Recent posts

#81
General Discussion / Re: How Norwegian hams helped ...
Last post by RadioRay - February 26, 2023, 02:03:00 PM
Thank You, Sparks !

People who think radio is obsolete are ignorant. They see it as comparing a row boat to a ship.  When a mighty ship sinks, the lowly rowboat becomes King.

73 de Ray  ..._ ._
#82
General Discussion / How Norwegian hams helped out ...
Last post by Sparks - February 25, 2023, 04:59:28 PM
For those who thought HF and MF can be scrapped and replaced entirely by satellite, you can read here what happened when one of the major providers of satellite service was hacked the day Russia attacked Ukraine in February 2022:

https://nrrl.no/nyheter/nrrls-assistanse-til-meteorologisk-institutts-stasjoner-pa-ishavet/

Google Translate will do a decent job here if you don't read Norwegian.

A couple of background links about the break of communications:

https://thestack.technology/viasat-ka-sat-outage-cyber/
https://news.viasat.com/blog/corporate/ka-sat-network-cyber-attack-overview
#83
General Discussion / Re: PLEASE READ! Welcome to Ra...
Last post by gil - February 20, 2023, 12:23:37 PM
Thanks Marjamada.
Unfortunately the forum has fallen into disuse.
Hopefully that will change. Thank you for your post.
Gil.
#84
Net Activity / Re: Radio Relay International
Last post by Sparks - February 18, 2023, 01:45:51 PM
Quote from: RadioRay on June 15, 2022, 01:43:21 PMThe training schedule can be found here: http://radio-relay.org/wp-content/uploads/2022/06/RRI-Training-Classes-3Q-2022.pdf

Information from RadioRay in another thread today:

"The website has been changed to radiorelay.org — No hyphen between words."
#85
Net Activity / Re: Global Radio Relay Network
Last post by RadioRay - February 18, 2023, 01:38:12 PM
Thanks for the note, Sparks.  The website has been changed to

radiorelay.org

No hyphen between words.


73 & ZUT de RadioRay  ..._ ._
#86
Net Activity / Re: Global Radio Relay Network
Last post by Sparks - February 18, 2023, 01:34:02 PM
Quote from: RadioRay on September 03, 2018, 10:36:08 PMRadio Relay International  after action report on exercise contains useful information about QRP CW for emergency communication.

http://radio-relay.org/wp-content/uploads/2018/05/RRI-2018-Q1-and-Q2-Exercise-Evaluation.pdf

Please note: "radio-relay.org is parked free, courtesy of GoDaddy.com".
#87
Net Activity / Re: Global Radio Relay Network
Last post by RadioRay - February 17, 2023, 05:08:21 PM
Bump!
#88
Net Activity / Re: Radio Relay International
Last post by RadioRay - February 17, 2023, 04:35:29 PM
Bump!
#89
Antennas / Re: "Sparkplug" antenna
Last post by ON5BGO - January 31, 2023, 06:30:11 PM
Thanks to make me discover that sparkplug-antenna !! HI
excellent !!
#90
Antennas / Re: Interesting EFHW transform...
Last post by ON5BGO - January 31, 2023, 05:32:50 PM
Hi Mark,
thanks for sharing that info. I'm in the "balun/transformer subject" for now and not heard of that method.
Interesting measure's results !

73, Ben