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Need voltage and polarity info for terc 9330 fm powered antenna(r

I found a terc amplified fm antenna sold by radio shack but it doesn'thave the power adapter with it: i need to know what the power(wall wart) voltage and polarity are?terc 9330 tower fm antennathanks richard

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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

Posted on Jan 31, 2009

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I need to reset a power amplifier. i have a 250 watt power amplifier from radio shack. i thtink that one of the wires touched or someething either that or the power was on for too long. but now the p


One important note to be aware of Polarity. DC connections are Positive + and Negative -. RED/Black and/or White wires. Yellow is usually Video. Do not Reverse the polarity as this can cause mismatches and/or short circuits. Disconnect your attached wires and re-attach them correctly and firmly. Wires must be set into or onto the posts or connection points correctly by + or - and they may not touch one another. Check the Reset or Fuse on the amp and make certain you have full power.
If you fail to polarize correctly, you could damage the speakers moreso than the Amp.

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FM antenna is not providing reception, despite cable connected to powered antenna amplifier. TV also connected to powered antenna amplifier (splitter) works fine. FM mode produces only static. I purchased...


If I understand your setup, you've connected the receiver antenna terminal to the output of the antenna amplifier. If this is true, I'd suggest trying the receiver using a plain old FM dipole antenna (available at Radio Shack and other stores) or even just a piece of wire hooked to the antenna terminal. You should be able to pick up some local FM stations then.

What might be happening is that the FM is being filtered out by the amplifier. Some amps made mainly as a TV signal booster have an FM trap designed to block the FM broadcast band. In the analog broadcast days, the FM band was right near the sound part of a TV signal, and the trap was there to prevent interference. It may be filtering out your FM band.It may also be possible that you're just overloading the FM antenna input with the amplified signal. Sometimes a signal can be too strong. Using a simple wire antenna will let you test the receiver by itself.

Other than connecting an antenna you shouldn't have to do any setup for FM reception. If you still get no stations at all when using a simple antenna, then the receiver may need service. But I doubt Circuit City would have sold a floor model that was defective, even at the very end, unless it was clearly marked as such and sold "as-is". I'm pretty sure you'll find that the receiver works with an antenna made for FM.

Sep 14, 2011 | Denon DRA-37

1 Answer

I have lots of motor noise. when i unplug antenna it stops


The motor noise comes through power wires and antenna pickup. Get an old ferrite bar out of an old junk AM radio. That black bar with wire wound on it inside AM/FM radios. Tape it to your Antenna coax or try to add 2 of them. Just tape them to the coax at about 6" inches from your radio. Try to add a power wire filter to the RED(+) 12 volt wire and Black wire(-) to your radio. A power filter is just a Ferrite bead or small bar with about 10 wounds of wire and a 470uf capacitor from (+) to ground(black -). Make sure polarity on capacitor is wired (+)(-) that way too. Radio Shack has a "Power" line noise filter kit, that hooks up under your dash. Ask Radio Shack personnel about this they will help you locate a "noise filter" for noisy alternators.Its simple, also, your radio is doing a fine job if it picks up that sensitive through the antenna. That just shows you your antenna is doing a good job. I had a problem like that --I only talked on my CB with the ignition turned off though, it made since to park and talk.

Apr 21, 2011 | Cobra 29 LTD CB Radio

1 Answer

Can't seem to tune many stations at all. Also once a station is tunned it "slips".


The antenna works with the power cord. Try extending the length of its power cord with an extension cord.
Position of the radio in the room, the furniture in the room and your position in relation to the radio all affect its reception.
If there is a place to connect an external antenna, this will be helpful. Check with Radio shack and best buy for a FM loop antenna. Usually the wire is flat.
An inexpensive antenna for FM only is also a cheap alternative

Jan 03, 2011 | Tivoli Model Three Clock Radio

1 Answer

Am fm reception bad


FM reception is weak



What to do


• Extend the power cord as much as possible. The FM antenna is in the power cord.


• Move the power cord to adjust the FM antenna

• If you still have problems with FM reception, you may need an external antenna.


* Call Bose®Customer Service to request one.


