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Search: Posts Made By: rabbit73
Forum: Antennas 7-Apr-2021, 1:36 AM
Replies: 18
Views: 79,575
Posted By rabbit73
In theory, it is possible to make a coax phasing...

In theory, it is possible to make a coax phasing harness for 4 stacked ordinary dipoles, but it is quite involved. Different types of coax are used and they must be cut to specific lengths according...
Forum: Antennas 7-Apr-2021, 12:04 AM
Replies: 18
Views: 79,575
Posted By rabbit73
I guess I didn't make it very clear. You can not...

I guess I didn't make it very clear. You can not wire your 4 halfwave dipoles together like the fullwave dipoles in a UHF bowtie antenna and expect it to work properly.

Two stacked halfwave folded...
Forum: Antennas 6-Apr-2021, 11:13 PM
Replies: 18
Views: 79,575
Posted By rabbit73
You have departed considerably from the example I...

You have departed considerably from the example I posted. The example is two stacked halfwave folded dipoles.

https://forum.tvfool.com/attachment.php?attachmentid=4126&d=1617747908

A bowtie...
Forum: Antennas 5-Apr-2021, 11:02 PM
Replies: 24
Views: 100,045
Posted By rabbit73
No, it does not guarantee reception; it's a close...

No, it does not guarantee reception; it's a close call.

There is only one way to find out; by trying it.

I was thinking of cost for an experiment when I suggested the Stellar Labs 30-2475 or...
Forum: Antennas 4-Apr-2021, 1:56 AM
Replies: 18
Views: 79,575
Posted By rabbit73
Yeah, wood isn't too bad until it gets damp. ...

Yeah, wood isn't too bad until it gets damp.

Many materials are available:
PVC pipe
PVC rectangular building materials from Best Buy and Lowes
Clear sheet Plexiglass (acrylic); cracks easily...
Forum: Antennas 1-Apr-2021, 7:28 PM
Replies: 18
Views: 79,575
Posted By rabbit73
You could try small diameter copper tubing, or...

You could try small diameter copper tubing, or bare 8 gauge solid copper ground wire from Lowes or Home Depot.

I have a GE 29884 antenna in my window that has a VHF aluminum folded dipole, but...
Forum: Antennas 1-Apr-2021, 2:37 AM
Replies: 18
Views: 79,575
Posted By rabbit73
Hello, beebo89; welcome to the forum. ...

Hello, beebo89; welcome to the forum.

https://forum.tvfool.com/attachment.php?attachmentid=4109&d=1617241163

Thank you for the signal report. It appears to be an approximate report that might...
Forum: Antennas 24-Mar-2021, 8:47 PM
Replies: 24
Views: 100,045
Posted By rabbit73
Well, since nobody is answering you: Yes, it...

Well, since nobody is answering you:

Yes, it can be iffy. You just have to try it.

If the two antennas are identical and aimed in the same direction, you can combine them for increased gain....
Forum: Antennas 23-Mar-2021, 2:44 PM
Replies: 3
Views: 40,491
Posted By rabbit73
It's not exactly a rule, more a matter on...

It's not exactly a rule, more a matter on convenience.

I understand your point, but now anyone who wants to help you has to read 3 threads to have a complete understanding of your situation.
...
Forum: Antennas 23-Mar-2021, 12:50 AM
Replies: 3
Views: 40,491
Posted By rabbit73
For people trying to help toddbailey, he has...

For people trying to help toddbailey, he has separated his reception problem into separate threads instead of keeping it all in one thread. You will find the basic information in this previous thread...
Forum: Antennas 21-Mar-2021, 8:45 PM
Replies: 4
Views: 43,710
Posted By rabbit73
Radio Shack catalogs: ...

Radio Shack catalogs:
https://www.radioshackcatalogs.com/index.htm#main_catalogs
Forum: Antennas 21-Mar-2021, 8:11 PM
Replies: 4
Views: 43,710
Posted By rabbit73
A1 does look like an original 4228: ...

A1 does look like an original 4228:

https://forum.tvfool.com/attachment.php?attachmentid=4101&d=1616353884

A2 is probably a 15-2162:
...
Forum: Antennas 21-Mar-2021, 8:05 PM
Replies: 24
Views: 100,045
Posted By rabbit73
Thank you for the correction; that makes more...

Thank you for the correction; that makes more sense.

