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Search: Posts Made By: mtownsend
Forum: TV Database Updates 7-Aug-2012, 2:24 AM
Replies: 7
Views: 26,809
Posted By mtownsend
Generally speaking, the database import from the...

Generally speaking, the database import from the FCC and IC is automated. However, both data sources come with a few errors (that is, the database does not always match real-world operating...
Forum: Help With Reception 27-Jul-2012, 11:33 PM
Replies: 8
Views: 14,212
Posted By mtownsend
The links to your report are not working and it...

The links to your report are not working and it looks like the code at the end of the URL is a few digits short. Are you sure you're copying the entire link?

There should be a 16 character code...
Forum: Special Topics 20-Jul-2012, 7:39 PM
Replies: 4
Views: 92,232
Posted By mtownsend
When signals are split in even powers of two (2,...

When signals are split in even powers of two (2, 4, 8, 16, etc.), it's pretty easy to end up with balanced output power. You will find that most splitters on the market come with an even power of...
Forum: Help With Reception 17-Jul-2012, 2:47 AM
Replies: 10
Views: 14,638
Posted By mtownsend
If you are limiting your antenna installation...

If you are limiting your antenna installation options due to an HOA, landlord, or other local rules, you should be aware that there is an over-the-air reception devices ("OTARD") rule provided by the...
Forum: Special Topics 15-Jul-2012, 6:36 PM
Replies: 3
Views: 89,519
Posted By mtownsend
What you are asking for is actually a standard...

What you are asking for is actually a standard 2-way splitter. The part pointed to in your link looks like a very basic tee that doesn't have any impedance matching. Improper impedance matching can...
Forum: Antennas 28-Jun-2012, 6:56 AM
Replies: 1
Views: 14,703
Posted By mtownsend
Testing antennas is a non-trivial task. But...

Testing antennas is a non-trivial task. But before you go down that path, make sure you've isolated the problem first. It is often the case that signal loss is caused by a bad wire, bad connection,...
Forum: General Site Feedback / Discussion 9-Jun-2012, 3:25 AM
Replies: 3
Views: 15,463
Posted By mtownsend
My understanding is that if you don't have a...

My understanding is that if you don't have a television, you don't pay the fees. Only the people who are watching television have to pay.

I'm also not sure if they see the same amount of...
Forum: General Site Feedback / Discussion 8-Jun-2012, 5:13 PM
Replies: 3
Views: 15,463
Posted By mtownsend
Depends on what you mean by fair. It costs a...

Depends on what you mean by fair.

It costs a lot of money to produce shows and run a broadcast network. If some of that cost is offset by licensing fees, there's a certain amount of logic to the...
Forum: TV Database Updates 31-May-2012, 5:29 PM
Replies: 2
Views: 21,021
Posted By mtownsend
We refresh our data from the Industry Canada...

We refresh our data from the Industry Canada database, and as of today (5/31), their database still shows CKVR-TV (ch 3) as "operational" and CKVR-DT (ch 10) as "authorized". This means that in our...
Forum: General Site Feedback / Discussion 29-May-2012, 9:23 PM
Replies: 2
Views: 17,341
Posted By mtownsend
Thanks for the feedback! You've touched upon...

Thanks for the feedback!

You've touched upon a small technical nuance of web-based interactive maps.

The way the map recenters and zooms is essentially a side-effect of displaying the info...
Forum: TV Fool Discussion / Database Updates 7-May-2012, 11:31 PM
Replies: 17
Views: 114,542
Posted By mtownsend
The TVContours.zip file appears to only have data...

The TVContours.zip file appears to only have data up to 6-Oct-2011. The version.txt is newer (19-Mar-2012), but the data files themselves do not appear to be very recent.

Just FYI, we already...
Forum: TV Fool Discussion / Database Updates 5-May-2012, 2:03 AM
Replies: 17
Views: 114,542
Posted By mtownsend
I'm not sure I understand what you're asking for....

I'm not sure I understand what you're asking for. What information would you like to see that is missing from the site?
Forum: Help With Reception 19-Apr-2012, 7:12 PM
Replies: 10
Views: 14,574
Posted By mtownsend
Just for reference, here's a virtual...

