# Base/Rover RTK postcard **URL:** \ **Category:** GPS/GNSS\ **Created:** [February 8, 2025, 12:22am UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265 "2025-02-08T00:22:45Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![AORPLS](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/aorpls/32/7355_2.png) [@AORPLS](https://community.sparkfun.com/u/AORPLS)\ **Post date:** [February 8, 2025, 12:22am UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265/1 "2025-02-08T00:22:45Z")
I have enabled TCP server and TCP client on each rtk postcard, started base cast, connected rover and have IP and I cannot get better than DGPS shouldn’t I get a fix position similar to dialing into a NTRIP service? ---
**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\ **Post date:** [February 8, 2025, 12:40am UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265/2 "2025-02-08T00:40:18Z")
Are they outside with a clear view of the sky? ---
**Author:** ![AORPLS](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/aorpls/32/7355_2.png) [@AORPLS](https://community.sparkfun.com/u/AORPLS)\ **Post date:** [February 8, 2025, 12:44am UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265/3 "2025-02-08T00:44:31Z")
yes my rtk postcard base is getting down into .23 territory connected to an L5 antenna. my rtk postcard rover shows connected to the rtk caster and has an IP. and the base is casting. Not sure why it’s not dropping into RTK mode. for reference using NTRIP from state service on my phone I have had my rover work flawlessly so I am now trying to figure out how to make a base. I plan to use Loraserial once I get JST 6 to 4 cables (ordered today). But figured I would test with short range wifi. I have both sitting next to each other in my yard. ---
**Author:** ![AORPLS](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/aorpls/32/7355_2.png) [@AORPLS](https://community.sparkfun.com/u/AORPLS)\ **Post date:** [February 8, 2025, 4:09pm UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265/4 "2025-02-08T16:09:45Z")
![20250208_080207(0)](https://canada1.discourse-cdn.com/sparkfun/original/2X/b/b7befdb154bbdecdf08c9ec40985b32da66ce8f8.jpeg) ![20250208_080232](https://canada1.discourse-cdn.com/sparkfun/original/2X/1/1aba8b7793095b2d2c9ee6a5c3933e0975a8cc62.jpeg) ---
**Author:** ![AORPLS](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/aorpls/32/7355_2.png) [@AORPLS](https://community.sparkfun.com/u/AORPLS)\ **Post date:** [February 8, 2025, 4:11pm UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265/5 "2025-02-08T16:11:03Z")
Shouldn’t I be seeing the rover drop below 2m and down to mm like I do with a ntrip service? Maybe I’m missing one setting on basecast-rover setup. Hopefully once I get Lora serial jst cable I can just plug in and go. ---
**Author:** ![jeffersonkim](https://avatars.discourse-cdn.com/v4/letter/j/a8b319/32.png) [@jeffersonkim](https://community.sparkfun.com/u/jeffersonkim)\ **Post date:** [February 13, 2025, 3:48pm UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265/6 "2025-02-13T15:48:16Z")
> [@Problems getting a green dot in SW Maps](https://community.sparkfun.com/t/problems-getting-a-green-dot-in-sw-maps/63203/15): > > Hi @bushman_K, we perhaps don’t fully understand. We are uploading from the Reference Station up to RTK2go, and then from RTK2go to the SW Maps devices. Our regular RTK Expresses get the green dot fine, while the postcards are not. If we are getting the green dot and correction data for the RTK Expresses, would that mean all the data from RTK2go should also be sufficient for the Postcards? @AORPLS We are having similar issues using broadcasted NTRIP data from RTK2Go in terms of getting mm accuracy like we do from the RTK Expresses we have. Any luck? ---
**Author:** ![AORPLS](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/aorpls/32/7355_2.png) [@AORPLS](https://community.sparkfun.com/u/AORPLS)\ **Post date:** [February 13, 2025, 6:24pm UTC](https://community.sparkfun.com/t/base-rover-rtk-postcard/63265/7 "2025-02-13T18:24:34Z")
One thing I tweaked was the rtcm messages. I would think the default would be good to go. I am going to check again once I get LorA cables later this week. I was unable to do a static to opus on first try so hoping message tweaks help that too. From reading my states real time network they send rcm 3.x extended so I’m not sure what message times need turned on in base mode. However I found another post where there was a list but haven’t had a chance to try.