Ultimate fm broadcAst antena

in short?

Legal To Use?

NOPE!!!

luizrosado1 it would help you to study FCC Rule 15.239.

If you have any questions about the rule come back here and maybe we can help explain the parts you ask about.

i just want to knoo if icould broadcast 30mw on fm?

i build my own part 15 antena and i cover about 1/4 mile only on cars

We have answered you.

that means yes 🙂

You can use any combination of transmitter and antenna BUT your signal field strength must not exceed that allowed by FCC rule Part 15.239.

Since most people don't have the equipment to measure such small signals a good rule of thumb is your coverage should only be about 200 to 300 feet.

Hello luisrosado1:

You asked about the Radio Brandy Ultimate FM Antenna, but you also said you built your own antenna? Do you have two antennas?

Anyway, MRAM 1500 is right. if you reach about 200-feet you are probably legal.

Trouble is, you say you reach 1/4-mile, which is 1,320-feet. That is not legal according to the rules.

36 mW is probably too much power for FM.

Car radio's are much better than even good quality hand held portables such as sangean.

With same signal strength a car will get the station 3to4 times as far as a portable, depending on the car and radio.

Would 1/4 mile be legal with car radio?.....maybe.

Best judge of legal range in the USA(other countries are different), is about 200 to 300 feet as mentioned in another post with a good portable radio, about 100 yards max.

Mark

you say its not legal but there is no license to broadcast 100mw orl esser then that

i spoke to a fcc agent and he told me there is no license to broadcast 100mw

its only 1-100 watts on fm

Even though you don't need a licence you still have to go by some rules for unlicened use.

You can ride a bicycle or E-bike on the roads with no licence but you still have to follow the rules of the road.

The FCC doesn't care about the transmitter power, just the actual signal strength you are putting out. The 100mW doesn't matter.

Mark

mark raises a valid point that we should discuss.

Automobile radios usually perform better than hand-held portable radios, which raises the question, "how to determine the 200-foot safety range of a legal part 15 FM transmission(?)"

The fault lays with the FCC itself for giving rules that are hard for regular people to understand or obey.

i understand you guys,,but hey iwant to broad 100mw legally covering a good range,,but with a license

but since there is not idont see why icant broadcast,,,like people tell me u need a license etc that is full of crap cause there is no license

luisrosado1 I tell you that for years I have told these people around here that it is insane that we are told...

You must have a license.

But when you apply for a license they say, "you can't have a license."

Therefore what?

It's the American way of logic.

Example: you have free speech.

Reality: You must be inside the free speech zone, 50-feet by 50-feet, out of sight.

It's true what Carl just said.

If you get busted for being out of compliance with your signal you are told you need a licence, but when you say OK I'll get a licence, how do I do that, you'll find you can't get one, and there's so much money and red tape involved. Even for a little neighborhood station with a little transmitter from your bedroom.

Mark