Using a separate antenna designed for VHF-High should help with reception of KCTS and KSTW.


The corner reflector yagi should be able to...
Forum: Antennas 20-Mar-2021, 11:07 PM
Replies: 24
Views: 100,045
Posted By rabbit73
Thank you for the signal report. ...

Thank you for the signal report.

https://forum.tvfool.com/attachment.php?attachmentid=4091&d=1616277928

https://forum.tvfool.com/attachment.php?attachmentid=4092&d=1616277969

9-1 (9) KCTS...
Forum: Antennas 20-Mar-2021, 12:21 AM
Replies: 24
Views: 100,045
Posted By rabbit73
Hello, toddbailey; welcome to the forum. ...

Hello, toddbailey; welcome to the forum.

Your description doesn't seem to match your location. Please do a signal report at rabbitears.info so that we can see what signals you have (I use...
Forum: Help With Reception 16-Mar-2021, 8:38 PM
Replies: 15
Views: 33,518
Posted By rabbit73
Here is a terrain profile using different...

Here is a terrain profile using different software:

https://forum.tvfool.com/attachment.php?attachmentid=4088&d=1615923489

You are on the edge of a dead zone (no color):
...
Forum: Help With Reception 16-Mar-2021, 12:01 AM
Replies: 15
Views: 33,518
Posted By rabbit73
Tower Guy is correct. CBS, ABC, and NBC are very...

Tower Guy is correct. CBS, ABC, and NBC are very weak and blocked by terrain.

https://forum.tvfool.com/attachment.php?attachmentid=4083&d=1615849187
...
Forum: Help With Reception 14-Mar-2021, 10:34 PM
Replies: 1
Views: 15,510
Posted By rabbit73
The Antennas Direct website store says: I...

The Antennas Direct website store says:

I don't think it is discontinued; the supply chain is slower because of the Pandemic. Costco has some empty shelves because of slow shipping from China for...
Forum: Help With Reception 7-Mar-2021, 4:13 AM
Replies: 9
Views: 26,738
Posted By rabbit73
It's a longshot, a gamble, only for the dedicated...

It's a longshot, a gamble, only for the dedicated experimenter.

I did the analysis to make an evaluation.

With signals like that, the signal reports can be off either way.

My educated guess...
Forum: Help With Reception 7-Mar-2021, 1:43 AM
Replies: 9
Views: 26,738
Posted By rabbit73
Antennas Direct is correct; there is a hill in...

Antennas Direct is correct; there is a hill in the signal path.

http://forum.tvfool.com/attachment.php?attachmentid=4069&d=1615081321

Using different software to confirm the problem:
...
Forum: Help With Reception 12-Feb-2021, 3:27 PM
Replies: 9
Views: 25,841
Posted By rabbit73
He did a copy and paste that lost the center part...

He did a copy and paste that lost the center part of the link; the ID number should be enough to recover the report:
https://www.rabbitears.info/searchmap.php?request=result&study_id=216925
Forum: Help With Reception 11-Feb-2021, 12:27 AM
Replies: 32
Views: 134,160
Posted By rabbit73
Sorry about that. I missed the co-channel...

Sorry about that. I missed the co-channel problem. Corrected image in post above.

On this forum, I make images that will show in a post no wider than 750 pixels.
Forum: Help With Reception 10-Feb-2021, 9:36 PM
Replies: 32
Views: 134,160
Posted By rabbit73
Thank you for your reply 9 kHz to 3.2 GHz,...

Thank you for your reply

9 kHz to 3.2 GHz, very nice

So, with traps and the adjustment of aim, 17 is possible; excellent!

It looks like the slope on the high side of 16 was adjusted to be as...
Forum: Help With Reception 6-Feb-2021, 7:43 PM
Replies: 32
Views: 134,160
Posted By rabbit73
At the present time, are you able to receive 17...

At the present time, are you able to receive 17 that is adjacent a much stronger 16? That would seem impossible for a TV tuner to handle.
...
Forum: Help With Reception 5-Feb-2021, 3:26 AM
Replies: 32
Views: 134,160
Posted By rabbit73
http://forum.tvfool.com/attachment.php?attachmenti...

http://forum.tvfool.com/attachment.php?attachmentid=4052&d=1612495249

Is that azimuth based on True North or Magnetic North?

Channel 15, CHCH, is 476 to 482 MHz, 291.4° True, 301.9° Magnetic...
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