Thanks Lynn for the hints.<br><br>So, first I reverified that removing the ":" did not work (which I thought I tested before the first message). Indeed that did not help.<br>I then turned off position ambiguity and tried the "m/500". It worked! <br>
It then occured to me that the "m/500" filter was NOT preceeded with either ":filter" or "filter". Hmmmmm.<br>So, I removed the :filter string on my original filter and it nows seems to work fine!<br>
<br>73, <br><br>Kevin (K1KWP)<br>