Re: [Elecraft_K3] K3 and KSYN3A

David McClain

That was an impressive demo video. So I ran my own tests last night on my newly updated K3 with the new synth modules installed, and also on my recently updated IC-7700.

Where that demo video gave an indication under really extreme conditions of S9+70 dB, which might be encountered in multi-radio contesting conditions, I ran my tests on a more common situation with an S0-S1 CW signal against a continuous carrier interferer level of S9+20 dB. I also used the more common bandwidth of 400 Hz.

Under these conditions, I found that I could hear the signal of interest at a separation of 300 Hz. In other words, as soon as the interferer fell outside the bandpass filter. AGC was not unduly suppressing the signal of interest.

The same results were found for both of my radios.

73 de Dave, N7AIG

On May 28, 2015, at 02:03 AM, dalej dj2001x@... [Elecraft_K3] <Elecraft_K3@...> wrote:

There is the video of the 7800 v. 7851, impressive difference, but where's the K3 video?

I ain't buying no $15000 rig!!  My K3/P3 will still outperform it.


On 27, May 2015, at 14:46, bozidar nikolic bozidarms@... [Elecraft_K3] <Elecraft_K3@...> wrote:

[Attachment(s) from bozidar nikolic bozidarms@... [Elecraft_K3] included below] 

Hi again,

this time i will show you P3 schreenshot as proof of incredible strong signal handling of  K3 with new KSYN3A board:
P3 freq. span is 5 kHz,
red band is signal 59+60dB, centered on 7.134 MHz,
K3 is on SSB mode, filter BW2.4kHz center weighted (normalized - green band) -  on 7.134 MHz,
in filter BW is SSB signal clearly and laud herd.

This all, remind me on video from IC7851 vs IC7800 RMDR characteristics, with strong signal and week one ,300 Hz offset

Icom IC-7851 vs IC-7800 RMDR Characteristics

Icom IC-7851 vs IC-7800 RMDR Characteristics
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73 de Dave, N7AIG

David McClain

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