Ok, with what you said over the "Xtal swap" then the bandwidth issue is somewhere else - it peaks out on normal channels, but it looks like you've run into the upper limits of bandwidth I can help you with.
So the C88 C89 by TP10 didn't help - so that wasn't the problem - thanks for getting back with me on that. Now I know...
Ok, then you're in a realm of bandwidth "drive" that you need to make choices over. You've achieved nearly 2MHz, but without serious rework, you are done pushing - you've lost a lot of parts over this. You can successfully say that you did up just about every channel you can get, in-between the 11 and 10 M bands.
If you get time, search for the Cobra 148DX - it's a Tri-Bander - nothing big, but the IC 2 UHIC is made up with, broken down into, discretes. PC-879 board. It's not necessarily the circuits I'm suggesting, it's the coil numbers used - Cobra had to limit bandwidth on purpose, so they went with cans with tighter (read : Less Bandwidth) "Q" so it wasn't even Cobra that had the issue, the supplier - Uniden - did. Which would explain the "tight lipped" stance they've had since then. Perhaps even as Lobbyist's for RF Spectrum...hmmm
Galaxy does up a similar design for the 145106 chip - EPF000210Z - not a pin for pin but with them doing it on their own, kinda' categorized their slant on keeping things going when the main producer stopped production. Look for L14, their version of the VCO "peak" coil.
You've swapped out about everything you can - and then some so - back off - take a breath and look at bandwidth - see if you can locate a VCO coil or two of the size outline and winds you need to finally push the upper limits.
For 2nd harmonics, a 16MHz VCO gets you 32MHz but a 17MHz gets you to 34MHz - best results, if possible, with a 18MHz (if you can find them - or wind your own) - but it's a long shot. Again, you're pushing upper, at the expense of the lower end - so once the swap, you may not get the full 11M band back.
Sorry to see you get snagged by this bandwidth - I know you can do this. But if I could make my own boards and have the machines to do it - I'd be up against some of the more prolific manufacturers like Uniden - they seem to have turnaounds like overnight - BAM! something new in the GMRS or Marine - CB is put off and thrown under the bus...like an afterthought.
Oh well - good luck, have fun!
:+> Andy <+:
