What is the SkyStation915POE?
The SkyStation915POE is an all-weather, network-ready ISM Band Ground Radio System (GRS) designed for permanent installation on a tower. It includes an integrated POE power supply and pole mounting kit, and integrates seamlessly with uAvionix SkyLine Cloud Managed BVLOS Service, including automatic registration.
Can you help me understand the GRS link switching and roaming logic?
The GRS (Ground Radio Station) uses SkyDM (SkyLine DataMux) to manage both link switching (between mediums/paths) and roaming (between multiple GRS within a medium). SkyDM is the key component that multiplexes the C2 links during a flight. Link Switching: Link Switching chooses the primary link medium/paths (e.g., LTE vs Satcom) on the ground. • Inputs: 1-second average of received user data on all links. • Scope: Evaluates and switches between different link mediums/paths (e.g., LTE vs. Satcom). • Prioritization: When the current active link becomes inactive (no data for 1 second), chooses an active link with the highest received rate (if multiple). • Evaluation cadence: Every 1 second with double-hysteresis, consistent with muLTElink. • Trigger: Switch occurs when a link is disqualified (0 user data, poor RSSI, or loss of connectivity). • Behavior: Prioritizes stability with hysteresis to avoid unnecessary flapping. Roaming (Within a Link): Roaming chooses the lead GRS within a given link when multiple GRS are available. • Scope: Roaming operates within a single link when multiple GRS are available. • Inputs: Network connectivity status, RSSI strength, and reception of ARS heartbeats. • Qualification: Each GRS is qualified using this combination of factors. • Evaluation cadence: Every 1.5 seconds. • Hysteresis: Single hysteresis applied to reduce unnecessary swaps. • Selection: Chooses the lead GRS from qualified candidates; prefers strongest RSSI if all else equal. Key Takeaway: • Primary vs. Lead distinction: Note that link switching chooses the primary link medium, while roaming chooses the lead GRS within that link.
What are the key features of the SkyStation915POE?
Key features include: Integrated ISM band (902-928 MHz) ground radio system, integrated GPS receiver, IP67-grade enclosure, dual linear coaxial antennas, pole mounting kit, automatic GRS registration with SkyLine, and Ethernet reprogramming and configuration interface.
What are the technical specifications?
Input Power: 802.3af POE 13 W Peak; Size: 122 x 82 x 55 mm; Weight: 500 grams; Operating Temp: -45 to 70°C; Band: 902-928 MHz ISM Band; Architecture: 2X MIMO Radio Diversity; Transmit Power: 1 W (4 W EIRP); Spreading: Code and Frequency; Bandwidth: 200 kHz; Sensitivity: -118 dBm; Interface: M12 X-Coded Ethernet; Protocols: HTTP, TCP; Environmental: DO-160G Temperature Cat B2.
What regulatory compliance does the SkyStation915POE have?
It complies with microLink FCC 47 CFR Part 15.247 ID: 2AFFTC2XISM. Note: This device has not been authorized by the FCC and may not be offered for sale or lease until authorization is obtained (except for U.S. Government or exported units).
What is included in the SkyStation915POE kit?
| Quantity | Part Name | Part # |
| 1 | SkyStation915POE Top Level Assembly | UAV-1005539-001 |
| 2 | LoRa Gateway Antennas | UAV-1003059-001 |
| 1 | M12 Ethernet Cable 5m | UAV-1005899-002) |
| 2 | Hose Clamps | UAV-1005632-001 |
| 1 | Mounting Arm | UAV-1005552-001 |
| 2 | Shoulder Screws | UAV-1005620-004 |
| 1 | Getting Started Card | UAV-1005282-019 |
What power supply is required for setup?
The device requires an 802.3af (802.3at Type1) POE power supply with a transmit power of Class 1, 4 W, voltage range of 37–57 V. It supports shielded Cat 3 or Cat 5 cabling with a maximum length of 100 meters.
Do I need any additional equipment before installation?
