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eHam Forums => Boat Anchors => Topic started by: W9VOX on March 21, 2011, 10:24:06 AM



Title: Swan Cygnet 270B Vox Issue
Post by: W9VOX on March 21, 2011, 10:24:06 AM
Really enjoying my recently acquired 270B but ran into an issue when trying to use the VX-2 vox module.  Hopefully someone has had the same problem and can point me in the right direction.  My problem is the that with the VX-2 installed the transceiver is always transmitting(keyed mic), no matter how low the vox gain is set. 

Thanks in advance,

Greg W9VOX


Title: RE: Swan Cygnet 270B Vox Issue
Post by: G3RZP on March 21, 2011, 12:33:27 PM
Don't know the VX2, but similar units from other manufacturers had problems. Does it have a relay to drive the tx PTT? If so, is it stuck? Some similar units used under rated reed realys which did stick closed. Or if it uses a transistor driver to the PTT line, is the transistor short circuit?


Title: RE: Swan Cygnet 270B Vox Issue
Post by: W9VOX on March 22, 2011, 03:57:20 AM
Thanks for the reply. I've located a schematic for the VX-2 but don't have it in front of me right now. I'll take a look at it tonight and let you know.