TV Fool

TV Fool (http://forum.tvfool.com/index.php)
-   Enthusiast's Exchange (http://forum.tvfool.com/forumdisplay.php?f=16)
-   -   Hill Top Antenna Linked via Wifi (http://forum.tvfool.com/showthread.php?t=1286)

GroundUrMast 30-Jan-2011 4:39 AM

Hill Top Antenna Linked via Wifi
 
1 Attachment(s)
This is just a wild pipe dream...

But for someone with a serious OTA reception habit who happens to be blocked by terrain but has access to a hill top and a few bucks to spare...

The idea is to place a network attached tuner at a remote antenna that can then be accessed by a PC at the desired viewing location. A clear line of site needs to be available for the WIFI link.

sdubb 26-Apr-2011 11:53 PM

Thats Awesome! My only concern would be the bandwidth to keep up with 2 HD shows being recorded. I guess you could drop some cat5 down the hill but you would could only get 300' :D

GroundUrMast 27-Apr-2011 4:14 AM

Quote:

Originally Posted by sdubb (Post 7964)
Thats Awesome! My only concern would be the bandwidth to keep up with 2 HD shows being recorded. I guess you could drop some cat5 down the hill but you would could only get 300' :D

You're right, the Wifi link would need to be rock solid. To record one HD show while viewing a second HD show live could require an error free 48 MB/s WIFI link, something that would require a true line of site and a substantial fade margin. 100 Mb/s Wifi bridges are available... http://www.radiolabs.com/products/wi...ess-bridge.php Depending on circumstances, 802.11a, g or n may be the best choice. There are unlicensed 900 MHz radio options possible as well.

Or, if you really have access to the needed right of way, there are long haul options for twisted pair such as http://www.patton.com/products/pe_pr...ory=416&tab=sp Capable of a 45 Mbit/s link out to 0.9 KM or more. Also, Ethernet over RG-6 and RG-11 devises are on the market. EnConn is one of several vendors I have seen, but none have been in hand.

Of course, there are all sorts of other variations on this concept. If power is available, a PC at the remote site can be the PVR/DVR. This would reduce the load on the WIFI link provided you would be satisfied to download recordings when live programing is not filling the link.

A similar system could be run from a remote location with power and internet access. Products like Slingbox come to mind.

GroundUrMast 9-Jan-2014 11:08 PM

With the new HDHR PLUS, this idea might become a bit more practical. http://www.silicondust.com/products/...run/hdhomerun/

The ability to trans-code MPEG-2 to H.264 in stand alone hardware reduces the bandwidth needs dramatically.

shoman94 2-Mar-2016 6:30 PM

Quote:

Originally Posted by GroundUrMast (Post 41084)
With the new HDHR PLUS, this idea might become a bit more practical. http://www.silicondust.com/products/...run/hdhomerun/

The ability to trans-code MPEG-2 to H.264 in stand alone hardware reduces the bandwidth needs dramatically.

What's the distance from the hilltop to your house?

ADTech 4-Mar-2016 4:36 PM

Tom hasn't visited the forum since last fall....

GroundUrMast 9-Jul-2016 7:46 AM

Quote:

Originally Posted by shoman94 (Post 54740)
What's the distance from the hilltop to your house?

My opening post began with, "This is just a wild pipe dream..."


At present, I'm located atop a hill, but surrounded by trees that are more than 100' tall. If not for the trees, I'd have line of site to most transmitters in my area. :(

I recently bought a couple of Ubiquiti products, a NanoLoco-M2 and an airGateway. Both devices have a combination of wired and wireless connectivity options. I have been extremely pleased with the performance of the NanoLoco-M2 when configured as a bridge or access-point. With a clear line of site, the manufacturer claims that the NanoLoco-M2 can maintain a 5Km point to point link... I've not tested that yet, but based on my experience thus far, I actually believe the manufacture's claims are true.

Now that I'm feeling healthier, I need to get out and play with the hardware...

