Supposedly in 1980 the SRX-30 was a competitor to the Yaesu FRG-7 & Radio Shack DX-300, its price point lying in between those 2 models. I just bought an SRX-30, used and for a decent price. I wasn't sure exactly what to expect. Well...I plugged it in & was copying CW and also the WWV time station -- before I even connected an antenna. No lack of sensitivity on this radio! To be brief: the SRX-30 is one of those 'just a short stretch of wire out the back the radio' type of rigs. It really pulls them in, from MW to 10 meters.
My biggest surprise is that its stable. I mean completely stable. Within 20 minutes of connecting a wire I had excellent SSB copies on 80, 40, 20 meters and the aeronautical & marine bands -- and I never had to touch up the BFO (clarifier). I didn't expect this level of stability at all, I was in fact expecting drift. Which I thankfully didn't get.
This radio has a powerful audio stage, so be careful with the volume control. Medium wave broadcast stations sound excellent, just enough tone to be comfortable on the ears, none of that shrill stuff.
Yes, some outside trash does break in on certain parts of certain bands, but that's pretty normal for a lower priced rig of this vintage. Regardless of that I'm extremely pleased with this older, somewhat rare rig. I do not hesitate to rate this an excellent value for the money spent.