Showing posts with label fm radio. Show all posts
Showing posts with label fm radio. Show all posts

12/07/2011

C. Crane FM Reflect Antenna Review

C. Crane FM Reflect Antenna
Average Reviews:

(More customer reviews)
Amazon's price for this antenna was the best I could find. I ordered it on a Sunday before a Monday holiday and it was delivered the following Wednesday via their Super Saver free shipping, which I considered to be excellent service. This antenna looks better than a twin-lead dipole antenna, appears to be well-made, comes in an attractive box with a balun coil (matching transformer) for connecting to screw terminals and also an alligator clip for hooking it to a built-in antenna.
Since this antenna has received mixed reviews from other users I decided to be as "scientific," as my skills and equipment would allow. I used my training as an FCC licensed broadcast engineer to compare it to the standard twin-lead dipole antenna that was included free with my tuner. I had already oriented my existing dipole antenna for optimum reception, using my tuner's signal-strength indicators. I then used my tuner's scan mode to see how many stations it could find and I carefully wrote down the frequency and signal strength for each of the many stations that I can receive. Since I live about halfway between New York City and Philadelphia, my FM dial is crowded with stations.
After establishing a base-line of performance with my ordinary dipole antenna, I replaced it with the C. Crane FM Reflect Antenna and experimented with dozens of antenna positions to obtain best reception. Remarkably, mounting the C. Crane FM Reflect Antenna in the exact same position and location, that my twin-lead dipole antenna had been installed, gave me the best performance. After this optimum positioning, I once again used my tuner's scan mode to see how many stations it could find. I then carefully compared the signal strength from each station that my tuner found using the new antenna, with the signal strength that I had received with my previously-installed antenna. Although I saw no indication of a stronger signal on any of the existing stations, I was able to pick up two more stations in my tuner's scan mode with the new antenna.
As a percentage of the large number of stations that I could already receive at my location, I considered two additional stations a very small improvement. The difference easily could have been due to minor changes in atmospheric conditions between the tests. It was certainly not as dramatic as the improvement that I expected when comparing a $3 antenna with a $30 antenna. If you're using a good twin-lead dipole antenna and have adjusted its position for best reception, I believe that you'll need to upgrade to an outdoor antenna, such as the Winegard HD-6000 FM Stereo Antenna, to get a noticeable improvement. I could not find that the C. Crane FM Reflect Antenna is significantly better.
To understand why the results turned out as they did, it might be helpful to understand how antennas work. The most effective antenna elements in the FM and TV band are the length of the radio wave that they're tuned to receive. Our FM band extends from 88Mhz to 108Mhz, which represents a wavelengths from slightly more than 109 inches to slightly more than 134 inches. The higher the frequency, the shorter the wave.
A typical folded dipole antenna is about 61 inches wide, which is half the length of the average FM radio wave. Since the dipole is folded onto itself, it has an effective antenna length of about 122 inches, which is the average between the 109 inch and 134 inch wavelength extremes of the FM band.
There are several ways to increase the gain of an antenna. One way is to increase the number of active antenna elements that are exposed to the radio waves and connect them together. Another is to use a reflector to concentrate the radio waves onto the antenna. Satellite antennas, for example, reflect and concentrate very short waves onto a rigid dipole antenna by using a dish. Outdoor Yagi FM (and TV) antennas use multiple elements connected in tandem with reflecting elements in the rear to focus the antenna's sensitivity in a single direction. Such antennas are very efficient because they use both multiple elements and reflectors to increase gain.
Ultimately the Crane antenna, no matter how attractively it may be designed and packaged, cannot defy the laws of physics. It has only a single active T-shaped folded antenna element which is exactly the same as an inexpensive twin-lead folded dipole antenna. It is, therefore, not surprising that several reviewers including me, who have compared it to the cheap variety, have found that it gives no better reception.

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Whether you listen to a portable radio or a top-of-the-line stereo receiver, the quality of sound coming from an FM station is dependent upon the stations signal strength in your area. Adding an FM antenna can help greatly, so be sure to select the best FM antenna for your needs. The FM Reflect Antenna will work with any portable or stereo receiver. This antenna incorporates a new dipole design for maximum gain across the entire FM broadcast band. Up to 213 percent more powerful than a standard dipole antenna, it covers the entire FM band with an almost flat response, where standard dipoles start to fall off near the end of the band. Many FM stations now broadcast their signal with circular polarization. The FM Reflect Antenna is the only FM antenna that can be adjusted to take advantage of this. It is not affected as much by surrounding objects and people as other FM antennas are.

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10/27/2011

Griffin iFM Radio Receiver for iPhone and iPod Review

Griffin iFM Radio Receiver for iPhone and iPod
Average Reviews:

(More customer reviews)
this product is even better than i thought! from the description it doesn't say that you can tune to specific stations (not just a list of ones that the device thinks you want to hear) i just hoped for the best when i ordered it. this means that i can use it at the gym to tune to the tvs and hear the sound. as far as i know this is the only product you can connect to an iphone/pod and do this. it does not have the iphone 4 listed as a compatible device but it works with mine. i highly recommend this product.