WIRELESS ENGINEER 16-Nov-2016 11:50 PM

I had a similar problem decades ago with a motel that couldn't pick up TV off antennas because of a hill top a mile away
I created a passive repeater on top of that hill by connecting two 8bay bowties back to Back
I simply pointed one toward the stations and the other one toward the motel
That motel became the only motel in the area that couild get all the networks

rickbb 17-Nov-2016 6:58 PM

Did the 8bays have reflectors?

eggman531916 4-Dec-2016 12:09 AM

Quote:

Originally Posted by WIRELESS ENGINEER (Post 56813)
I had a similar problem decades ago with a motel that couldn't pick up TV off antennas because of a hill top a mile away
I created a passive repeater on top of that hill by connecting two 8bay bowties back to Back
I simply pointed one toward the stations and the other one toward the motel
That motel became the only motel in the area that couild get all the networks

Now THAT is interesting. May I ask for some details on how you did it?

WIRELESS ENGINEER 17-Dec-2016 2:50 AM

Sorry, just now looked at this thread again

You can simply take two high gain antennas and connect them together with a short jumper

Aim one toward the broadcast towers and the other one toward your antenna

You could even use a high gain preamp on the antenna facing the broadcast towers for more gain

Commercial systems that do this are available today but back then none were around

Imagine a 30 db gain preamp receiving a TV station on a 15 db gain antenna then sending it back out through another 15 db gain antenna

60 db gain in signal level coming toward your house is huge

eggman531916 19-Dec-2016 3:58 AM

Thanks! I may have to mess around with this idea a bit...when it gets a little warmer.:)

GroundUrMast 23-Dec-2016 7:45 PM

Quote:

Originally Posted by WIRELESS ENGINEER (Post 57063)
Sorry, just now looked at this thread again

You can simply take two high gain antennas and connect them together with a short jumper

Aim one toward the broadcast towers and the other one toward your antenna

You could even use a high gain preamp on the antenna facing the broadcast towers for more gain

Commercial systems that do this are available today but back then none were around

Imagine a 30 db gain preamp receiving a TV station on a 15 db gain antenna then sending it back out through another 15 db gain antenna

60 db gain in signal level coming toward your house is huge

I'm pretty confident that there is no regulatory problem with a passive (no amplifier) relay, but I'd want to double check the current FCC regulations before adding any active device to a relay system like this.

WIRELESS ENGINEER 27-Dec-2016 8:01 PM

This technology is actually being used every day in the cell phone industry

Millions of amplified repeaters are in use in this country in cars, homes, stadiums, airports,malls, businesses, hospitals, etc

None of these units are passive.

Many of these units are using 80db gain amplifiers

Prio to 2014 their use was totally unregulated.

Today the FCC only requires users to inform their carrier that they are boosting their signal with one

GroundUrMast 29-Dec-2016 8:05 PM

I'm sure you're right about the technology...

I'm simply suggesting that it would be a good idea to be familiar with the the limits imposed by the FCC. EDIT: Tower Guy correctly refers to CFR 47 part 74 (see post 16 below) In particular, https://www.law.cornell.edu/cfr/text/47/74.732 paragraph (g) appears to be very relevant.

Tower Guy 29-Dec-2016 8:44 PM

The legality of a TV on channel booster is in FCC rules part 74. The rules say that they must be licensed individually. The key to a workable booster is to place the antennas far enough apart such that the isolation between them is 30 db more than the gain of the amplifier. Filters must be used to limit out of band interference. If I were in your shoes I'd try it before I licensed it.

welkin 6-Dec-2017 10:23 PM

We use these at work for failover between buildings. They have a 10 km range and 450 Mbs throughput. They're quick, easy, fast and less than $100.

https://www.amazon.com/Ubiquiti-NBE-...anobeam+5ac+19

welkin 6-Dec-2017 10:34 PM

Here's a link to a link simulator.

https://airlink.ubnt.com/#/ptp

GroundUrMast 31-Jan-2018 12:34 AM

Quote:

Originally Posted by welkin (Post 59354)
We use these at work for failover between buildings. They have a 10 km range and 450 Mbs throughput. They're quick, easy, fast and less than $100.

https://www.amazon.com/Ubiquiti-NBE-...anobeam+5ac+19

At home I'm using two Unifi AP-AC-LR access points to cover my property with very reliable Wifi signal. I've used the NanoLOCO-M2 and the AirGateway products for a couple of applications. I'm quite impressed with the performance and reasonable cost of all these Ubiquiti products.

Sev 2-Feb-2018 7:00 PM

Funny I was just thinking about this the other day.
Staring at the hill in front of my house and thinking it would be nice to have a tower up there with a with a narrow beam OTA to WIFI converter repeater.


All times are GMT. The time now is 9:17 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright © TV Fool, LLC