Originally Posted by xodeuce
If you know someone with a 1/2λ antenna, you could always try that and see if it's any better.
The SBB-1 is 1/2 wave on 70cm. If we know the SWR on that band it might be useful, too. Can't see a way to tune it from the photos on the web. Sorta looks like a HT rubber duckie with an NMO mount. :-)
'91 Toyota Pickup
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
"They say the test of literary power is whether a man can write an inscription. I say, 'Can he name a kitten?'" -- Samuel Butler