Hi Jerry
As far as I know, radials will primarily help on transmit.  They keep most 
of the transmitted signal from being absorbed into the earth.
Generally you will have more noise (static) on a vertical than a dipole.
As I understand things, changing the resonant frequency on one band of that 
antenna will change the frequencies for other bands meaning that fixing 20 
meters may have irritated problems on other bands.
As for radials, you are primarily looking for insolated wire anywhere from 
16 to 30 feet long.  Butternut (bencher) sells a ground radial kit that is 
very overpriced which is primarily 16 radials each 30 feet long.  Since the 
antenna is ground mounted, the length isn't critical but if geography 
requires significantly shorter wires then you should consider more of them. 
Supposedly there is a screw near the base of the antenna to attach radials.
For general vertical info you might look at bencher's web site. There is a 
fair amount of interesting stuff.
Richard
----- Original Message ----- 
From: "Gery Gaubert" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, March 11, 2008 9:53 AM
Subject: FW: hf 6v


-----Original Message-----
From: Gery Gaubert
Sent: Tuesday, March 11, 2008 9:52 AM
To: [log in to unmask]
Subject: hf 6v

I took the antenna down this weekend.  I got the swr under 2 on20 but it is=
 above 2 on 40 now.  On 80 meters it is under 2.  I also notice I have a lo=
t of static as compared to the 20 meter dipole.  I am now trying to figure =
out where to connect radials, what kind of wire to buy and curious as to wh=
ether radils help with transmition, reception, or both.  I checked all conn=
ections for moisture as well as to see if they are not loose.  Everything s=
eems ok.