Be careful there are fake Nagoya 771's out there. They do not work! I know because I ended up getting one. It worked "ok" on Vhf but was dead on UHF. Funny thing was I ordered two of them from the same place, 409shop.com, one was fake and one was not. Spend the extra $$$ and get the Comet or Diamond or my personal favorite Smiley AntennasI have heard of the Nagoya 771 and have read allot of reviews on it. From what I can see longer isn't always better. It would seem that it works well for VHF, but UHF performance is about the same a the stock antenna.