Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - gil

1
I made a video about this... Something I call "knowing your RF landscape."

Gil.
2
Antennas / Re: Magnetic antenna query
November 16, 2019, 05:53:41 pm
It is a vast subject... Let us know if you find anything ;-)
Probably a lot of antennas have been discovered by trial and error. The science is there to verify findings, but I don't think it can offer solutions. I believe a lot of informed intuition goes into designing an antenna...
Gil.
3
Morse Code / Re: Morse Mania
November 13, 2019, 03:56:22 am
Hi, never heard of it, which is surprising... Thanks.
Gil.
4
Military Radios / Re: The UK PRC 316 / A-16
November 13, 2019, 03:52:44 am
Awesome, thanks guys!
Gil.
5
Military Radios / Re: The UK PRC 316 / A-16
November 12, 2019, 03:45:25 am
Hello Ray :-)

It was very tempting... Rig from Italy... Still a bit heavy for trekking, but certainly a 9 on coolness ;-) I am considering building a Paraset... Historically very significant here...

Gil.
6
Morse Code / Re: Today I learned a-z, 0-9
November 12, 2019, 03:42:51 am
Awesome! Stick with it!
Gil.
7
Antennas / Re: Magnetic antenna query
November 11, 2019, 05:05:57 pm
Not very clear, but it does explain it somewhat. Very little electric field, but no doubt not zero, or there would be no RF produced, as far as I understand it. Interestingly mag loops can have a few thousand volts at the capacitor... That somewhat contradicts the statement.

Gil.
8
Welcome aboard!

Gil.
9
Military Radios / Re: The UK PRC 316 / A-16
November 11, 2019, 05:00:04 pm
I once saw one one Ebay, untested, almost bought it, but it was about $500...

Gil.
10
Hi, sure, if you will be the moderator...

Gil.
11
Antennas / Re: antenna theory - fundamentals
November 07, 2019, 06:05:47 am
I'm all ears...
Gil.
12
Antennas / Re: Magnetic antenna query
November 07, 2019, 06:04:41 am
I wish I knew...

The fact is that a radio wave is made of both an electric and a magnetic field at 90deg to each-other, since those are generated by the tank circuit, electric field by the capacitor and magnetic field by the inductor. A magnetic loop is said to "favor" the magnetic field... Whatever than means... I do not know how that happens, but it is an interesting question to investigate...

Gil.
13
Hello,

I need to reinstall the module and check the listing... Will do...

Gil.
14
General Discussion / Re: https for the login ?
November 06, 2019, 07:37:21 am
Thanks!
Gil.
15
Quote from: Marcel on November 03, 2019, 10:18:36 pmAre the following
calculation correct ?

Hi, I don't know. I use an online Yagi calculator like this one: https://www.changpuak.ch/electronics/yagi_uda_antenna_DL6WU.php