The M37V does indeed suffer from images when in the presence of strong RF. That's a problem common to most digitally tuned single conversion radios, because they lack tuned front ends which most analog tuned radios have.
Today I took the unit and parked about a hundred yards from the antenna of my local KRSN 1490, which is running 640 watts. Strong image on 590 kHz (but it could be nulled into oblivion!) The image went away after I moved about a mile on down the road. The next strongest signal is from KSWV 810 in Santa Fe. While I was at the KRSN tower site, I checked for mixing products at 1490-810=680 kHz and heard nothing. OK, so maybe KSWV is just too far away to cause intermod with KRSN. Fine with me! Images and intermod could likely be dealt with by using the radio in conjunction with a tuned loop. That's something I haven't tried yet, though. In order to test the intermod better, I'll have to go to Santa Fe where there are 2 or 3 radio stations sharing a tower. If I park near it, that should bring out any intermod products. I'm lucky, I guess, that I don't live near any powerful stations. The local is several miles away from where I live so it doesn't bother me too much. At home, I notice no images anywhere on the band. On Jan 4, 2008 7:07 PM, <[EMAIL PROTECTED]> wrote: > Russ, > > The 2007 Shootout (on dxer.ca) revealed that both the SRF-59 and the > Sangean DT-200VX perform very well in RF-intensive environments. Neither > showed any images, and there was only one very weak spur on each receiver. > The > stock SRF-M37V, on the other hand, has both image and selectivity problems > (full list on the review), but Mesa Mike's narrow filter modification may > cure > the selectivity issue. -- Mesa Mike LA de NM _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
