venkatkumar
venkatkumar
Branch Unspecified
30 Sep 2008

Range of free band

What is the range of licence-free frequency band upto 1 kilometers?
venkatkumar

venkatkumar

Branch Unspecified
01 Oct 2008
What is the range of license-free band frequencies
upto 1 kilometers?It's very urgent.....
docel

docel

Branch Unspecified
01 Oct 2008
There is NO licence-free band for a received range of 1km.

This is difficult to digest, as all power output constraints talk in terms of ERP which is a function of bandwidth and Frequency.
Besides, the main rule for Licence-free band operations is Low power Short Range devices without external antennae.
All specifications are in "funny" techno-legal language, less understood by lesser mortals. But the end result is the same: There is NO Licence-free band for a range of 1KM.
Meaning, the rules does not allow Free communication beyond 100m.
sauravgoswami

sauravgoswami

Electronic
01 Oct 2008
Buddy,why dont ya try using HAM radio frequency!!!!they are available for free
venkatkumar

venkatkumar

Branch Unspecified
03 Oct 2008
sauravgoswami
Buddy,why dont ya try using HAM radio frequency!!!!they are available for free

what is HAM radio frequency?
sauravgoswami

sauravgoswami

Electronic
03 Oct 2008
well tat depends on the operator,i will definately let u know the frequency in my area!!!!
docel

docel

Branch Unspecified
03 Oct 2008
Sorry, friend.....HAM (Amateur Radio) frequencies are NOT free.
03 Oct 2008
No flames, please!

We all are here to share knowledge; everyone's intention is to help each other.

#peace#
sauravgoswami

sauravgoswami

Electronic
07 Oct 2008
hey docel,why dont ya take permission form the authorities,they provide access to frequencies for experimental purposes and wat more, u can get watever bandwidth u require,u just have to convince them!!!
docel

docel

Branch Unspecified
08 Oct 2008
Huh????
Have you tried for that permission anytime??
venkatkumar

venkatkumar

Branch Unspecified
09 Oct 2008
Frequency mixer

I want a frequency mixer circuit using op-amp(frequency modulation)...how to add the two frequencies in the transmission...
venkatkumar

venkatkumar

Branch Unspecified
09 Oct 2008
What is HAM frequency and the range of HAM frequency?
Which band is free for transmission upto 100m?

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