Do you have those waves when you transmit JT65?

YV5WZ

I have noted those waves when I work with WSJT-X and JTDx......Flex 6300, Windows 10 on Gigabytes MB with I7 processor 4940K 4gHz......is it a dirty transmission????  or it is normal?





George, YV5WZ / PY3ZZZ

kr4k

I experience the same on JT-65 and JT-9 - always ensuring there is no over driving the radio.Using WSJT-X software. Not sure where it occurs. Had several local hams look at it, and they say it is clean on the air.
73/gus

YV5WZ

Thanks Gus.....same experience here....my locals ham say everything on my signal its clean....good to know Im not the only one curious about this

73 !!  George

Walt

Sometimes DAX can cause poor transmission -  I have to stop DAX and then restart it again.
It is a bug that is already on the list.  I think.

I do not show those spurs on my display

Cheers

Tim - W4TME

It is very normal.  On transmit, we monitor the low-level RF inside the radio and this is just received noise.  It is not transmitted as only the signal in the final filter is actually transmitted.  Your signal is clean.

WA2SQQ

Thanks Tim, I just learned something!

YV5WZ

Thank you Tim......I already did my 6600 reserve!!!  

Best Regards

George, YV5WZ / PY3ZZZ

K5CG

I have a Palstar HF-AUTO and these little spurious peaks show up once in a while during a tuning cycle but they always go away after the antenna is matched.

YV5WZ

Thanks Danny....SWR 1.1

Jim Gilliam

I noticed the same thing on voice and viewed one of my remotes while transmitting and it was as clean as a whistle. I was transmitting on a 6500 and receiving on a 6500 a hundred or so miles away. I was able to bring up two instances as one was received using Teamviewer, and the other transmitting locally from my computer client.

Jim, K6QE

Mack

George,

If you'll notice those images are 70 dBm down and would never go out over the air.

Mack
W4AX
Alpha Team

Tim - W4TME

Even if they were 0 dB down, they are outside of the final TX filter, so they would not be transmitted ;-)