Digital Radio Mondial

I have change my Yeasu FRG7700 with a simple oscillator and product-detector and now I can recieve DRM on te short/middle and Longwave.

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AMP3 TV iAudio D2 DAB Review

Our series of product reviews continues - this time, the Cowon iAudio D2 DAB.

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Nine Good CW OPs

Oak Hills Research Digital Dial DD-1 frequency display connected to Ten-Tec T1380 QRP transceiver. Stations received are K2MMW, KC9MNU, K8MPH, K5YAA, KA2PJO, K8JD, W4RK, N5PHT and K7MOA. For more info on the OHR DD-1 see www.ohr.com For more info on the Ten-Tec T1300 QRP kits see radio.tentec.com

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Many homes and offices have wall mount speakers with a high space flexibility and a very good integration in the background. The main flaw of conventional floor systems is that they occupy too much space in the room, not to mention that occasionally there are distortions of the sound because of the vibrations that could happen in the room. Wall mount speakers are not that exposed to these inconveniences because there is hardly any movement in the cones. Plus, there is no need for filters and the surround sound has a higher quality. There are several elements you should be careful with.

First of all, the power of the wall mount speakers should be well matched with that of the amplifier's. The output power in the amplifier should also influence the choice of the speaker, or its power rating, to be more precise. As for the size of the speakers, you need to choose those devices that match the space where you want them installed. And keep in mind that the speakers size is irrelevant for the sound quality. Depending on the design, the mounted device will also have very small satellite speakers that are meant to cover the high or midrange frequencies.

The position or direction of the wall mount speakers can be adjusted either during the installation process or afterwards. Moreover, You can position the wall mount speakers in a variety of otherwise inaccessible places. A very good surround sound can be achieved for home theaters with such ceiling and wall mount speakers. There are some difficulties of installation when you don't place the speakers into a location you've used before.

Make sure that there are no support beams inside the wall before cutting it open. Also consider the wiring carefully particularly when you aim at multi-room systems. The size of the speaker and the hole you make should be well matched, and a smooth installation, you should even hire a professional.

If you go for the do-it-yourself solution, you will need a drill, a keyhole saw, a head screwdriver, some magnetic chain and electrical tape. Remember to purchase the speaker mounts too. Are you still being curious to get other information? You simply read audio spectrum analyzers and spectrum analyzers which provide useful information for you.


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Home Cinema Choice audio expert, Adam Rayner, reviews Monitor Audio's audiophile-standard Wi-Fi internet, DAB and FM radio. Visit www.homecinemachoice.com for more AV reviews and news...

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Pure One Mini dab/FM radio review

Lucy listens critically to this retro white box

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Getting a Home Theater System

If you are looking to set up your home theater system that really creates the same experience that you get from a movie theater then you are going to need a quick crash course in how movie theaters work and how you can replicate that experience at home. All you need a a screen, receiver, and surround sound speakers.

New receivers combine blu-ray and a receiver into one piece.This is will be a key piece in creating a home theater system.

One thing that makes a movie theater experience so great is the size.The bigger the screen, the bigger the action.So you you should try to get a big screen for your home. In order to view a film you need a projector.You don't actually need a projector but you will need a Blu-Ray player. Now you are all set to watch your movie as if you were in a theater.

You'll also need a good sound system if you want a better experience then simply recreating a television watching experience to a larger screen.Movie theater sound great because of the number of speakers and their placement.Theaters don't just have one or two speakers for you to hear the movie though they start with three speakers near the screen itself. One on the left, one on the right and one in the middle of the screen.However, they don't just stop at those three speakers but add additional speakers down the sides and in the back of the theater so you are surrounded by the sounds in the movie. Using multiple speakers like this creates surround sound. Now you are getting close to that theater experience but the sound is not quite right.Movie theaters not only surround you in sound but different speakers are used to give you different sounds.While people speaking may come in front of you, sounds like the wind, dripping, water and other sounds originate from the speakers placed in the other parts of the theater. In order for you to recreate that experience at home you will need at least 6 speakers.You'll want 3 in front, 1 on each side, and 1 in back.

Home theaters can be expensive but are a must for anyone who wants a great entertainment experience in their living room.Visit your local electronics shop or do some research online to get started.

Use a home theater center to learn more about systems such as the Sony home theater.