HFU HF Underground - Shortwave Pirate Radio in North America and Around The World (And other stations that go bump in the night)
    New users are welcome! Please register for an account in order to post to the board.   Posting your logging here is the best way to get a QSL from a station. June 18, 2013, 0736 UTC *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: You can access the HF Underground wiki here: http://www.hfunderground.com/wiki/Main_Page as well as the RadioHobbyist.org technical blog

Click here for the: Pirate Radio IRC Chat Java Client

Follow us on Twitter: https://twitter.com/HFUnderpants
 
   Home   Help Search Login Register  
   Morse     
   iPad app to decode morse code     

HFU HF Underground > General Category > General Discussion (Moderator: Fansome) > This is why you should disconnect your antenna during a storm
Pages: [1]
« previous next »
  Print  
Author Topic: This is why you should disconnect your antenna during a storm  (Read 340 times)
ChrisSmolinski
Administrator
Hero Member
*****
Posts: 4100


View Profile
« on: May 29, 2012, 2324 UTC »
An LED (Light Emitting Diode) connected across the coax transmission line from my 635 ft sky loop antenna, during a thunderstorm. You can see the LED flashing with the lightning strikes.



 

This is why you should disconnect your antenna during a storm.
Logged
Chris Smolinski
Westminster, MD
JRC-NRD 545 / RF Space netSDR / 670 ft horizontal loop
cmradio
Hero Member
*****
Posts: 838



View Profile WWW
« Reply #1 on: May 30, 2012, 0940 UTC »
Very cool demonstration!

Funny you post this today... I just bought a bag of little gas discharge tubes from fleabay to put across my radio terminals (RX and TX), considering the storm season approaching.

Peace!
Logged
Beaconeer and occasional SW DJ/ranting curmudgeon.
John Poet
Sr. Member
****
Posts: 288



View Profile WWW Email
« Reply #2 on: May 31, 2012, 1539 UTC »
From what I've read, a lightning strike as much as a mile away can be enough to off your unprotected radio from the charge it'll put into your antenna.
Logged

John Poet
"A treasonous voice of dissent"

Free Radio Cafe Forums
The Crystal Ship
Pirate Radio Broadcasting on FRC
Pages: [1]
  Print  
   Transmission Line Calc     
   iPhone app to analyze RF Transmission Lines     

« previous next »
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.12 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!

Click here for Android
Click here for iPhone/iPad/iPod Touch