> I would really, really like the option to disable this switching out of the > 100W PA altogether. It seems to be an utterly pointless extra complication.
Part of the point is that the DAC used to create the signal at 15 kHz, which is upconverted, is using fewer bits at lower output levels. While the gin scaling is very coarse, switching the HPA out at power levels which can be safely handled by the LPA improves the IMD of the signal being amplified by the Tx chain. iI is partly for this reason that there is a switchable attenuator in the Tx chain as well. 73, Lyle KK7P ______________________________________________________________ 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
