I think it was in 1991, when I was 10, that I got bit by the MWDX bug.
I had gotten a bicycle for my birthday, and it came with a free sports radio. (BTW I was, and still am, about a couple miles or so south of El Cajon, CA.) It wasn't all that hot in performance, and even then I could tell there was a lot to be desired. Sensitivity was poor - KNX and KFI were barely readable, for example... and to make matters worse, selectivity was no better, allowing 5kW signals on 910 (9mi) and 860 (in Tijuana) to bleed over each other.
In spite of its poor performance, I was listening under the covers one night, and noticed an extremely faint station sandwiched between 860 XEMO and 910 KECR. It was too faint to ID, but I could hear voices.
I noticed the next day that I couldn't so much as find a trace of it, so that evening I asked my dad (who's an RF engineer) about it, and he explained skip to me, how the ionosphere reflects signals at night but not in the daytime. (Of course I know now that skip
can happen during the day, especially in winter - KFBK can often be heard at noon, for example.) We listened on a car radio (due to the poor sensitivity of the pocket freebie) and identified the station as 890 KDXU St. George, UT.
Within a few years after that I got a Zenith Royal 705 with a tuned RF front end, free from a friend. I still have it, but I think it needs alignment, as I have other smaller radios that beat it on selectivity. On my 13th birthday, I got a Panasonic RQ-SW10, which lasted several years (after replacing the first one within a couple weeks cause the AM section died), and I have since had a couple others of that model, as well as the '20, at least 2 of which I still have, one being currently operational.
I also had at least one, if not two Sony SRF-42 AM Stereo radios, and enjoyed listening to Radio Disney 1110 KDIS before they switched to IBOC. The Panasonics couldn't hear 1110, as 1130 KSDO was splattering loudly on 1110, and could even be heard on 1100.
Somewhere in there, a few years ago, I got a Select-A-Tenna, which helped quite a bit.
About a year ago I got a Tecsun PL-380, and have been using it quite a bit. I'm a bit disappointed that it is quite prone to desense?blocking, though. Although it has the best IF selectivity of any radio I've had, the front end leaves a lot to be desired. My Panasonic, with its wide filter, does a much better job hearing DX 100+ kHz off a strong local than the Tecsun.
Sometime in September, IIRC, I heard my first ever trans-pacific station on the PL-380, aided by the SAT. It was 774 JOUB Akita, Japan, and the SAT did a good job of keeping the blocking/desense from 50kW-@-7-mi 760 KFMB to a minimum. I have since tagged 3 more - 657 Pyongyang on the same day, and later 594 JOAK (dug this out from between 600 KOGO 8 miles west and its IBOC) and 972 HLCA.
I also got a Sony SRF-59 a couple months ago, and it actually does quite well for its size and price. It gets the best signal on 1110 KDIS (yes, I'm a Radio Disney fan), even though it was only about $20.
I recently ordered a Tecsun Pl-606, and I hope I get it before the holidays so I can check it out.
