The TS-480 is amazingly stable without the TXO. Unless you are super fussy, you won't need it. I have a friend who bought one for his TS-830 some years back and said he really couldn't detect the improvement. At 01:16 PM 2/7/2008, you wrote: >Hello; >I ran across a reasonably priced ts480 used on the arrl site. It is long >gone but I'm wondering how difficult it was to install the voice guide and >filters? are they plug in? >Also have folks found that they needed or wanted the tcxo extra for the >ts480? >Richard > > > > >-- >No virus found in this incoming message. >Checked by AVG Free Edition. >Version: 7.5.516 / Virus Database: 269.19.21/1265 - Release Date: >2/7/2008 11:17 AM