LoRaWAN Coverage Test for Livestock GPS Tracking: A Practical Ranch Guide
A livestock GPS collar may report reliably near the farm office but stop updating when cattle move behind a hill. Before installing devices across an entire herd, a LoRaWAN coverage test helps identify where location messages arrive, where they are delayed and where additional infrastructure is needed.
The objective is to verify usable coverage across the areas animals actually occupy. A single long-distance transmission does not establish reliable service throughout a pasture.
This guide outlines a field-testing method for ranch owners, integrators and livestock tracking product developers. The numerical examples are illustrative calculations, not measured performance claims for a Jinshengchang product.
1. Define What the Ranch Needs to Receive
Start with the operational requirement rather than an advertised transmission distance.
Document the number of animals, normal reporting interval, acceptable time without an update, priority alarm types and areas where missing data would create a serious operational problem.
A general herd-location service and a boundary-monitoring service may need different update schedules. Define requirements for each.
Also distinguish a platform geofence from an animal-control system. A platform can evaluate received coordinates and generate alerts. Any collar that must respond locally to a boundary needs separately verified onboard positioning, boundary logic and animal-control functions.
For an overview of the deployment components, see our LoRaWAN cattle tracking system.
2. Test the Complete Data Path
A missing map update can originate in several places:
- The GNSS receiver did not obtain a valid position.
- The collar generated a message but the radio link failed.
- The gateway received the message but its internet backhaul failed.
- The network server accepted the message but application processing failed.
- The application displayed an old position as if it were current.
Keep records at the device, gateway, network server and application wherever practical.
Use separate timestamps for position acquisition, device transmission and application receipt. Synchronize clocks or document their offsets.
This makes it possible to distinguish poor satellite reception from poor LoRaWAN reception and delayed server delivery.
3. Record More Than RSSI
RSSI describes received signal power, typically in dBm. SNR describes the signal level relative to noise, in dB. Both help assess the radio link, but neither replaces a delivery test.
LoRa can receive some signals below the noise floor, so a negative SNR alone does not mean a message has failed. The usable limit depends on the radio configuration.
For each test point, record:
| Measurement | What it helps establish |
|---|---|
| Unique transmitted message count | The denominator for delivery calculations |
| Unique received message count | How many messages reached the selected observation point |
| RSSI and SNR by receiving gateway | How reception changes across the ranch |
| Spreading factor, bandwidth and transmit power | Whether test conditions are comparable |
| Position-fix status and acquisition time | Whether the tracker can obtain usable coordinates |
| Position and receipt timestamps | Whether displayed locations are fresh |
| Longest gap between valid updates | How long the operator loses visibility |
| Gateway and backhaul status | Whether failures originate beyond the radio link |
Gateway logs describe received packets. They cannot reveal the signal quality of packets that never arrived.
4. Calculate Delivery Rate Correctly
Define the observation point before calculating a delivery rate.
For example:
Application delivery rate = unique test messages received by the application ÷ unique test messages transmitted by the device × 100%.
If a collar transmits 120 unique messages and the application receives 114, the application delivery rate is 95%.
Count a message once even if two gateways receive it. Log retransmissions separately, and use a sequence identifier that remains interpretable across restarts and rejoins.
Do not automatically equate scheduled reports with transmitted messages. Firmware may skip a report after a failed position fix or other device-side event.
Maintain a second measure for operational visibility:
Fresh-location completion rate = scheduled reporting opportunities producing an application-visible valid location within the agreed age limit ÷ scheduled reporting opportunities × 100%.
The first measure helps diagnose transport. The second evaluates whether the ranch receives the location information it needs.
5. Test at the Collar’s Actual Height and Orientation
A tracker held above a person’s head does not reproduce a collar worn by a grazing animal.
Use the intended enclosure, antenna, strap and mounting arrangement. Begin with a fixture at realistic collar height, then validate representative animal-worn operation under appropriate handling procedures.
Include grazing, walking, resting and different body orientations. The animal’s body and changes in antenna orientation can alter the radio path.
