説明
Information Is the First Infrastructure to Fail. And the Last to Be Restored.
When the grid flickers and the cell towers fall silent, a charged smartphone is a brick within hours. The Signal Keeper is not merely a radio — it is a declaration of information sovereignty. Its DAB+ digital tuner pulls crystal-clear broadcasts from the digital ether while its FM receiver captures the analog backbone that outlasts every network failure. Powered by an integrated 5000mAh lithium battery and a photovoltaic panel that harvests energy from direct sunlight or ambient window light, this device will still be receiving when every other screen in the room is dark.
But the Signal Keeper is not a prepper's panic buy. It is the companion for the weekend hiker who wants BBC Radio 4 at camp, the fisherman who checks weather bands at dawn, and the suburban parent who sleeps better knowing the emergency crank and SOS alarm are within reach during storm season. The built-in LED flashlight — three modes including strobe — doubles as a reading lamp and a distress beacon. The USB-A output port transforms the internal battery into a 5000mAh power bank: enough to bring a dead phone to 60% when you need one critical call.
The world does not announce its emergencies. The Signal Keeper ensures you hear the announcement when it comes.
Key Features
- ✦ DAB/DAB+ digital radio — superior audio clarity with station name and track info display
- ✦ FM radio with extended frequency range (87.5-108 MHz) for global compatibility
- ✦ Integrated 5000mAh power bank — charges smartphones, GPS units, and tablets via USB-A
- ✦ Solar panel + hand crank + USB-C triple charging — never dependent on a single source
- ✦ 3-mode LED flashlight (high / low / SOS strobe) with 100+ lumen output
- ✦ Emergency SOS alarm at 120dB — audible at 300+ meters in open terrain
- ✦ LCD display with battery indicator, signal strength, and clock
Technical Specifications
- Radio Bands: DAB/DAB+ (174-240 MHz), FM (87.5-108 MHz)
- Battery: 5000mAh Li-ion rechargeable
- Charging Methods: Solar (built-in panel), Hand Crank, USB-C (5V/1A)
- Power Bank Output: USB-A 5V/1A (charges phones/GPS)
- Speaker: 3W magnetic driver, 40mm diameter
- Flashlight: 3-mode LED (high/low/SOS), ≥100 lumens
- SOS Alarm: 120dB piezoelectric buzzer
- Display: Backlit LCD with signal, battery, and time indicators
- Material: ABS + TPE rubber overmold, IPX4 splash-resistant
- Weight: 340 g (12 oz)
Who It Serves
The Signal Keeper bridges two worlds: the prepared civilian and the weekend adventurer. Emergency preparedness advocates appreciate the triple-redundant charging architecture and 120dB alarm — a single device replaces the radio, flashlight, and power bank in a go-bag. Campers, hikers, and overlanders use the DAB+ tuner for weather and news at remote campsites. Construction crews on sites without power rely on the solar panel for all-day music. And elderly users value the large backlit display and simple rotary controls over touchscreen complexity. Wherever information access matters and wall power does not exist, the Signal Keeper is the answer.
Frequently Asked Questions
Q: Does DAB+ work in North America?
A: DAB/DAB+ is the standard in Europe, Australia, and parts of Asia. In North America, the FM band is the primary broadcast medium and the Signal Keeper's FM receiver delivers full coverage. The DAB+ tuner works when traveling internationally.
Q: How long does the battery last on a full charge?
A: Approximately 12-16 hours of continuous radio playback, 6-8 hours of flashlight use, or enough to charge a typical smartphone to 50-60%. Solar charging adds 30-60 minutes of radio time per hour of direct sunlight.
Q: Can I charge the radio while listening?
A: Yes. USB-C pass-through charging allows simultaneous playback and charging. The solar panel also trickle-charges during use — leave it on a windowsill during the day for indefinite cordless operation.
Q: How loud is the SOS alarm?
A: 120 decibels — comparable to a chainsaw or thunderclap at close range. It is designed to be heard by search and rescue teams at 300+ meters in open terrain. The strobe mode adds visual signaling for nighttime emergencies.
Q: Is it waterproof?
A: The Signal Keeper carries an IPX4 rating — protected against splashing water from any direction. It handles rain, splashes, and humid environments but should not be submerged. The rubber overmold provides drop protection to 1 meter.
Q: Does the hand crank require a lot of effort?
A: One minute of cranking at moderate speed yields approximately 10-15 minutes of radio playback or 3-5 minutes of flashlight. The crank is geared for efficiency — a child can operate it. It is the last-resort charging method, not the primary one.
Q: How many preset stations can it store?
A: Up to 30 DAB+ presets and 30 FM presets. The auto-scan function populates station lists in under 30 seconds. Manual tuning is also available via the rotary dial for fringe-reception areas.



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