[600MRG] Last night RX antenna test

[Larry]

Band conditions were poor and activity was low so it is hard to 
determine exactly how well the two probes performed. Further testing 
will be needed to pin down differences. Due to limited data, no data 
analysis charts/graphs will be published.

What was obvious was the difference in noise spectrum between the two 
probes. The probe near the house was clearly limited by (weak) noise 
sources from the house and shop. Previously noted was the probes 
susceptibility to the fluorescent lights in the shop and shack. Even 
with all the lights turned off, the house/shop noise dominated.

The probe 200 feet away at the edge of the filed on the other hand 
showed (in the Spectran screen) the familiar local spurious signals from 
around the neighborhood.

As the sun set, and the band "opened", the field probe captured WSPR 
signals earlier than the yard probe did. Later during the evening and 
early night, the field probe maintained a definite 3 dB advantage in S/N 
on all signals from all directions and distances.

Raw data can be downloaded from WSPRnet as usual. The "yard" probe was 
uploaded under the W7IUV call and the "field" probe data was uploaded 
under the WH2XGP call.

73,

Larry - W7IUV / WH2XGP