Quick Specs Table (Selling Summary)
| Feature | Benefit |
|---|---|
| AI Noise Reduction (1–15) | Super-clean audio |
| PA/AM/FM/USB/LSB Modes | All popular modes in one radio |
| Dual Watch (2 channels) | Monitor two frequencies at once |
| Adjustable Color Backlight | Day/night visibility |
| Clarifier (fine tuning) | Perfect SSB reception |
| Full Button Lock | Prevents accidental changes |
| 12–13.8V DC (neg ground) | Works in cars, trucks, base |
| Direct battery connection | Max power + less noise |
| Complete kit (mic, bracket, cord) | Ready to install |
| SO-239 antenna connector | Standard, easy to use |
Included Accessories:
- 310SDR Unit ×1
- Stock Microphone ×1
- DC Power Cord with Inline Fuse ×1
- Mounting Bracket with Hardware ×1
- Microphone Hanger with Hardware Set ×1
- Operating Manual ×1
- Warranty Registration Form ×1
Important Installation & Safety Notes
- Do not install in any location that interferes with safe vehicle operation.
- Do not pinch or sharply bend power or antenna cables.
- Route coaxial cable away from power cables and vehicle wiring.
- Before installation: measure battery terminal voltage with engine running – must not exceed 16 VDC.
- A switched power source is recommended to prevent draining the vehicle battery.
- Connecting directly to the battery provides:
- Maximum RF output
- Noise reduction (battery acts as a large capacitor)
- When testing VSWR:
- Close all vehicle doors
- Avoid testing near large metal objects or buildings
Key Selling Points of the 310SDR Transceiver
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Advanced AI-Powered Noise Reduction
Feature: Built-in AI Noise Reduction with 15 adjustable levels (default level 6).
Benefit: Dramatically cleans up receive audio by reducing background noise, making weak signals clearer and listening less fatiguing, especially in noisy mobile or base environments.
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Multi-Mode Operation
Feature: Supports PA / AM / FM / USB / LSB modes, selectable via a single button (MODE/BEEP).
Benefit: Extremely versatile – works for short-range FM, long-distance SSB (USB/LSB), and standard AM. Suitable for both hobbyist and professional use across different bands.
- Dual Watch (DW) Function
Feature: Monitor two channels simultaneously with the DW/RFG button.
Benefit: Never miss traffic on a priority channel while scanning or listening to another. Ideal for monitoring emergency or calling channels.
-
User-Friendly Color LCD & Menu System
Feature: Adjustable LCD backlight color (long press MENU/COLOR) and an intuitive menu system.
Benefit: Customizable visual interface for day/night operation. Easy to navigate settings without needing a computer.
-
Clarifier (CLARIFIER) for Fine Tuning
Feature: Dedicated Clarifier mode (CLA/LOCK button) with adjustable tuning steps.
Benefit: Allows precise fine-tuning of off-frequency SSB signals, ensuring clear voice reproduction on sideband.
-
Built-In Protection & Lock Function
Feature: One-button full lock (long press CLA/LOCK) disables all buttons and knobs. Also includes VSWR protection guidelines (do not exceed 1.8:1).
Benefit: Prevents accidental setting changes during operation. Following VSWR guidelines protects the final RF transistors from damage.
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Robust Mobile & Base Installation Flexibility
Feature: Works on 12–13.8V DC negative ground systems. Can be connected to fuse block (switched) OR directly to battery.
Benefit: Direct battery connection maximizes RF output and reduces vehicle noise (battery acts as a large capacitor). Suitable for both permanent mobile installs and base station use.
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Complete Package – Ready to Use Out of the Box
Feature: Includes transceiver, stock microphone, DC power cord with inline fuse, mounting bracket & hardware, microphone hanger, manual, and warranty card.
Benefit: No need to buy additional basic accessories. Everything required for installation and operation is included.
-
Standard Antenna Interface
Feature: Rear-panel SO-239 connector (PL-259 mate) with 50-ohm impedance. Recommends RG213, RG58A/U, or Mini RG-8 coax.
Benefit: Compatible with virtually all standard HF/VHF mobile and base antennas – easy to replace or upgrade antennas.
-
Ignition Noise Blanker & Filter Compatibility
Feature: Built-in noise blanker circuit. For extreme cases, compatible with RF Limited XLF Series alternator/ignition noise filters.
Benefit: Significantly reduces alternator and ignition whine in vehicles, providing clean receive audio even in electrically noisy installations.
Featured Review
“The LT-310SDR punches well above its weight for the price. Compact, multi-mode, and the AI noise reduction actually works.” — Simon the Wizard, simonthewizard.com
Additional information
| Weight | 0.7 kg |
|---|---|
| Dimensions | 21 × 19 × 5 cm |
| Config | Dark Blue |
| Frequency Range | 26.965 ~ 27.855 MHz |
| Number of Channels | 80 |
| Antenna Impedance | 50 ohms, unbalanced |
| Frequency Control | Digital Phase-Locked Loop (PLL) Synthesizer |
| Power Supply | 12–13.8V DC, negative ground |
| Output Power | SSB: 15W, FM: 7W, AM: 7W (Avg), PEP: 16W |
| Frequency Steps | 10 Hz – 1 MHz |
| Spurious Emissions | >50 dB below peak output |
| Carrier Suppression | >55 dB below peak |
| Unwanted Sidebands | >50 dB below peak (1 kHz tone) |
| FM Deviation | ±2 kHz max |
| Audio Response | >30 dB below peak |
| Microphone Impedance | 300–30,000 Hz, ECM, 2.2 kΩ |
| Circuit Type | Double Conversion Superheterodyne |
| IF Frequencies | 1st: 10.695 MHz (SSB), 2nd: 455 kHz |
| Sensitivity | SSB: 0.25 μV (10 dB S+N/N), AM: 1.0 μV, FM: 0.3 μV (12 dB SINAD) |
| Selectivity | SSB: 2.6 / 3.3 kHz (-6 / -60 dB), AM/FM: 6.0 / 9.0 kHz (-6 / -60 dB) |
| Clarifier Range | Continuous (Digital VFO) |
| Audio Output Impedance | 8 Ω |