QSK is disabled when using the ATU, is there a workaround?

KT8DX

Joe N3HEE

Yes, please see my response to your previous post. It is a well documented issue.

Robert-KP4Y

The QSK operation in the Flex 6000 series is messed up! Again, I can care less about QSK itself, but really want silent pin diode operation. See https://community.flexradio.com/flexr... sadest part is that it looks like fixing this is no a priority for FRS. Actually, they usually comment on most other issues but you won’t be able to find and official response on this one. It makes me wonder if it's a hardware limitation.


73,

Robert-KP4Y

Joe N3HEE

As I’ve stated in my previous posts, QSK was broken in version 2.4.9. I documented the issue and brought it to the attention of Flex. They immediately opened a bug tracker ticket for this issue and it will hopefully be addressed in version 2.5. This is a software issue. There is a workaround for it for those that want to use QSK. To clarify the PIN diode QSK operation. They use a PIN diode for transmit path switching only. On recieve they use a reed relay. This is to improve recieve performance. Mainly to reduce signal distortion as the reed relay is a linear device. The reed relay is pretty quiet. You have to pay attention to hear it. I find QSK operation is quite good once everything is set correctly. Search the community for my recommended QSK settings. Joe N3HEE

Mike-VA3MW

Robert-KP4Y

Joe and Michael, I’m well aware of your explanation,. The point is still the same, after talking to Steve and Matt from FRS at Hamcation, I’m skeptical this is something that FRS is currently trying to fix in version 2.5 as they were unaware of the issue. Hopefully, I’m wrong. In my case, I have to switch antennas back and forth in my 6600 to get QSK back on after turning off the ATU. It’s a little annoying! 73, Robert-KP4Y

Joe N3HEE

I agree it's annoying Robert !  That's why I took the time to document and report it. It's on their radar.  It was confirmed to be an issue and assigned a bug tracker ID # 6684 on October 12, 2018. So hopefully it will be dealt with in the next version. -Joe N3HEE

Bob Dianetti

Sounds good Joe - and thanks for the info.  I'll make a note of the tracker ID number.  I did put a ticket in too before I started reading the forums here - I'll let you know what they say.  My workaround for right now is to use my old MFJ external manual tuner and bypass the internal ATU altogether.  I don't change frequencies or bands much so this isn't terrible, but I'm trying to go as "cable free" in my shack as possible.

Bob Dianetti

Robert-KP4Y

Bob, I agree this is disappointing. Hopefully, they will fix the other issues associated with QSK operation other than the inability to operate it in parallel with the ATU. For example, in my case I need to switch antennas in the 6600 to reset QSK. Also, the operational constrains on speed and delay are not consistent with the info on the op manual. Others have experience other bugs and Tim Ellison has admitted the application is broken. 73, Robert-KP4Y

Bob Dianetti

I should have gone with an Elecraft.  My ham buddies all told me so.  I like to buy American but I didn't expect such a show stopper from Flex.

[Deleted User]

I have an Elecraft coming because of this. Be here Wednesday.

Bob Dianetti

Which model did you get?

Chris DL5NAM

..... so many running Flex TRX barefoot?

[Deleted User]

Used K3 with P3 all optioned out with new synthesizer.

FRED W9TB

I know Elecraft makes good stuff !  But I don't see how anyone can stand to look at that little..... ugly box.

Ted VE3TRQ

I presume you mean the P3. Yup, a P3 with a VGA card and a large monitor looks wonderful - until you have a Flex :-)