gurpreet312 said:Hello,
I am using GSM Module TR-800 from www.iwow.com.sg
It Cost me around RS. 2700 in INDIA.
Can Any Body Suggest me ? LOW Cost from other Companies which are available in INDIA.
Thanks in Advance
Gurpreet singh
vaibhav.k said:SIMCOM is very cheper
You can get it below 2000 Rs
Can you elaborate?blapcb said:Yes India is price sensitive..... BUT!!!
SIMcom is known to have serious quality and reliability issues.
I would not use them unless it is some student project!
GSM Man said:Can you elaborate?
I've used thousands of SIMCom modules and find that their quality is no worse than any other manufacturer. I've also used Motorola, Telit, and Benq. As with all GSM modules you must know what you are doing and design your circuitry to support the demands of these devices. The biggest problem I see with all modules is that most engineers don't understand the power needs of these devices and provide inadequate power supplies.
The most important thing to keep in mind is that, depending on the module and frequency, these radios can draw 2A or more when transmitting. This is a "burst" of current that only last a few millisconds, but without the proper power supply the voltage can dip low enough to reset or power-off the radio. I've seen many cases where the radios worked fine when operating in the 1900MHz band but failed when working in the 850 band. This is because the power outuput (and therefore the current draw) can be twice as high in the 850 band as in the 1900 band.blapcb said:Since you mentioned, can you elaborate on the power requirements you spoke of?
Most recommend a 100uF, or larger, low ESR cap in parallel with a .01 - .1uF ceramic.
stephen.chan said:For the current market, SIMCOM is the much cheaper one of GSM/GPRS module. Other like Cinterion and Telit is rather expensive than Simcom.
gurpreet312 said:Hello,
I am using GSM Module TR-800 from www.iwow.com.sg
It Cost me around RS. 2700 in INDIA.
Can Any Body Suggest me ? LOW Cost from other Companies which are available in INDIA.
Thanks in Advance
Gurpreet singh
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