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iriver AFT 100 Mobile FM Transmitter by iRiver
Digital Photo Product DetailsManufacturer: iRiver Brand: iRiver Edition: Electronics Model: AFT 100 Publisher: iRiver Studio: iRiver Music Label: iRiver Product features: - Mobile FM transmitter for listening to portable audio devices through your car stereo
- Transmits to all FM frequencies (88.1 to 107.9 MHz)
- Plugs into standard car power socket--no batteries required
- Connects to the headphone jack of portable MP3 or CD players; easy-to-read blue LCD display
- Universal accessory for all digital audio players compatible with a 3.5-mm mini-jack
Accessories:
Digital Cameras Photo Reviews of iriver AFT 100 Mobile FM TransmitterCustomer Review: Flawless Out-Of-The-Box Summary: 5 Stars
I've looked into several different FM transmitters on the market, since it seems some of them do not perform particularly well. After reading many of the reviews on here for this product, it seemed that it would be the best of the FM transmitters available.
On to the details...
Background: I drive a 2004 Pontiac GTO and I live in San Diego, one of the 10 largest cities in the USA. San Diego has a population of approximately 1.5 million people. We also have some radio spillover from the Los Angeles Metropolitan area and Mexico, due to our proximity to both. My antenna is built into my rear window. <u>Note to many reviewers and potential users:</u> the antenna is NEVER in or near the actual receiver deck. During many of the reviews of various FM transmitters, people attempted to move their FM transmitters closer to the deck (which is of no help in reception). If your antenna is not visible on the outside of the car, it is probably built into the back window.
Initial Impressions: This device is smaller than it looks in the pictures I've seen, both here and on the iRiver web site. Aside from the plug for the lighter/accessory power socket, the main block of the unit measures approximately 1.5 inches square at a height of .5 inches. This was a concern of mine, since the accessory power socket for the GTO is inside the center console and near the side, but clearance was not an issue. The front panel is simple but provides all of the promised functionality.
Installation And Configuration: Installing the device is a trivial process; remove from package and plug into socket. Tuning the device is easy and can be done in .1 mhz increments, so you can tune to an even decimal frequency (i.e. 90.2) if your receiver supports it (most only support odd decimal frequencies). The unit retains your last used frequency and starts transmitting on it upon power-up. The three presets work as promised, allowing you to store three frequencies to immediately tune. I spent about 10 minutes going through all available frequencies on my receiver to find several suitable ones. <u>Note to potential users of any FM transmitter:</u> ideally, you want to find channels that are pure static, so listen carefully for any weak signals that may be on a frequency before using it.
Operation: I connected my MP3 player (Creative Zen Micro 6GB) to the input of the device and started playing some tracks. I found that I needed to set the volume output of my MP3 player to about 75% to achieve a sound level comparable to CDs. The iRiver supposedly has an automatic shutoff feature, but this has not been particularly important for me since my car shuts off power to the accessory socket anyway. I have not had any problem with the device shutting off during quiet portions of tracks or pauses between loading tracks. The transmitting power of the device seems to be fantastic. I use an otherwise empty frequency (89.1), but the iRiver decently controlled the two frequencies around that one (88.9 and 89.3) as well. I have no static or clipping. I further tested the iRiver's transmitting power by putting it on the same frequency as a local station (90.3). The iRiver fully took control of the frequency, with the only evidence of an existing station being a slight bit of background static that is not present when using an empty frequency. I was very impressed by this, especially since the transmitter is inside the closed console of my car.
Sound Quality: The quality of the audio is excellent. I would consider it superior to FM radio and quite close to CD audio. iRiver advertises a frequency response range of 15hz - 15khz, which is suitable for most applications (the limits of human hearing are around 22-25khz and compressed formats rarely carry above 20khz). I noticed a little distortion in some of the higher frequencies, but that was on MP3s encoded at 128kbs. MP3s at 192-256kbs had no such distortion. <u>Note to potential users:</u> MP3 bitrate is important here. 128kbs encoding will produce audio distortion and artifacts, particularly in higher frequencies, regardless of your playback device. 192kbs or higher is recommended for MP3 encoding. Furthermore, don't accept newer formats at less than 128kbs. OGG, WMA, AAC, etc., should be done at no less than 128kbs.
In summary, I am very impressed by this product. It performs exactly as advertised and has presented no flaws to me.
Description of iriver AFT 100 Mobile FM TransmitteriRiver (AFT-100) iRiver Mobile FM Transmitter The iRiver AFT 100 Mobile FM Transmitter lets you listen to your iRiver player and most other portable audio devices through your car stereo. All you have to do is plug the transmitter into one of your car's power sockets and the headphone jack of your player, sync frequencies with the stereo, then turn the volume up. You can pick whatever FM signal you choose, and this small transmitter with a big, stylish blue display needs no batteries. What's in the Box AFT-100 mobile FM transmitter and instruction sheet.
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