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Search: Posts Made By: rabbit73
Forum: Antennas 23-May-2019, 10:42 PM
Replies: 22
Views: 69,832
Posted By rabbit73
Thank you for the interesting report, Joe. ...

Thank you for the interesting report, Joe.

I don't like the idea of "Big Brother" in my TV. I would only want to watch ATSC 3.0 OTA without an internet connection.
Forum: Antennas 23-May-2019, 5:14 PM
Replies: 22
Views: 69,832
Posted By rabbit73
Yes, their channels are 8 MHz wide instead of 6...

Yes, their channels are 8 MHz wide instead of 6 MHz like our channels.

https://forum.tvfool.com/attachment.php?attachmentid=3405&stc=1&d=1558635321

Source:...
Forum: Antennas 22-May-2019, 6:47 PM
Replies: 22
Views: 69,832
Posted By rabbit73
https://forum.tvfool.com/attachment.php?attachment...

https://forum.tvfool.com/attachment.php?attachmentid=3404&d=1558552338

XB16A
https://www.aerialsandtv.com/onlineaerials.html#XB16s
...
Forum: Help With Reception 21-May-2019, 1:50 PM
Replies: 7
Views: 19,823
Posted By rabbit73
I thank all of you for your prayers and support. ...

I thank all of you for your prayers and support.

Best regards,
rabbit
Forum: Help With Reception 21-May-2019, 2:37 AM
Replies: 7
Views: 19,823
Posted By rabbit73
Thank you for your confidence in my ability to...

Thank you for your confidence in my ability to make useful tests. I will not be able to test the new CM balun at this time because this forum is no longer enjoyable for me and my wife has serious...
Forum: Antennas 10-May-2019, 8:04 PM
Replies: 30
Views: 68,998
Posted By rabbit73
Thank you for making the thorough tests; you are...

Thank you for making the thorough tests; you are on the right track.

Interference problems can be difficult to solve. Interference can be conducted, radiated, or both and you can have more than...
Forum: Help With Reception 10-May-2019, 5:28 PM
Replies: 23
Views: 92,560
Posted By rabbit73
Thank you for your kind words. I keep learning,...

Thank you for your kind words. I keep learning, and I try to pass it on.

A good example of noise interference on VHF-Low is the problem Johnsonbrits is having with being able to receive channel...
Forum: Help With Reception 10-May-2019, 2:40 AM
Replies: 23
Views: 92,560
Posted By rabbit73
You almost have it right. Since the noise level...

You almost have it right. Since the noise level IS higher on VHF, you must have a stronger signal on VHF than UHF to have an SNR of at least 15 dB above the noise.

One of the problems with VHF-Low...
Forum: Special Topics 10-May-2019, 2:20 AM
Replies: 21
Views: 140,705
Posted By rabbit73
correct Looks promising. Please let us know how...

correct
Looks promising. Please let us know how it works out.

See also this thread:
combining an RF signal with my OTA antenna...
Forum: Help With Reception 10-May-2019, 2:03 AM
Replies: 23
Views: 92,560
Posted By rabbit73
The FCC TV Study software used by rabbitears.info...

The FCC TV Study software used by rabbitears.info to generate reports includes a correction factor for VHF signals to allow for the higher noise level on VHF.

https://i.imgur.com/aAU1EBY.png
...
Forum: Antennas 7-May-2019, 11:24 PM
Replies: 30
Views: 68,998
Posted By rabbit73
A little noise can make it impossible to receive...

A little noise can make it impossible to receive a channel 3 signal which is on VHF-Low, your favorite band. And, Johnsonbrits who posted this thread, has one of your favorite antennas, the Winegard...
Forum: Help With Reception 6-May-2019, 3:34 PM
Replies: 23
Views: 92,560
Posted By rabbit73
Yes, please do. The "V" of the 4V would seem...

Yes, please do.

The "V" of the 4V would seem to indicate that you do have the VHF dipole for real channel 7, but we want to be certain.
Forum: Help With Reception 6-May-2019, 1:45 PM
Replies: 23
Views: 92,560
Posted By rabbit73
Good question. I forgot to ask.

