Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


1937 posts

Uber Geek
+1 received by user: 53
Inactive user


Topic # 59137 28-Mar-2010 09:07
Send private message

We are looking for a solution to get UHF in a second room. An indoor splitter and running cabling to supply a second TV is an idea but would prefer not to have wires running between the two rooms which are a hallway apart if possible. 

I have read up some old threads but have a few questions about indoor UHF aerials.

I have already tried VHF bunny ears but this was not successful. However I know our house in Dunedin has direct LOS to the transmitting tower hill. 

1. Does LOS refer to the property you are trying to receive the signal from or the antenna itself? ie. Does the antenna need to be pointing out a window directly at the tower? Or does it just need to be inside a house that has LOS?

2. There seem to be three "UHF indoor aerials" on the Dick Smith website. Some "powered". Which are "better? Are there problems that powered ones can introduce? I read some suggestion of this but it was not elaborated on. 

3. Aside from the DSE $40-60 options does anyone know of any cheaper options?

4. How much would a 10-15m coax cable to extend the current aerial signal cost to buy or make?

5. Any idea how much it might cost a aerial installer to split my signal and create a new wall outlet in the second room?

Any answers would be much appreciated :)

Create new topic
21243 posts

Uber Geek
+1 received by user: 4273

Trusted
Subscriber

  Reply # 312109 28-Mar-2010 17:45
Send private message

UHF indoor from the $2 type shop worked for me when plain bunny ears failed. Just cut off the VHF parts since they are redundant on a TV nowdays.




Richard rich.ms

218 posts

Master Geek
+1 received by user: 11


  Reply # 312295 29-Mar-2010 09:49
Send private message

I bought one of these and it works ok on a samsung with built in freeview. I am in Palmerston North cannot actually see the transmitter from my house, there are a couple of trees and houses in the way.
I pointed it out the window in the correct direction and used the built in signal strength and error count meters on the TV to fine tune the orientation. It works fine but if I knock the antenna slightly off line then I have to 'fine tune' again.

http://www.trademe.co.nz/Browse/Listing.aspx?id=274263186

Cheers.

KFB

11 posts

Geek


  Reply # 312313 29-Mar-2010 10:19
Send private message

The line of sight refers to the transmit and receive antennas. UHF signals are quickly attenuated and distorted passing through or bouncing off walls, folliage etc.
A small outside antenna with line of sight will perform much better than any flash inside antenna.
Some houses have cladding or lining that will produce a serious shielding to UHF signals.
Unfortunately UHF does not "bend" as well as the lower frequencies, anthough it does penetrate apertures better due to the shorter wavelengths.

Your best course is to have one good antenna outside, with a quality coax feed to a good quality spltter to share the signal between the rooms. There will be a 3db loss (in a perfect world) of signal due to splitting and if the signal is now too degraded to share, it is better to improve the signal by using a an antenna with more gain, the second best move is to boost the signal with a mast head pre-amplifier.

Best regards,
Keith

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Hawaiki Transpacific cable ready-for-service
Posted 20-Jul-2018 11:29


Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40


Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36


Microsoft ices heated developers
Posted 6-Jul-2018 20:16


PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45


Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40


Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04


N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08


Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03


Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27


Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13


Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00


Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12


Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52


Kogan.com to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.