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.


311 posts

Ultimate Geek
+1 received by user: 11


Topic # 113865 30-Jan-2013 14:13
Send private message

Hey guys.

After playing around with our car stereo, I've decided I want to start looking into getting a DX Setup in the house.

Question is What type of Antenna do I need?

We are located in Henderson Valley, Waitakere and where we are for whatever reason, in the car we can receive a number of stations located outside of Auckland. For Example Classic Hits, from Whangarei, Hamilton, and Gold FM from the Coromandel, and Times FM from Rodney, and Many others.

The question is, almost none of them are receivable in the house, (Sometimes I get traces if I point the wire in the right direction) I'm putting it down to the fact that the Antenna wire is no where near strong enough to pick it up, since the transmitters are so far off.

We also can pick up quite clearly about 5-10km down the road, is Classic Hits from Taranaki, but I can't pick up a sniff of the signal at home, even with the car radio.

My ultimate goal is to pick this up at home.


So, I've decided to put some of my money together, and invest in a Roof Antenna setup for the sole purpose of FM Dxing.

The question is that since I am relatively new to the subject of FM dxing, I have no idea where to start looking for a decent Antenna for that purpose.

I want to keep my budget under $100 if possible.

I was looking at this one here. I was keen on this one. http://www.trademe.co.nz/electronics-photography/tvs/cables-aerials/auction-548636308.htm

However, it will still need to be pointed in the right direction and there's no point really if I have to climb on the roof to change the direction of the antenna, every time when f I want to pick up a signal in the opposite direction.

I was reading more on this, and I found this seller from the USA. http://www.fmdxantenna.com/proddetail.php?prod=FMDipUS#.UQh0zme5z1s

This one also looks like a good option, even if it gets shipped from the USA, it's still cheaper then trademe, if it works better. I'm just not sure on that one, because it looks smaller then the 5 element one.

Hope somebody can help me.

Thanks

Create new topic
3343 posts

Uber Geek
+1 received by user: 1089

Trusted
Vocus

  Reply # 753276 30-Jan-2013 14:15
Send private message

Do you have a VHF antenna already on your roof?  Tried that?  I get brilliant FM reception from mine.



311 posts

Ultimate Geek
+1 received by user: 11


  Reply # 753281 30-Jan-2013 14:22
Send private message

ubergeeknz: Do you have a VHF antenna already on your roof?  Tried that?  I get brilliant FM reception from mine.


Unfortunately not, however I haven't ruled out buying one, because with all Freeview HD stuff on UHF, I'm sure many people have spare VHF antennas lying around.

1927 posts

Uber Geek
+1 received by user: 128


  Reply # 753322 30-Jan-2013 15:27
Send private message

ubergeeknz: Do you have a VHF antenna already on your roof?  Tried that?  I get brilliant FM reception from mine.


A VHF TV antenna is not ideal for FM Radio but just a compromise.
The ones shown on Trademe are purpose built for FM band Radio (88 - 108mhz) and the prices are reasonable. You'd be hard pushed to make your own for much less. Note also that FM polarisation is slant (45 degrees, right side down left side up from the back of the antenna looking at the transmitter) and neither vertical nor horizontal.
If you are really serious about FM DX then you would need a rotator.
See here
http://www.comcentre.co.nz/Amateur_Antennas.php
The G-250 is a TV antenna type rotator and would work fine although it is rather expensive and also no longer manufactured.
I have one I use for VHF (5 element 50mhz beam) and it works well.
The current price is nearly double what I paid for mine about 8 yrs ago.
The next model up (G-450) is not much more expensive and would handle much bigger antennas and wind loads. They can be purchased from USA suppliers for about half the local price.



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.