You are correct here...but, this isn't really Icom's fault, rather that of the operators....
Originally Posted by Coquina
IIRC, the IC-7300 is (in)famous for not liking being around other transmitters. This is likely only a ham thing, but something to think about.
You see direct sampling DSP radios (colloquially called SDR's) like all receivers do have certain max signal inputs / levels, but since they are taking in the whole HF spectrum at once (rather than a small slice, such as in a super-het, etc.) they become more intolerant of poor operator settings / being misadjusted.
The anecdotal reports of some has having their 7300's overloaded are almost exclusively from those that are unaware of how to use an HF receiver (you know the guys who run the gain wide open 100% of the time)....
And, while they can usually get away with this with a modern super-het or hybrid DSP rig (albeit because of this ignorance they're usually the loudest complainers regarding "noisy bands" or "all the splatter", etc.), with a open direct-sampling rig, they simply overload the A/D converters, and declare that Icom
Now, please note that I'm not a fan of the 7300 (I'm not into touch screen
radios, etc....and its transmit IMD is still rather poor!!), but fact is compared to other rigs in its price
range it stacks up darn well...now, actually the Kenwood TS-590SG is twice the radio
of the 7300, for the same $$$$....but, it's not as fancy / glitzy
So, to sum up....
As long as Icom
has designed the M-803's firmware correctly, it should be fine....(although I'm still waiting to see how well they've incorporated a "VFO" mode, noise
blanker/noise reduction, ease-of-using DSC
functions, etc. etc. etc...)
But, I doubt we'll need to worry about an M-803 being overloaded? (but, heck Ford Motors made the Edsel)
P.S. As for it needing a different cable for tuner control....I believe the "cable" is the same, just that Icom went back to a 4-pin straight Molex plug
on the M-803??? So, existing AT-140's should work
with the existing cable, just need to change the plug
at the radio
(at least that is what it looks like to me)