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Weather Satellite Images
 With color precipitation enhancement, map color and 10° grid. 
Produced by Thomas Williams, K9AC at Port Williams, Washington, USA 48° N 123° W 

Next up:  NOAA 15-37 E     08:34 PDT   Forecast  NWS  Discussion  DIY Microscope: SolderScope 
Add 7 hours for UTC
00Z (~7PM)    NWS 500 MB    12Z  (~7AM) Software: Puppy Linux and WXToImg

NOAA 18 2021-10-18 23:15 PDT
NOAA 18 2021-10-18 21:36 PDT

NOAA 15 2021-10-18 20:22 PDT

NOAA 19 2021-10-18 19:18 PDT

NOAA 18 2021-10-18 11:46 PDT

NOAA 19 2021-10-18 09:28 PDT

NOAA 15 2021-10-18 08:59 PDT

NOAA 18 2021-10-17 21:48 PDT

NOAA 15 2021-10-17 20:47 PDT

NOAA 19 2021-10-17 19:30 PDT


Updated Satellite Predictions for Port Williams, Washington, USA

Start of Pass Image Available Maximum Elevation Frequency
Satellite UTC local time UTC local time (east or west) MHz
NOAA 15 19 Oct 15:34 19 Oct 08:34 19 Oct 15:47 19 Oct 08:47 37° E 137.62
NOAA 19 19 Oct 16:16 19 Oct 09:16 19 Oct 16:30 19 Oct 09:30 53° W 137.10
NOAA 18 19 Oct 18:34 19 Oct 11:34 19 Oct 18:48 19 Oct 11:48 55° E 137.9125
NOAA 19 20 Oct 02:03  19 Oct 19:03 20 Oct 02:17 19 Oct 19:17 42° E 137.10
NOAA 15 20 Oct 02:55 19 Oct 19:55 20 Oct 03:08 19 Oct 20:08 56° E 137.62
NOAA 18 20 Oct 04:22 19 Oct 21:22 20 Oct 04:34 19 Oct 21:34 28° E 137.9125
NOAA 18 20 Oct 06:02 19 Oct 23:02 20 Oct 06:15 19 Oct 23:15 39° W 137.9125
NOAA 19 20 Oct 16:04 20 Oct 09:04 20 Oct 16:18 20 Oct 09:18 56° W 137.10

QFH Self Phasing Receiving Antenna


Self-Phasing Quadrifilar Helix

Satellite image data is received with this antenna.
The support structure is made of plastic pipe. 
Helical elements are loops of LMR-400 coaxial cable. 
RG-8 Mini-Foam coax is used for the balun and feedline.
Dimensions are from John Coppens' Antenna Calculator.
Height is 4 meters above ground at the top.