KDVR3 Operation Query

[John Wright]

Dear Group,

I have recently installed a brand new KDVR3 into my K3 (#4058).

The K3 is loaded with the latest firmware upgrade.MCU 04.25, FPF 01.14, DSP1 02.71, DSP2 02.71 and DVR 01.04

In trying to understand the KDVR3 operation I have loaded 4 short voice messages and can recall them from the M1-M4 buttons - no problem.

What I would like to do is keep a continual rolling 90 second buffer record in the DVR when listening/working DX.

I can make AF RECordings and have successfully replayed them by AF PLAY. However I am confused by the total amount of memory available for recording.

I am not sure if I am having an operation difficulty or if there is a bug.

During playback when the PLAY seconds counter is displayed I hear one recording for the total 90 second, it restarts as expected at the wrap around time at the 90 mark. However if I try to advance or retard the playback by moving VFO-B knob I hear a totally different recording randomly and the counter will continue playing but with different playback. This would infer that there is a another memory bank of previously recorded data  or that the addressing of the recording by the VFO-B knob is outside the expected range and not always addressing the same memory segment for the same SECONDS count. There also appears to be random blanks period during the playback. (I am aware there is no recording during TX at least in CW mode)

I have also noted that any previously recorded messages (max. 10 seconds duration) are overwritten and now have some of the recorded playback data in them.

So the question are for the nominal installed firmware :-

How much recording memory is there (in units of seconds)  and is there a consistent way of addressing it on playback ?

If one uses the rolling buffer record mode is the M1-M4 message memory meant to be overwritten?

Is the operation I have noted abnormal ?

Thanks for your patience reading this.

73

John G3VPW
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