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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 19-29 E     07:36 PST   Forecast  NWS  Discussion  DIY Microscope: SolderScope 
Add 8 hours for UTC
00Z (~7PM)    NWS 500 MB    12Z  (~7AM) Software: Puppy Linux and WXToImg

NOAA 18 2021-04-13 22:01 PDT
NOAA 15 2021-04-13 19:27 PDT

NOAA 19 2021-04-13 19:18 PDT

NOAA 18 2021-04-13 12:12 PDT

NOAA 18 2021-04-13 10:32 PDT

NOAA 15 2021-04-13 09:43 PDT

NOAA 19 2021-04-13 09:28 PDT

NOAA 19 2021-04-13 07:47 PDT

NOAA 18 2021-04-12 22:13 PDT

NOAA 15 2021-04-12 19:52 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 19 14 Apr 14:36 14 Apr 07:36 14 Apr 14:50 14 Apr 07:50 29° E 137.10
NOAA 19 14 Apr 16:16 14 Apr 09:16 14 Apr 16:33 14 Apr 09:33 37° W 137.10
NOAA 15 14 Apr 16:18 14 Apr 09:18 14 Apr 16:36 14 Apr 09:36 54° W 137.62
NOAA 18 14 Apr 19:00  14 Apr 12:00 14 Apr 19:15 14 Apr 12:15 46° W 137.9125
NOAA 15 15 Apr 02:00 14 Apr 19:00 15 Apr 02:18 14 Apr 19:18 32° E 137.62
NOAA 19 15 Apr 02:03 14 Apr 19:03 15 Apr 02:21 14 Apr 19:21 57° E 137.10
NOAA 15 15 Apr 03:40 14 Apr 20:40 15 Apr 03:54 14 Apr 20:54 30° W 137.62
NOAA 18 15 Apr 04:47 14 Apr 21:47 15 Apr 05:02 14 Apr 22:02 48° E 137.9125

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.