BM News


Talk Groups on Time Slot 1

  • 748 - Uruguay national (permanent on most repeaters)

  • 907-JOTA/JOTI (call channel)

  • 9071-JOTA/JOTI (QSO channel)

  • The activation of the JOTA channels is upon request to the repeater's Sysop

  • All BrandMeister talk groups can be activated on any repeater in Uruguay. International talk groups, national and regional talk groups of countries other than Uruguay should be used on time slot 1. Talk group 748 is permanently active on most CX repeaters. It is meant as a calling channel, for establishing the initial contact and facilitate QSY to a regional or user activated talk group (CXUAs). Please remember that QSOs on TG 748 block time slot 1 on almost all CX repeaters.

Talk Groups on Time Slot 2

User-activated (Tactical) Uruguay Talk Groups on Time Slot 2

User-activated talk groups, also known as "tactical", "dynamic" or "on demand" talk groups, are activated by pressing PTT once. The talk group will stay active (on the repeater it has been activated) for 10 minutes after the last activation. In Uruguay users "meet" on national or regional talk groups (e.g., TG 748,TS1) and will then agree to switch to one of the user-activated talk groups (TGs 74830, 74840, 74850, 74860). Since user-activated talk groups are used on time slot 2, this operating procedure frees up resources on time slot 1 for other users.

Talkgroup Timeslot Description
74830 2 CXUA 1
74840 2 CXUA 2
74850 2 CXUA 3
74860 2 CXUA 4

Dashboard and Status pages




Positioning on Motorola CPS:

- General:

- GPS: On

- Network:

- CAI Network: 12

- ARS Radio ID: XXX999 , XXX being the first three digits of any Master Server.
This server does not necessarily need to be the Master Server to which the repeater is connected

- preferred channel settings:

- ARS: On System/Site Change

- IP Site Connect: On

- GPS Revert: Selected

- Data Call Confirmed: Off (unchecked)


  • 9990 Parrot (Private call and TS2)

Useful Links

Repeaters(we are working on this list)

Callsign ID Tx freq. Rx freq. Permanent TGs S1 Permanent TGs S2 Location Remarks

CX1DXX 748011 432.500 437.500 748,74800 Canelones
CX2CXX 748001 147.360 147.960 748,74800 Montevideo Temporarily down
CX8CXX Montevideo
CX4AXX Montevideo
CX9BXX Montevideo
CX4RXX Maldonado
CX8DXX Canelones
CX1AXX Montevideo
CX9SXX Minas
CX9DXX Canelones
CX7BXX Montevideo
CX2TXX Rocha
CX8RXX Maldonado Not yet in service
CX9TXX Rocha
CX4UXX Treinta y Tres
CX7DXX Montevideo

DMO Gateways (high power hotspots)

Callsign ID Frequency Location Remarks
CX8BIT 7480021 147.990 Montevideo
CX2TG 147.850 Rocha
CX2UI 147.875 Treinta y Tres
CX3AF 433.050 Paysandú
CX1LA Casupá

These are unconfirmed frequencies - More Gateways under construction!

Analog gateway to DMR, TG 748

There is an analog (fm) gateway/access to DMR TG 748 in Montevideo on 147.870 Mhz.(CTCSS 82.5) It is located in the Parque Rodó neighborhood. Welcome to use it.

Digital contacts list

For the moment, this page contains lists only for the Anytone AT-D868UV and AT-D878UV radios. Guillermo, CX8BIT, will continue to add lists for other radios.

Color codes used in Uruguay to build repeaters and DMO gateways

Signal Color Motorola GM300 pin DB9 pin on Scott Zimmermann's STM32_DVM_PiHat board Yaesu FT-7900 Notes
Tx audio red 5 2 1 Data input to Tx
ground orange 7 8 2
Rx audio yellow 11 6 4 Data output from Rx
COS/SQL green 8 X 6 Programmable on GM300, active high on Yaesu FT-7900
PTT brown 3 5 3 Tx on when this pin is grounded
RSSI black 15 4 X GM350, not used on GM300 or FT-7900
12V out white

13 9 (12V in) X On GM300 and similar radios, pin 13 connects to J8-5 which supplies +12V switched power from the radio on/off switch.This connection can deliver 500 mA current, fused by the 2A internal radio fuse. Do not forget: jumper 551 on A, jumper 601 on B. (bottom side of radio). This 601 jumper activates/deactivates the audio low pass filter.