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<blockquote data-quote="Vipersan" data-source="post: 994809" data-attributes="member: 325666">Last Week Nelson loaned me a Zinwell ZCF-D21B to play with ..So today I popped out the ESX241 that deals with linear on Cband (Christina)Keep in mind this lnb is about 3 degrees offset from focus ..I chose for the Test the only transponder I can currently lock at 37.5W - Silverbird ..First checked that it was locked solid ..which it was at around 8.7db ..Then swapped it out with the Zinwell ..Also take note I cannot change the feed rings nor adjust these as the plate is fixed and cut to allow close grouping on the other lnbs ..So ...a straight swap ...positioning the Zinwell to exactly emulate the ESX position wise ..Well ..Nelson was right ...the gain had increased and was reading 9.5 on the F15 ..BUT ...the signal was breaking up all the time and would not lock solid ..So I'm assuming a higher S ...but lower Q ...I'm not well enough atm to stay up ladders for long ...so swapped back to the ESX which again provided a solid lock ...of Silverbird but try as I might I could not get the Sig level above 8.7 ..It may well be that more playing around with the Zinwell might well be effective ...but for now remains a curiosity ?Higher gain ..but lower Q ...OR instability ?I may well invest in one of these shortened stubby lumps to play with next year ...possibly on Carl ...who is more accessible ..It may be these shorter lnb feeds which do seem to have a greater capture range for signal...ie wider acceptance angle...may be better suited to Offset dishes..rgdsVS</blockquote>

[QUOTE="Vipersan, post: 994809, member: 325666"] Last Week Nelson loaned me a Zinwell ZCF-D21B to play with .. So today I popped out the ESX241 that deals with linear on Cband (Christina) Keep in mind this lnb is about 3 degrees offset from focus .. I chose for the Test the only transponder I can currently lock at 37.5W - Silverbird .. First checked that it was locked solid ..which it was at around 8.7db .. Then swapped it out with the Zinwell .. Also take note I cannot change the feed rings nor adjust these as the plate is fixed and cut to allow close grouping on the other lnbs .. So ...a straight swap ...positioning the Zinwell to exactly emulate the ESX position wise .. Well .. Nelson was right ...the gain had increased and was reading 9.5 on the F15 .. BUT ...the signal was breaking up all the time and would not lock solid .. So I'm assuming a higher S ...but lower Q ... I'm not well enough atm to stay up ladders for long ...so swapped back to the ESX which again provided a solid lock ...of Silverbird but try as I might I could not get the Sig level above 8.7 .. It may well be that more playing around with the Zinwell might well be effective ...but for now remains a curiosity ? Higher gain ..but lower Q ...OR instability ? I may well invest in one of these shortened stubby lumps to play with next year ... possibly on Carl ...who is more accessible .. It may be these shorter lnb feeds which do seem to have a greater capture range for signal... ie wider acceptance angle...may be better suited to Offset dishes.. rgds VS [/QUOTE]

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