RTK without subscription fees

Yes, RTK can be used without a subscription fee. This is possible in two cases: if you use your own base station or if the receiver can connect to open free NTRIP servers. Many modern devices support this mode of operation.

Why a Subscription is Usually Needed

Most commercial RTK networks operate on a subscription model. Their base stations are installed throughout the country and require maintenance, internet, and monitoring. Operators charge a subscription fee for this. But if you create the correction source yourself or have access to open servers, you don't need to pay anything.

How RTK Works Without a Subscription Using the Nav Agro RTK Antenna

The Nav Agro RTK Antenna supports two modes of operation. It can work as a rover and receive corrections via the internet, LoRa radio, or cable. Or it can be a base station transmitting corrections to other receivers. This is precisely what allows it to be integrated into a system where no subscription is needed.

When operating in base mode, the antenna transmits corrections via LoRa, Bluetooth, or a wired interface. This allows you to create your own RTK network on the farm. If you have two or more tractors, they can be connected to a single base. In this format, there are no monthly costs, and the operation remains fully autonomous.

Main Characteristics of Nav Agro RTK

• Number of receiving channels: 198

• Supports GPS, Galileo, BeiDou

• Accuracy in RTK mode: approx. 2 cm

• Time To First Fix: approx. 60 seconds

• Update rate: up to 10 Hz

• Supports RS 232 and Bluetooth interfaces

• Operating temperature range: from -20 to +70 degrees Celsius

• Power supply: 5 to 16 volts

These characteristics allow the antenna to be used in both geodesy and agri-guidance. It operates stably in various conditions and maintains signal well in weak coverage areas.

Advantages of Operating Without a Subscription

1. Complete Autonomy. You are not dependent on the operation of external servers.

2. Cost Savings. You only pay for the equipment, with no regular monthly fees.

3. Flexibility. Corrections can be transmitted via various channels, even without a mobile internet connection.

4. Compatibility. The device supports standard protocols and works with modern navigation systems.

What to Pay Attention To

Your own base station requires correct installation. It's important to choose the right location, ensure power supply, and maintain a stable connection with the rovers. The radio range also depends on the terrain. In hilly areas, the range may decrease. However, in most cases, this is sufficient for agricultural work.

Conclusion

RTK without a subscription is entirely feasible for those who are willing to set up their own base station or use open NTRIP servers. The Nav Agro RTK Antenna is well-suited for this exact scenario. It can function as both a base and a rover, works with various transmission channels, and provides accuracy on par with professional systems. It's a good option for farmers and surveyors who want to save money and remain independent of subscriptions.