VHF display says, No position, no time.

[MADRIGAL]

the connector middle pin had pushed itself back into the connector and not making a connection

I will need my reading glasses for that job!

 

[MADRIGAL]

We experience temps as low as -25C or lower here

So do we. Good to know those GPS antennas survive that - and high temperatures, as Alicat says.

 

[Refueler]

If the connector is a pnc i think, push in and twist, could not get a postion on my gps, the connector middle pin had pushed itself back into the connector and not making a connection, so give it a good inspection. and try a spare antenne

Its not unusual for that pin to come loose in threaded SMA as well ... there's not much holds it !

With SMA ... there is another fault if not careful. We use SMA for various in Drone and FPV use .. particularly antenna upgrades.

The base socket is fine - but the plug can if not bought as a pair - be a touch too long in the threaded outer. When screwing in place - the outer reaches final thread but pin is still not fully home ...
I usually grind of a small amount of the outer to make sure plug pin gets fully home before outer thread finishes.

 

[littledancersadhu]

Thank you, i will be checking this next time i am using one of these connections.

 

[MADRIGAL]

If you change the GPS antenna, try it below deck first.

I'm pleased to report that replacing the GPS antenna puck has resolved the issue: position, time, and SOG are now all
reported. A forumite reported by DM that he had experienced the same fault and that Icom had told him there was a problem with the GPS antennas for these sets. Thanks to Paul Rainbow and Refueller for advising that the antenna would work just fine through a GRP deck; it is now in the lazarette with the VHF and I did not have to faff about getting the metal connector through a deck gland!

 

[PaulRainbow]

Good to hear you have it sorted and thanks for reporting back.