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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 19-75 E     05:08 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 2017-09-20 19:57 PDT
NOAA 15 2017-09-20 18:55 PDT

NOAA 19 2017-09-20 16:50 PDT

NOAA 19 2017-09-20 15:11 PDT

NOAA 18 2017-09-20 08:28 PDT

NOAA 15 2017-09-20 07:31 PDT

NOAA 19 2017-09-20 05:20 PDT

NOAA 18 2017-09-19 20:09 PDT

NOAA 15 2017-09-19 19:20 PDT

NOAA 19 2017-09-19 15:23 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 19 21 Sep 12:08 21 Sep 05:08 21 Sep 12:23 21 Sep 05:23 75° E 137.10
NOAA 18 21 Sep 15:16 21 Sep 08:16 21 Sep 15:30 21 Sep 08:30 39° E 137.9125
NOAA 15 21 Sep 15:46 21 Sep 08:46 21 Sep 16:00 21 Sep 09:00 43° W 137.62
NOAA 18 21 Sep 16:57  21 Sep 09:57 21 Sep 17:10 21 Sep 10:10 35° W 137.9125
NOAA 19 21 Sep 21:58 21 Sep 14:58 21 Sep 22:11 21 Sep 15:11 34° E 137.10
NOAA 19 21 Sep 23:38 21 Sep 16:38 21 Sep 23:52 21 Sep 16:52 40° W 137.10
NOAA 15 22 Sep 01:29 21 Sep 18:29 22 Sep 01:43 21 Sep 18:43 65° E 137.62
NOAA 18 22 Sep 02:45 21 Sep 19:45 22 Sep 03:00 21 Sep 20:00 75° 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.