Frequently Asked Questions (FAQ's)

Table of Contents

Why purchase Bluetooth OEM radios over other proprietary radio modem products?

Why is BlueRadios so different from other transceiver data radio product suppliers?

I thought Bluetooth was only meant to be used within a 10-20 m range?

Does Bluetooth work on a broadcast methodology?

I know that the 2.4 GHz band is license-free, and is therefore used for many different types of applications.

Won't the Bluetooth transmission get interference from all these different applications?

Don't microwave ovens also work at about the same frequency, and won't they interfere with a Bluetooth signal?

What about security issues? I've heard that Bluetooth is not very secure.

Where will I be able to buy the BlueRadios products?

Will the BlueRadios products be very expensive?

Why use Bluetooth and not 802.11 / WiFi?

Is Bluetooth good for location awareness?


Q. Why purchase Bluetooth OEM radios over other proprietary radio products?

A. Interoperability and self discovery networking is at the core of Bluetooth technology which translates into seamless integration, installation and configuration to the adopter or end user. Bluetooth is the only technology that provides a separate dedicated voice channel. Proprietary wireless OEM radios require additional custom networking software and do not follow an international standard and will not communicate with any other products on the open market. So before you spend money on another short lived proprietary wireless solution you better think again!


Q. Why is BlueRadios so different from other transceiver data radio product suppliers?

BlueRadios does not require a host controller Bluetooth embedded stack and application. The Intelligent Serial Module AT Command Set data radio modem interface is built into the RF Base band processor. The product works like a wireless wire to the microcontroller or virtual socket to a PC, it is as simple as that! A 2.4GHz ceramic chip antenna is already integrated with the module and we can instal custom firmware prior to shipment


Q. I thought Bluetooth was only meant to be used within a 10-20 m range?

A. Bluetooth as originally envision was mainly aimed at cable replacement and synchronization applications, in which case the above range was quite adequate. Newer applications, however, require longer distances, which are why a more powerful Bluetooth radio module, Class1 have been developed with 100mW output power for a +300 meter / (1000) feet range. BlueRadios devices you can custom set the output power via software commands to achive desire performance.


Q. Does Bluetooth work on a broadcast methodology?

A. No, Bluetooth uses channels to establish connections. The radio must be connected to another radio modem for it to receive information. A point-to-point network has one available channel. Multi-point network has 7 simultaneous connection channels. You can park thousands of radio connections.


Q. I know that the 2.4 GHz band is license-free, and is therefore used for many different types of applications. Won't the Bluetooth transmission get interference from all these different applications?

A. The Bluetooth radio has built-in frequency hopping. The transmission hops through 79 different frequencies at a rate of 1600 hops/second. This gives a very robust transmission, which is not easily susceptible to external interference. It also has guaranteed packet delivery implemented and built in encryption and authentication.


Q. Don't microwave ovens also work at about the same frequency, and won't they interfere with a Bluetooth signal?

A. It is correct that microwave ovens work at a nominal frequency of 2.45 GHz, which places it in the middle of the so-called ISM band (2.4 GHz). However, modern microwave ovens are well shielded and tests have been made at very short distances (down to 1 m) from active microwave ovens, and the Bluetooth signal has remained intact.


Q. What about security issues? I've heard that Bluetooth is not very secure.

A. It is just the opposite. First-level security is actually provided by the frequency-hopping function within the Bluetooth radio. In addition to this, the Bluetooth specification provides built-in encryption PIN codes, which allow encryption up to 128 bits, which is considered to be a satisfactory level for financial transactions. Lastly the technology is based on channel connections not broadcast methodology like other radio proprietary technologies.


Q. Where will I be able to buy the BlueRadios products?

A. Contact BlueRadios, Inc. at info@BlueRadios.com for information on purchasing BlueRadios products directly from the Company or what we call factory direct. Company does not sell through distributors to maintain the lowest cost to and direct technical support to the client.


Q. Will the BlueRadios products be very expensive?

A. No, our product is the lowest priced wireless solution on the market when you take into account all the standard features and no development and certification costs. However, even from startup, the BlueRadios products are less expensive when compared with other competitor products available on the market. The BlueRadios solution does not require a Bluetooth host controller embedded stack license or fees. Product includes integrated antenna, custom software, and Bluetooth profiles.


Q. Why use Bluetooth and not 802.11 / "Wi-Fi"?

A. Bluetooth is smaller, lower cost, lower power consumption, has dedicated voice channel, and self discovery protocol. Cell phones, PDA's, laptops, and PC's are shipping now with Bluetooth technology already installed! 802.11 is for wireless personal computer networks and is not suited for battery powered mobile personal area networks."A completely unproved business model - a niche product for niche users" Click here for - Skepticism on 802.11 / Wi-Fi. (228KB)

Bluetooth is also ideal Technology for Wireless,
Location-based Internet Services

Bluetooth
IEEE 802.11
DECT
3G
Cheap (Modules, Airtime, (ISM))
++
+
+
-
High Bandwidth
o
++
-
o
Short Range
++
o
o
-
Small Size
++
+
+
+
Low Power Consumption
++
o
+
o
High Interoperability
++
++
o
++
Security
+
+
-
++
Location Granularity Basic (m)
10-15
100
100
5-1000
Location Granularity Supported (m)
0.5
5
-
1-50

SCOPE

 

Cost, Power
Location-
awareness

Performance
Voice
Coverage


 



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