Good question. I forgot to ask.
Forum: Antennas 6-May-2019, 2:02 AM
Replies: 30
Views: 68,998
Posted By rabbit73
Thank you for the update, Peter. Glad to hear you...

Thank you for the update, Peter. Glad to hear you were able to get them to put the transmitter back on the air.

You were able to reduce the noise interference that was reducing the SNR of the...
Forum: Help With Reception 3-May-2019, 10:35 PM
Replies: 23
Views: 92,560
Posted By rabbit73
Hello, kanjigirl. I'm a little puzzled. They want...

Hello, kanjigirl. I'm a little puzzled. They want you to rescan, but the references I found say KMGH Denver7 is staying on the same RF channel....
Forum: Help With Reception 2-May-2019, 10:35 PM
Replies: 15
Views: 42,227
Posted By rabbit73
Yes, rabbitears.info is more accurate. But, it...

Yes, rabbitears.info is more accurate. But, it should be because it is run by Trip who works for the FCC. It's about as accurate as it can be with all the Repack changes.

KDFQ was analog on 47. It...
Forum: Help With Reception 1-May-2019, 7:38 PM
Replies: 15
Views: 42,227
Posted By rabbit73
Thank you for more details. It seems to work well...

Thank you for more details. It seems to work well for your location.

http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id%3d9038cc35391921
...
Forum: Help With Reception 1-May-2019, 2:15 PM
Replies: 15
Views: 42,227
Posted By rabbit73
Thank you for the additional details. Good...

Thank you for the additional details. Good reception results at a unique location.

Do the UHF antennas have reflectors?

Did you buy the UHF antennas or did you make them? If you bought them,...
Forum: Help With Reception 30-Apr-2019, 8:05 PM
Replies: 15
Views: 42,227
Posted By rabbit73
Interesting setup. I read it a few times, but...

Interesting setup. I read it a few times, but also don't quite get it yet. A diagram and photos would help.

This map and TVFool report are based on your description:
...
Forum: Antennas 30-Apr-2019, 2:25 PM
Replies: 14
Views: 39,518
Posted By rabbit73
The closest to that I've seen is a double-ended...

The closest to that I've seen is a double-ended VHF-High Yagi. It has the driven element in the center and directors on each end, but no reflectors.

I can't find the poster's image right now, but...
Forum: Antennas 30-Apr-2019, 12:34 AM
Replies: 14
Views: 39,518
Posted By rabbit73
Now it's my turn to say Oops! I meant no insult,...

Now it's my turn to say Oops! I meant no insult, Bob.

What I meant was that having two combo antennas aimed in opposite directions is a lot like having two UHF/VHF pairs aimed in opposite...
Forum: Antennas 28-Apr-2019, 2:08 PM
Replies: 14
Views: 39,518
Posted By rabbit73
It does look like a custom mod. It looks like...

It does look like a custom mod.
It looks like it would perform about as well as Bob's present system.
What is your better alternative that is much more efficient than removing the reflector?

I...
Forum: Antennas 27-Apr-2019, 3:32 PM
Replies: 6
Views: 28,480
Posted By rabbit73
I assume you mean the 4228HD. Not really...

I assume you mean the 4228HD. Not really equivalent. The C5 gain curve is smooth; the 4228HD VHF-High gain curve has peaks and dips.
...
Forum: Help With Reception 25-Apr-2019, 10:48 PM
Replies: 153
Views: 3,158,618
Posted By rabbit73
The horizontal polarization of the transmitting...

The horizontal polarization of the transmitting antenna matches the horizontal polarization of your receiving antenna for the most effective reception.

Some vertical polarization has been added...
Forum: Help With Reception 25-Apr-2019, 10:07 PM
Replies: 153
Views: 3,158,618
Posted By rabbit73
Effective radiated power (ERP), synonymous with...

Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter.
...
Showing results 326 to 350 of 500

 

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