Jerry,
I have been following all of the threads you have listed above.? Note that the low pass filter by Ashhar is the newest.? I have read that Raj has agreed that either the LCL filter OR his replacement of L5 and L7 do reduce the spurs.? The solution from Ashhar is more complex, in that there are bias resistors that need to be replaced as well.
Ashhar stated in the 61645 thread that the "relays as supplied now" do not need to be replaced.? It is not clear if that means that there are new parts being installed in the current shipping product, or if the originals are OK from v4 boards.? I have been looking for someone to receive a v5 board in the hopes that all of the corrections needed are on that board and we can lay to rest the correct solution to use to solve the spurs and harmonics.
In the meantime I am off the air until I do something.? That may be wait for the QSX from QRPGuys if it becomes available before a v5 board from HF Signals.
73
Evan
AC9TU
