Hi Breck –

This is the ideal receiver for SAQ HW1390A Commercial Re HRB Systems Inc., Linthicum Heights MD | Radiomuseum.org . I also have one. From what I understand from the fellow who posted his on the Radiomuseum page, mine is the only other one he has ever seen and has been trying to find info on it for many years. It goes continuously from 5 KHz to 2 MHz. The only time I tried to listen to SAQ was many years ago using a nice Rycom selective voltmeter. I did hear them briefly using my 290 foot inverted V. No hope now since when a tornado downed a 100 foot tree 2 years ago that hit my house, it took my ladder line with it. Now at a few months from 80, I have no hope of fixing it and even getting back on the air. 73 – Mike

These receivers look like excellent candidates for SAQ reception. Next broadcast from Grimeton is July 2.
K4CHE