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4G/LTE Analog HotSpot - Transceiver 70cm UHF 500mW CE
4G/LTE Analog HotSpot - Transceiver 70cm UHF 500mW CE
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4G LTE Analog HotSpot - UHF
This compact 4G LTE Analog HotSpot combines our proven UHF hotspot platform with an integrated SIM7600G-H 4G LTE modem, making it ideal for portable, vehicle, emergency, travel, backup, or remote installations where fixed internet or local Wi-Fi is inconvenient or simply unavailable.
It is built on our 4th generation Analog HotSpot hardware platform, with improved DC filtering, cleaner RF behavior, stronger thermal performance, and a precision-machined red aluminum body with black aluminum base. This model is available only in UHF and only with a red aluminum body and black aluminum base.
The hotspot runs smoothly as an SVXLink / EchoLink analog hotspot and is designed for dependable mobile connectivity in the field. The integrated 4G modem supports up to 150 Mbps downlink and 50 Mbps uplink, which is far more than needed for stable analog hotspot traffic. It also works smoothly with alwaysconnected.eu.Currently only an SVXLink Bookworm image is available for SVXLink and EchoLink.
Why Built-In 4G Matters
- No dependency on local Wi-Fi — ideal when the hotspot is used outside the home or at remote sites.
- Integrated LTE connectivity — the SIM7600G-H keeps the unit connected without needing a separate external router.
- More than enough bandwidth — up to 150 Mbps downlink and 50 Mbps uplink is comfortably beyond what an analog hotspot needs.
- Field-friendly deployment — useful for temporary stations, mobile operation, backup links, and out-of-coverage areas.
- alwaysconnected.eu ready — works smoothly with https://alwaysconnected.eu/.
- Free Bluetooth companion app — control and manage the hotspot from Windows, macOS, Linux, Android, iPhone, or iPad using the optional SVXLink Hotspot Companion App.
4th Generation Hardware Platform
- Improved DC filtering — additional LC filtering stages reduce ripple and supply-borne noise.
- Enhanced thermal design — the aluminum body and base help dissipate heat during continuous-duty use.
- Cleaner RF chain — stable transmit behavior with excellent spectral cleanliness.
- Robust mechanical construction — compact, durable, and better suited to portable and installed use.
- Proven hotspot architecture — based on the same analog hotspot family already used for SVXLink and EchoLink deployments.
Specs at a Glance
| Feature | Specification |
|---|---|
| Frequency Range | UHF: 400–480 MHz |
| Output Power | 26–28 dBm (~300–500 mW) |
| RX Sensitivity | −109 dBm @ 12 dB SINAD |
| Bandwidth | 12.5 kHz / 25 kHz |
| Radio Module Options | SA818S or SA818PRO selectable |
| 4G LTE Modem | SIM7600G-H |
| 4G Data Rate | Up to 50 Mbps uplink and 150 Mbps downlink |
| Clock Stability | 1 ppm KDS TCXO |
| Audio Codec | Wolfson WM8960 ADC / 1 W DAC (48 kHz) |
| Bluetooth Companion App | Free download for Windows, macOS, Linux, Android, iPhone, and iPad https://svxlink-hotspot.app/ |
| Power Input | 5 V via micro-USB |
| Power Consumption | Less than 3 W idle, less than 8 W during transmission |
| Recommended Power Setup | RF.Guru CM-DM USB power filter, short 15 cm cable, and a decent USB-C power supply |
| Enclosure | Red aluminum body with black aluminum base |
| Software | SVXLink / EchoLink image preloaded |
Included with the Product
- Complete tested 4G LTE hotspot in a red aluminum body with black aluminum base
- Integrated SIM7600G-H 4G modem
- Preloaded SD card with our latest image
- Free Bluetooth companion app for Windows, macOS, Linux, Android, iPhone, and iPad
Key Features
- Integrated 4G LTE connectivity for independent deployment
- Independent TX/RX frequencies, CTCSS, and CDCSS
- Adjustable RX/TX gain levels
- Status LEDs: Signal/Tone and TX/PTT
- Ultra-stable 1 ppm TCXO
- Compact red aluminum body with black aluminum base and strong thermal behavior
- Bluetooth companion app support for Windows, macOS, Linux, Android, iPhone, and iPad
- Choice of SA818S or SA818PRO module depending on whether you prefer audio-filter bypass or firmware-upgradable operation
Power Supply and Filtering
The 4G LTE Analog HotSpot is powered from a standard 5 V micro-USB input. In idle, the unit typically consumes less than 3 W. During transmission, power consumption remains below 8 W.
For the cleanest installation, we recommend using our CM-DM USB power filter together with a short 15 cm USB cable. Any decent USB-C power supply with sufficient current capability will work well, provided the cable and filtering are suitable for RF use.
Recommended Power Setup
- Input voltage — 5 V via micro-USB.
- Idle consumption — less than 3 W.
- Transmit consumption — less than 8 W.
- Recommended filtering — RF.Guru CM-DM USB power filter.
- Recommended cable — short 15 cm USB cable to reduce unwanted pickup and cable-borne noise.
- Power supply — any decent USB-C power supply with enough current capability is suitable.
UHF RF Measurements
All measurements in this section apply to the UHF RF platform used in this product.
Sensitivity Measurements
The 12 dB SINAD sensitivity was determined using a 1 kHz tone FM-modulated at a 2.5 kHz deviation and injected into the receiver. This gives a realistic view of actual receive performance under standard SINAD measurement conditions.
RF Cleanliness
Measured with a calibrated setup and 36 dB attenuator, the UHF RF chain shows very clean output behavior. Worst-case harmonic level is −63.56 dBc and the spectrum confirms excellent suppression of unwanted products inside and outside the occupied channel.
These measurements reflect the UHF hardware platform used for this model.
Spectrum
Harmonics
Channel Power
Mini-FAQ
- What is different from the standard Analog HotSpot? ... this version adds an integrated SIM7600G-H 4G LTE modem for mobile data connectivity.
- Which band is available? ... UHF only, covering 400–480 MHz.
- Which color is available? ... this model is offered with a red aluminum body and black aluminum base.
- How fast is the built-in 4G connection? ... up to 150 Mbps downlink and 50 Mbps uplink, which is more than enough for analog hotspot use.
- Does it work with alwaysconnected.eu? ... yes, it works smoothly with https://alwaysconnected.eu/.
- Is there a companion app? ... yes, the free SVXLink Hotspot Companion App is available for Windows, macOS, Linux, Android, iPhone, and iPad at https://svxlink-hotspot.app/.
- Which radio module should I choose? ... we recommend the SA818PRO for most users because it is the newer and firmware-upgradable platform with flawless hardware CTCSS/CDCSS support. Choose the SA818S if you specifically need audio-filter bypass or software CTCSS detection.
- How is it powered? ... the unit is powered from 5 V via micro-USB. We recommend using our CM-DM USB power filter, a short 15 cm USB cable, and any decent USB-C power supply.
- How much power does it consume? ... less than 3 W in idle and less than 8 W during transmission.
- Is it handmade? ... yes, it is handmade in Belgium. Please allow 1–2 weeks for assembly and shipping depending on order volume.
- Can it still run SVXLink and EchoLink? ... yes, it is built for SVXLink / EchoLink analog hotspot operation.
- Can I connect an external antenna? ... yes, for more coverage you can use an external UHF antenna suited to your installation.
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