[App_rpt-users] RTCM to GPS 18x LVC

Jim Duuuude telesistant at hotmail.com
Tue Jul 23 02:14:39 EDT 2013


it needs both the NMEA and the 1PPS

Date: Tue, 23 Jul 2013 01:13:53 -0500
Subject: Re: [App_rpt-users] RTCM to GPS 18x LVC
From: mhebert1975 at gmail.com
To: telesistant at hotmail.com
CC: app_rpt-users at ohnosec.org

Jim,
Thanks for looking at the issue. That was the problem! I have updated the pinout for anyone else that might need it. Also, does the RTCM just need the 1 PPS or does it need both 1 PPS and the NEMA string? 


 
 
 
 
  
  RTCM
  
  GPS 18x LVC
  
  
 
 
  7
  GPPS
  <--
  Pulse Output
  1
  Yellow
 
 
  13
  +5V
  -->
  Vin
  2
  Red
 
 
  8
  GND
  
  Ground
  3
  Black
 
 
  14
  GTX
  -->
  TX Data
  4
  White
 
 
  8
  GND
  
  Ground
  5
  Black
 
 
  6
  GRX
  <--
  Rx Data
  6
  Green
 
Mike - KD5DFB




On Sun, Jul 21, 2013 at 7:41 PM, Jim Duuuude <telesistant at hotmail.com> wrote:




Dont quote me on this, but I SWEAR (from questionable memory) that the pin that
the data goes from the "puck" to the RTCM on is on the BOTTOM row, not the top
(next to the PPS), so I would (off hand) say that you have your TX and RX reversed.


Again, this is entirely from memory. I may VERY WELL be wrong.

The best thing to do is try it. 

Jim


Date: Sun, 21 Jul 2013 07:56:47 -0500
From: mhebert1975 at gmail.com

To: app_rpt-users at ohnosec.org
Subject: [App_rpt-users] RTCM to GPS 18x LVC

All,
I am setting up a voter system using the RTCM and GPS 18x LVC. Has anyone used the Garmin GPS 18x LVC to interface with the RTCM?

Here is the pinout I have. want to make sure it is correct. 


 
 
 
 
  

  RTCM
  

  GPS 18x LVC
  

  

 
 
  7
  PTT Out
  <--
  Pulse Output
  1
  Yellow
 
 
  13
  5Vdc
  -->
  Vin
  2
  Red
 
 
  8
  Ground
  

  Ground
  3
  Black
 
 
  6
  Rx Data
  <--
  TX Data
  4
  White
 
 
  8
  Ground
  

  Ground
  5
  Black
 
 
  14
  TX Data
  -->
  Rx Data
  6
  Red
 
Thanks,
Mike - KD5DFB


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