By all means, for the power source for the radio, one should place a fuse in
both the pos and neg leads at the battery. The fast acting circuit breaker
should be in the pos lead at the radio. The fuses will protect the cables
and the vehicle should an insulation failure due to heat or vibration take
place and protect the radio should the neg battery connection fail between
the battery and the engine ground. The fast acting circuit breaker will
protect the radio should an internal short develop or from excessive PA
current demand in the event of a severely mis-matched antenna condition.
Safety is no accident.
73
Bob, K4TAX
----- Original Message -----
From: "robert k stephens" <bstephens1@mindspring.com>
To: <tentec@contesting.com>
Sent: Tuesday, March 11, 2003 7:32 PM
Subject: Re: [TenTec] Airpax breaker
> Tnx to everyone for your different answers. I already have fuses on the
> PS/battery end of my DC cables (both mobile and AC power) so I should be
> protected from problems on that end. As I understand it, the Corsair does
> not have a fold down feature, so therefore the Airpax breaker is for
> protection of the finals (the manual says a fuse alone will not protect
the
> finals). According to the manual the Corsair on/off switch does not work
> without a TT PS so the breaker becomes the effective on/off switch. Having
> that switch near the rig is more convenient. It would be particularly
> inconvenient to locate the breaker/on/off switch on the battery end of the
> mobile installation <g>. Therefore, I think I'll put the breaker next to
> the rig and fuses on the power end.
>
> Tnx agn
> Bob KB1CIW
>
>
> At 02:09 PM 3/11/03 -0600, you wrote:
> >Near the power supply as then it will protect against an insulation fault
of
> >the interconnecting wires.
> >Stuart K5KVH
> >
> >
> >_______________________________________________
>
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