If you monitor a freq. you'll see both uplink and downlink traffic giving you the opportunity to log reception of the ground stations and also the the aircraft themselves. Exciting!
Google Earth kml data. The forum will not allow the required format to be posted, so copy the following into a new text document and chanage the extension to kml.
One of my other 'Hobbies' is finding radio sites on Google Earth, and these were not received off-air but copied from some HFDL documents and the co-ordinates converted to something more useful.
My best aircraft reception (so far) from my UK location, has been from just off the coast of Australia whilst monitoring GS-13 in Bolivia on 21997KHz.
Actually some of the coordinates mentioned above are no longer valid.
Coordinates of all stations have been refined in system table version 51 and now they point into relevant transmitter sites much more accurately. For example, I was never able to pinpoint Reykjavik site on satellite imagery with 100% confidence. Now it's clear - it should rather be called Grindavik.
Other examples of sites that have previously been indicated particularly imprecisely: Barrow, Albrook (it's not in Albrook), Krasnoyarsk, Canarias.
There is a 1440 Hz preamble that is visible at the start of each transmission. With very weak signals, somethimes I only see the preamble faintly. Just an observation.
Comments
If you monitor a freq. you'll see both uplink and downlink traffic giving you the opportunity to log reception of the ground stations and also the the aircraft themselves. Exciting!
Ground station:
Aircraft:
Having a flight number you can learn more here:
https://www.flightera.net/en/search
Powers levels should not exceed...
Aircraft 400W peak
Ground Station 6000W peak
GS-04 Riverhead NY
HFDL 01 San Francisco,San Francisco-Dixon CA,USA,38.3711111,-121.7747222
HFDL 02 Molokai,Molokai,Hawaii,21.1861111,-157.1016667
HFDL 03 Reykjavik,Reykjavik-Breidholt,Iceland,64.0908333,-21.8208333
HFDL 04 Riverhead,Riverhead NY,USA,40.8816667,-72.6372222
HFDL 05 Auckland,Auckland-Wiroa Island,New Zealand,-37.0147222,174.8075
HFDL 06 Hat Yai Aero,Hat Yai,Thailand,6.9366667,100.3883333
HFDL 07 Shannon,Shannon-Urlanmore,Ireland,52.7441667,-8.9269444
HFDL 08 Johannesburg,Johannesburg-Tambo,South Africa,-26.1488889,28.2586111
HFDL 09 Barrow,Barrow AK,Alaska,71.2822222,-156.7808333
HFDL 10 Muan,Muan,Korea-South,35.0338889,126.2380556
HFDL 11 Panama Radio,Panama-Albrook,Panama,8.9697222,-79.5502778
HFDL 13 Santa Cruz,Santa Cruz,Bolivia,-17.655,-63.1211111
HFDL 14 Krasnoyarsk,Krasnoyarsk,Russia,56.1677778,92.4847222
HFDL 15 Muharraq,Muharraq,Bahrain,26.2733333,50.6386111
HFDL 16 Agana,Mt Barrigada,Guam,13.4780556,144.8377778
HFDL 17 Telde,Las Palmas-Telde,Canary Islands,27.9383333,-15.3691667
Google Earth kml data. The forum will not allow the required format to be posted, so copy the following into a new text document and chanage the extension to kml.
<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://earth.google.com/kml/2.2">
<Document>
<name>Book1</name>
<open>1</open>
<Placemark>
<name><![CDATA[HFDL 01 San Francisco]]></name>
<description><![CDATA[San Francisco-Dixon CA
USA
]]></description>
<Point><coordinates>-121.7747222,38.3711111, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 02 Molokai]]></name>
<description><![CDATA[Molokai
Hawaii
]]></description>
<Point><coordinates>-157.1016667,21.1861111, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 03 Reykjavik]]></name>
<description><![CDATA[Reykjavik-Breidholt
Iceland
]]></description>
<Point><coordinates>-21.8208333,64.0908333, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 04 Riverhead]]></name>
<description><![CDATA[Riverhead NY
USA
]]></description>
<Point><coordinates>-72.6372222,40.8816667, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 05 Auckland]]></name>
<description><![CDATA[Auckland-Wiroa Island
New Zealand
]]></description>
<Point><coordinates>174.8075,-37.0147222, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 06 Hat Yai Aero]]></name>
<description><![CDATA[Hat Yai
Thailand
]]></description>
<Point><coordinates>100.3883333,6.9366667, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 07 Shannon]]></name>
<description><![CDATA[Shannon-Urlanmore
Ireland
]]></description>
<Point><coordinates>-8.9269444,52.7441667, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 08 Johannesburg]]></name>
<description><![CDATA[Johannesburg-Tambo
South Africa
]]></description>
<Point><coordinates>28.2586111,-26.1488889, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 09 Barrow]]></name>
<description><![CDATA[Barrow AK
Alaska
]]></description>
<Point><coordinates>-156.7808333,71.2822222, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 10 Muan]]></name>
<description><![CDATA[Muan
Korea-South
]]></description>
<Point><coordinates>126.2380556,35.0338889, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 11 Panama Radio]]></name>
<description><![CDATA[Panama-Albrook
Panama
]]></description>
<Point><coordinates>-79.5502778,8.9697222, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 13 Santa Cruz]]></name>
<description><![CDATA[Santa Cruz
Bolivia
]]></description>
<Point><coordinates>-63.1211111,-17.655, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 14 Krasnoyarsk]]></name>
<description><![CDATA[Krasnoyarsk
Russia
]]></description>
<Point><coordinates>92.4847222,56.1677778, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 15 Muharraq]]></name>
<description><![CDATA[Muharraq
Bahrain
]]></description>
<Point><coordinates>50.6386111,26.2733333, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 16 Agana]]></name>
<description><![CDATA[Mt Barrigada
Guam
]]></description>
<Point><coordinates>144.8377778,13.4780556, 0</coordinates></Point>
</Placemark>
<Placemark>
<name><![CDATA[HFDL 17 Telde]]></name>
<description><![CDATA[Las Palmas-Telde
Canary Islands
]]></description>
<Point><coordinates>-15.3691667,27.9383333, 0</coordinates></Point>
</Placemark>
</Document>
</kml>
what freqs did you receive those on?