Mark test zones around:
- Water points and feeding areas.
- Gates and handling yards.
- Low ground and valleys.
- Tree cover and shelter areas.
- Boundary sections.
- Areas behind ridges or buildings.
A useful test map shows both successful receptions and known test locations where messages were transmitted but not received.
6. Compare Gateway Positions Under Controlled Conditions
Test candidate gateway locations using a documented antenna height, cable length, antenna type and power arrangement.
Change one major variable at a time. If the gateway position, antenna and device data rate all change together, the reason for an improvement becomes difficult to identify.
An SG50 solar LoRaWAN gateway is one option to evaluate for sites requiring solar power and cellular backhaul. Confirm the exact regional configuration, installation requirements and server compatibility for the project.
Where terrain creates persistent blind areas, compare relocating the first gateway with adding another gateway. Verify coverage overlap by observing which gateways receive the same messages.
7. Check Herd Load and Data Freshness
A test with one collar does not establish performance for the full herd.
For illustration, 500 collars reporting every 15 minutes generate 48,000 original application messages per day:
500 × 96 = 48,000.
At five-minute reporting, the total becomes 144,000 per day. These totals exclude joins, retries and other traffic.
Message count alone does not establish network capacity. Packet airtime, payload length, channel use, data rates, transmission timing and downlink activity also matter.
Use representative traffic and stagger routine transmissions. Evaluate plausible bursts, such as multiple collars generating an event at a similar time, within the applicable regional radio constraints.
Measure data freshness as well. A system can eventually deliver most messages while still leaving the operator with outdated positions.
8. Set Acceptance Criteria Before the Pilot
Agree on acceptance criteria before collecting results.
The following is a proposed reporting structure, not a universal LoRaWAN performance standard:
| Test area | Required evidence | Acceptance decision |
|---|---|---|
| Routine grazing zones | Delivery and fresh-location rates by zone | Compare with the agreed tracking requirement |
| Boundary and gate zones | Update gaps and event-to-notification delay | Assess against the required response time |
| Backhaul interruption | Offline behavior and recovery records | Verify the configured storage and retry behavior |
| Power interruption | Restart, rejoin and reporting recovery | Confirm practical restoration time |
| Representative herd load | Delivery, delay and gateway behavior under load | Determine whether gateway quantity is sufficient |
| Energy use | Device current or energy logs under the chosen settings | Evaluate the battery-life implications |
Report sample counts, test duration, firmware version and environmental conditions alongside every result.
An average for the whole ranch can conceal a poorly covered valley or boundary. Review each critical zone separately.
9. Turn the Pilot into a Deployment Plan
The final deliverable should include a coverage map, gateway installation details, device configuration, per-zone results, unresolved gaps and recommended changes.
Retest any critical area affected by a gateway relocation, antenna change or firmware revision.
Shenzhen Jinshengchang Technology Co., Ltd. provides livestock tracking devices, gateway integration, the lora8 platform and OEM/ODM development. Our custom LoRaWAN PCB development services can support project-specific hardware and firmware requirements, subject to configuration review.
To discuss a ranch deployment, prepare a pasture map, approximate herd size, destination country, reporting requirements and available power and internet connections. These inputs provide a practical starting point for planning a pilot and selecting gateway locations.
Frequently Asked Questions
Can one gateway cover an entire ranch?
It may be sufficient for some sites, but ranch area alone cannot determine gateway quantity. Terrain, antenna installation, animal movement and the required reliability must be evaluated through field testing.
Does a strong RSSI prove that livestock tracking is reliable?
No. RSSI describes packets that were received. It does not establish how many messages were lost, whether the coordinates were valid or whether the application displayed them promptly.
Does adding a gateway improve GPS accuracy?
Adding a gateway can improve message reception where radio coverage is weak. GNSS position accuracy must be evaluated separately.
Should every location report request an acknowledgment?
The acknowledgment strategy should be chosen for the application. Confirming every routine report adds downlink demand and can increase device activity. Test the selected strategy under representative load.