The external antenna on your radio is a coax (round) design It needs an adaptor and an antenna which are cheap.


Easy to make, radio shack "F" connector 90 degrees or straight, to 300 ohm wire connections. Attatch a 300 ohm flat ribbon antenna cable to those two screws and plug into radio and see how your reception is. You will need to position the antenna wires to get best reception. I have hid them in back of paintings and so on.


Cheapest solution next to putting an extension cord on radio power cord.

Jan 03, 2011 | Bose Wave Radio

1 Answer

Can not get certain radio stations, when you turn yes


Hello, your solution is to simply upgrade the antenna. this is especially true if you are using the wire loop antenna that came with your unit.

Do a search for "Terk FM antenna" on ebay or amazon. They range anywhere from $20 to $100 depending on how strong you need it to be.

You can also check out radio shack or see what your local wal-ly world (walmart) has just remember you want an AMPLIFIED antenna

Hope that helps

Jan 14, 2010 | Technics Audio Players & Recorders

1 Answer

Improve reception


HI there,

Well Yes you can improve the reception, please follow the below steps -

Improve FM Radio Reception -
 
1. If you don't have an antenna connected to your FM receiver, purchase a simple dipole antenna--a simple T-shape flexible wire-- and connect it to the FM antenna inputs on the receiver. Because FM signals are directional, you'll want to experiment with the positioning of the wire to find the best reception of the station you're trying to receive.
 
2. If you're still not getting a good signal, try an indoor amplified antenna, which you'll find at an electronics store. Don't buy one unless you get a guarantee that you can return it for full credit if it doesn't solve your reception problems.
 
3. If your signal is weak because you live a long way from the transmitter, install an outside antenna and mount it as high as is practical. If you're primarily interested in getting signals from one station or from a group of stations in one direction, get a directional antenna and point it toward the transmitters.
 
4. If you're using a portable FM radio where the only antenna is the power cord, stretch the cord as straight as possible and experiment with positioning again.
 
5. Temporarily switch to monaural mode to improve a weak signal on an FM receiver.


Improve AM Reception -
 
1. Gradually rotate the radio 360 degrees. Leave it in the position where it sounds best.
 
2. Reverse the AC plug if it isn't polarized. (If you can flip the plug over, then it's non-polarized.)
 
3. Plug the radio into a different AC outlet.
 
4. Move the radio closer to a window.
 
5. Experiment to learn if appliances and powered products in your home are causing interference: computer monitor, television, electric blanket, light dimmer, fluorescent light, hair dryer, air conditioner, smoke detector. If possible, turn off the offending item. Otherwise, move the radio to another room.
 
6. Upgrade to an external antenna if your receiver, tuner or radio has a place to connect one.
 
7. Buy a passive AM antenna that doesn't need to be connected to a radio or receiver.

Good Luck!!

Thanks

Dec 29, 2009 | RCA RP5430 Clock Radio

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

1 Answer

BEFSR41 power supply?


Both the voltage and the polarity should be printed on the case of the router. The polarity should be right next to where the power plugs in.

The polarity information will look something like this:
--(-(+))--

If you take the router into a local Radio Shack, the clerk will probably be able to tell you which power supply you need.

Jan 09, 2009 | Linksys BEFSR41 Cable/DSL Router W/4 Port...

2 Answers

Cb radio


You may be generating a harmonic from the cb that is picked up by the radio. Check if different channels and if AM/FM act the same. Also if a cd unit, does playing a cd produce the same effect. If all stations and the cd player do the same thing, interference is most likely coming in on the radio power or ground leads. You can get an inline noise filter from radio shack: http://www.radioshack.com/product/index.jsp?productId=2103979&cp=2032058.2032230.2032273&parentPage=family
or you can make your own if you have an old computer power supply by using the toroids if you can get to the power supply lead. Make sure the radio housing is electrically connected to ground. The interference may also be coming in on the radio antenna. Try moving the cb antenna away from it if possible, or test by rotating the cb antenna to a horizontal position temporarily.

Oct 26, 2007 | Radio Shack TRC-503 CB Radio

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