Yes, both Orions list as a feature:
"Over-voltage protection, current protection for final transistors and
thermal shutdown are built-in."
I've never had my Orion shut down but I have had my Omni VII shut off
when I accidentally had the wrong antenna selected.
The Airpax does add another level of protection and peace of mind!
73,
Alan N5NA
http://www.tentecwiki.org
Robert Carroll wrote:
> At the risk of reigniting a hot topic, this morning I developed a sudden SWR
> problem while running barefoot this AM. I was running 100W from my Orion
> 565 when I saw my digital meter jump up to around 4:1 SWR and the Airpax
> breaker I had "protecting" the Orion (Astron supply) tripped for the first
> time ever. Holding my breath, I turned the Orion power switch off and reset
> the Airpax. To my great relief all was well-or at least it seems to be 12
> hours later. No fuse in the Orion blew. I understand there is a protection
> circuit in the Orion which eliminates the need for an external breaker.
> Perhaps that would have protected the finals, but it didn't prevent the
> Orion from sucking enough current to trip the Airpax and that makes me
> wonder if I would have been packing the set up for shipment to TN if the
> Airpax had not been in line. I have never been convinced that the Airpax
> was necessary, but when it clicked off, I was very glad I had installed it.
>
>
>
> I never did find anything wrong with the antenna system, and I ran at legal
> limit calling the 3B1 this AM with no problem. I did go out this afternoon
> and spray some Caig on two connectors and a barrel. But there may be a
> problem waiting to reappear.
>
>
>
> FWIW
>
> 73
>
> Bob W2WG
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|