[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Easy to make, low cost omni-directional antennae


I don't have the test data but confirm the excellent receive performance of 
the Lindenblad with the 70cm downlink satellites.
The first one I made was using the classic  4x folded dipole method as shown 
in Satellite Experimenters Handbook by K2UBC.
Made a wooden jig so that all the folded dipoles were the same. Worked well, 
but was tricky to build due to the phasing harness.

The second one was Tony AA2TX's design which he described as a Parasitic 
Lindy. No phasing harness and much easier to build.
With a good pre amp (a kit from G0MRF) I could copy the 80mW cubesat beacons 
at 1 degree elevation.

LO-19 beacon was very strong at low elevation with no pre amp and just a 2 
meters of co-ax into an FT817.


John G7HIA 

Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb