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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Upper band Ka reception
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<blockquote data-quote="Vipersan" data-source="post: 845194" data-attributes="member: 325666"><p>Now I wonder if both Topper and Huevos are on to something here..</p><p>Can we assume that the inverto ka lnbs although geared for circular can 'see' the frequencies I'm targeting ?...but they cannot be tuned because the tuners in conventional receivers don't cover a wide enough area of the spectrum ..?</p><p>Much like the old Analogue days and the inception of Astra 1D ..</p><p>Where a lot of tuners simply couldn't tune that upper area ..?</p><p>and a tweak was introduced in the form of the Global 1D convertor ...which effectively band shifted a chunk of upper spectrum into a lower area that the tuners could 'see' (IF shifting)</p><p>Well I had a dig around in my loft last night and found the one I bought many years ago for accessing filmnet..</p><p>Would something like this work ??</p><p>Designed for use with analogue not digital ..but then IF is IF..</p><p>back to the experts..</p><p></p><p>..of course we still dont have Linear ..and would expect at least a 3db loss using an lnb designed for circular polarisation ..and would require that no opposite polarised signal used the same frequency ..but in theory ????</p></blockquote><p></p>
[QUOTE="Vipersan, post: 845194, member: 325666"] Now I wonder if both Topper and Huevos are on to something here.. Can we assume that the inverto ka lnbs although geared for circular can 'see' the frequencies I'm targeting ?...but they cannot be tuned because the tuners in conventional receivers don't cover a wide enough area of the spectrum ..? Much like the old Analogue days and the inception of Astra 1D .. Where a lot of tuners simply couldn't tune that upper area ..? and a tweak was introduced in the form of the Global 1D convertor ...which effectively band shifted a chunk of upper spectrum into a lower area that the tuners could 'see' (IF shifting) Well I had a dig around in my loft last night and found the one I bought many years ago for accessing filmnet.. Would something like this work ?? Designed for use with analogue not digital ..but then IF is IF.. back to the experts.. ..of course we still dont have Linear ..and would expect at least a 3db loss using an lnb designed for circular polarisation ..and would require that no opposite polarised signal used the same frequency ..but in theory ???? [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Upper band Ka reception
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