On 2020-10-12 8:22 PM, Don Wilhelm wrote:
> In general, the local noise will mask anything lower than -135dBm.
That may be true for the lower HF bands. However, on 6 meters or when
using the K4 as an IF for VHF transverters and/or EME the noise level
will be as much as 20 dB less than -135 dBm. That may even be true
with directional antennas above 20 MHz at suburban locations.
73,
... Joe, W4TV
On 2020-10-12 8:22 PM, Don Wilhelm wrote:
Richard,
I don't know the answer, but when you get receiver sensitivities better
the -135dBm, the exact sensitivity numbers do not mean much unless you
have an extremely quiet location.
In general, the local noise will mask anything lower than -135dBm.
I expect all K4s models to have better then -135dBm sensitivity.
73,
Don W3FPR
On 10/12/2020 7:52 PM, Richard Donner wrote:
Anyone have an idea which version of the k4 would have the most
sensitivity
for weak signals?
Thanks Richard
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