Ok. Went for a drive and got a lock eventually. However, I'm going to need an external antenna.
The standard quadrifilar antenna disconnects to show a bnc connector. In the box that came with the GPS was a RG58 cable with the connector broken off the end.
Also, the manual says that in aircraft (or car in my case) use, I should connect the normal antenna via the RG58 cable or connect a patch antenna. There are no more details. So, I have some questions:
a) Do I need to use the RG58 cable or can I use another?
b) Does my unit use a powered antenna? (ie: are there unpowered patch antennae available)
c) Should I use the stock antenna or another one?
d) How do I fix a connector to the broken cable? I have no experience with coax.
e) Should I use another cable instead? Can I?