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Message: <blockquote data-quote="s-band" data-source="post: 986325" data-attributes="member: 407744">My Invacoms are SNF-031. I forgot to mention that they were not without problems. The one I had been using for about 4 years became deaf and especially so on low band such that I changed the switch over frequency before dumping it. It was about 2-4dB down on the one used for the tests which is an older one I found in the shed. I'm using that one now but it suffers from serious microphony on the low band LO. The SNR drops by 5dB or more when the actuator is active (or I tap the dish).The flange used for the Octagon was from an Invacom that came with a dish. The flange came off when I twisted it to remove it from the feed assembly.</blockquote>