[Elecraft] MCU 4.51

[Toby Pennington]

I don't know what others have been experiencing using the new 4.51 firmware version,  but I really think it is an improvement.

I have been listening to pileups tonight on 20 meters and cannot discern any mushy weak cw signals,   signals are crisp and easily readable.

Maybe I need bigger pileups to get a better handle on this aspect, or certain band conditions.   I run the threshold at 14 and the AGC SLP is set to 000.

The Noise Blanker is improved.   I was able to get rid of s7 line noise,  and no distortion in the audio of the received signal.  NB settings are dsp T2-4,  and the IF is NAR 4.  So,  the noise is being eliminatd with low setting of the NB.  I suppose the real test will be when I hear  s9 plus line noise which I frequently get here. 

AF Gain is set to LO in the config menu and have plenty of nice and crisp audio. I am listening to SSB on 80 meters now and have the RF gain set to about 9:00 and AF gain about 12 oclock.  Just lots of gain and audio.  

I think 4.51 is ready to go BETA.   What do others who are using 4.51 think?


Toby  W4CAK