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Results tagged with propagation
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Questions about RF propagation including measurements, beacons, modes (ionospheric, tropospheric, ground wave), etc.
2
votes
What is the best time of day/Band to make a contact with Hawaii from the East Coast?
Start with the ARRL propagation forecasts. These are updated every month and there is a specific forecast for the path from the East coast to Hawaii. … http://www.arrl.org/propagation
For a customized prediction, use the online VOACAP propagation predictor here:
http://www.voacap.com/
Finally, you may want to check in with the 3905 Century Club nets …
- 2,023
9
votes
Why do concurrent FM signals not mix together?
This is called the "FM capture effect" and is mostly a characteristic of the demodulator design. Demodulators with a strong capture effect detect the zero crossings of the signal. The zero crossings a …
- 2,023
3
votes
What bands and modes will give me voice at 3,000 miles?
For long range voice contacts that work all the time, day or night, you need a satellite phone. Especially if you are considering emergency use, that is your best bet.
If you want to do the same thin …
- 2,023