Just for reference, here's a virtual representation of where the transmitters are on Mount Wilson (green dots on top of the mountains). This is an approximated view in Google Earth from your...
Forum: Digital TV and Mobile DTV 13-Apr-2012, 5:49 PM
Replies: 4
Views: 40,580
Posted By mtownsend
Intermodulation ratings determine how the amp...

Intermodulation ratings determine how the amp deals with multiple strong incoming signals. If you have two or more strong signals coming into the amp, they produce signal byproducts (undesirable...
Forum: Antennas 24-Mar-2012, 4:26 PM
Replies: 4
Views: 17,945
Posted By mtownsend
Do you know how long your total cable run will...

Do you know how long your total cable run will be? And have you figured out how much signal loss you can tolerate?
Forum: TV Fool Discussion / Database Updates 24-Feb-2012, 8:49 PM
Replies: 1
Views: 19,430
Posted By mtownsend
You should have the option of selecting different...

You should have the option of selecting different channels sets to view. Look for some radio buttons that let you select between "all channels", "digital only", and "analog only". There are...
Forum: FM Fool Discussion/Database Updates 1-Feb-2012, 5:32 AM
Replies: 1
Views: 55,411
Posted By mtownsend
Due to the enormous processing effort needed to...

Due to the enormous processing effort needed to generate the coverage overlays, we usually expect the maps to lag behind the database updates by a few weeks, give or take.

Database updates take...
Forum: General Site Feedback / Discussion 1-Feb-2012, 5:14 AM
Replies: 6
Views: 18,905
Posted By mtownsend
One thing to try is the "Quick Links" drop-down...

One thing to try is the "Quick Links" drop-down menu at the top of the page. From there, select the "New Posts" option. That will usually get you a list of threads that have new posts since your...
Forum: Help With Reception 11-Jan-2012, 5:36 PM
Replies: 3
Views: 15,538
Posted By mtownsend
You might want to check your TV's channel setup...

You might want to check your TV's channel setup to make sure the tuner is set to "air" mode instead of "cable" mode.
Forum: Antennas 10-Jan-2012, 5:38 PM
Replies: 7
Views: 31,323
Posted By mtownsend
I like to think of it as the evolution of more...

I like to think of it as the evolution of more tech-savvy consumers.

Even in the days of analog TV, things like SNR, noise figure, power levels, amp overload, gain, and adjacent channel rejection...
Forum: Help With Reception 6-Jan-2012, 10:02 PM
Replies: 4
Views: 14,294
Posted By mtownsend
Unfortunately, SNR cannot be directly compared to...

Unfortunately, SNR cannot be directly compared to NM.

SNR is a relative measure between the desired signal and some arbitrary noise floor that is unknown to us. That noise floor is a function of...
Forum: TV Database Updates 22-Nov-2011, 12:39 AM
Replies: 2
Views: 20,849
Posted By mtownsend
I guess I'm not clear on what the question is...

I guess I'm not clear on what the question is asking.

Many TV stations use directional antennas. Even though some people might refer to a transmitter as a "1000 kW" source, it does not mean that...
Forum: TV Database Updates 28-Oct-2011, 4:08 PM
Replies: 3
Views: 21,940
Posted By mtownsend
It looks like something was broken in yesterday's...

It looks like something was broken in yesterday's IC database update. We've updated again and most of the stations are back. In today's update, I see that they've migrated a few more digital...
Forum: Antennas 14-Oct-2011, 11:02 PM
Replies: 19
Views: 38,534
Posted By mtownsend
The difference between dBd and dBi is 2.15 dB,...

The difference between dBd and dBi is 2.15 dB, not 2.51. But essentially, you got the right idea. In general, it's unlikely for people to get steady reception on channels that are below about -15...
Forum: Antennas 14-Oct-2011, 9:03 PM
Replies: 19
Views: 38,534
Posted By mtownsend
I think the weights being listed are for...

I think the weights being listed are for individual units as well as for the total package weight (which comes in packs of 10 or 3). It looks like this brochure is aimed at bulk purchasers...
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