Hello- I am currently using my SB-200 with my TS-440S but I want to put it on my TS-450. Can anyone tell me if any different interface is needed. Thanks and 73 WV1K Matt -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm