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Search: Posts Made By: AntAltMike
Forum: HDTV Technical   08-22-2015, 08:46 AM
Replies: 69
Views: 1,413
Posted By AntAltMike
But realistically it must be at least 40dB...

But realistically it must be at least 40dB because it was designed to be a cable TV insertion trap, so it had to be able to weaken those channels enough to facilitate locally generated, analog NTSC...
Forum: HDTV Technical   08-21-2015, 10:42 PM
Replies: 69
Views: 1,413
Posted By AntAltMike
Channel Vision's 3102-105 is an off-the-shelf...

Channel Vision's 3102-105 is an off-the-shelf item that will rough up UHF channels 49 and 50 a little, but if you don't need those, it probably gets you 40dB of rejection where you need it in the mid...
Forum: Local HDTV Info and Reception   08-19-2015, 09:41 AM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
You should not overlook the fact that channels...

You should not overlook the fact that channels 7.1 and 9.1 are really broadcast on VHF channels 7 and 9, whereas channels 4.1 and 5.1 are virtual channels that are broadcast on UHF channels 48 and 36...
Forum: HDTV Technical   08-17-2015, 01:48 AM
Replies: 51
Views: 4,615
Posted By AntAltMike
There is no legal requirement that masts be...

There is no legal requirement that masts be grounded according to code, and the reports of insurance collection complications are always undocumented and unreferenced .

If I wanted the mast...
Forum: HDTV Technical   08-13-2015, 06:25 PM
Replies: 15
Views: 266
Posted By AntAltMike
I have never had any cheap F-81 adaptors that...

I have never had any cheap F-81 adaptors that would not permit center wire penetration, but I have had expensive, premium quality ones that did, because the better ones sometimes use a seizure sleeve...
Forum: Local HDTV Info and Reception   07-29-2015, 08:10 PM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
What is coming on 54-3, presently labeled...

What is coming on 54-3, presently labeled WNUV-GR? Will it be Grit? They just relabeled 54-2 to be WNUV-GE, which is surely an abbreviation for GetTV
Forum: HDTV Technical   07-23-2015, 09:45 AM
Replies: 20
Views: 314
Posted By AntAltMike
What do we know about the algorith's...

What do we know about the algorith's incorporation of distance? Might it factor in terrain and inverse square dissipation and curvature but not factor in the vertical beam pattern, making it...
Forum: Local HDTV Info and Reception   07-18-2015, 08:51 PM
Replies: 6
Views: 143
Posted By AntAltMike
I've been a professional antenna installer in...

I've been a professional antenna installer in this market for over two decades and have serviced over a hundred multiple dwelling unit complexes and done several dozen residential installations. I...
Forum: Local HDTV Info and Reception   07-18-2015, 06:01 PM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
Try Craigslist, or ask your friends. A...

Try Craigslist, or ask your friends. A professional installer prices his services to make an amount of money for an amount of work, so they aren't going to let you save much if anything by buying...
Forum: Local HDTV Info and Reception   07-17-2015, 05:56 AM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
My TV fool report does not specify an antenna. I...

My TV fool report does not specify an antenna. I just viewed an image of a CM3020 and while you don't need its VHF lowband (2-6) capability, that is not hurting you UNLESS YOU ARE USING A PREAMP...
Forum: Local HDTV Info and Reception   07-17-2015, 01:21 AM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
Are you sure it isn't a ChannelMaster 4228? If...

Are you sure it isn't a ChannelMaster 4228? If so, that is a UHF (channels 14-69) antenna that is not designed to receive channels 2-13, though the original model that uses two separate reflector...
Forum: Local HDTV Info and Reception   07-14-2015, 05:02 PM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
We need a TV fool report for your exact location...

We need a TV fool report for your exact location as well as a physical description of your situation, like home or apartment, and which side your unit is on if you are in an apartment house, whether...
Forum: Local HDTV Info and Reception   07-14-2015, 06:36 AM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
DirecTV doesn't carry all the local subchannels,...

DirecTV doesn't carry all the local subchannels, and I think some of them are carried as Network programs rather than local.

