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

Next up:  NOAA 15-82 E     19:31 PDST   Forecast  NWS  Discussion Satellite Receiver: Hamtronics R139
Add 7 hours for UTC
00Z (~7PM)    NWS 500 MB    12Z  (~7AM) Software: Puppy Linux and WXtoImg

NOAA 15 2025-08-18 20:29 PDT
NOAA 15 2025-08-18 18:50 PDT

NOAA 15 2025-08-18 09:06 PDT

NOAA 15 2025-08-18 09:06 PDT

NOAA 15 2025-08-17 19:16 PDT

NOAA 15 2025-08-17 09:31 PDT

NOAA 15 2025-08-17 09:31 PDT

NOAA 15 2025-08-16 19:42 PDT

NOAA 15 2025-08-16 08:20 PDT

NOAA 15 2025-08-16 08:20 PDT


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 15 25 Aug 02:31 24 Aug 19:31 25 Aug 02:44 24 Aug 19:44 82° E 137.62
NOAA 19 25 Aug 05:32 24 Aug 22:32 25 Aug 05:45 24 Aug 22:45 75° W 137.10
NOAA 18 25 Aug 06:46 24 Aug 23:46 25 Aug 07:00 25 Aug 00:00 52° W 137.9125
NOAA 15 25 Aug 16:21  25 Aug 09:21 25 Aug 16:34 25 Aug 09:34 53° W 137.62
NOAA 19 25 Aug 17:49 25 Aug 10:49 25 Aug 18:02 25 Aug 11:02 35° E 137.10
NOAA 18 25 Aug 19:03 25 Aug 12:03 25 Aug 19:17 25 Aug 12:17 52° E 137.9125
NOAA 19 25 Aug 19:30 25 Aug 12:30 25 Aug 19:42 25 Aug 12:42 39° W 137.10
NOAA 15 26 Aug 02:05 25 Aug 19:05 26 Aug 02:18 25 Aug 19:18 51° E 137.62

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.