Heinz,
Not true - the bandpass filters are extended when the K60XV option is
added. Note that there are two trimmer capacitors on the K60XV board
for exactly that purpose.
These additional capacitors are switched in so the bandpass filter can
be peaked on 60 meters.
The cutoff for the 40 meter Low Pass filter is well below the 2nd
harmonic of 60 meters, and can be used on 60 meters without signal
attenuation.
In other words, the K2 on 60 meters has the same RX sensitivity as the
other bands.
73,
Don W3FPR
On 1/18/2017 3:13 PM, Heinz Baertschi wrote:
Based on the fact that the K2 has 5 BPF and LPF only to cover 9 bands I
wonder
1) if/to what extent the RX performance on the existing bands is influenced
by the addition of the 60m band (K60XV)?
2) what RX performance can be expected on 60m (compared to the K2 standard
bands)?
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