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iFM is a radio receiver that allows you to listen to FM radio through your iPhone or iPod. iFM works with Griffin's free downloadable iFM Controller software to provide an interactive FM radio tuner through the Multi-Touch display of your iPhone or iPod touch. Other iPod devices control iFM through their familiar Click Wheel and buttons. Use iFM Controller to tune in your favorite stations, and to save and recall presets. It's the intuitive, hassle-free way to play FM stereo on your iPhone or iPod.

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9/01/2011

Latte Ice 16 GB Video MP3 Player with Built-In FM Transmitter (Silver) Review

Latte Ice 16 GB Video MP3 Player with Built-In FM Transmitter (Silver)
Average Reviews:

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I must admit I had a couple of problems figuring out how to use this device properly, at first I even thought it was defective! After speaking with the very helpful tech support guy in San Jose, the penny dropped and I felt embarrassed that I hadn't RTFM (read the f manual)!
This is a very loaded MP3 player, 16 GB with slot for more memory, and boasts a superb FM transmitter as well as a great FM radio. You can watch movies or just listen to music, or even use it as a flash drive for your computer. It is light and portable with a quality screen and comes with great headphones too. You can use it as a recorder and listen with the built in speaker (tinny but better than nothing).
Get the optional Latte Ice sleeve to protect it. Enjoy!

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Indulge in your media library with the Latte Ice. This 16 GB personal media player boasts a crystal-clear 2.8-inch QVGA display with a 320 x 240 resolution, a built-in speaker, a built-in FM transmitter, an FM radio, and a microSD slot for memory expansion. Stay entertained no matter how far you stray.
MP3 Player The Ice supports MP3, APE, FLAC, AAC, and WMA audio files, and gives you up to 8 hours of uninterrupted playback on a single charge. Dial in a custom EQ setting or use one of the seven equalization presets (Normal, 3D, Rock, Pop, Classic, Bass, Jazz). If you want to change things up a bit, or tune into the FM TV broadcast at the gym, just call up one of the 30 FM radio presets.

Video Player Always have access to your favorite shows, movies, and pictures. The Ice supports direct play without conversion with AVI, WMV, FLV, RM, and RMVB files, and you can enjoy up to 4 hours of video on a single charge. The 2.8-inch screen is also a great way to share your photos, and makes navigating your files a breeze.

Built-in FM Transmitter You've seen it: the clunky FM transmitter in your buddy's car, allowing him to tune into his MP3 player. Latte saw it too, and decided to make it part of the package. No need for external transmitters here--the Ice can transmit an FM signal anywhere, anytime, allowing you to tune in your car or home stereo to your favorite songs on the Ic.

Voice Recording Keep track of random great ideas, grab lectures and meetings for later reference, or record whatever tickles your fancy with the included voice recorder. Capture audio through the built-in microphone in WAV format.

External Expandable Memory If you fill up your 16 Gigs too quickly, the Ice includes a microSD memory card (up to 16 GB) slot. Keep media on separate cards and pop them in on the fly for endless options.

Sleek, silver portable media player with built-in external speaker
Crystal-clear 2.8-inch QVGA LCD with 320 x 240 resolution
Supports AVI, MPEG, WMV video; MP3, WMA audio
Stores up to 2,000 MP3 songs or up to 24 full-length movies
Includes FM radio, voice recorder, and memory expansion via Mini SD slot

What's in the Box Latte Communications Ice 16 GB Video MP3 Player, stereo earphones, USB cable, manual, warranty card.






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5/06/2011

FM HiFi WIRELESS HEADPHONES 5 in 1, Super Bass, Cordless EARPHONE Review

FM HiFi WIRELESS HEADPHONES 5 in 1, Super Bass, Cordless EARPHONE
Average Reviews:

(More customer reviews)
I love these headphones. In fact, I'm online today buying a replacement set for the one I've been using for over a year (battery leaked inside base and killed the contact!). You can easily switch between FM stations, and from radio to your computer/MP3/TV by using a button on the headset. Volume is controlled on the headset. Both the headset and base run on batteries, so you don't need to have yet another electrical outlet available to use these. I am totally amazed at how long the base will transmit on a pair of AAA batteries. In fact, I never had to replace the batteries in my unit, which is why I didn't realize one of the batteries was leaking. I must admit, that I don't use the headphones more than about an hour each day, but still, the battery life is great. I really love that I can walk into my kitchen -- 2 rooms away from the base -- and still have good reception, so I can listen to music from my computer while doing dishes, making dinner, etc. You can't beat this unit for the price. Note: I don't use it for TV; just use connected to my computer for playing music, or listening to FM radio.

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Watch your favorite TV programs without bothering your family members. Listen to FM radio stations 88 to 108mhz track and locate them automatically. Use the cable to plug into other electronic devices including your computer Mp3 player DVD and CD Players. Great for those with hearing deficiency. BONUS FEATURE (Sound Monitor) Place the emitter near babies old or sick people who need care. The sounds can be heard with the receiver.

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