Re: [Elecraft] 160m noise

Hi, I think I found the problem. Since I had another K3 I took the KR mixer board from one of the radios and put in the one with the problem and the noise went away. So I started measuring on the board and as soon as I put the oscilloscope probe on the +5V pin the noise went away. So by the

Re: [Elecraft] 160m noise

Thanks Jay! Correct email address:  supp...@elecraft.com Typing too fast today.. Eric /elecraft.com/ On 11/8/2019 2:39 PM, Jay Rutherford wrote: Eric, Typo on "supo...@elecraft.com" 73 Jay K3BH On Fri, Nov 8, 2019, at 16:27, Eric Swartz - WA6HHQ, Elecraft wrote: Hi Mikael, Make sure you

Re: [Elecraft] 160m noise

Hi again, I tried the factory settings and the problem does remain. I made a Youtube clip which shows it and the noise goes away below 1320kHz and above 2150kHz. Here is the clip, So I really feel this is a problem in the radio and not anything else. 73 de Mike,

Re: [Elecraft] 160m noise

Hi Mikael, Make sure you reload your saved K3 configuration file to the radio after an EEINIT. (EEINIT clears all of the radio calibration values and any menu items you have changed.) If you didn't save the K3 radio config file first, contact supo...@elecraft.com for our saved K3

Re: [Elecraft] 160m noise

Hi Dick, I have tried plugging everything out of the radio except the power supply. Then I took another K3 and made sure I did not have the same problem on that radio which I did not have, it was totally quiet when unplugging the antennas. I took the power supply cable from that K3 and plugged

Re: [Elecraft] 160m noise

Mikael, One more thing - make sure you are comparing 80 and 160 equally. Do you have the preamp on for both bands, or off for both bands? Preamp on/off is a per band setting. 73, Don W3FPR On 11/8/2019 3:01 PM, Mikael Larsmark wrote: Hi, I am having an issue which confuses me quite a bit.

Re: [Elecraft] 160m noise

Mikael, I would suggest you try 2 things - first connect a dummy load instead of the open antenna connector. Second, leaving the dummy load in place, power the receiver from a battery to see if the higher noise is being caused by your power supply. If neither of those things make a

Re: [Elecraft] 160m noise

I'd guess power line noise. Lyn, WØLEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mikael Larsmark Sent: Friday, November 08, 2019 2:01 PM To: elecraft@mailman.qth.net Subject: [Elecraft] 160m noise Hi, I am having

[Elecraft] 160m noise

Hi, I am having an issue which confuses me quite a bit. When I unplug my antennas and listen to 80m for example I have very low noise and the S-meter does not light up a single bar. When I go to 160m and do the same thing I have S3-S4 and I can hear a much higher noise level. It is the same