Total posts : 45366
Hi Guys Here what i ran into building antenna and trying out on different am part 15 transmitters.
Copper antenna works well.
But have you try to make an antenna out of brass while i did, out of curtain rods and it worked very well.
My wire antenna worked very well, made of 12 awg.
I also found having a bigger diameter antenna did help.
I also found building a solid antenna seems to work ok. ( which will make antenna shorter do to the k factor or velocity factor which it’s called its the size of material used. )
But the biggiest thing i notice is really depends what kind of am transmitter you have and how you build the antenna to the transmitter is how it will preform.
And the only really way you can see the difference is to take a drive.
Here is a prime example i used a rangemaster 1000 and tested with original antenna and took note on s signal.
Then i took the rangemaster 1000 with my 12awg wire antenna design and took notes on s signal.
The original rangemaster 1000 102 inch whip beat my 12 awg wire antenna design in the s signal report hands down at the same distance and height. NOTE: (the receiver was at 25 feet away from transmitter in test. )
But when it came to the driving around test my 12 awg wire antenna, was stronger in audio and filled in gaps where the the 102 inch antennna did not cover very well.
I have tested on rangemaster 1000 and procaster and Graymark 533 so far.
Its a trial and error test but have have fun jeff