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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 19-72 W     16:41 PDT   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 18 2018-06-18 09:29 PDT
NOAA 15 2018-06-18 07:48 PDT

NOAA 19 2018-06-18 05:13 PDT

NOAA 18 2018-06-17 21:10 PDT

NOAA 15 2018-06-17 19:36 PDT

NOAA 19 2018-06-17 16:55 PDT

NOAA 18 2018-06-17 09:41 PDT

NOAA 15 2018-06-17 08:13 PDT

NOAA 19 2018-06-17 05:24 PDT

NOAA 18 2018-06-16 19:45 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 18 Jun 23:41 18 Jun 16:41 18 Jun 23:58 18 Jun 16:58 72° W 137.10
NOAA 15 19 Jun 02:10 18 Jun 19:10 19 Jun 02:28 18 Jun 19:28 79° W 137.62
NOAA 18 19 Jun 03:58 18 Jun 20:58 19 Jun 04:15 18 Jun 21:15 44° W 137.9125
NOAA 19 19 Jun 11:59  19 Jun 04:59 19 Jun 12:16 19 Jun 05:16 37° E 137.10
NOAA 19 19 Jun 13:40 19 Jun 06:40 19 Jun 13:56 19 Jun 06:56 39° W 137.10
NOAA 15 19 Jun 16:02 19 Jun 09:02 19 Jun 16:33 19 Jun 09:33 44° W 137.62
NOAA 18 19 Jun 16:15 19 Jun 09:15 19 Jun 16:36 19 Jun 09:36 59° E 137.9125
NOAA 19 19 Jun 23:29 19 Jun 16:29 19 Jun 23:47 19 Jun 16:47 86° W 137.10

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.