Radio Power Out Limit?

jnmeade

jnmeade

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Jim Meade
I can't find the reference if there is a limit on the power output for a comm radio on the aviation bands? Can someone cite it for me, please?
TIA.
 
jnmeade said:
I can't find the reference if there is a limit on the power output for a comm radio on the aviation bands? Can someone cite it for me, please?
TIA.
Click to expand...

I know you can buy a 16W panel mounted radio.
 
jnmeade said:
I can't find the reference if there is a limit on the power output for a comm radio on the aviation bands? Can someone cite it for me, please?
TIA.
Click to expand...
It's likely in an FCC document. They typically spell out the max transmit or radiated power in each frequency band.
 
Ron Levy said:
Here's the reg: http://www.gpo.gov/fdsys/pkg/CFR-2012-title47-vol5/xml/CFR-2012-title47-vol5-part87-subpartD.xml

It appears the limit for VHF comm is 55 watts.
Click to expand...
I see that there's a lower limit of 10W for "Aeronautical multicom" and "Aeronautical advisory". Perhaps the latter is for an airport's unicom ground station. I wonder if airborne comm transmitters with more than 10W output are required to limit power on frequencies designated for multicom. IIRC, most GA comm transmitters are 10W or less on all freqs.
 
gismo said:
I see that there's a lower limit of 10W for "Aeronautical multicom" and "Aeronautical advisory". Perhaps the latter is for an airport's unicom ground station. I wonder if airborne comm transmitters with more than 10W output are required to limit power on frequencies designated for multicom. IIRC, most GA comm transmitters are 10W or less on all freqs.
Click to expand...
Those two are for the ground stations licensed as those types. The restrictions associated with them are NA for aircraft comm systems.
 
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