comes with *some* of the tw-1's, mine didn't come with one. I run mine off 
the power supply with everything else in my station just about and it works 
fine, only things not on that power supply are my W2IHY 8 band EQ, and my 
rigblaster plus, not sure why but the rigblaster gets a ton of rf feedback 
when I connect that to the power supply with everything else, not as good 
isolation as they advertise I guess. Their explanation for why not to hook 
up the negative lead when you have it on the power supply with everything 
else makes a lot of sense though, I keep meaning to see if that might work 
with the tw1 as well.
----- Original Message ----- 
From: "tom behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, October 01, 2009 9:48 PM
Subject: Re: need good ideas for RF ground


>    I have a couple of those rectangular Radio Shack toroids somewhere
> around here, so may give them a try once I find them.
>
> Again,  I'm using the regular walwart supply that comes with the TW1.
>
> 73 from Tom Behler:  KB8TYJ
>
> ----- Original Message ----- 
> From: "Butch Bussen" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, October 01, 2009 9:27 AM
> Subject: Re: need good ideas for RF ground
>
>
> If changing power supplies doesn't work, you might try a rf choke on the
> power lead, a toroid of some kind. BTW, I've always found for some reason,
> 40 is the worst band for rf getting into stuff.
> 73
> Butch Bussen
> wa0vjr
> open Node 3148
> Las Vegas