Thanks Duane/Dave/Marvin,
A lot of help. Enjoyed Marvins spray.
Usually I,m tied up in AirCooled VW newsgroups and you get exasperated souls
there as well.
I have to confess the last time I was that cynical was when Dr Who opened a
sliding door by using as a button a 2N3055 on a heatsink and shot an alien
with a Grid Dip Oscillator.
Probably giving my age away there. I mentioned a 6X4 rectifier to a bloke
at work and he hadn,t heard of it!!!!.
I,ll be more exact next time. I,m down in Australia where we use PAL and
antenna is UHF only, no VHF,no FM.
Cheers
John

"Allodoxaphobia" wrote in message
...
On Thu, 19 Jul 2007 08:25:19 -0700, Dave Platt wrote:

Although most TV stations have chosen to use UHF-band for their
digital signals, that is not universally true. Some stations whose
primary (NTSC analog) transmitters are in the VHF high-band (channels
7 through 13) have decided to use their VHF channels to carry ATSC
digital, after the Big Switchover occurs. In a very few areas of the
country, there's even a station or two which will be using its VHF
low-band frequency slot (channel 2 through 5) for ATSC. The FCC has
recommended against using VHF lowband channel 6 for ATSC, in order to
prevent interference with the bottom of the FM broadcast band.

I believe that these stations are electing VHF for ATSC, rather than
using their "interim" UHF channel assignment, because they'll be able
to get better ATSC signal coverage that way. They can operate at
higher power on the VHF band than they could on UHF (likely because
their interim UHF frequency assignment has co- or adjacent-channel
users not all that far away).

In most areas of the country, a good UHF antenna will suffice for ATSC
digital. In a few (e.g. SF bay area) you'll still need to have an
antenna capable of both UHF, and VHF high-band, to get all of the
local stations... and in one or two areas you'll still need a
full-range VHF-lowband/VHF-highband/UHF antenna such as is used today.
Some people who have bought "digital TV" or "HDTV" antennas (UHF-only)
are likely to be annoyed, when they lose a channel or two on The Big
Day.

A nationwide table of the ATSC frequency assignments can be found at

http://hraunfoss.fcc.gov/edocs_publi...C-06-150A1.pdf

So all this bu$$sh!t about freeing up spectrum, or improving reception,
or yaa-daa yaa-daa yaa-daa is just that - BU$$SH!T!

This is no better than a LandFill Utilization Project.

It is usually a disaster when the government gets involved in promoting
"technology".

I've just about had it, anyway, with the crap being pushed out over the
airwaves. They keep targeting the ever diminishing lowest common
denominator. So, I think when _their_ Big Day comes, it'll be _my_
Last Day.

Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
38.24N 104.55W | @ config.com | Jonesy | OS/2
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