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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 18-68 E     08:07 PST   Forecast  NWS  Discussion Satellite Receiver: Hamtronics R139
Add 8 hours for UTC
00Z (~7PM)    NWS 500 MB    12Z  (~7AM) Software: Puppy Linux and WXtoImg

NOAA 15 2018-02-19 06:28 PST
NOAA 19 2018-02-19 05:21 PST

NOAA 18 2018-02-18 19:49 PST

NOAA 15 2018-02-18 18:15 PST

NOAA 19 2018-02-18 15:20 PST

NOAA 18 2018-02-18 08:19 PST

NOAA 15 2018-02-18 06:53 PST

NOAA 19 2018-02-18 05:32 PST

NOAA 19 2018-02-18 03:51 PST

NOAA 15 2018-02-17 18:41 PST


Updated Satellite Predictions for Port Williams, Washington, U. S. A.

Start of Pass Image Available Maximum Elevation Frequency
Satellite UTC local time UTC local time (east or west) MHz
NOAA 18 19 Feb 16:07 19 Feb 08:07 19 Feb 16:21 19 Feb 08:21 68° E 137.9125
NOAA 15 19 Feb 16:07 19 Feb 08:07 19 Feb 16:23 19 Feb 08:23 35° W 137.62
NOAA 19 19 Feb 23:08 19 Feb 15:08 19 Feb 23:23 19 Feb 15:23 81° E 137.10
NOAA 15 20 Feb 01:50  19 Feb 17:50 20 Feb 02:05 19 Feb 18:05 79° E 137.62
NOAA 18 20 Feb 03:37 19 Feb 19:37 20 Feb 03:52 19 Feb 19:52 46° W 137.9125
NOAA 19 20 Feb 13:07 20 Feb 05:07 20 Feb 13:22 20 Feb 05:22 51° W 137.10
NOAA 15 20 Feb 15:42 20 Feb 07:42 20 Feb 16:11 20 Feb 08:11 55° W 137.62
NOAA 18 20 Feb 15:56 20 Feb 07:56 20 Feb 16:13 20 Feb 08:13 55° 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.