Because I have no hardware to check for the SWR, I tried many different kind of antennas ,looking for the best performance.
I home-browed many kind of antenna for the uplink, eg, patch antenna a helical antenna with flat matching strip etc. the performance was poor.
The last one I was built is a helical antenna with a triangle strip. the perform is much better comparing to other antennas .
My signal report jumps to 58-59 !!.
I built it around an empty toothpast pump tube
Space between turns 28 mm.
Number of turn 3.
The strip is right angle trangle 71mm*17mm one corner attached to to the SMA pin on flat Alu reflector - dimention 12 cm * 12cm .
The tube clued by epoxy at the front side ,plus the nozzle of the tube pass throught a hole at the center of the reflector.
Dish =1 meter.
Here are the links I was used.
73 de Nader / st2nh