> For the complete documentation index, see [llms.txt](https://docs.gxc.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gxc.io/hw/5g/5g-gnb/g228-n48-n77-n78/g228-n48-n77-n78-specification-sheet.md).

# G228-n48/n77/n78 Specification Sheet

Last Updated: 2026-02-23

<h4 align="center">G228 Outdoor gNB</h4>

<figure><img src="https://4084968256-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FgSxa0NIdBp5aDw7Lf2N9%2Fuploads%2FvYnwhMpRkd2RORJ5FyPi%2FG228-only-logo.jpg?alt=media&amp;token=cbe69a6b-0b15-4783-961a-24bbbab27930" alt="" width="375"><figcaption></figcaption></figure>

The G228 is an advanced outdoor integrated base station (gNB) for 5G applications, with:

* 2T2R configuration with 250 mW output per antenna port
* IP65 outdoor-rated design
* Compliance with 5G NR TDD 3GPP R15/16-partial standards
* Compatible with n48, n77, and n78 frequency bands
* 1 Component Carrier (1CC) supporting up to 100 MHz of bandwidth

### Technology

<table><thead><tr><th width="250">Parameter</th><th>Specification</th></tr></thead><tbody><tr><td>Standard</td><td>5G NR (3GPP R15 and R16-partial compliance)</td></tr><tr><td>Duplex Mode</td><td>TDD</td></tr><tr><td>Frequency Band</td><td>n48 (3.55 to 3.70) GHz FCC/OnGo<br>n77 (3.7 to 4.0) GHz FCC<br>n78 (3.8 to 4.2) GHz CE<br>n79 (4.4 to 5.0) GHz</td></tr><tr><td>Channel Bandwidth</td><td>n48: 1CC 20/30/40 MHz<br>n77: 1CC 40/50/60/70/80/90/100 MHz<br>n78: 1CC 20/30/40/50/60/70/80/90/100 MHz<br>n79: 1CC 100MHz</td></tr><tr><td>Multiplexing</td><td>2x2 MIMO (DL/UL)</td></tr><tr><td>Synchronization Options</td><td>GPS/GLONASS/Galileo/PTP 1588V2</td></tr></tbody></table>

### Interfaces

<table><thead><tr><th width="250">Parameter</th><th>Specification</th></tr></thead><tbody><tr><td>Ports</td><td>1 x 1Gb SFP (Data/Backhaul)<br>1 x 1GbE RJ45 (Data/Backhaul)<br>1 x 1GbE RJ45 (Console)</td></tr><tr><td>Power</td><td>DC 48V/POE++ (802.3at/bt)</td></tr><tr><td>GPS</td><td>1 x SMA (F) Connector</td></tr><tr><td>Antenna</td><td><p>2x2 internal directional</p><p>Peak Gain: n48 10.5 dBi</p><p>                   n78 11 dBi</p><p>                   n77/n79 12 dBi</p><p></p><p>2 x SMA - external</p></td></tr><tr><td>LED Indicators</td><td>4 x Status LED - Power/Service/Status/GPS</td></tr></tbody></table>

### Link Budget

<table><thead><tr><th width="250">Parameter</th><th>Specification</th></tr></thead><tbody><tr><td>Modulation</td><td>UL/DL: 256 QAM</td></tr><tr><td>Max. Transmit Power</td><td>250 mW (24 dBm) per RF port</td></tr></tbody></table>

### Compliance

<table><thead><tr><th width="250">Parameter</th><th>Specification</th></tr></thead><tbody><tr><td>3GPP</td><td>5G NR TDD R15/R16-partial compliant</td></tr></tbody></table>

### Physical

<table><thead><tr><th width="250">Parameter</th><th>Specification</th></tr></thead><tbody><tr><td>Ingress Protection Rating</td><td>IP65</td></tr><tr><td>Operating Temperature</td><td>-22°F to 131°F  (-30℃ ~ 55℃)</td></tr><tr><td>Weight</td><td>&#x3C; 6.6 lbs. (3kgs)</td></tr><tr><td>Dimensions (H x W x D)</td><td>7.9 x 7.9 x 3.3 in (200 x 200 x 85 mm)</td></tr><tr><td>Installation</td><td>Wall or Pole mount</td></tr></tbody></table>

### Global Part Numbers

<table><thead><tr><th width="192.40008544921875">Item</th><th>Description</th></tr></thead><tbody><tr><td>GXC-AP0-228</td><td>G228 Outdoor gNB AP – n48/77/78 2x2 MIMO 24dBm</td></tr><tr><td>GXC-AP0-228-n79</td><td>G228n79 Outdoor gNB AP - n79 2x2 MIMO 24dBm</td></tr></tbody></table>

* Specifications and ID are subject to change without notice.


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