XV144, protection against high SWR?

[Samir Popaja-3]

Hello,

I just wondering if the XV144 has some kind of protection against high SWR?

I have burned C44 in XV144, twice in very short period. First time when I
using
XV144 to tune input circuit of my amplifier, and second time I forgot to
switch
input relays when testing and the XV144 was without load for less the 1s, it
was enough to burn C44...

http://www.sk7mw.se/samir/xv144/xv144_burned_c44.jpg

Thank you

Samir, sm7vzx
 

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[Don Wilhelm-4]

There is no high SWR detection or protection in any of the XV transceivers.
If operated into a high SWR, yes, high RF voltages will exist in the Low
Pass Filter which can easily exceed the voltage rating of the chip
capacitors.

73,
Don W3FPR

On 4/9/2012 4:14 AM, Samir Popaja wrote:

> Hello,
>
> I just wondering if the XV144 has some kind of protection against high SWR?
>
> I have burned C44 in XV144, twice in very short period. First time when I
> using
> XV144 to tune input circuit of my amplifier, and second time I forgot to
> switch
> input relays when testing and the XV144 was without load for less the 1s, it
> was enough to burn C44...
>
> http://www.sk7mw.se/samir/xv144/xv144_burned_c44.jpg
>
> Thank you
>
> Samir, sm7vzx
>
>

______________________________________________________________
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Please help support this email list: http://www.qsl.net/donate.html