I need dual USB/Bluetooth GPS receiver like I.Trek M7, Wintec G-Rays I WBT-300 or QSTARZ BT-Q818X.
Will those work with MS Streets and Trips? Baud rate are the same?
Any suggestions?

Streets and Trips requires 4,800 baud rate. Baud rate is not an issue while using Bluetooth connection, because it will adapt to any baud rate the program (S&T) requires. But baud rate becomes an issue via USB connection. Streets & Trips will not work via USB if the baud rate is not 4,800 (unless you use a utility application such as Franson GPS Gate, which will also adapt it's output to what ever baud rate your software requires).

Another item to consider is the refresh rate of GPS receivers. 1Hz @ 4,800 is going to work fine, but higher refresh rate, for example 5Hz, will just be too much data for 4,800. It will not work well at all, and you will see your position lagging behind quite a bit. Chose a receiver which allows you to lower its refresh rate down to 1Hz (if it refreshes at higher speed by default).

None of the dual purpose GPS units I have (iTrek M7, qStarz BT890. Holux GPSlim 236) will work with S&T in USB mode as their bit rate exceeds 4800. However, GPS Gate Express can resolve the problem if you need to use them.

Terry

Aha... thanks Marvin and Terry, can you recommend any bluetooth receiver?

I think any new Bluetooth or USB GPS receiver on the market today is just fine. Look at the battery life, if that's of importance to you, and if you are getting a Bluetooth unit. Also you may look at features such as automatic ON/OFF on Bluetooth connection, as this feature may free you from thinking about the On/Off switch. It may save the battery charge in case you forget to turn it off.

Terry, Ken in Regina, I, and several others here at the forum have tried the first unit on your list, the iTrek M7. It is a very good performer. The default refresh rate is I think 5Hz, but it includes a software utility that let's you set the GPS refresh rate to 1, 2, 3, 4, or 5Hz. Use 1Hz for Streets & Trips.

I'll second that. I love the iTrek M7 and the Holux GPSlim 236 is fine. You can't beat the qStarz BT-Q890 for size but the battery is not removable (probably not an issue as they usually last longer than the technology anyway). I also have a Garmin GPS10x but it is best if you are using Garmin with other products.

In short, you probably can't go wrong with any Bluetooth GPS receiver that catches your fancy. All will work fine with S&T when in Bluetooth mode.

Terry