Hi all,

Colin Horrabin, G3SBI, has just updated information on the AOR AR7070
receiver, that is expected to be put into production soon, probably as
the SW development will be completed and fully tested.

The information can be read on Martein’s, PA3AKE, web site, in the
“Upconversion front end by G3SBI”:

http://www.xs4all.nl/~martein/pa3ake...sbi_intro.html

An inside picture of the receiver and very interesting information
are reported.

The AR7070 has a bandscope that will show the 25kHz bandwidth around
the tune frequency, showing a blip from a 0.1uV signal and has a
dynamic range of 110dB. NF is around 11/12dB and the IP3, for signals
within the roofing filter bandwidth is +21dBm and + 36dBm at 10kHz
spacing. All these figures were obtained without adjusting the first
mixer for optimum balance.

BTW… the first mixer is an H-Mode Mixer !!!

As G3SBI states, the AR7070 when in production will be in a class of
its own for an up-conversion radio. It is probably the first super-
linear up-conversion receiver.

Too bad AOR may not associate a transmitter to such a super receiver.

Enjoy the reading and 73

Gian, I7SWX