Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
7/29/2013 11:18:00 PM EDT
We have a tropical storm blowing through that is causing a lot of local thunderstorms.

Since they rolled in, I'm seeing very little signal on 20m and no one is hearing me.  Is this normal for this type of low level EM disruption?
7/30/2013 4:34:09 AM EDT
[#1]
I do not have a clue as I shut down ops if there is a T-storm on the way.
7/30/2013 4:41:29 AM EDT
[#2]
Are you seeing and hearing a high noise level and the lightning crashes?
7/30/2013 5:03:59 AM EDT
[#3]
Quote History
Quoted:
I do not have a clue as I shut down ops if there is a T-storm on the way.
View Quote

This. Radios are expensive. Why risk it.
7/30/2013 6:10:24 AM EDT
[#4]
There was a solar flare approaching M level around 2300Z that could have knocked propagation down for a while. Posters on another website said 20 was pretty hot most of the night.
7/30/2013 7:45:25 AM EDT
[#5]
Quoted:
We have a tropical storm blowing through that is causing a lot of local thunderstorms.

Since they rolled in, I'm seeing very little signal on 20m and no one is hearing me.  Is this normal for this type of low level EM disruption?
View Quote
See the same thing here in the Gulf Coast. A tropical disturbance disrupts the propagation. Getting on the Hurricane Watch Net when one is beaching in, it's takes some work to get my signal to be heard. Once that is past though I find that propagation gets very good at least for a short while. In addition there is some evidence that thunderstorms ionize the lower layers and that VHF propagation paths can be found immediately after a storm front passes.

From a safety standpoint it's best to shut down ops and unplug the antenna when a thunderstorm is in the area. One lightning strike to your antenna system and your whole shack will be smoked.
7/30/2013 9:36:11 AM EDT
[#6]
Quote History
Quoted:
I do not have a clue as I shut down ops if there is a T-storm on the way.
View Quote


I pulled the antenna in from the balcony before they got here.

I'm not as dumb as I look...... which is a good thing.
7/30/2013 7:00:42 PM EDT
[#7]
So much for any theories on lightning protection.  A friend just forwarded me this link.

http://www.wwltv.com/news/lafourche-terrebonne/Lightning-strikes-woman-inside-supermarket-215607921.html

Jup
7/30/2013 7:31:23 PM EDT
[#8]
Quote History
Quoted:
So much for any theories on lightning protection.  A friend just forwarded me this link.

http://www.wwltv.com/news/lafourche-terrebonne/Lightning-strikes-woman-inside-supermarket-215607921.html

Jup
View Quote




Do not get struck by it the first time.  

Believe it or not it increases your odds on getting struck by it.
7/30/2013 11:12:49 PM EDT
[#9]
Note to self... stay away from Loosyanna
7/31/2013 5:36:12 AM EDT
[#10]
Quote History
Quoted:
So much for any theories on lightning protection.  A friend just forwarded me this link.

http://www.wwltv.com/news/lafourche-terrebonne/Lightning-strikes-woman-inside-supermarket-215607921.html
View Quote
I've been in that store! It's no little podunk shop and rob.

Just goes to prove to not take lightning lightly. We have a 5 second rule when working on the ramp. From lightning strike to thunderclap if it's 5 seconds or less, get off the ramp. We typically have one aircraft a year struck by lightning at my location.
7/31/2013 7:56:36 PM EDT
[#11]
Quote History
Quoted:
Just goes to prove to not take lightning lightly. We have a 5 second rule when working on the ramp. From lightning strike to thunderclap if it's 5 seconds or less, get off the ramp. We typically have one aircraft a year struck by lightning at my location.
View Quote


Back when I was in the Navy, one of our A-6s got hit by lightning on the ramp.  It had just parked, and the plane captain was out chaining it down, and closing it up for the thunderstorm that was rolling in.  That's when it got hit.  Everyone looked out at the ramp, and there was the plane captain lying underneath the plane's wing, steaming like a fresh cow pie in a snow bank.  Fortunately, he was OK, and even finished out his shift.   Squids are tough!