[1000mp] ARB-704 and Yaesu Mark V

[Pete Smith]

Well, you could always RTFM, but why spoil your fun?  The info on this is on page 12 of the Mk5 manual, but the short answer is that you can indeed damage the radio - though perhaps not with the AL-80B.  

73, Pete N4ZR

At 12:41 PM 11/28/2006, you wrote:
>Why you need the ARB-704
>
> 
>
>Amplifiers can damage radios if the amplifier has too much relay control
>voltage, voltage spikes, or excessive current on the relay control line.
>Such damage often appears as "stuck" or "sticky" transmit relays in exciters
>or shorted transistors on transmit control lines. In most cases where the
>radio is damaged, the system transmits normally but the external amplifier
>stays locked in a "transmit" mode. This prevents receive signals from coming
>through the amplifier with normal levels whenever the amplifier is in the
>"ON" or "OPERATE" position.
>
> 
>
>Above is the reason I have placed the ARB-704 between my Yaesu Mark V and my
>AL-80B.  However I was told that the Yaesu Mark V will not allow this type
>of damage to occur and my having the buffer between the rig and the amp is
>overkill.  What is the real true?
>
> 
>
> 
>
> 
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>
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