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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 19-76 E     22:06 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 2025-04-29 20:35 PDT
NOAA 15 2025-04-29 18:56 PDT

NOAA 18 2025-04-29 12:17 PDT

NOAA 19 2025-04-29 10:38 PDT

NOAA 15 2025-04-29 09:11 PDT

NOAA 18 2025-04-29 00:01 PDT

NOAA 18 2025-04-28 22:21 PDT

NOAA 15 2025-04-28 19:21 PDT

NOAA 18 2025-04-28 12:31 PDT

NOAA 19 2025-04-28 10:51 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 19 30 Apr 05:06 29 Apr 22:06 30 Apr 05:18 29 Apr 22:18 76° E 137.10
NOAA 18 30 Apr 06:47 29 Apr 23:47 30 Apr 07:00 30 Apr 00:00 50° W 137.9125
NOAA 15 30 Apr 15:43 30 Apr 08:43 30 Apr 15:56 30 Apr 08:56 68° E 137.62
NOAA 19 30 Apr 19:03  30 Apr 12:03 30 Apr 19:16 30 Apr 12:16 51° W 137.10
NOAA 18 30 Apr 19:04 30 Apr 12:04 30 Apr 19:18 30 Apr 12:18 53° E 137.9125
NOAA 15 01 May 03:08 30 Apr 20:08 01 May 03:20 30 Apr 20:20 53° W 137.62
NOAA 19 01 May 04:53 30 Apr 21:53 01 May 05:05 30 Apr 22:05 63° E 137.10
NOAA 18 01 May 06:34 30 Apr 23:34 01 May 06:47 30 Apr 23:47 62° 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.