10 kHz gives room for roughly 3 SSB stations as the opposite to CW where 40 stations (asuming 250Hz bandwidth and filters) will have room... And room fer 100 s of PSK31 signals Bob K3DJC : ) -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.com Problems: owner-topband@contesting.com