Questions tagged [map]
7 questions
18
votes
2 answers
How do I make a RF propagation map for a repeater?
Let's say I have a repeater. Knowing all of the information about antenna height and gain in each direction, as well as power, how can I create a map similar to this map I saw of a repeater in Illinois?
Free options are always better!
Skyler 440
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Is there a KML or similar file that shows all of the CQ Zones?
I'm wanting to view the CQ Zones in Google Earth, and I understand that a KML file will allow me to do so. Is there a place where I can get a KML file that shows all of the CQ Zones?
PearsonArtPhoto
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10
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1 answer
What's the difference between "maximum usable" and "critical" frequencies?
In discussing HF ionospheric propagation, you hear about both "critical" and "maximum usable" frequencies. For example:
Above the critical frequency, the ionosphere is unable to refract the signal back to Earth and it escapes to space. The critical…
natevw - AF7TB
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5
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How to obtain raw data for Global Real Time foF2 Map
Note!!!!: I am not looking for help with how make a map using Google Maps API (that part is done). I need help with finding data.
I am building a shortwave radio/HF listening log book online, and it uses Google Maps for the plotting of receiving and…
cj5
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3
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3 answers
Convert maidenhead grid square to lat/long in Excel?
I have a list of maidenhead grid squares in an Excel sheet that I want to convert to latitude and longitude. I want to keep it as simple as possible. Does anyone know of a formula to convert from maidenhead to lat/long?
user6587
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2 answers
Contact Logging Software and Geospatial Mapping
Does anyone know of software and/or techniques to effectively and efficiently to:
Merge contact logging with displaying location information on a digital map; e.g. Google Earth/Map
I would like to be able, in some fashion, record locations of…
S. Mike Bruce KM4JLX
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1 answer
Map APRS data on Windows laptop using Kenwood D710's internal TNC
My D710G has APRS built in. How can I get that data displayed on a laptop?
Brad Mace
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