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.


4556 posts

Uber Geek
+1 received by user: 1828


Topic # 115776 6-Apr-2013 13:10
Send private message

I have had terrestrial on one TV for about a year working fine.

Today I split the signal between tow TVs and all of sudden I can get the TV3 channels but not the prime or TVNZ channels.

I'm using RG-6 quad shielded cable, reasonably short runs crimped F terminals and the splitter was previously in use as a DVB-S splitter without any robs.  I am confident in my crimps (I have done quite a few of them now without any problems).  The aerial is pointing directly at the transmitter.

It is a 6 way splitter (no mast head amplifier), but I am only using two outlets - am I splitting the signal too much?  Also I don't have plastic caps for all the unused outlets - could I be leaking signal from the uncovered outlets?




Mike

Create new topic
1952 posts

Uber Geek
+1 received by user: 313

Trusted

  Reply # 794294 6-Apr-2013 13:58
Send private message

Ideally the unused outlets should have terminators on them like this (plastic caps do nothing but keep out dust/moisture) but I wouldn't have thought that not having them terminated would give you that much grief. Cheapest solution might be to swap it out with a 2-outlet splitter

1927 posts

Uber Geek
+1 received by user: 128


  Reply # 794324 6-Apr-2013 15:09
Send private message

nickb800: Ideally the unused outlets should have terminators on them like this (plastic caps do nothing but keep out dust/moisture) but I wouldn't have thought that not having them terminated would give you that much grief. Cheapest solution might be to swap it out with a 2-outlet splitter

+1
Get a quality 2 way splitter.

684 posts

Ultimate Geek
+1 received by user: 187


  Reply # 794329 6-Apr-2013 15:14
Send private message


Change the splitter to a two way one designed for VHF - UHF, some of the satellite ones only do 900 MHz to 2500MHz so will kill your DVB-T signal. ( some will do both )
A 6 way spliiter may also drop your signal too much, you cant really prove that without a decent field strenght meter, one of the cheap ones from Jaycar will not be good enough.

Also make sure that one of shield wires is not touching the centre conductor.

You might like to get an F barrel and try each TV connected directly to the aerial to prove everything works. I however would start with the splitter.

Cheers
John







I know enough to be dangerous


26633 posts

Uber Geek
+1 received by user: 6133

Moderator
Trusted
Biddle Corp
Lifetime subscriber

  Reply # 794336 6-Apr-2013 15:33
Send private message

As pointed out the first thing you need to do is check the spec of the splitter. Most modern splitters do 5MHz - 2400MHz so cover both terrestrial and satellite but some are only up to 900MHz for terrestrial and some only above this for satellite.



4556 posts

Uber Geek
+1 received by user: 1828


  Reply # 794520 7-Apr-2013 10:23
Send private message

Thanks for the replies.  Since posting this I have discovered two things contributing to the problems I am having.  Firstly the new TV was set to Australia.  Second the wall pate for the existing TV was faulty.

Things are much improved everything worked really well yesterday but today I'm  having problems with some channels. I'll check the splitter as advised.

Strangely the channels I am struggling with are changing.  Yesterday TVNZ and Prime were the problem but TV3 was absolutely fine.  Today its 1,2 3, 4 are fine but  TV1+1, TV3+1 and Prime aren't working.




Mike

1552 posts

Uber Geek
+1 received by user: 157

Subscriber

  Reply # 794530 7-Apr-2013 11:31
Send private message

What are the specs of your aerial... age and shape/type.




4556 posts

Uber Geek
+1 received by user: 1828


  Reply # 794652 7-Apr-2013 16:32
Send private message

75 ohm, 470 - 864 mhz

http://www.dicksmith.co.nz/product/L4735/dick-smith-hd-uhf-outdoor-antenna-pack

I'm pretty sure the aerial is fine.  The x/y orientation is correct, I have a clear line of sight to the transmitter on Mt Campbell and I used a spotting scope to point the aerial right at it.

I couldn't find a new splitter today so I haven't changed anything since my last post.  However I now have all channels again on the TV that was playing up (the older of the two).  The new TV has had all the channels since I discovered the country setting was wrong .

Freeview terrestrial is a bit variable in Nelson so it's possible that the some of the problems I have ahd this weekend are transmitter related.  If I lose channels again, I'm going to swap the TVs around and see what happens




Mike

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.