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Author Topic: ON5KQ DGPS logs  (Read 680 times)

Offline Uli_Bel

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ON5KQ DGPS logs
« on: March 11, 2018, 1245 UTC »
Dear,
had to recover from sickness... so not much radio work in the last weeks.. sorry.

Some more news from the test of very small EWE-ant (2.5m x 5m x 2.5m = 10m wire in total)
- I found out, that my test installation was coupling in various other structures around, degrading the pattern
- Today, I cleaned up the sourrounding of the little Test-EWE ant. as much as possible, taking down various other antennes, wires, etc... have detuned the tower today, etc.

Result: much cleaner pattern and much better performance of the little EWE, also on 300kHz (unexpectedly!)

Will try to make some recording coming night.

Comparison with 170m of wire (running southeast/northwest = beverage on higher frequencies) is very encouraging:
UK beacons are with better S/N on the small EWE, than 170m wire.(main direction of both antennas). Scandinavian stations (90deg off main direction) are weaker on EWE than 170m Beverage.
Back direction is about -10 to -15db to front direction - I think, that is what I can expect of the little EWE.

Will now make some daylight comparisons on 300kHz to the very large EWE (20m x 60m x 20m = 100m wire = 10x larger as little version) - will report results here...

Regards from Belgium,
ON5KQ
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