WSAK295

Just venturing into the GMRS realm and looking for a source for an assortment of quality SMA connectors and adapters. Back before retirement I did tech stuff at an FM. But the stuff for professional use was very expensive. I can't afford that level but is their a good source for this type of hardware. Is the assortment found on Amazon good enough for tinkering with my radios and antennas etc. Thank You.

As far as anyone knows does the BTECH GMRS-50V2 have SOC or Superhetrodyne chip?