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.
View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 


27 posts

Geek


  Reply # 879335 16-Aug-2013 10:16
Send private message

Also, I seem to remember there being a broken line on the balun for the aerial when I got it.

Maybe I should replace it. Can get cheap enough from Jaycar. Would part LT3026 be right?

6740 posts

Uber Geek
+1 received by user: 593

Trusted

  Reply # 879339 16-Aug-2013 10:23
Send private message

With due respect, you will need to get outside and take a look at the aerial connections.

Go and see if they need any attention. Check the aerial is still mounted correctly and that the coax is terminated nicely. This may require cutting 4cm off the coax and reterminating the end etc. Also check inside at the other end of the coax.

It sounds like you're getting a weak signal which is therefore able to be interfered with easily. Get a rock solid signal in the first place and it should be strong enough to overcome these minor local disruptions.

Time to get your hands dirty. Older styled saddle and clamp connections at the aerial can all be tidied up fairly easily without the need for specialised crimping tools etc.



27 posts

Geek


  Reply # 879342 16-Aug-2013 10:25
Send private message

Will do, thanks mate!

1932 posts

Uber Geek
+1 received by user: 130


  Reply # 879456 16-Aug-2013 12:29
Send private message

Nerdherder: Also, I seem to remember there being a broken line on the balun for the aerial when I got it.

Maybe I should replace it. Can get cheap enough from Jaycar. Would part LT3026 be right?


No. That's designed for VHF antennas and won't fit a 43 el UHF.
The UHF antennas usually have a circuit board balun inside the connector box.
You need to inspect the antenna and co-ax.
I presume you do have a UHF only antenna and no thers connected via a diplexer or anything?
For Freeview you should have a single UHF only antenna and high quality rg6 cable direct to the TV and other Tuners.



27 posts

Geek


  Reply # 879478 16-Aug-2013 12:56
Send private message

Yep, just UHF 43 element, no other diplexers, antennae or anything attached...

1932 posts

Uber Geek
+1 received by user: 130


  Reply # 879517 16-Aug-2013 13:49
Send private message

Nerdherder: Yep, just UHF 43 element, no other diplexers, antennae or anything attached...

OK, that's a good start.
Just as a matter of interest, my 43 el has been up about 3 yrs now and the reflector is all rusty, the elements are corroding and the plastic box looks like its suffering from ultraviolet degradation. Still works OK though. There's a lot of salt spray in the air in Auckland and they don't make the antennae to last now like they did back in the 60s when TV started in NZ. I reckon 5 yrs is about the limit between renewals. They used to last 30+ yrs easily.



27 posts

Geek


  Reply # 879526 16-Aug-2013 13:55
Send private message

Yeah I hear ya there. We used to have a smaller element aerial (21 elements is it?) that we first had, when I pulled it down a few years ago the mesh was all rusty, as was the hardware and each juncture was corroded...



27 posts

Geek


  Reply # 879810 16-Aug-2013 21:34
Send private message

Got the new RG6 cables and F plugs on there. Now is solid if wriggle everything around, and the quality level went up comparing before installation, so I'm happy with the minor investment.

TV1 66%S 90%Q
TV3 50%S 81%Q, occasional dropouts
Kordia 50%S 80%Q, occasional dropouts.

TV tuner says
TV1 62 Signal
TV3 38 signal
Kordia 27 signal

All channels quite watchable, although a bit grainy on HD (TV2). Leads me to believe quality more important than strength to get apicture. But should be able to increase from here!

FYI just to see the effect I added a splitter (this is how I will want to run setup in future) didn't affect quality, but reduced strength by 10%.

Will get on the roof when the rain stops, aerial and coax check next..

1 | 2 
View this topic in a long page with up to 500 replies per page 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:



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.