Would you not agree that the element that is closest to resonance is also
the best match? With that as a given more signal is derived from that
element.

The radiation reception angle would also be lower. For example 2 elements,
one cut for 50 MHz and the other at 800 MHz. The 50 MHz element would appear
as a long wire on 800 MHz and would receive only signals directly overhead.

On frequencies above about 25 MHz, the best transmitting antenna for a
purpose is also the best receiving antenna for that same purpose.

The largest current will flow in a resonant antenna. We are interested in
developing the signal in microvolts across the fixed input impedance of the
receiver.

E=I/R meaning voltage is equal to the amount of current divided by the fixed
resistance of the receiver input. Increasing current then results in
increasing voltage, the holy grail to hear somebody. Note that ALL receivers
are characterized in microvolts required for a specific S/N ratio.

The other off resonance elements do not develop the necessary current
levels. They don't hurt anything, but are no real help. Ergo an element for
each band, either cut for a band or electrically cut by traps is a good way
to go.

Didn't mean to get so long winded...


"Frank" wrote in message
news:01c3d48e$08201270$0125250a@pixpqlbeqgavtlhm.. .
Dxluver ...

^ The radio will pick the element that is most resident to
^ the frequency your scanner locks onto and will let you
^ receive accordingly.

No. All signals from all elements are sent to the receiver. With a
transmitter, the signal will be sent to all elements but most of the
radiation will occur from the most resonate element.

Frank