FAA Plans to Change to Radios with 8.33 MHz spacing?

On 4/24/2013 12:43 PM, soartech wrote:
and FM suffers from capture effect/overtalk issues (why we use AM to start with).

Darryl

Darryl,
Please explain these terms. I always thought aviation used the
outdated AM because that's what they started with many years ago.
After having used 2 meter FM radios for many years I find them to be
vastly superior to aircraft band AM radios.

The advantage of AM is that when two people talk at once you hear them
both. With FM, you get the strongest signal or, when both signals are
nearly equal in strength, you hear neither. I'll take AM for aviation
radio. For ham VHF/UHF, it's FM/SSB/digital. :-)

Tony "6N", W1DYS

On Wednesday, April 24, 2013 4:31:35 PM UTC-7, Tony V wrote:
On 4/24/2013 12:43 PM, soartech wrote:

and FM suffers from capture effect/overtalk issues (why we use AM to start with).



Darryl



Darryl,

Please explain these terms. I always thought aviation used the

outdated AM because that's what they started with many years ago.

After having used 2 meter FM radios for many years I find them to be

vastly superior to aircraft band AM radios.



The advantage of AM is that when two people talk at once you hear them

both. With FM, you get the strongest signal or, when both signals are

nearly equal in strength, you hear neither. I'll take AM for aviation

radio. For ham VHF/UHF, it's FM/SSB/digital. :-)



Tony "6N", W1DYS

What he said...

Darryl

On Apr 24, 4:31*pm, Tony V wrote:
The advantage of AM is that when two people talk at once you hear them
both. With FM, you get the strongest signal or, when both signals are
nearly equal in strength, you hear neither.

Plus, for weak signals, AM offers better signal to noise ratio. In
less technical terms, if pilot A has to really struggle to hear and
understand pilot B using AM, then pilot A would not hear anything if
they were using FM.

Bart