Motorola DGR 6175 MOTOTRBO Repeater

Motorola DGR 6175 MOTOTRBO Repeater with Cable & Manual

The Motorola DGR 6175 is a digital and analog two-way radio repeater engineered for continuous-duty voice and data infrastructure. Operating under the ETSI DMR Tier II standard (ETSI-TS102 361-1), this unit utilizes 2-slot Time-Division Multiple-Access (TDMA) technology to double user capacity on a single licensed 12.5 kHz channel without requiring additional frequency allocations or combiner hardware.

Comes with an integrated switching power supply with automatic DC battery backup failover, the chassis sustains a 100% continuous duty cycle at full rated RF output (up to 45 W in VHF and 40 W in UHF). This specific package includes the primary repeater chassis, factory power/interface cabling, and the operator/installation manual.

Model Details

• Primary Series / Model: Motorola MOTOTRBO DGR 6175 (Latin America / Caribbean / International Equivalent to North American XPR 8300)
• Representative UHF Band 1 Model Number: LAM27QPR9JA7AN / M27QPR9JA7AN (403–470 MHz, 25–40 W, Rack Mount, Non-GPS)
• Representative VHF Model Number: M27JQR9JA7AN (136–174 MHz, 25–45 W, Rack Mount)
• Super TANAPA / Assembly MPN: PMUE2390CALAA (UHF 403–470 MHz High-Power Assembly)
• OEM Publication / Manual Reference Numbers: 6880309U03 (Installation Guide), 6880309T91-A (Service Manual), 6881095C99 (RF Safety Booklet)
• Compatible Programming & Rear Interface Cables: PMKN4010_ (Rear Accessory to USB Programming Cable), PMKN4016_ (Rear Accessory Programming & Test Cable)

Technical Specifications

Compatible Equipments

• MOTOTRBO Subscriber Portables: DGP 4150, DGP 4150+, DGP 6150, DGP 6150+, XPR 6350, XPR 6550, XPR 7350e, XPR 7550e, DEP 450, DGP 8550e.
• MOTOTRBO Subscriber Mobiles: DGM 4100, DGM 4100+, DGM 6100, DGM 6100+, DGM 8500, XPR 4350, XPR 4550, XPR 5550e.
• Legacy Analog Subscribers: Motorola PRO5150, PRO7150, EM200, EM400, Radius GM300, and standard marine VHF/UHF FM transceivers (via Dynamic Mixed Mode).
• Linked Repeater Infrastructure: Motorola DGR 6175, XPR 8300, XPR 8380, XPR 8400, and MTR 3000 (via IP Site Connect over Ethernet).
• External Tone & Trunking Controllers: Zetron Model 38/48, CAT-200B, and Motorola R56 grounding/surge suppression hardware.

Part Number Cross-References

• North American Chassis Equivalent: Motorola XPR 8300 (shares identical RF boards, internal power supply, and 3U 19-inch mechanical chassis).
• Display-Equipped Sibling Model: Motorola XPR 8400 (adds front-panel alphanumeric LCD and navigation buttons to the same RF platform).
• VHF Low-Power PA Board: 8471495L01 / 8471495L04 (1–25 W).
• VHF High-Power PA Board: 8478023A12 / 8478023A17 (25–45 W).
• UHF Band 1 High-Power PA Board: 8486777Z12 / 8486777Z15 (25–40 W).
• UHF Band 2 High-Power PA Board: 8471696M01 / 8471696M02 (1–40 W).

Frequently Asked Questions

What is the difference between the Motorola DGR 6175 and the XPR 8300?

The Motorola DGR 6175 and XPR 8300 are electrically and mechanically identical 3U rack-mount MOTOTRBO repeaters. The DGR 6175 model designation is assigned to Latin America, Caribbean, and international markets, whereas the XPR 8300 designation is used for North America. Both share the same internal RF transceivers, 100% continuous duty cycle ratings, and MOTOTRBO CPS programming architecture.

Can the Motorola DGR 6175 operate in both analog and digital modes simultaneously?

Yes. When configured in Dynamic Mixed Mode, the DGR 6175 automatically switches between analog FM (12.5 kHz or 25 kHz) and digital DMR TDMA mode depending on the incoming transmission. In digital mode, it supports two simultaneous talk paths on a single 12.5 kHz channel; in analog mode, it operates as a single-channel FM repeater.

Does the Motorola DGR 6175 include an internal duplexer?

No. The DGR 6175 does not house an internal duplexer. It provides separate transmit (TX) and receive (RX) RF connectors on the rear chassis. To operate with a single transmit/receive antenna, you must connect an external frequency-matched cavity duplexer using low-loss double-shielded coaxial jumpers.

How does the automatic battery backup work on the DGR 6175?

The repeater features an integrated 100–240 VAC switching power supply alongside a rear 10.8–14.4 VDC negative-ground terminal. If AC mains power fails, the internal power distribution circuit seamlessly transfers the load to the connected 12 VDC battery bank without dropping active calls or rebooting the controller.

What software and cable are required to program the Motorola DGR 6175?

The DGR 6175 is programmed using Motorola MOTOTRBO CPS (Customer Programming Software) on a Windows PC. You can connect directly to the front-panel USB Type-B port using a standard shielded USB A-to-B cable, or interface through the rear 26-pin accessory port using Motorola cable PMKN4010 or PMKN4016.