Jack, Transmitting between 7.5 and 9 MHz is not permitted because we have to enforce a minimum frequency distance from the 8.2 MHz IF (and its associated IF rejection trap on the KANT3 or KAT3 module). An excluded first IF region is a fundamental limitation of a down-conversion design. The TS-480 can transmit in this range because it uses up- conversion; we used down-conversion to provide much better receive performance and allow for narrow crystal filters.
The only way around it would be to use an external transverter. I can give you details if you're interested. The K3 will work well on all other MARS frequencies within its tuning range. 73, Wayne N6KR On Dec 23, 2009, at 1:07 PM, W4GRJ wrote: > > Yes you are correct, just got off the phone with Elecraft ...it is > due to the > IF at approx 8.2Mhz. > This is a big deal to me as a MARS/SHARES operator. Waiting to hear > back > from Elecraft to see if they can move the freq up a bit to xmit in > this > area. Otherwise, I will have to put my TS-480 back on the air...glad I > caught this before selling the TS-480. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
