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Get The Best Reception - Melbourne


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#851 dig2all

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Posted 07 March 2015 - 08:43 AM

another solution for solving capital city reception problems is the fracarro terza6hd

 

built recently in the philips antenna style after fracarro bought the philips matv business many years ago, it has excellent flatness across channels 6 to 12 and features proper matching to 75ohms which has resulted in better mer ber in poor reception areas



#852 alanh

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Posted 07 March 2015 - 01:42 PM

This antenna is a standard 6 element Yagi-Uda antenna.  There are others available from 4 elements to 12 elements http://www.hillsante...GITEL_FLYER.pdf and  http://www.matchmast...ic/vhf-antennas excluding the FM antennas. They and Hills have phased arrays for long distance and blocked reception of horizontally polarised signals which are used in all state capital cities main transmitter sites. Matchmaster also have log periodics as well.

Itallian Fracarro sold by Laceys http://online.laceys...s/yagi-antennas 4E512_F 6E512_F  also have Log periodic http://online.laceys...c/products/lp3f , 4E512_F 6E512_F  and BLV4F BLV6F 

 

So there is a lot to choose from now that UHF will not be required for community TV by the end of this year.

 

Alanh



#853 smokyjoe

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Posted 20 March 2015 - 08:07 AM

Joe,

You did not say if the green is for the Melbourne inner suburbs transmitter or for the main Melbourne transmitters at Mt Dandenong. This is selectable on top right of the map. "Transmitters available"

 

You are unlikely to get reliable reception from the Melbourne inner suburbs transmitter unless the antenna is mounted on its side (the short and long elements pointing towards the ground and not parallel with the horizon) and rotated to point towards the western end of the Melbourne CBD.

 

As for doing it yourself, firstly are you confident climbing on the roof?

 

Alanh

 

So I finally got around to getting on the roof. I pointed my antenna at the Melbourne CBD tower, using one of the antenna helper apps (Antenna Mate). I completely lost Channel 10 after doing this (I tried both auto and manual tuning), so I repointed it back at Mt Dandenong. All of the other antenna's in the street seem to be pointing at Mt Dandenong, and most seem to have the same style antenna as I do.

 

I took a quick snap of my antenna while I was up there:

0UL2aHY.jpg

 

Any tips on what the next step should be:

 

1.  Buy a cheapo amplifier from Jaycar ($20) and hope that fixes it.

2. Buy a new antenna



#854 alanh

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Posted 20 March 2015 - 12:08 PM

Considering that you are in the green zone for Inner Melbourne, I would try the following;

 

Firstly see if you can receive the inner melbourne signals on an indoor antenna which you can return to the retailer if it does not work. Such as http://www.dicksmith...fier-dsau-l4069

 

You will need to rescan for stations using the install menu. Do it without any antenna connected to erase current settings. Time how long it takes to get to channel 32 when scanning. When the scan is complete, restart the scan and then plug in the antenna after that time.(the Antenna will need to have 600 Bourke St at right angles to the screen in the antenna. An appropriate antenna for their signals is http://www.hillsante...15&ProductID=62 and they are available in various brands. It should be mounted as shown.

A rescan as shown above will also be required.

 

Alanh



#855 hrh

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Posted 20 March 2015 - 03:13 PM

or must it be on it's side to have any chance of working?

Yes. For once AlanH is correct. 

Any tips on what the next step should be:

Did you rotate your antenna along the latitudinal axis so that it had all the elements pointing to the sky and ground with that long dark section to which they are all mounted pointing at Burke St, or did you just turn it around as is?
It looks as though you will need extra mounting hardware to turn it on its side to have it in the vertical polarity configuration that is required for the CBD stations.

#856 ------

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Posted 22 March 2015 - 09:03 AM

I took a quick snap of my antenna while I was up there:

 

I see what looks to be a wire antenna balun thingy going from the antenna to the coaxial cable.

 

I'd be checking that first to see if it there are any issues there.



#857 alanh

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Posted 23 March 2015 - 11:02 AM

This antenna has seen much better days. Now the long element at the back designed for channel 2 analog are no longer used and the shortest elements at the front are no longer used for SBS and by the end of the year will not be used for C31. So there is little of this antenna left which will actually be used. Considering that the corrosion is in the only section left it is time for a replacement. Either my first suggestion above or a band 3 only antenna pointed at the main transmitters at Mt Dandenong.

 

As for the balun, corrosion can also occur here, but they are wound to match the antenna to which they are connected to. So you will have to replace the antenna.

 

The cable and the required F connector plug may also be corroded particularly if the rubber boot has a hole in it.

 

Alanh



#858 marshallite

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Posted 23 March 2015 - 10:27 PM

I just found a Federal Govt web site with info on how to get interference checked. ACMA

You can even write to them with an enquiry via the web site.

 

http://www.acma.gov.au/Citizen/Consumer-info/My-connected-home/TV-reception/where-can-i-get-help-to-fix-my-reception-problems

 

Australian Communications and Media Authority

ACMA

 

Click on CITIZEN ACMA

CONSUMER INFO

MY CONNECTED HOME

TV RECEPTION

GENERAL INFORMATION / or pick a box

 

They can help find the source of interference SOMETIMES, but they explain that it's nearly always up to you to approach the source to sort out the problem. Anyhow, read it and see. It's helpful.



#859 alanh

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Posted 24 March 2015 - 11:02 AM

Interference is not the problem here, so the service will be of no use.

 

Alanh



#860 smokyjoe

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Posted 26 March 2015 - 12:15 PM

Thanks guys for all your help. I guess I'll be replacing the antenna then.

 

Is these fairly easy to install yourself? I'm a bit of a novice when it comes to things like this, but I'm getting better at it and I've got all the basic tools.