Is there such thing as OTA HDTV without dropouts?
 

Matthew L. Martin wrote:
Alan F wrote:
valvejob wrote:
On Sat, 04 Aug 2007 06:10:58 -0000, wrote:

Do you see any glitches or pulses or other interference on the analog?
One possible cause if the problem affects all channels is some loose
connection somewhere along the antenna lead line.


My analog reception is consistently good.

Stan

Attics can block over 50% of your signal strength. You should have
no lower than 90% signal strength on all the channels you watch. You
need to get that antenna out of the attic and on the roof. Your
problems will go away.

Yes, attics do reduce signal strength. But Stan is only 11 miles from
the huge antenna farm on Mt. Wilson, so he has a clear shot at the
broadcast towers. Attic mounts are usually easier to put in and access.
If he can get good reception from the attic, he should stick with it.

I installed a deep fringe VHF/UHF in my attic in Sutton MA. I was able
to get good watchable pictures from southern NH, through Boston and down
to Providence. I was able to get a barely watchable signal from Mt
Washington, NH when WWMT was there. I would estimate that to be a
distance of ~160 air miles (It's just over 200 driving miles).

That should WMTW, Channel 8.

That is why I always ask for zip code, what model and where the
antenna is before I try to give any specific advice. What someone needs
at 5 miles from the broadcast towers is very different that what someone
needs at 70 miles & over a ridge.

That's because you are genuinely helpful, unlike poor old phil.

Matthew



--
I'm a consultant. If you want an opinion I'll sell you one.
Which one do you want?

--
Posted via a free Usenet account from http://www.teranews.com

Is there such thing as OTA HDTV without dropouts?
 

"Elmo P. Shagnasty" wrote

ok, so Matthew has "won" in that he has shown the world, for now and
forever, that he's not at all interested in the discussion at hand--that
he will stalk phil and use anything and everything phil says, no matter
how innocuous, as a springboard for attacking phil.

He's actually doing a service to mankind. The pompous
blowhards need negative feedback loops, which makes all
of our days a bit sunnier while also helping to stop
global warming.

--oTTo--

"You can only eat a goat once, but you can make cheese
from their milk for years."

-- Stanley Fish, October 25, 1987

Is there such thing as OTA HDTV without dropouts?
 

Otto Bahn wrote:
"Elmo P. Shagnasty" wrote

ok, so Matthew has "won" in that he has shown the world, for now and
forever, that he's not at all interested in the discussion at hand--that
he will stalk phil and use anything and everything phil says, no matter
how innocuous, as a springboard for attacking phil.

He's actually doing a service to mankind. The pompous
blowhards need negative feedback loops, which makes all
of our days a bit sunnier while also helping to stop
global warming.

--oTTo--

"You can only eat a goat once, but you can make cheese
from their milk for years."

"Give a man a fish and feed him for a day. Teach a man to fish and he
will drink beer in his boat all day long".

Matthew

--
I'm a consultant. If you want an opinion I'll sell you one.
Which one do you want?

--
Posted via a free Usenet account from http://www.teranews.com

Is there such thing as OTA HDTV without dropouts?
 

On Aug 4, 12:16 pm, valvejob wrote:
On Sat, 04 Aug 2007 06:10:58 -0000, wrote:

Do you see any glitches or pulses or other interference on the
analog?
One possible cause if the problem affects all channels is some
loose
connection somewhere along the antenna lead line.

My analog reception is consistently good.

Stan

Attics can block over 50% of your signal strength. You should
have
no lower than 90% signal strength on all the channels you watch.

You need to get that antenna out of the attic and on the roof.
Your
problems will go away.

KABC-DT is reporting 65% on the HDTV Wonder in this computer. Several
others are about the same. The best one is 88%. I have no issues at
all with the 64% channels or any of the stronger ones.

I _have_ had a Tektronix spectrum analyzer on the antenna feed and I
know that _all_ the channels have nearly texbook response but it did
take raising the antenna another 5 feet to get it all to behave.

GG

Is there such thing as OTA HDTV without dropouts?
 

Thanks for all the help. I will be trying to fix my reception soon.
I will post my results afterwards.

thanks,
stan

Is there such thing as OTA HDTV without dropouts?
 

Is there such thing as OTA HDTV without dropouts?
 

Have you been able to check the aim of the antenna yet?

Alan F

The last time I was up there, there was a mouse about 2 feet in front
of me. I've been scared to go up there for the longest time.
However, now since the temperature is so hot, I don't think there are
any mouse up there now. I will try to go up today.

Stan

Is there such thing as OTA HDTV without dropouts?
 

On Aug 8, 7:51 am, wrote:
Have you been able to check the aim of the antenna yet?

Alan F

The last time I was up there, there was a mouse about 2 feet in
front
of me. I've been scared to go up there for the longest time.
However, now since the temperature is so hot, I don't think there
are
any mouse up there now. I will try to go up today.

Stan

The mouse was probably more scared than you...

Before I raised the antenna the last 5 feet to clear the house across
the street, the antenna aim was very fussy because of the reflections/
diffractions. The Winegard SquareShooter has a very broad pickup angle
(60 degree) but changing the antenna aim just a few degrees would
cause all sorts of anomalies. I had the fortune of having a spectrum
analyzer to verify my suspicions.

GG

Is there such thing as OTA HDTV without dropouts?
 

On Wed, 08 Aug 2007 14:51:51 -0000 wrote:

| The last time I was up there, there was a mouse about 2 feet in front
| of me. I've been scared to go up there for the longest time.
| However, now since the temperature is so hot, I don't think there are
| any mouse up there now. I will try to go up today.

Take along a non-flammable non-toxic-to-humans aerosol spray can or an
air horn.

--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / |
|------------------------------------/-------------------------------------|

Is there such thing as OTA HDTV without dropouts?
 

FINALLY COMPLETED!!!!!!!!!!!!!

I went up in the attic and looked at the position of the antenna. The
antenna was actually aimed West (it should be aimed North at Mt
Wilson's antenna farm.) I aimed the antenna North and checked the
reception.

The HDTV reception remained at about 75%....however this time it was
consistent. There were no dropouts. Wow! I then checked my analog
station and it actually made some channels worst. Since I have
ReplayTV, I still need analog TV.

I then moved the antenna out of the attic and on the roof. On my
roof, I can actually see the antenna farm where the TV stations
antenna are. I never noticed the Antenna Farm until Alan F mention it
on the thread. I pointed my antenna directly at the Antenna Farm.

Now both my analog TV works fine, and my Digitial HDTV works perfect.
I was watching TV for about an hours and there wasn't even one drop-
out.

AWESOME!!!!