Wayne: An Elecraft Transverter for below 510 kHz would be well received, world wide. I guess the number of participants would be rather low to start with but interest would increase with the availability of such an item. A poll of the amateur market would give a good indication of interest. If the numbers aren't there to warrant such venture, then maybe one of the small kit-providers might pick up the banner. Presently, I see two potential customers; KL7UW and myself. How's that for a start? ;) 73 de Bill-w7kxb . .
> From: [email protected] > To: [email protected] > Date: Sun, 8 Jul 2012 08:49:25 -0700 > CC: [email protected] > Subject: Re: [Elecraft] KX3 Receive Performance Below 1500 kHz > > Hi Ed, > > The KX3's spec also says, "Note: Sensitivity decreases gradually below > 1.5 MHz due to protective high-pass filtering...." We did this to > ensure that the PIN diodes in the T/R switch are protected. A fairly > large amount of attenuation is required by the time you get down to > 500 kHz or lower. > > We did do some transmit tests in the 470 kHz range. We can easily get > +10 or possibly +20 dBm output at these frequencies, but you'd need an > external filter/amplifier to obtain useful transmit power output. > Given that, I would think that an external receiving converter that > shifted the 0-1 MHz range up to 7-8 MHz on the KX3 would also be a > good solution. The KX3 has transverter bands that can be set up for > this application, allowing the VFO to read correctly when on this > band. The ACC2 GPIO pin could be used to turn the external converter > on/off. > > The K3 has the same high-pass filtering in the main antenna path as > the KX3. But the K3 also provides a way to bypass the filter, by using > the KXV3's RX ANT input (or the XVTR input). > > 73, > Wayne > N6KR > > ______________________________________________________________ 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
