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Search: Posts Made By: GroundUrMast
Forum: Help With Reception 2-Jun-2017, 7:57 AM
Replies: 4
Views: 680
Posted By GroundUrMast
Quad shielded cable can be used in OTA...

Quad shielded cable can be used in OTA applications with no gain or loss in performance in the majority of cases. Because the antenna end of the coax is intentionally 'open' to the air, most...
Forum: Help With Reception 31-Mar-2017, 3:30 PM
Replies: 8
Views: 1,398
Posted By GroundUrMast
Yes, in virtually every case. (Any exception to...

Yes, in virtually every case. (Any exception to that would be extraordinarily rare.)
Forum: Help With Reception 29-Mar-2017, 8:15 AM
Replies: 8
Views: 1,398
Posted By GroundUrMast
Ground rods don't provide bonding

Consider the actual resistance (or more precisely, the impedance) of soil... It is often hundreds or even thousands of ohms when measured at a single isolated ground rod. If you have a fault that...
Forum: Antennas 26-Mar-2017, 3:54 AM
Replies: 22
Views: 12,955
Posted By GroundUrMast
On another note... I tossed a simulation of your...

On another note... I tossed a simulation of your earlier antenna (post #10 of this thread) together, using 4NEC2

CM
CE
SY AGL=0
GW 100 33 33/2 0 0+AGL -33/2 0 0+AGL #16...
Forum: Antennas 26-Mar-2017, 3:32 AM
Replies: 22
Views: 12,955
Posted By GroundUrMast
The basic formula to convert frequency into wave...

The basic formula to convert frequency into wave length is 299.8 Meters/Frequency (MHz)

For example, UHF channel 14 is 470 MHz to 476 MHz. Therefor, if you want to know the wave length at that...
Forum: Help With Reception 25-Mar-2017, 4:14 PM
Replies: 14
Views: 2,980
Posted By GroundUrMast
I think rabbit73 has already done a good job...

I think rabbit73 has already done a good job given the $100 constraint.

If not for the tight budget, I would consider the Antennas Direct DB8E or 91XG plus their Juice pre-amplifier.
Forum: Help With Reception 24-Mar-2017, 8:06 PM
Replies: 4
Views: 977
Posted By GroundUrMast
You're in a unique location... Only two of the...

You're in a unique location... Only two of the available signals are broadcast on UHF frequencies. The Lava, when or if it ever works, is not designed to receive the VHF signals that you have in your...
Forum: Help With Reception 17-Mar-2017, 11:46 PM
Replies: 9
Views: 1,862
Posted By GroundUrMast
As rabbit73 already asked, Why? The FCC has...

As rabbit73 already asked, Why?

The FCC has rules in place that protect your right to install and use an antenna for over the air television reception....
Forum: Help With Reception 17-Mar-2017, 9:13 AM
Replies: 9
Views: 1,862
Posted By GroundUrMast
Attics can be problematic reception...

Attics can be problematic reception environments... Even if there is no metal in the roofing materials or insulation, there will be some signal attenuation and reflections that would be avoided if...
Forum: Digital TV and Mobile DTV 16-Mar-2017, 8:44 PM
Replies: 7
Views: 2,469
Posted By GroundUrMast
A bit dated already, but this article seems...

A bit dated already, but this article seems relevant: https://hdguru.com/new-broadcast-tv-system-might-be-coming-soon/
Forum: Special Topics 16-Mar-2017, 8:36 PM
Replies: 4
Views: 919
Posted By GroundUrMast
That's what I have done with my masts; A...

That's what I have done with my masts; A dedicated bonding connection from the mast to the existing electrical service grounding system using #10 AWG. I treat the coax shield bonding as a separate,...
Forum: Special Topics 16-Mar-2017, 4:31 PM
Replies: 4
Views: 919
Posted By GroundUrMast
Yes, I would recommend that you ground both the...

Yes, I would recommend that you ground both the mast and the coax shield...

