hi Eric:

honestly i was trying to help. if you hook a large air-core air-cap [high-
Q] tuned loop to your RX340 you should be very happy with the results on
LW. you are correct, DR is not a big issue with this setup. if you hate the
R75 that is fine. one of the best out of the box units is the R8B. people
who say one cannot program listen or DX with the [insert tabletop name
here] are full of it. i've done experiments bearing this out. the tabletops
are more similar than they are different. buy whatever suits your fancy and
use the best antenna possible. i will call a spade a spade. the 7030 and
6790 have high IP3 mixers. AFA that 1000' antenna: 670-kHz is 3/4
wavelengths resonant at 1099'. radios are going to suffer from overload. i
suggest trying a series-resonant trap that: this should dump much of that
670-kHz energy to ground before it enters the radio.

regards,
phil