I'd say C212 and L7 form one matching network, C214 and L5 form another matching network.
As Curt noted, the 0.1uF caps at C211 and C215 are extremely large at 45mhz, pretty much 0 ohms AC impedance.
They are there to prevent any DC across the quartz crystal, which could permanently degrade it.
Jerry, KE7ER
On Sat, Apr 13, 2019 at 06:44 PM, Joe Puma wrote:
Thanks Curt. I probably meant C212 which is 22pf. Gets a little rough remembering component numbers when youre trying to recount. :) ?
?
