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

Latest News and Discussion about the use of the DATV transponder on Es'hail-2
Post Reply
User avatar
G4IUG
Posts: 39
Joined: Fri Nov 23, 2018 6:28 pm

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

Post by G4IUG » Sat Jan 26, 2019 3:47 pm

Image
.
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
Ex G6ANG/T and G8EAO

g0mjw
Posts: 2330
Joined: Sat Sep 20, 2014 9:15 am

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

Post by g0mjw » Sat Jan 26, 2019 3:51 pm

Seems a bit long for a feed but you need you adjust the matching probably. Small changes are important at 2.4 GHz.

Mike

Post Reply

Return to “Es’hail-2 - DATV Transponder”