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<blockquote data-quote="s-band" data-source="post: 973298" data-attributes="member: 407744">It's only the narrow band sigs that are very loud from 25E, 10500 are the same level as on 15W. I have a feeling you have highlighted the narrow band sigs from 25E on mystery2.png. I can see those sigs more of less anywhere I point an antenna. Have a close look and see if JAERO will decode the lowest of the group (600bps). The frequency is suspiciously close to pics 2-4 here: <a href="https://www.satellites.co.uk/forums/threads/the-aero-thread.168130/page-15#post-972954" target="_blank">The Aero Thread..</a>Two things from your wide sweep:1 Some of your problems may be from overload at low frequencies. The signals there are quite high, The helical is quite effective there and the LNA4ALL has higher gain at the LF end. A simple high pass (or band pass) filter may do the trick.2 The step change at the high frequency end is where the R820T loses lock, I think.</blockquote>

[QUOTE="s-band, post: 973298, member: 407744"] It's only the narrow band sigs that are very loud from 25E, 10500 are the same level as on 15W. I have a feeling you have highlighted the narrow band sigs from 25E on mystery2.png. I can see those sigs more of less anywhere I point an antenna. Have a close look and see if JAERO will decode the lowest of the group (600bps). The frequency is suspiciously close to pics 2-4 here: [URL='https://www.satellites.co.uk/forums/threads/the-aero-thread.168130/page-15#post-972954']The Aero Thread..[/URL] Two things from your wide sweep: 1 Some of your problems may be from overload at low frequencies. The signals there are quite high, The helical is quite effective there and the LNA4ALL has higher gain at the LF end. A simple high pass (or band pass) filter may do the trick. 2 The step change at the high frequency end is where the R820T loses lock, I think. [/QUOTE]

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