shadow_man
Executive Member
What is the legal amount one can amp signal too in SA?
Most other places its 1W is it not?
Thanks and Regards,
J
Most other places its 1W is it not?
Thanks and Regards,
J
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Legal Amping Amount?
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Pilgrim
Wugger
/gets popcorn
shadow_man
Executive Member
I can't find any documentation on it. I know its not a joke as amping can cause disruption to emergency services etc, but im not sure what the limit is.
Legitimate advice please.
Thanks
J
shadow_man
Executive Member
Can you tell me why? Can you provide me with info as to what the legal limit is in ZA?
I want to know why its bad to do? Please enlighten me.
Thanks
J
rebel998
Expert Member
Amps and omni's, the two words that should never be said aloud here.
shadow_man
Executive Member
Amps and omni's, the two words that should never be said aloud here.
Can anyone please be more vague? I don't want to amp if its wrong but I want to know WHY its wrong.
Thanks
J
Basically you cause yourself huge noise problems, and then you stuff up the frequency for everyone else in the path of your radios.
Also the max output allowed in South Africa is low, and pretty much any amp out there exceeds these requirements. Also there is no reason to amp, good quality radio cards, good quality antenna's and a good install win all the time.
I've seen a 50km point to point link running on CM9 cards back to back, getting a -62 signal strength and 98/98 CCQ
Also the max output allowed in South Africa is low, and pretty much any amp out there exceeds these requirements. Also there is no reason to amp, good quality radio cards, good quality antenna's and a good install win all the time.
I've seen a 50km point to point link running on CM9 cards back to back, getting a -62 signal strength and 98/98 CCQ
Extracted from Government Gazette 31290 as amended - power limits for licence-exempt use of radio spectrum.
2400MHz to 2483.5MHz (2.4GHz to 2.4835GHz) - 100mW EIRP (20dBm EIRP)
5150MHz to 5350MHz (5.150GHz to 5.350GHz) - 200mW EIRP (23dBm EIRP) - indoor use only.
5470MHz to 5725MHz (5.470GHz to 5.725GHz) - 1W EIRP (30dBm EIRP) - indoor and outdoor use.
5725MHz to 5875MHz (5.725GHz to 5.875GHz) - 25mW EIRP (14dBm EIRP)
"e.i.r.p" means effective isotropically radiated power;
"e.r.p" means effective radiated power, the product of the power supplied to an antenna and its gain relative to a half wave dipole in a given direction.
(Source: http://www.ellipsis.co.za/wp-conten...n_frequency_regs_2008_as_amended_14082008.pdf)
Calculating EIRP is simple if you work in dB (decibels). Transmitter output power in dBm + Antenna Gain in dBi - coax/connector loss in dB = EIRP in dBm.
*Trybble.
2400MHz to 2483.5MHz (2.4GHz to 2.4835GHz) - 100mW EIRP (20dBm EIRP)
5150MHz to 5350MHz (5.150GHz to 5.350GHz) - 200mW EIRP (23dBm EIRP) - indoor use only.
5470MHz to 5725MHz (5.470GHz to 5.725GHz) - 1W EIRP (30dBm EIRP) - indoor and outdoor use.
5725MHz to 5875MHz (5.725GHz to 5.875GHz) - 25mW EIRP (14dBm EIRP)
"e.i.r.p" means effective isotropically radiated power;
"e.r.p" means effective radiated power, the product of the power supplied to an antenna and its gain relative to a half wave dipole in a given direction.
(Source: http://www.ellipsis.co.za/wp-conten...n_frequency_regs_2008_as_amended_14082008.pdf)
Calculating EIRP is simple if you work in dB (decibels). Transmitter output power in dBm + Antenna Gain in dBi - coax/connector loss in dB = EIRP in dBm.
*Trybble.