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GPS modification RT3s - final hardware, final instructions
Posted: Mon Feb 05, 2024 5:52 pm
by oe7abh
hello,
I have two Retevis RT3s. One with and one without GPS.
Can you use it to convert both devices (with/without GPS)?
Is this the best final hardware for the GPS modification:
https://pt.aliexpress.com/item/10050017 ... pt=glo2bra
And is this the correct instruction ?
https://drive.google.com/file/d/1VrMJm0 ... KJqII/view
Thank you, Alfred OE7ABH
http://tyrofly.at/panos/msgz/
Re: FYI - GPS
Posted: Mon Feb 05, 2024 6:51 pm
by CU7AAZ
Hi Alfred
"And is this the correct instruction ?"
https://drive.google.com/file/d/1VrMJm0 ... KJqII/view
For the mod I made, yes, these are the correct instructions.
I just made one change, I replaced the backup battery with a slightly larger one with more autonomy.
With this mod, I am 100% satisfied.
However, there are other mods, also interesting, posted by some colleagues
Nice View!
73s
CU7AAZ
Re: FYI - GPS
Posted: Mon Feb 05, 2024 7:24 pm
by CU7AAZ
GPS module battery replacement
https://drive.google.com/file/d/17j7OlK ... sp=sharing
I hope it helps!
73s
CU7AAZ
Re: FYI - GPS
Posted: Mon Feb 05, 2024 9:26 pm
by oe7abh
Hello Duarte,
thank you very much for your great information. Thanks also for your battery info.
I will try to improve my GPS!
Greetings from Tyrol, Alfred OE7ABH
Re: FYI - GPS
Posted: Tue Feb 06, 2024 7:41 am
by oe7abh
EU1AEQ wrote: ↑Sun Nov 19, 2023 7:51 am
I have 2 radio stations: RT3S with GPS and 380UV without GPS. In RT3S I replaced the antenna, the amplifier, replaced the module with ATGM336H-5N-71. There are no special changes in the speed of satellite detection. It works very slowly. Finds up to about 9 satellites. In 380UV I put an external module with an active antenna. Satellites are detected in a minute. Shows more than 20 satellites. In both cases, the antenna is on the side. Something is wrong in the circuit diagram of models with GPS.
Is there a difference in the circuit board layout of the RTS3 with/without GPS or does the GPS modification work the same way on both radios?
Many thanks to all contributors who made this modification possible!
73 Alfred OE7ABH
Re: FYI - GPS
Posted: Wed Feb 07, 2024 2:06 pm
by EA5JOQ
CU7AAZ wrote: ↑Mon Feb 05, 2024 6:51 pm
Hi Alfred
"And is this the correct instruction ?"
https://drive.google.com/file/d/1VrMJm0 ... KJqII/view
For the mod I made, yes, these are the correct instructions.
I just made one change, I replaced the backup battery with a slightly larger one with more autonomy.
With this mod, I am 100% satisfied.
However, there are other mods, also interesting, posted by some colleagues
Nice View!
73s
CU7AAZ
And you can close it correctly, I am trying to close it but I can't...
Re: FYI - GPS
Posted: Wed Feb 07, 2024 10:19 pm
by CU7AAZ
EA5JOQ wrote: ↑Wed Feb 07, 2024 2:06 pm
CU7AAZ wrote: ↑Mon Feb 05, 2024 6:51 pm
Hi Alfred
"And is this the correct instruction ?"
https://drive.google.com/file/d/1VrMJm0 ... KJqII/view
For the mod I made, yes, these are the correct instructions.
I just made one change, I replaced the backup battery with a slightly larger one with more autonomy.
With this mod, I am 100% satisfied.
However, there are other mods, also interesting, posted by some colleagues
Nice View!
73s
CU7AAZ
And you can close it correctly, I am trying to close it but I can't...
Hi
Yes
As I explain in the tutorial, it is important to remove as much plastic as possible. Before a hole is left open.
The antenna and module must be as low as possible.
Good Luck!
73s
CU7AAZ
Re: FYI - GPS
Posted: Thu Feb 08, 2024 1:46 pm
by EA5JOQ
CU7AAZ wrote: ↑Wed Feb 07, 2024 10:19 pm
EA5JOQ wrote: ↑Wed Feb 07, 2024 2:06 pm
CU7AAZ wrote: ↑Mon Feb 05, 2024 6:51 pm
Hi Alfred
"And is this the correct instruction ?"
https://drive.google.com/file/d/1VrMJm0 ... KJqII/view
For the mod I made, yes, these are the correct instructions.
I just made one change, I replaced the backup battery with a slightly larger one with more autonomy.
With this mod, I am 100% satisfied.
However, there are other mods, also interesting, posted by some colleagues
Nice View!
73s
CU7AAZ
And you can close it correctly, I am trying to close it but I can't...
Hi
Yes
As I explain in the tutorial, it is important to remove as much plastic as possible. Before a hole is left open.
The antenna and module must be as low as possible.
Good Luck!
73s
CU7AAZ
With a Dremel I supone right?
Re: FYI - GPS
Posted: Thu Feb 08, 2024 9:29 pm
by CU7AAZ
EA5JOQ wrote: ↑Thu Feb 08, 2024 1:46 pm
CU7AAZ wrote: ↑Wed Feb 07, 2024 10:19 pm
EA5JOQ wrote: ↑Wed Feb 07, 2024 2:06 pm
And you can close it correctly, I am trying to close it but I can't...
Hi
Yes
As I explain in the tutorial, it is important to remove as much plastic as possible. Before a hole is left open.
The antenna and module must be as low as possible.
Good Luck!
73s
CU7AAZ
With a Dremel I supone right?
Yes, with a Dremel.
73s
Comprehensive and clear manual
Posted: Tue Feb 13, 2024 10:31 am
by EA5JOQ
New manual
Hi everyone, EA5JOP and me (EA5JOQ) have written a comprehensive manual in both English and Spanish, step by step, covering the entire process for performing the GPS mod. Based on ''CU7AAZ GPS mod 2''.
https://ea5joq.es/files/rt3s_gps_mod.pdf
https://ea5jop.es/files/rt3s_gps_mod.pdf
If there's anything wrong, you can point it out, and I'll change it. Moreover, the PDF will be updated if anyone encounters any other issues.
73s
