Hello Mike!
1. How does receive performance compare to the K-2; is the raw
performance much better, or are there just more features and flexibility?
Better :-)
2. You said RF Gain is seperate for main & sub rcvr? There are 2 AF
Gain controls but only one RF - how does this work?
With limited panel space on the radio yet wanting to offer full
flexibility, we have a "B.SET" button that maps the front panel controls
to the subreceiver, among other traits.
When this occurs, the panel is controlling the sub receiver (except for
AF gain as you noted). This lets you set up the DSP selectivity
controls and RF gain among other things. It also lets the sub receiver
take over the S Meter display, for example.
3. Are the "roofing filters" regular xtal filters - they are in the 8
MHZ IF - and the DSP filtering in the 15 kHz IF?
Correct on both points. The DSP also includes audio filters, Tx and Rx
equalizers, etc.
4. Is TX general coverage or ham bands only? I'm a Navy MARS op.
Tx can go outside the ham bands, but is locked out in firmware. MARS
operation will be possible, however.
5. How fast is the QSK compared to the K-2?
Faster. Much faster.
6. There are RX ANT IN and OUT jacks on the back panel - what is the OUT
jack for - another receiver?
Yes, or adding a "field day filter" or ??? in line with the receiver.
Thanks for all the answers this morning. Hope you don't get karpal
tunnel from all the typing.
Thanks!
73,
Lyle KK7P
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