Code: Select all
IO8
General-purpose GPIO, the default is the mode
configuration. When high level or floating, it is
BDS+GPS; when low level, it is GPS+GLONASS.Search found 43 matches
- Fri Feb 02, 2024 8:41 am
- Forum: TYT MD2017 / Retevis RT-82
- Topic: TYT MD2017 / Retevis RT-82 Public Alpha version
- Replies: 76
- Views: 7043
Re: TYT MD2017 / Retevis RT-82 Public Alpha version
according to gp-02 datasheet you need connect io8 pin to ground to switch module to gps+glonass mode .
- Mon Jan 29, 2024 4:01 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 10654
Re: GPS (GP-02) kit module fitted in a GD-77
Soft wire is center conductor of coax cable (~4.2cm) and works as active part of antenna, another part going to the left is shield part of cable and works as ground plane. You can take a look here for better understanding : https://www.electroschematics.com/24ghz ... l-antenna/
- Mon Jan 29, 2024 1:18 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 10654
Re: GPS (GP-02) kit module fitted in a GD-77
gps enable from cpu goes to power switch and then to gps module , just follow red wire from cpu to mt9700 and then to gps module. MT9700 pdf you can find on google.
- Mon Jan 29, 2024 12:52 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 10654
Re: GPS (GP-02) kit module fitted in a GD-77
As power switch i've used MT9700
- Tue Jan 23, 2024 8:57 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 10654
Re: GPS (GP-02) kit module fitted in a GD-77
About connections to cpu : * GPS functionality has been added to the GD-77, DM-1801 and DM-1801 firmwares None of these types of radios was originally available with GPS, so operators will need to fit a GPS module inside their radio, and connect the data and power control connections directly to the...
- Fri Dec 29, 2023 3:38 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: Aprs tx sound
- Replies: 0
- Views: 1091
Aprs tx sound
Any chance to turn it off ? Something like "no beep" in cps ?
- Fri Nov 10, 2023 10:40 pm
- Forum: TYT MD-9600 / Retevis RT-90
- Topic: Maximum Power on TYT-MD-9600
- Replies: 18
- Views: 5090
Re: Maximum Power on TYT-MD-9600
Try long press
- Fri Nov 10, 2023 9:57 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 10654
Re: GPS (GP-02) kit module fitted in a GD-77
I'm thinking to use mp62055 https://www.monolithicpower.com/en/mp62055.html
btw i've installed sl871-s gps module in dm1801 , will post photos later
btw i've installed sl871-s gps module in dm1801 , will post photos later
- Fri Nov 10, 2023 4:46 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 10654
Re: GPS (GP-02) kit module fitted in a GD-77
@f1rmb I see you've tried to use N/F pin of gp-02 module, but ended with mosfet for vcc. Can i ask why ?
- Wed Nov 08, 2023 7:25 pm
- Forum: GD-77 / DM-1801 / RD-5R / GD-77S
- Topic: GPS (GP-02) kit module fitted in a GD-77
- Replies: 53
- Views: 10654
Re: GPS (GP-02) kit module fitted in a GD-77
How radio know that GPS module is installed ? Without module in GPS menu you cant turn gps power to on and if it is powered off how radio can know that its there ? Or in any case radio is trying to power on module and listen for nmea messages and changes menu to on if messages is heard ?