This is the info Doug has given..
QUOTE...in part:
The ONIX Series will feature a 48 Channel just like the AS GRP and AS GPS HS Receivers.
Plus the Internal Receiver in the 9 Series models 859, 899, 959, 999, 1159 and 1199 is a 56 Channel Receiver
Plus the 300 and 600 Series feature the same Internal 56 Channel Receiver.
UNQUOTE
I'm pretty sure the older AS GRP and the ASGR 50 and the AS GPS HS antenna can be used on the new xx9 series...
I know the ION and ONIX heading sensor antenna is different from the AS GPS HS antenna...
I do not know if the AS GRP or the ASGR 50 can be used on the ONIX or ION...
Rickie