Garmin Nuvi 660 GPS Receiver Logo
Posted on Jan 23, 2008
Answered by a Fixya Expert

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Caller gets echo of own voice wnen using bluetooth

I'm a new 660 owner and very impressed except with bluetooth functionality. The caller gets high level of his/her own voice during a call. I've done tests: Echo is much worse if I route the Garmin audio output to my car speakers via the 660's FM transmitter. The echo stays with the caller even if I turn the car radio off (i.e. the echo is not caused by mic-loudspeaker feedback) The echo is less if I use the 660 internal speaker. If I google "garmin bluetooth echo" there are many similar reports, with some sources saying using an external mic is the answer. But I don't have one at the moment.
I phoned garmin support today, using the 660, so he could hear the echo. He agreed it was bad, and said he would inform his supervisor, but also sent me a new file to replace the existing one in the remotesw folder in the garmin folder. But the file is the same size and same name as the existing. Should I go for it? I notice other users have trouble as soon as they mess with the files on nuvi.

  • Anonymous Feb 23, 2008

    Same problem with the 360

  • Anonymous Mar 03, 2009

    i have agarmin nuvi 350 the receipients of my calls all compain of an echo when they talk to me on thier phones . Ican't seem to find a solution to mthis problem plaese can you help me

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  • Expert 63 Answers
  • Posted on Jan 30, 2008
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Joined: Jan 29, 2008
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Because this GPS was manufactured really bad is why that happens.
Before its too late I'd get a refund right NOW!
You are 1 of 5 other 660 GPS problems.
The only GPS problems are the same 660s

Hope this helps - Josh

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I need a user manual for thisSFK404 Bluetooth Visor Mount Handsfree Speaker but I cant seem to find one online so i could download it

didnt find any either too old but here is specs.



Model No: SFK404


Simply attach the Visor to the Sun Visor or any other suitable place, connect the Bluetooth hands free kit up with mobile and away you go.

Superb Quality simple Bluetooth Car Kit with Caller Id Display and Number Keypad for easier dialing.

Specifications

* Talking Time : 5 Hours * Standby Time : 150 Hours
* MIC : -47+/-1.5 * Power Consumption : Max 250mA
* Carrier Frequency : 2400MHz to 2483.5MHz * Transmission Power : Typ.1.0 dBm
* Operating Temperature : -20 ~ 70? * Storage Temperature : -40 ~ 85?
* Speaker : 8W, Max 1.5W * Digital Volume Control
* AC/DC Adaptor : 5.0V / 1A * Car Charger : Out : 5.0V/800mA
* Battery : 3.6V, 950mA Li-ion Rechargeable NK8200 series compatible

Main Functions
*Superior noise suppression *LCD Display - Caller ID/Calling time
*Excellent echo cancellation *Support Making/Ending a call
*Super full duplex *Support Voice Dialing, Number Dial




Compatibility : Compatible with all Bluetooth mobile phones
Profile : Supports for both Headset & Handsfree Profile
Bluetooth v1.1 compliant
CSR(BC02)
CDMA & GSM & TDMA

- Approvals : SIG, CE, FCC certified
FEATURES :

Last Number Called

Voice Dialing ( Providing the Phone Supports the feature.

Number Dialing

Speed Dialing

Selct wether to answer, Reject and End Calls

Volume Control

Power On and Power Off Feature to reserve battery power.

Rechargable Battery

Battery Power Status

Incoming Caller Alert ( Visor will Play a Meldoy and the Led Display will Flash Blue )

Connect to Pc for firmware upgrades ( Cable Supplied )

Bulit in Speaker

Built in Microphone

Bulit in 4Mb Memory

Noise Suppression

Echo Cancellation

Supports both Headset and Car Kit Profiles ( Phone Dependant )

Transferring Audio Feature ( Both from Headset and Handset )

Standby 150 Hours ( Uses a Nokia 8210 Battery so you can have a spare battery or simply purchase any nokia phone model in car charger to charge from your car. )

Talk Time 5 Hours

1 Year Warranty

Compatable with all Bluetooth Enabled Mobile Phones.

Handset supporting headset profile
Ericsson: R520m / R520m, T39 / T39m / T39mcc, T68m / T68mc

Sony Ericsson: P800, T68,

Motorola: A803, T280i, TimePort 260C V1.1

Philips: Fisio 825/826

Samsung: X7700

Sky: IM6200

Handset supporting handsfree profile
Motorola: V525, V600

Nokia: 6310 / 6310i, 8910 / 8910i, 3650, 6230, 6600, n-Gage

Sony Ericsson: T68i / T68ie, T610, T613, T630, Z600

Siemens: S55, S56, SX1

Panasonic: X70
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My sound is clear but caller on other end hears a echo of his own voice. HELP?

Its like calling into a radio station going on the air, and having your radio turned up while on the air you will always get an echo. Or at least a delay that other people will hear on their radio. it's the same way, with using a Car Bluetooth because they are hearing their voice coming through the speakers and going back into the microphone and then they hear that and there is your Echo. Unfortunately there is really nothing you can do except for ask them to deal with it :-(
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