[time-nuts] Where 15 MHz?
lists at rtty.us
Tue Dec 14 03:11:16 UTC 2010
It turns out that 15 MHz x N (I forget the N) makes a nice LO in the 900 MHz range for an base station. That's what drove the choice of 15 over 5 or 10 MHz. I believe there was a bit of the "all frequencies are equally cheap in your volumes" sales pitch involved as well.
On Dec 13, 2010, at 7:10 PM, Magnus Danielson wrote:
> Fellow time-nuts,
> A quick question to settle my curiosity...
> Which mobile application uses 15 MHz?
> I know that GSM uses 13 MHz, but I can't recall which one uses 15 MHz.
> I'd be happy if someone would care to enlighten me.
> We have also seen 19,6608 MHZ being in use, and recently seen a description for it, even if I fail to recall it.
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