Dave,
Just as a guess (I don't have either the 500 or 400 Hz filters) - do you
have the correct filter offset entered into the K3 menu? It certainly
sounds like a conflict between the roofing filter centers and the DSP
filter centers.
You have said that the filter center frequency matches your sidetone
pitch, so that rules out a mis-setting of the SHIFT control.
I cannot duplicate your problem here, but then I am relying only on the
DSP filters - I have only the 2.7 kHz filter installed..
73,
Don W3FPR
David Ferrington, M0XDF wrote:
Thanks for all the responses - to answer the questions:
Yes I'm in CW mode
yes I've used Spot and shift shows an * to indicate its centred over
the frequency
I've checked the filters and offsets, receive Filter Enables etc in
Configuration etc.
the loss of signal occurs at 500Hz, that’s before the filter switch
point at 400HZ
I have checked against RWM on 9.996 band it cuts of in the same way at
500Hz
It appears that once I go down to 500HZ, the signal is greatly
attenuated and I loose the side tone, regardless of mode, the
frequency is attenuated at that point - I can just hear the
transmission, but everything is very attenuated. I'm wondering if they
made be a bad connection of a part of the board that only comes in
below 550Hz.
When RWM is transmitting just a carrier, it gets cut off at 500Hz
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