NMEA output from Montana 700 on AMPS mount

8540312 over 4 years ago

I have been unable to see any NMEA messages on the data output of a Montana 700 in an AMPS mount.

I have tried various settings on the Advanced NMEA setup screen (such as baud rate and GSV messages).

The Garmin Textout and Garmin Serial interfaces work ok with the same setup so the hardware and wiring

should be working correctly - there are just no NMEA messages.

Has anyone had success with NMEA o/p ? Is there anything that I might be doing wrong?

Regards

David Owen

Top Replies

radiorover over 4 years ago +2 verified

NMEA output works with firmware 6.40 beta.

All Replies

0 radiorover over 4 years ago

Same issue here. Only Textout works.
Probably a bug in the firmware.

Henry

0 atlas_cached over 4 years ago

Which software are you using to read the NMEA data?

0 radiorover over 4 years ago in reply to atlas_cached

Realterm. A simple Serial Terminal.

0 atlas_cached over 4 years ago in reply to radiorover

Thank you. How do you have that program configured for NMEA vs TXT?

0 radiorover over 4 years ago in reply to atlas_cached

Again: it is a serial terminal application.
You don't need any special configuration for NMEA or TXT in it.
It displays the raw output from the Garmin Montana RS232.

0 atlas_cached over 4 years ago in reply to radiorover

I have RealTerm 2.0.0.70 installed but am unable to communicate with any of my Garmin GPSr, thus the question about setup you were using.

0 radiorover over 4 years ago in reply to atlas_cached

Depends on your Garmin select at the tab Port:
Baud 4800 or 9600, none Parity, 8 Data Bits, 1 Stop Bit, no Hardware Flow Control (4800 8n1, 9600 8n1)
At "Port" select your connected serial port.
Only Text Out works here.

0 radiorover over 4 years ago in reply to atlas_cached

RealTerm, my position is unrecognizable here

0 atlas_cached over 4 years ago in reply to radiorover

What cable setup are you using? Serial or USB? Thank You!

0 radiorover over 4 years ago in reply to atlas_cached

You need a USB to Serial DB9 RS-232 converter or similar if your PC doesn't have a COM-Port.
Connect blue with Pin 2, yellow with Pin 3 and green with Pin 5.