I actually went into Amazon and contacted the seller and they were great and quick. They sent me the manual after sending them a photo of the two boards inside. I guess they have used a few. Hope that helps.
Well that sucks. Thank you for looking. You appear to have a newer model without that wb3s chipset. The Wb3s does not have external antenna. I found the spec sheet on the chip. Mine also has relays and not solid state like yours. I’ll try emailing them I guess. Thank you!