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Not sure I agree with the analogy. I haven't seen Pactors mowing down other users by broadcasting over them. Is this really a problem? Also it's worth pointing
by mmaunder 7y ago
Not sure I agree with the analogy. I haven't seen Pactors mowing down other users by broadcasting over them. Is this really a problem? Also it's worth pointing out that there are separate frequency allocations for voice vs data e.g. 14.0 Mhz to 14.1 is data only and from there up it's voice only. Sure, other data protocols might get stomped on but that applies to any data transmission, not just Pactor.
Also the semi vs bicycle thing isn't really valid. Pactor is around 2.4khz bandwidth while voice is 3khz. So it's more like a bicyle vs another bicycle.
I've posted a longer explanation of the core of the issue in another thread here. This has been going on since the 90s.
- vvanders 7y ago> Pactor is around 2.4khz bandwidth while voice is 3khz The whole reason that voice isn't allowed in the data bands is it's so wide. FT-8 is only 50Hz wide, Morse code is ~100Hz. In the space of a single Pactor you can fit 48 FT-8 transmissions or 20+ morse code. If we wanted progress we could look at repealing the symbol rate limits rather than just scaling up the bandwidth of a signal[1]. [1] http://www.arrl.org/pactor-iii http://www.arrl.org/pactor-iii
- kawfey 7y agoI think "semi" is analogous to "commercial interests" as "bicycle" is to "recreational user".