Have a look at this thread... http://forum.tvfool.com/showthread.php?t=901 Particularly post #20

If you need more...
Forum: Help With Reception 14-Mar-2017, 10:56 PM
Replies: 12
Views: 2,035
Posted By GroundUrMast
One thing is clear though... There are quite a...

One thing is clear though... There are quite a few TV Fool members who desire to help.

It's appreciated.
Forum: Help With Reception 11-Mar-2017, 12:42 AM
Replies: 7
Views: 1,402
Posted By GroundUrMast
Ditto Tower Guy and ADTech...

Ditto Tower Guy and ADTech...
Forum: Help With Reception 11-Mar-2017, 12:35 AM
Replies: 5
Views: 1,206
Posted By GroundUrMast
You're in a challenging location... You need to...

You're in a challenging location... You need to use the most capable antenna(s) to have a realistic chance of reception of any of the major LA based stations. Small antennas won't do the job, not...
Forum: Help With Reception 8-Mar-2017, 5:57 AM
Replies: 5
Views: 1,206
Posted By GroundUrMast
A large antenna such as the Winegard HD7698P or...

A large antenna such as the Winegard HD7698P or Channel Master CM5020 pointed West toward Mt Wilson may give you some of the stations down in the red shaded section of your report. However, it looks...
Forum: Help With Reception 27-Feb-2017, 5:56 PM
Replies: 12
Views: 1,995
Posted By GroundUrMast
It's common to find a UHF antenna provides some...

It's common to find a UHF antenna provides some degraded VHF reception, and the same is often the case with VHF only designs providing some degree of UHF reception. In either case, the results may...
Forum: Help With Reception 26-Feb-2017, 4:34 PM
Replies: 1
Views: 894
Posted By GroundUrMast
The terrain between you and the transmitters is...

The terrain between you and the transmitters is quite significant. Here's what I would do if in your situation...

I'd go into this a an experiment, knowing that I may end up disappointed with the...
Forum: Help With Reception 20-Feb-2017, 4:13 AM
Replies: 7
Views: 1,328
Posted By GroundUrMast
Your TV Fool report suggests that reception...

Your TV Fool report suggests that reception should be fairly easy...

I would try testing reception outdoors. All you need to 'spend' is some time and effort moving the existing antenna from the...
Forum: Help With Reception 22-Jan-2017, 4:35 AM
Replies: 11
Views: 2,584
Posted By GroundUrMast
If you"re happy, I'm happy. Cheers :)

If you"re happy, I'm happy.

Cheers :)
Forum: Help With Reception 20-Jan-2017, 7:13 PM
Replies: 8
Views: 2,062
Posted By GroundUrMast
Check with www.tinlee.com for custom tuned...

Check with www.tinlee.com for custom tuned filters. Be prepared for sticker shock, as their product is generally custom work that requires expensive test gear and skilled labor to produce.
Forum: Help With Reception 16-Jan-2017, 11:02 PM
Replies: 12
Views: 2,560
Posted By GroundUrMast
I've also got the desire to tree mount several...

I've also got the desire to tree mount several antennas. I've been waiting for sufficient recovery after a surgery to get back into my climbing gear. Perhaps this spring...

I've got several...
Forum: Help With Reception 16-Jan-2017, 10:31 PM
Replies: 5
Views: 1,624
Posted By GroundUrMast
Also... I realize that this time of the year is...

Also... I realize that this time of the year is not when one would expect to see trees growing up into the signal path... but is there any new construction that may be blocking or reflecting signals?...
Forum: Help With Reception 16-Jan-2017, 10:19 PM
Replies: 9
Views: 2,053
Posted By GroundUrMast
Totally off topic... My first memories in life...

Totally off topic... My first memories in life are at Lisabeula, right across the water from Olalla. Back when the dock and some of the beach buildings were still there. Time flies whether we're...
Forum: Help With Reception 15-Jan-2017, 4:44 PM
Replies: 9
Views: 2,053
Posted By GroundUrMast
A starting point would be to post a link to your...

A starting point would be to post a link to your TV Fool report so we can see what sort of signal levels you are dealing with, Not everyone will need an amplifier...
Showing results 1 to 25 of 500

 

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