You'll get more responses if you ask at DBSTalk.com . Have you tried...
Forum: Cable, Digital Cable - Non-HDTV   07-08-2015, 12:53 AM
Replies: 4
Views: 111
Posted By AntAltMike
You can't legally use "public viewing" account...

You can't legally use "public viewing" account receivers and modulate them for free-to-guest or multiple-dwelling-unit distribution. You also cannot distribute high definition signals as unencrypted...
Forum: HDTV Technical   07-02-2015, 04:27 PM
Replies: 12
Views: 254
Posted By AntAltMike
Each strong local UHF signal renders two cable...

Each strong local UHF signal renders two cable channels undesirable, as the cable TV channels from 65 and up are on are off-shifted by 2MHz from the nearest broadcast channels. I recently found...
Forum: HDTV Technical   07-01-2015, 02:53 PM
Replies: 12
Views: 254
Posted By AntAltMike
How is it that you are the person servicing this...

How is it that you are the person servicing this system?

Who designed and installed it? How long ago.? Has it run reliably previously?

I don't suppose you have a spare $20,000 blonder tongue...
Forum: Local HDTV Info and Reception   06-26-2015, 11:21 AM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
I haven't been able to get mentally attuned to...

I haven't been able to get mentally attuned to Decades (Baltimore 13.2) since it went from pre-launch binge to whatever juke box scheduling format it is on now. It seems that when they pick an old...
Forum: HDTV Technical   06-22-2015, 06:29 PM
Replies: 18
Views: 306
Posted By AntAltMike
I think that more people have had trouble...

I think that more people have had trouble inserting wire into premium grade F-81s because while the cheap ones use a couple of little, "knuckle-like" single point contacts, the better ones use...
Forum: HDTV Technical   06-22-2015, 03:13 PM
Replies: 18
Views: 306
Posted By AntAltMike
Sounds like a preamp not getting its DC voltage...

Sounds like a preamp not getting its DC voltage reliably to me.

A decade or so ago at one of my accounts, before the spotbeams carried locals, some nitwit DirecTV installer set up two identical,...
Forum: Local HDTV Info and Reception   06-22-2015, 02:30 PM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
Update: 14.1 WFDC: +6 Minutes 23.1 WDDN: Time...

Update:
14.1 WFDC: +6 Minutes
23.1 WDDN: Time warp is regrettably stable. Still 35 calender years off, daily time still six hours off.
24.1 WUTB: Unfortunately, I no longer receive it with my new...
Forum: HDTV Technical   06-14-2015, 03:59 PM
Replies: 51
Views: 4,615
Posted By AntAltMike
I just moved the antenna on my own rooftop...

I just moved the antenna on my own rooftop yesterday and didn't worry about grounding it. You'll get better reception on your rooftop.
Forum: HDTV Technical   06-14-2015, 09:49 AM
Replies: 51
Views: 4,615
Posted By AntAltMike
I don't think there is a practical or economical...

I don't think there is a practical or economical way to test it. Back a decade ago, when this topic was more intensively discussed, electricians said that the equipment used to actually measure the...
Forum: HDTV Technical   06-13-2015, 06:43 PM
Replies: 51
Views: 4,615
Posted By AntAltMike
Incorrect.... I think. There is no requirement...

Incorrect.... I think. There is no requirement that cold water pipes be continuously metallic from the house to the well. If the cold water pipe is "bonded" to the ground electrode system, then...
Forum: HDTV Technical   06-13-2015, 03:40 PM
Replies: 51
Views: 4,615
Posted By AntAltMike
The inside water pipe makes an excellent ground...

The inside water pipe makes an excellent ground as long as there are no plastic repair sections between where you connect to it and where it enters the building.

But it no longer satisfies the...
Forum: Local HDTV Info and Reception   06-13-2015, 09:27 AM
Replies: 14,137
Views: 1,588,226
Posted By AntAltMike
If a low powered UHF channel 22 transmitter in...

If a low powered UHF channel 22 transmitter in the Washington/Baltimore market uses 22-1 as its virtual channel, then that guide channel number will not be available when the scan gets to WMPT's real...
Showing results 1 to 25 of 3707

 
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