Tecsun R-911 World Radio
Tecsun R-911 World Radio
Tecsun R-911 World Radio
The Tecsun R-911 is a compact portable shortwave radio receiver designed for international broadcast reception across multiple frequency bands including AM, FM, SW1-SW9, and LW. Professional radio enthusiasts, international news monitors, and amateur radio operators rely on this device to access global broadcasts, maritime weather reports, and emergency communications with exceptional clarity. This model solves the critical challenge of reliable long-distance signal reception in a lightweight, battery-powered format without requiring complex antenna configurations.
Product Overview
The Tecsun R-911 operates on a superheterodyne receiver architecture with dual conversion technology, enabling precise tuning across shortwave bands with minimal interference and signal distortion. The receiver utilizes a ferrite rod antenna for AM/LW reception and an external antenna jack for enhanced shortwave performance, allowing users to capture weak international signals with superior signal-to-noise ratio. The digital frequency display with 0.1 kHz resolution ensures accurate station identification across the entire tuning range, while the PLL (Phase-Locked Loop) synthesizer maintains frequency stability even during extended listening sessions.
What distinguishes the R-911 from basic portable radios is its selective bandwidth filtering and superior audio amplification circuitry, delivering crisp voice clarity and music fidelity across all frequency bands. The radio features a 3.5mm earphone jack for private listening and a built-in speaker with adequate output for indoor monitoring. Its compact dimensions and lightweight construction make it ideal for field operations, emergency preparedness kits, and travel applications where reliable global communication access is essential.
Key Specifications
| Specification | Details |
| Product Type | Portable Digital Shortwave Radio Receiver |
| Brand | Tecsun |
| Model | R-911 |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Frequency Range | AM 520-1710 kHz, FM 87-108 MHz, SW 2.3-21.85 MHz, LW 150-281 kHz |
| Display Type | Digital LCD with 0.1 kHz resolution |
| Receiver Architecture | Dual Conversion Superheterodyne with PLL Synthesizer |
| Power Source | 3 AA batteries or external DC 4.5V adapter |
| Audio Output | Built-in speaker and 3.5mm earphone jack |
| Dimensions | Approximately 190 x 110 x 60 mm |
| Weight | Approximately 350 grams with batteries |
Key Features
- Dual Conversion Superheterodyne Receiver with PLL Synthesizer for stable, interference-free reception across all frequency bands
- Digital LCD Display with 0.1 kHz tuning resolution enabling precise station identification and frequency logging
- Multi-Band Reception covering AM, FM, SW1-SW9, and LW bands for comprehensive global broadcast access
- Dual Antenna System with ferrite rod for AM/LW and external jack for enhanced shortwave signal capture
- Selective Bandwidth Filtering reducing adjacent channel interference and improving voice clarity on crowded bands
- Battery and External Power Options supporting 3 AA batteries or 4.5V DC adapter for extended operation
- Compact Portable Design at 350 grams enabling field deployment and emergency kit integration
- Headphone Jack with 3.5mm connector for private monitoring without disturbing others
Applications and Use Cases
- International News Monitoring: Receive BBC World Service, Voice of America, Deutsche Welle, and other global broadcasters for real-time news access independent of internet connectivity
- Amateur Radio Operations: Monitor amateur radio bands and emergency frequencies during field expeditions and disaster response scenarios
- Maritime and Aviation Monitoring: Access marine weather broadcasts, ship-to-shore communications, and aviation frequencies for safety-critical information
- Emergency Preparedness: Maintain communication capability during natural disasters, power outages, and network failures when conventional media becomes unavailable
- Educational and Research Applications: Study radio propagation phenomena, international broadcast standards, and frequency allocation across different geographic regions
- Travel and Expedition Use: Receive local and international broadcasts while traveling to remote locations with limited internet infrastructure
How to Use
To begin operation, insert three AA batteries into the battery compartment or connect a 4.5V DC external power adapter. Power on the radio using the main switch and allow the receiver to stabilize for 30 seconds. Select your desired frequency band using the band selector switch, then use the tuning dial or digital frequency input to locate your target station. For AM and LW reception, the internal ferrite rod antenna typically provides sufficient signal strength. For shortwave reception, especially for weak distant stations, connect an external antenna to the antenna jack using appropriate coaxial cable to dramatically improve signal strength and reduce noise floor.
Adjust the volume control to comfortable listening level and use the earphone jack for private monitoring if required. Fine-tune the frequency using 0.1 kHz increments to achieve optimal audio clarity, as shortwave signals often require precise frequency alignment due to Doppler shift and propagation variations. For extended listening sessions, use external power to preserve battery life. Store the radio in a dry location and protect the antenna jack from moisture and physical damage to maintain long-term reliability.
Frequently Asked Questions
What is the difference between the Tecsun R-911 and other portable shortwave radios?
The R-911 features dual conversion superheterodyne architecture with PLL synthesizer, providing superior frequency stability and reduced adjacent channel interference compared to single conversion designs. The 0.1 kHz digital resolution enables precise tuning on crowded shortwave bands, while the selective bandwidth filtering delivers cleaner audio in high-interference environments. These technical advantages make it particularly suitable for professional monitoring and serious hobbyists who require reliable reception of weak distant signals.
Can I use the Tecsun R-911 with an external antenna for better shortwave reception?
Yes, the R-911 includes a 3.5mm antenna jack specifically designed for external antenna connection. For shortwave reception, a 10-20 meter random wire antenna or a dedicated shortwave dipole antenna can significantly improve signal strength and reduce noise floor. Connect the antenna using appropriate coaxial cable with proper impedance matching. External antennas are particularly effective for receiving weak distant stations and improving reception during poor propagation conditions.
How long will the batteries last on the Tecsun R-911?
Battery life depends on usage patterns and speaker volume levels. With typical moderate volume listening using three AA alkaline batteries, expect 20-30 hours of continuous operation. Using rechargeable NiMH batteries reduces operational time to approximately 15-20 hours due to lower voltage output. For extended field operations, use external 4.5V DC power adapter or carry spare battery sets. Turning off the radio when not in use and using headphones instead of the speaker significantly extends battery life.
Does the Tecsun R-911 require any special setup or calibration?
The R-911 requires no calibration before use. Simply insert batteries or connect external power, allow 30 seconds for the PLL synthesizer to stabilize, then begin tuning. The radio is factory-calibrated and frequency-locked. For optimal performance, ensure the antenna jack is clean and dry, and avoid exposing the radio to extreme temperature changes which may temporarily affect frequency stability until thermal equilibrium is reached.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
Why Buy from The Tech Depot
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy Tecsun R-911 World Radio Online in India
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