extending FM band down to 76 MHz
Sun Aug 2 12:35:29 EDT 2009
<<On Sun, 2 Aug 2009 09:19:01 -0700 (PDT), "Peter Q. George" <firstname.lastname@example.org> said:
> I think that the FCC made a big mistake in cleaning out UHF Channels
> 52-69 for land-mobile, in the first place. Those channels would
> have had ample space so that ALL full-powered TV stations could go
> DTV with plenty of room to spare for NEW stations and all LPTV's and
> translators. VHF-hi would be fine for other uses other than TV.
Wrong on both counts, unfortunately.
A minimally-efficient VHF-high antenna is still 16 inches long, which
is far too long for any mobile device today. A quarter-wave at 750
MHz less than four inches, making antenna-size constraints -- and
multipath -- far less of an issue for device manufacturers. That's
why Qualcomm MediaFLO operates on channel 55: it could be reasonably
received on devices and antennas designed for the cellular (850-900
The government simply would not have received any revenue from
auctioning off any other part of the TV spectrum -- it's useless to
anyone other than broadcasters.
> VHF-lo (5 and 6 would be perfect for the expanded FM).
I have an FM tuner that goes down that low (Sony ICF-1000T) but most
people don't. The installed base of FM radios is in the billions. I
think the ship has already sailed for this proposal, unfortunately.
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