Tom,You won't believe this, but this morning while doing some tests and 
listening on another receiver I hit that button  instead of the pf key 
that speaks alc/compression.   I was running 5 watts into a dummy load 
and no antenna on the TS-2000 which was the RX radio.    All of a sudden 
the 2000 isn't hearing any TX from the  590.

I was afraid the RX in the 2000 had blown,  until I found my mistake.

BTW, the DRV sends it's output to one of the RCA jacks on the lower 
right hand corner of the rear of the 590.

Hope to hear you this afternoon.

73, Steve KW3A

On 9/29/2012 1:36 PM, Tom Behler wrote:
> Makes sense, Steve.
>
> Tom Behler: KB8TYJ
>
> ----- Original Message -----
> From: "Steve" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, September 29, 2012 1:02 PM
> Subject: Re: Beware of the DRV Function On The TS590
>
>
>> I think it reduces your output so you can drive a transverter.
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Saturday, September 29, 2012 12:17 AM
>> Subject: Beware of the DRV Function On The TS590
>>
>>
>>> Hello, all.
>>>
>>> What I'm going to share here may not be big news to some, but for those
>>> like
>>> me who never had this problem, it is a bit disconcerting.
>>>
>>> Tonight, I decided to fire up and get re-acquainted with my TS590, since
>>> I
>>> probably hadn't even turned it on for a month and a half.  I had taken
>>> some
>>> SWR and output power readings using the rig's  internal meter, and
>>> everything looked great, until I tried getting on the air.
>>>
>>> Even if I was on a resonant or near-resonant frequency for one of my
>>> antennas, the rig's auto-tuner would not tune.
>>>
>>> I played around for quite a while, trying to figure out what was wrong,
>>> and
>>> then, I decided to swallow my pride, and ask the sighted XYL for help.
>>>
>>> It turns out that I inadvertently had activated the DRV function.  This
>>> happens when you press the meter function button down too long.  The
>>> meter
>>> switch is one of the few buttons that doesn't talk on the rig, so it's
>>> very
>>> easy to make this mistake.  Once the meter switch  button was re-set to
>>> normal, everything was fine again.
>>>
>>> Does anyone know what the DRV function is, and has anyone ever used it?
>>>
>>> Just curious.
>>>
>>> 73 from Tom Behler: KB8TYJ
>>
>
>
>