"However, the radio hobby industry perseveres with narrow-band design concepts even to the present day - usually with automatically-switched front-end BPF's, the rare exception being the tracking preselectors in the pioneering JRC NRD-545 (1998)."
Not to quibble over details but JRC's varactor-tuned front end filters predated the NRD-545 by 12 years and two models -- it debuted (at least in their amateur receiver line) with the NRD-525 in 1986 and was carried over to the NRD-535 in 1991. It was also incorporated in the JST-135 and JST-145/245 treansceivers, both of which also preceded the NRD-545 by years. (Not sure about the JST-125, never did get my paws on one of them...) 73 de WW2PT <-- your friendly resident JRC quibbler. ;-) -- View this message in context: http://n2.nabble.com/Interesting-Read%3A-Dinosaur-Concepts---why-are-we-always-so-conservative--tp3174631p3175142.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
