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Es’hail-2 & 2.4Ghz uplink Helical Feed from Winkler

Posted: Sat Jan 26, 2019 3:47 pm
by G4IUG
Image
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Es’hail-2 & 2.4Ghz uplink Helical Feed from Winkler

Testing this using a Narda 1.7-4.2Ghz directional coupler, a HP 8566B analyser and a G4FAW tracking generator, gives a broad untuned return loss of less than 5dB. The insides look like the attached image.

This feed features on a PowerPoint that pushed this satellite.

Any suggestions or comments ?

Thanks

Dave G4IUG

Re: Es’hail-2 & 2.4Ghz uplink Helical Feed from Winkler

Posted: Sat Jan 26, 2019 3:51 pm
by g0mjw
Seems a bit long for a feed but you need you adjust the matching probably. Small changes are important at 2.4 GHz.

Mike