@Shirley Dulcey KE1L
I have seen China-made APC7-to-N adapters going for <USD20 online; i.e. about a third of the nanoVna's cost. You will need a minimum of one cable and two adapters to test a two-port DUT. Yes, I do see your point that adopting the APC7 will double or triple the cost of nanoVna ownership, but what other recourse is available for measuring a DUT with same sex connectors (i.e. non-insertable devices)?
@ Jerry Gaffke
Prior to my post, APC7 has never been mentioned in this group. :-) So, there's no APC7 camp, not yet!
Leong, 9W2LC