Hi, I remember an old post about mods for General Radios GR-1236 for use them to measure noise on 28MHz, but I can't find it anymore. Anyone have any useful document about... Thanks in advance BR Jan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.moonbounce.info/pipermail/moon/attachments/20141203/36dd4640/attachment.html>