One of my other 'Hobbies' is finding radio sites on Google Earth, and these were not received off-air but copied from some HFDL documents and the co-ordinates converted to something more useful.
My best aircraft reception (so far) from my UK location, has been from just off the coast of Australia whilst monitoring GS-13 in Bolivia on 21997KHz.
Quite impressive :-)
Regards,
Martin
Monitoring 11387 I see a few missed decodes but the waterfall shows them to be weak and laden with multi-path so perhaps that is the cause
Sorry for the forum software. I could be spending 100% of my time just trying to get it fixed..
here's a way to post a KML file... readers can open, cut/paste it back to txt and save that as kml
Actually some of the coordinates mentioned above are no longer valid.
Coordinates of all stations have been refined in system table version 51 and now they point into relevant transmitter sites much more accurately. For example, I was never able to pinpoint Reykjavik site on satellite imagery with 100% confidence. Now it's clear - it should rather be called Grindavik.
Other examples of sites that have previously been indicated particularly imprecisely: Barrow, Albrook (it's not in Albrook), Krasnoyarsk, Canarias.
Handy links:
SAN FRANCISCO - CALIFORNIA https://goo.gl/maps/txaTzm3zKJB2
MOLOKAI - HAWAII https://goo.gl/maps/FWSMxvgBEhT2
REYKJAVIK - ICELAND https://goo.gl/maps/11urqkRP9S52
RIVERHEAD - NEW YORK https://goo.gl/maps/hWGAk84AZqD2
AUCKLAND - NZ https://goo.gl/maps/JzmSC92QA242
HAT YAI - THAILAND https://goo.gl/maps/V79JP5DxJRv
SHANNON - IRELAND https://goo.gl/maps/fZ94G1VVBvH2
JOHANNESBURG - SOUTH AFRICA https://goo.gl/maps/qbzVyo32HBq
BARROW - ALASKA https://goo.gl/maps/cP8WmgyUXET2
MUAN - SOUTH KOREA https://goo.gl/maps/6SkzcLg8FEx
ALBROOK - PANAMA https://goo.gl/maps/ctxhzdVgVB12
SANTA CRUZ - BOLIVIA https://goo.gl/maps/bb7myEbqsNR2
KRASNOYARSK - RUSSIA https://goo.gl/maps/ZXWJfaPMFJG2
AL MUHARRAQ - BAHRAIN https://goo.gl/maps/MeH4TPUs1kN2
AGANA - GUAM https://goo.gl/maps/6ZPBCFwrEmJ2
CANARIAS - SPAIN https://goo.gl/maps/4pDtJFJERS12
Hi Tomasz,
Thanks for the corrected locations.
However I can't open the short links you provided.
"Dynamic Link Not Found
Short URL (https://goo.gl/maps) not found
If you are the developer of this app, ensure that your Dynamic Links domain is correctly configured and that the path component of this URL is valid."
A few on my list had puzzled me for some time, so your updates are much appreciated, as are the rest of your contributions.
Regards,
Martin
The link target URLs don't contain the part after the last slash. I tried to add it manually - then it works.
Ah OK, I don't know why that is being stripped off.
I've copied it to notepad and saved it as text.
When I copy and paste from the new document it's OK.
Maybe this forum stripped it ?
Thanks,
Martin
I fixed those links.
There is a 1440 Hz preamble that is visible at the start of each transmission. With very weak signals, somethimes I only see the preamble faintly. Just an observation.