[Sven Johannsen]

Originally Posted by Surur

obviously the gain of the antenna is the main element in range

No, it is an element, along with Tx power, media attenuation, Rx sensitivity and a few other parameters. Not disputing that antenna gain isn't significant, but it always comes at the price of directivity. That's not typically negotiable in this sort of system, where the Rx and Tx locations aren't necessarily fixed, and there are potentially multiples of each that must be serviced.

My real objection though was in the original post.

Originally Posted by Surur

Its now obvious that the range is dependent on the gain and the transmission power of the stronger of the pair.

If that were true than we should be able to get 100M out of a pairing between a Class 1 and a Class 3. Granted you'll likely get better than what you would get with two class 3s, but nowhere near the range expected by the stronger of the pair.

[Sven Johannsen]

Originally Posted by Surur

obviously the gain of the antenna is the main element in range

No, it is an element, along with Tx power, media attenuation, Rx sensitivity and a few other parameters. Not disputing that antenna gain isn't significant, but it always comes at the price of directivity. That's not typically negotiable in this sort of system, where the Rx and Tx locations aren't necessarily fixed, and there are potentially multiples of each that must be serviced.

My real objection though was in the original post.

Originally Posted by Surur

Its now obvious that the range is dependent on the gain and the transmission power of the stronger of the pair.

If that were true than we should be able to get 100M out of a pairing between a Class 1 and a Class 3. Granted you'll likely get better than what you would get with two class 3s, but nowhere near the range expected by the stronger of the pair.

[tccox]

I surf the new with my 2215 using Bluetooth dial up modem, not through Activesync. Works very well

[lilasp]

I have a pda loox 720. Is there a bluetooth antenna that can be changed? :?: I'm new to this you guys so stop laughing.

[cng]

Raises hand*
I can volunteer to try this, I have a bluetooth adapter that I dont use :lol: .

[Sven Johannsen]

Most of these sorts of antennas are integral parts of the units and aren't meant to be augmented. The FCC approves the device as a unit, to do what it is supposed to do and not what it isn't, such as causing interference. Unless you are just a hacker/hobbyer that wants to play, I'd leave the units alone. You'll likely wind up destroying something that works before you get any substantial increase in performance.

[Jonathon Watkins]

Originally Posted by Sven

Unless you are just a hacker/hobbyer that wants to play, I'd leave the units alone. You'll likely wind up destroying something that works before you get any substantial increase in performance.

I agree with Sven here. Modding a cheap USB antenna is one thing, but doing so to your PPC is another. NOT recommended!

[davea]

Originally Posted by tccox

I surf the new with my 2215 using Bluetooth dial up modem, not through Activesync. Works very well

The same is true surfing with my Dell Axim X5 via dial-up via Bluetooth
to T-Mobile GPRS using my Nokia 3650. Works great here with NO
ActiveSync.