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New radios vs. Old radios.

C

chrisalcorn

Guest
I have a two year old Pioneer VSX-D412 receiver and this thing has THE WORST FM tuner I've seen. I had and old Realistic that had sensitivity and selectivity that were very good. But this thing bleeds a 50kw station at 40 miles away almost two channels away. I miss my old Realistic with the mechanical tuner. The AM section does a great job however. I just bought a Sony car CD tuner and it does the same thing. When driving through a large city, I have difficulty with stations from that city that do not have as much power as others from the SAME city. What gives????
 
I gave up on using home units as a DX tuner, and use my old car stereo, being powered by the power supply from a broken external hard drive. it works great on FM but can't even pick up locals on AM. The one I use in the house is a JVC KD-S890 that I replaced in the car, because it had terrible sound quality, with a Pioneer DEH-4800MP. I used to like Sony, but I wouldn't touch them if the thing was given to me now.
 
Is your Pionner radio a home radio? If it is the car, you should get a new one, from probably a different company, like Delco, for example. I tried a Delco radio and I got stations to 100 miles away while I was in Union Gap, WA in August. If it is a home radio, take it back and find a new one. It should not bleed too much.

-crainbebo
 
You will literally have to pull my old GE Superadio 1 and Superadio 2 out of my cold dead hands...other than
that...Sony actually put out a decent small digital FM/AM/TV radio a couple of years ago. It was very sensitive on both AM and FM. As a matter of fact, the first time that I heard about that unit was on this board!
 
Most new radios use single IC designs. There was a poster on here named Shredderman that did an expose of these monstrocities a while back. Photograph after photograph of the interior of new radios - all using a single IC and only ONE FM ceramic filter, and ONE AM ceramic filter, resulting in horrendous selectivity, especially on AM. There is a curious side benefit - those AM receivers are all wideband audio, you put a local station in there with a good audio chain and they ought to sound great. Unfortunately, put an HD AM station in there and it hisses like a Madagascar hissing cockroach. I know because I check Shredderman's claims on my daughter's iPod docking station. Sure enough, one IC, one ceramic filter, wideband as heck on AM. While I had it open, I put in a decent ceramic filter on AM and FM, and it helped the situation quite a bit. But - it is a digital unit and the AM is now 5 kHz off. But no more crosstalk from stations 40 kHz away. Similar situation on FM, I now can get a rim shot 70 or 80 miles away, with only the wire antenna stretched out. And it is 400 kHz away from two locals. Not bad for a cheapie!
 
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