D Peter Maus wrote:

[...]

The IF's in a wideband have to be pretty wide to accomodate some of
the services found on VHF. VHF channels can be wider than the SW
broadcast bands, so filtration in the IF has to work a lot harder to
produce adequate selectivity for SW listening where the widest broadcast
channel is less than 10khz wide. Most widebands don't do that well on HF
and below for that reason. Those that do are considerably more expensive
than a dedicated SW receiver.


As a wideband user, I'd like to comment on this...

I can't speak for the AOR since I don't have one, but I do have the
late, great IC-R8500 from Icom, and its 10.7 IF out -- the first one
shared by the whole range of the receiver -- exhibits vastly different
behavior depending on which side of 30 MHz you are on.

Below 30 MHz, it is quite narrow, as in less than 20 kHz. Above 30
MHz, it is 6 MHz wide.

AOR's behavior might be different, but it is true that any wideband
receiver will deal with issues not directly related to shortwave, and
therefore MAY be not the best choice.


--
Eric F. Richards

"Nature abhors a vacuum tube." -- Myron Glass,
often attributed to J. R. Pierce, Bell Labs, c. 1940