In article , "Michael A. Terrell" wrote:
duckman wrote:

Had a question for open discussion

Is there available, can it be done to have an AM and/ and or FM transmitter
that will broadcast over the entire AM and FM broadcast band at the same
time. Or at least multiple stations. E.G.

From 88 - 108 at once or 88-98, then 98-108
Same on AM band.

It would have to be a low power to be able to be used on private property
and limiy range to 300 mtrs

Can this be done, where can l buy it, or how do l make it

Told you it was a dousy of a question, whats your thoughts.

Not with a single transmitter. You could build a comb generator and
modulate it for AM, but the quality would be poor For FM you either need
separate transmitters, or modulate the signal and mix it with a separate
oscillator for each channel. The big question is why you would want to
do it.

You could generate it at one channel in the middle of the band then sample it
at 200 kHz to create replica spectra at the 200 kHz spacing. Probably will
need to keep the sampling pulse relatively narrow to avoid too much sinc(x)
roll-off. Any amplifiers after that point would need to support the entire
bandwidth.

Dr. G.