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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 15-55 W     09:18 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 2021-08-02 21:48 PDT
NOAA 18 2021-08-02 11:59 PDT

NOAA 15 2021-08-02 09:43 PDT

NOAA 19 2021-08-02 09:30 PDT

NOAA 19 2021-08-02 07:50 PDT

NOAA 18 2021-08-01 22:01 PDT

NOAA 15 2021-08-01 19:53 PDT

NOAA 19 2021-08-01 19:31 PDT

NOAA 18 2021-08-01 12:11 PDT

NOAA 15 2021-08-01 10:09 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 03 Aug 16:18 03 Aug 09:18 03 Aug 16:33 03 Aug 09:33 55° W 137.62
NOAA 19 03 Aug 16:18 03 Aug 09:18 03 Aug 16:36 03 Aug 09:36 45° W 137.10
NOAA 18 03 Aug 18:47 03 Aug 11:47 03 Aug 19:02 03 Aug 12:02 56° W 137.9125
NOAA 15 04 Aug 02:00  03 Aug 19:00 04 Aug 02:20 03 Aug 19:20 31° E 137.62
NOAA 19 04 Aug 02:05 03 Aug 19:05 04 Aug 02:23 03 Aug 19:23 51° E 137.10
NOAA 15 04 Aug 03:39 03 Aug 20:39 04 Aug 03:53 03 Aug 20:53 32° W 137.62
NOAA 18 04 Aug 04:34 03 Aug 21:34 04 Aug 04:49 03 Aug 21:49 36° E 137.9125
NOAA 18 04 Aug 06:15 03 Aug 23:15 04 Aug 06:29 03 Aug 23:29 29° W 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.