Did you get it [the radio with the 940/1410 birdie] locally, around here?
Yes, I did. Although I don’t know its history, I find it conceivable that the IF was re-adjusted to avoid reception problems on KISN.
Although the circuit board is accessible by opening the back cover, it is in an awkward position. When I have the time, I would like to re-align the front end because tracking is poor at the low end of the band, severely hurting sensitivity. If I could fully re-align this thing, I would set the IF for either 450 or 460 kHz so that the birdies don’t land on local stations. The radio is like the one shown in this video: https://www.youtube.com/watch?v=ztE8cc4vjb8