![]() ![]() The TX-11b is the same as the TX-11a, simply removing the 300 Ω FM antenna input and making some minor circuit updates. Mine easily recalled everything in January 2015 after being unplugged and stored since June 2014 or seven months. It remembers station presets a long time when not plugged in. Listen, and you'll be astounded: the AM section of this Carver sounds better then AM HD radio because it has none of the digital data compression artifacts that make HD radio sound swimmy and wishy-washy. On AM, it also picks up far more and better long-range broadcasts than other AM/FM tuners, and on decent signals, sounds just like what's going over the air, and not like a honky little radio like every other AM section. ![]() This Carver tuner does not, and sounds like a professional AM broadcast monitor. In all honesty, all consumer AM tuners sound like you're listening through a paper-towel roller because consumer tuners roll-off the high and low audio frequencies. Even at Narrow, the AM section is far superior to any other consumer AM tuner. On AM, as well as FM, it has two IF bandwidths. Since it has such great AM response, it also has a patented 10 kHz notch to remove beats. On AM, it has a very clever and patented noise blanker to improve listening, and most importantly, has superb high-frequency response not found on other consumer AM tuners. In Stereo, it cancels, not filters, the 25 Hz pilot. The AM section has full low-frequency response it's not rolled-off as it is on all other consumer tuners. The AM section is quite unlike anything else: it's wideband and has a Motorola C-QUAM stereo decoder, not that anyone is broadcasting in AM Stereo anymore. The TX-11a has the FM section of the TX-11, and adds a very special AM Stereo section. ![]() See its ad in the Carver section of the October, 1985 issue of Audio magazine. For most people who are using only a crappy indoor antenna, this tuner will outdo most other tuners because of these circuits.Ĭarver's crazy-name for these circuits is Asymmetrical Charge-Coupled Detector, which has nothing to do with how it works, but sold more tuners to those without FCC 1st-Class radiotelephone licenses. What makes the TX-11 special is the extremely clever patented stereo manipulation circuits that turn weak or distorted broadcasts into very listenable signals. The FM section has a fairly ordinary, good RF section with wide and narrow IF bandwidths. ![]()
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