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How to build an indoor dx fm only antenna?

I want to build an antenna cut only for fm, dx.

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Hi lgcphoto

What you need is a folded dipole that can be easily made from 300 ohm TV ribbon. Here is a link to a site that gives you instruction on how to make one. You need to check also what way your favorite FM station is polarised. In Australia, some(one at least) ABC stations are vertically polarised(meaning the antenna has to be vertical), presumably for better Car reception. But the majority are horizontal. Great results can often be achieved by splitting the signal from an external VHF TV antenna, but only if it is VHF, and the station you are looking for is in the same direction as the TV repeater. If you need any more assistance with this, just let me know. Rating this FixYa is a great reward for my time to address your request. Cheers, happy DXing

regards
robotek

Posted on Oct 19, 2008

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Posted on Jan 02, 2017

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2 Answers

How do I get an antenna for the FM connection?


You can use an old rabbit ears style antenna or go to a radio shack and get a flat ribbon style. If you're close to the radio stations a single section of wire about 2 feet long connected to one of the antenna screws will work too.

Jan 03, 2016 | Kenwood Av Surround Receiver Vr-307

Tip

Building your own Antennas


To build antennas for any frequency use formula L=234/Freq. Lets say 100 mhz. That would be L=2.34 feet or about 30 inches(close). Ok, Build a dipole antenna with a plastic insulator and 75 ohm Tv Coax. Take stiff alumnium rods or wire. Punch a hole into a plastic piece 4 inches apart. Insert Rods on both sides. Take shiny screws (Not Painted). attach Center Coax to Right side and Shield (ground) to Left side. Silicone these connections and use Black tape to wrap it good. Mount it on your Chimney or on a Tv pole 12-25 feet. Now, the coax coming into your house has to hook to your stereo by a 75 ohm match coil bought cheap at Electronic stores or Tv, radio supply stores. Attach coax by screwing it to coil and the two prongs screw to Back of your Fm Stereo. It will say ANT and GND. on back of Radio. You should pull in Fm stations better than indoor antennas and get farther away stations. It may have a 3 Db gain. Its the same for Cb radio --Just Use L=234/Freq. it comes to 8.5 feet(102 inches) Roughly. Its all Dipole Technology ..No Commercial antenna but will get decent results.

on Apr 01, 2011 | Audio Players & Recorders

1 Answer

Fm aerial connection ?


Both of my Marantz receivers use a 75 ohm coax input. The receivers included a single wire antenna that simply plugs in. The plug is suitable for coax cable going to an external antenna. You can also get a small 75 to 300 ohm transformer that will allow you to use a dipole or other common indoor FM antenna.

Feb 11, 2015 | Marantz Audio Players & Recorders

1 Answer

Show me a pictorial diagram of a dipole antenna connected to a stereo reciever


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You didn't list your receiver model number, but here's a generic picture of how you would connect an indoor FM dipole antenna to a Kenwood receiver. These antennas should be available at most home improvement stores or from Radio Shack. They cost around $10.00, maybe less.

Depending on your model, you may have use some adapters. Ask the store staff for help.

Aug 18, 2012 | Kenwood Audio Players & Recorders

1 Answer

I have a Philips MC235B micro stereo system, but I'm too dumb to figure out the FM antenna connector type. Any help would be great, thank you!


Hi,
If it is a plug, it is probably the PAL connector so you would need a PAL female on your coax lead.
There is a great reference at the FM Antenna Connector and Adapter Guide with pictures:
FM Antenna and Connector Guide
Lake FM DX Antenna Co

Jun 11, 2011 | Audio Players & Recorders

1 Answer

My Klh r3000 receiver is great for everything except picking up am or fm stations? I had an antenna attached, but the unit is in my basement, and I get no signals at all. What could I be doing wrong?


If the antenna is in a basement that is the problem - the fact that it is below ground means that no signals can get through.
Radio signals are blocked by buildings, large lumps of metal or other solid objects as well as strong magnetic fields (which can include electrical devices within the home).
To pick up good radio reception you will need an external antenna above the ground level - preferably as high as you can get it. Unless you get an omni-directional antenna like this one http://www.maplin.co.uk/vhf-fm-omnidirectional-aerial-874 you will need to point the antenna accurately at the transmitting station (+ or - about 5 degrees) for FM. At a pinch you might get by with an indoor aerial but it needs to be above ground level (inside a roof would be best)
Good external AM Radio aerials are harder to find these days.

Feb 24, 2011 | KLH R3100 Receiver

2 Answers

The FM antenna is insufficient. I there a way to improve reception? Another antenna that will fit?


To improve reception, use a 75 Ohm outdoor antenna instead of an indoor antenna. Disconnect the indoor antenna before replacing it with an outdoor antenna.

Dec 14, 2010 | Insignia 200W Stereo Receiver

1 Answer

AS SOON AS I TURN ON MY DENON-395 RECEIVER IT TURNS OFF


I REMOVED THE AM LOOP ANTENNA. AND THE UNIT WORKED. TO MAKE SURE THIS WAS THE PROBLEM I REMOVED AND REPLACED IT SEVERAL TIMES. EACH TIME IT WENT OFF AND. I THEN PUT ON THE FM INDOOR (WIRE) ANTENNA. THE UNIT BEGAN TO PLAY BEFORE EVEN BEFORE I CONNECTED IT. JUST GETTING IT CLOSE TO THE FM COAX. MADE IT WORK.

Oct 28, 2009 | Denon DRA-395 Receiver

1 Answer

Need to connect an indoor FM antenna to the receiver the 75 ohm connection is only bare wire


the indoor antenna you have must have a screw on connector and the receiver has a smooth connector or you would already have it hooked up. Go to Radio Shack and buy a connector that turns the coax into a slip on style.

Aug 14, 2009 | Pioneer VSX-453 Receiver

1 Answer

Can't find the voltage specs for terk 9330 tower fm antenna


Product Specs: General: Product Type Radio antenna Recommended Use Indoor Width 3 in Depth 16.9 in Height 3.5 in Color Black Localization English Antenna: Wave Band AM, FM / FM: 87.5 - 108 MHz, 540 - 1700 kHz Impedance 75 Ohm Gain Level 42 dB Amplifier Built-in Included Accessories Connector coupler, impedance transformer Connections: Connector Type 1 x FM antenna ¦ 1 x AM antenna Power: Power Device Power adapter - external Manufacturer Warranty: Service & Support 1 year warranty Service & Support Details Limited warranty - 1 yearlet me know how this works out for u

Jan 31, 2009 | Audio Players & Recorders

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