Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

I too have rather strong encoder pulses around 5 MHz. They peak around S4-S5 with no antenna attached, and preamp off. From prior discussions with Wayne, the synthesizers seem to be rather hot. 73, James K3JPS On Wed, Mar 25, 2009 at 5:20 PM, wayne burdick n...@elecraft.com wrote: Joe

[Elecraft] K3 Tuning encoder pulses and birdie problem

When 10m opens up this will be a serious problem. On 28005 KHz a quite strong birdie carrier, on each side of this carrier there are tuning pulses generated from the encoder in the segment 28000 to 28010 KHz. All this gets stronger with Preamp ON. Is it only my K3? Or is this on all of them?

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

With my K3 terminated in a dummy load and the preamp off, I can just barely hear the decoder pulses. I checked it in both CW and SSB, and I set both modes to 1 KHz bandwidth and adjusted the shift for the same center frequency of 600 Hz. With the preamp on they are more noticeable, making

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

Thanks for the info Dave. First, I have no sub RX so can´t comment on that. When checking this I had 50 ohm terminator right at the SO239 antenna connector. The birdie indicates 2 bars on the S-meter with preamp ON and no indication with it OFF. This is subjective of course but with preamp ON

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

G'morning, Jim: On my K3 (#202) with latest firmware, I hear only one birdie that doesn't go away when I disconnect the antenna while tuning between 28000 and 28100. That is a fast moving birdie at about 28086. I hear no tuning pulses anyplace. 73, Ken K3IU ~~~

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

at once. Wes --- On Wed, 3/25/09, Jan Erik Holm sm2...@telia.com wrote: From: Jan Erik Holm sm2...@telia.com Subject: [Elecraft] K3 Tuning encoder pulses and birdie problem To: Elecraft Reflector elecraft@mailman.qth.net, wayne burdick n...@elecraft.com Date: Wednesday, March 25, 2009, 12:33

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

Agreed. I usually operate CW with a pretty narrow bandwidth (200 Hz) and at first I didn't even hear the pulses on CW. That's why I went back and set both CW and SSB to the same bandwidth (1000 Hz) to check, and that made both modes sound the same. As I said to Jan, the issue may be worse

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

Erik N Basilier wrote: I can just barely hear the birdie on a dummy load around 28005, but it is so weak that it is not a problem. When a real antenna (beam or vertical) is connected, the encoder pulses is no problem at my rather noisy QTH. At 1kHz bandwidth the S-meter indicates S3

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

Hearing absolutely nothing from the receiver with the 1-4 NR setting on the dummy load felt a bit unsettling. I then connected a real antenna and tuned up the band until I heard a very weak real signal. Not only does the band noise completely cover up the encoder ticks in my location, but also

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

Wayne, I also have the encoder noise around 28005 - 28010. Turning on the NB at t1-4 does suppress the pulses. Not completely but they're definitely reduced. 73 -- Joe KB8AP On Mar 25, 2009, at 12:20 PM, wayne burdick wrote: If you turn the DSP noise blanker on at a low setting -- say

Re: [Elecraft] K3 Tuning encoder pulses and birdie problem

Joe Planisky wrote: I also have the encoder noise around 28005 - 28010. Turning on the NB at t1-4 does suppress the pulses. Not completely but they're definitely reduced. Also try t1-5. These are very low DSP NB settings. They should have a negligible effect on normal signals, so you