Quote:
Originally Posted by Radio Wrangler
The aeronautical people have just had to buy new radios with 8.33kHz channel spacing.. a government/eu subsidy has only just ended.
This has just added a lot more channels than the 25kHz existing spacing.
1) plane owners do not want to buy yet more new radios
2) movement to data rather than more talking is seen as the future
3) any new scheme needs global adoption... planes fly around, don'tcha know!
While ITU-R sees anything above 30MHz as non-global, the nature of aircraft makes it inevitably global. The 144-146 amateur band is a global allocation with expansion in some regions so it would take a global agreement to shift it.
David
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I've seen no evidence that the proposed 2-metre 'grab' was intended for legacy analog human-to-human voice-comms; my understanding was that it was intended for spread-spectrum digital data/navigation use by drones, UAVs etc.