Hi and thanks Steve, I didn't think the 480 had that but thought I'd ask. I guess if you want to use a power amp on the 480, you just crank the power down to 5 or 10 watts manually which is not a problem. Thanks, Jim ----- Original Message ----- From: Steve Forst <[log in to unmask] To: [log in to unmask] Date sent: Sat, 29 Sep 2012 15:34:45 -0400 Subject: Re: Beware of the DRV Function On The TS590 No Jim, not on the 480. 73, Steve KW3A On 9/29/2012 3:26 PM, Jim Gammon wrote: Does that same feature apply to the TS-480? Have never heard of it. Jim WA6EKS ----- Original Message ----- From: Steve Forst <[log in to unmask] To: [log in to unmask] Date sent: Sat, 29 Sep 2012 06:43:31 -0400 Subject: Re: Beware of the DRV Function On The TS590 That's right Bob. For driving a transverter or any other device that only needs a minimal amount of drive. I think it is pulling the RF from the driver transistors before it gets to the final PA transistors. I've heard of others doing this, so it is something we should keep in mind when the rig doesn't seem to be working right. 73, Steve KW3A On 9/29/2012 12:40 AM, Bob, K8LR wrote: Hi Tom, I think that the drv function is for driving a transverter, but that is just an educated guess! Bob, K8LR, [log in to unmask] ----- 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