On Sat,10/10/2015 2:15 AM, Steve Ireland wrote:
Of course, I was talking about using a DUC/DDC in a single
transmitter/receiver urban/semi-rural station setting on a quarter to
half an acre block, which is the setting in which the vast majority of
people who subscribe to this reflector would be using a transceiver.
Your use is not nearly so much a majority as you might suspect. A fair
percentage of contesters operate SO2R. MANY hams live in proximity to
high power broadcast stations. Hams with good antennas in locations
exposed to many in-band and out-of-band signals are likely to encounter
far higher voltages at the input to the radio than you do. VK, for
example, is exposed to far fewer in-band signals than EU or the eastern
half of NA.
That said, there's one element of the RX system that is often overlooked
in this discussion -- the bandpass filters that are a part of virtually
any competent multi-transmitter station. So, while the radio itself
lacks a pre-selector, the outboard bandpass filter can provide the
pre-selector function.
So far, the only SDRs I've used have been K3s and KX3s. I like them for
their combination of features, RF performance, and user interface. What
I've seen of the UI for other SDRs makes them OK for casual operation
but useless in my station. That's something that, IMO, must also be
greatly improved before I'd consider using one of them.
73, Jim K9YC
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