Yes, you will need a POE switch on a network with a DHCP server, a network scanning tool (e.g., Advanced IP Scanner), and access to a web browser for configuration. The Websocket URL for SkyLine POD connection is obtained from uAvionix support.
How do I physically install the SkyStation915POE?
(1) Secure the mounting bracket to a pole using the included stainless steel hose clamps. (2) Align the GRS with the mounting bracket and slide it into place over the end of the bracket. (3) Use the included mounting screw(s) to fasten the GRS to the bracket. (4) Attach the GRS antennas and tighten. The mounting bracket is angled 6° upward for optimal airborne coverage. GPS is integral, so no additional input is needed.
How do I connect the SkyStation915POE to the network?
Connect via POE using the M12 X-Coded connector. Use the provided M12 Ethernet cable to link to a POE switch. Ensure the cabling is shielded Cat 3 or Cat 5, with a maximum length of 100 meters. Refer to the M12 wiring diagram for pin assignments (e.g., pins for white/orange, orange, etc.).
What is the recommended mounting orientation?
The mounting bracket is designed with a 6° upward angle to maximize airborne coverage. Ensure the device is mounted on a pole with clear line-of-sight, and no additional GPS input is required as it is integrated.
How do I configure the SkyStation915POE?
(1) Connect to a POE switch on a DHCP network via the M12 X-Coded Ethernet port. (2) Use a network scanning tool (e.g., Advanced IP Scanner) to find the device named “SkyStation-XXXX” (XXXX matches the last four hex characters of the MAC address). (3) Navigate to the IP address in a web browser (e.g., http://192.168.1.134). (4) Update the “Websocket URL” field with the URL provided by uAvionix support. (5) Click “Save.” (6) Verify the device appears in SkyLine under Devices GRS, named by its Radio ID.
How do I find the IP address of the device?
Connect the device to a network with DHCP, then use a network scanning tool like Advanced IP Scanner to locate a device named “SkyStation-XXXX,” where XXXX corresponds to the last four hex characters of the MAC address.
Where do I get the Websocket URL for configuration?
The Websocket URL for the specific SkyLine POD is obtained from uAvionix support. Enter it in the configuration webpage and save.
How does the SkyStation915POE integrate with SkyLine?
It integrates seamlessly with automatic GRS registration. Once configured with the Websocket URL, the device will appear in SkyLine under Devices GRS for cloud-managed BVLOS operations.
What is link switching in the GRS?
Link switching, managed by SkyDM, chooses the primary link medium/path (e.g., LTE vs. Satcom) based on 1-second average received user data. It switches when the active link becomes inactive (1 second no data), prioritizing the highest received rate with double-hysteresis for stability. Triggers include 0 user data, poor RSSI, or loss of connectivity.
What is roaming within a link?
Roaming, also via SkyDM, selects the lead GRS within a single link when multiple are available. It uses network connectivity, RSSI strength, and ARS heartbeats for qualification. Evaluated every 1.5 seconds with single hysteresis, preferring the strongest RSSI among qualified candidates.
What should operators know about primary vs. lead distinction?
Link switching selects the primary link medium, while roaming selects the lead GRS within that link. This ensures stable multiplexing of C2 links during flight.
What if the device does not appear in SkyLine after configuration?
Verify the network connection, POE power, and that the correct Websocket URL was entered and saved. Check the IP address using a scanner and ensure the device is named correctly in SkyLine by its Radio ID. If issues persist, visit http://www.uavionix.com/support/.
What if the SkyStation915POE is not powering on?
Ensure it is connected to a compatible 802.3af POE switch with proper voltage (37–57 V) and cabling. Check the M12 connector wiring and cable length (max 100m). Confirm the POE source provides at least 4W.
What if there is poor signal or connectivity issues?
Check antenna attachments and orientation (6° upward). Ensure clear line-of-sight and no interference in the 902-928 MHz band. Verify GPS lock (integral to the device) and roaming/link switching logic in SkyDM.
I still have questions. Where do I go for customer support?
For additional customer support, please submit a Support Ticket to the uAvionix customer support team.
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