[Richard Merchant]

this contribution from the tech son:

Really it doesn’t look particularly broken….  (so the question, is it broken or otherwise damaged, or just removed?….)

one google search brings me the operations manual, which indicates its designed to be removable:
https://cdn.shopify.com/s/files/1/2203/2035/files/MRHH600B_ENG_MANL_REV_01522_NO_SEATOW.pdf?v=1641487130

and the replacement part, direct from the manufacturer:
Antenna, HH600

presumably one could get a local shop to order one in if it can’t be shipped direct.