05, 2021, 03:34:46 PM
Very interesting, thank you!
Antennas / Re: EFHW as an inverted V
June 05, 2021, 03:31:19 PM
Hello Josefius.

I definitely think it will work, but of course you won't know until you try...

Antennas / Re: effective ENDFED antenna for 20m
June 05, 2021, 03:29:06 PM
Hi, so, do you conclude that 4c65 is better than 43?

Antennas / Re: effective ENDFED antenna for 20m
June 01, 2021, 02:56:49 AM
Thank you so much for taking the time to post your results, very interesting! Of course the EFHW is not the most efficient, but efficiency is not always the primary objective. I like the practical nature of the antenna. Interestingly I just tested a 49:1 with an FT-240-61 core, two turns primary, and it did not work on Hf or 6m. Maybe I did something wrong, bad solder joint or something, but the SWR stays around 5:1.... The same one using an FT-240-43 works great... What do you think of that?
Awesome, The French government would never allow something like that, LOL.

Antennas / Re: effective ENDFED antenna for 20m
May 27, 2021, 06:16:21 AM
Hello. True, there isn't much difference between 49:1 and 64:1. It is a high dividing number, so there will be only a few Ohms difference in the end. Truth is, the impedance of a half-wave wire is very difficult to measure and theoretically should be infinite, but it isn't... VNA measurements are just not reflecting the truth... The resulting impedance and divider will tell you approximately what it might be. Ultimately it doesn't matter. Make your wire as close as possible to a half-wave (don't forget the velocity factor of the wire) while maintaining an SWR lower than 2:1.
Try to wind your transformer the way I do it, using a single wire and twisted primary turns. Three turns primary for low bands, two for upper bands above 20m. 43 and 52 material cores should work best, 43 for lower bands, 52 for upper.