As well as using my K3 to drive my KPA500/KAT500 I am also using a Apache Labs Anan-10.
There is a means of improving the linearity of the SDR transmitter using “Pure Signal” This is achieved by sampling the xmit signal and making appropriate corrections via the computer. The xmit signal is sampled at the output to the antenna and needs to be appropriately attenuated in the order of 40dB. As the KAT500 already is sampling the RF for various functions I would like to tap off the RF signal to use for this feature. I see there are test points in the KAT500 marked VFWD and VREFL but unfortunately they are DC voltages and I just need RF. So, the question is, is there a schematic diagram available for the KAT500 or has anyone been brave enough to jump is and tap of some RF for this or a similar project? I notice there is a capped off hole on the back plate which would make an ideal place to fit a connector to output the signal. Peter, VK3IJ -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-RF-tap-for-SDR-Pure-Signal-tp7597353.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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
