Albrecht Tectalk Worker 3

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Overview

Albrecht Tectalk Worker 3 PMR446 Radio
Albrecht DR 112 DAB+ Emergency Radio

This document describes two different devices: the Albrecht Tectalk Worker 3 PMR446 Radio and the Albrecht DR 112 DAB+ Emergency Radio.

Albrecht Tectalk Worker 3 PMR446 Radio

The Albrecht Tectalk Worker 3 is a PMR446 radio designed for reliable communication. It is available as a single unit or in various hard case sets (2-pack, 4-pack, and 6-pack), which include additional accessories like desktop chargers, headsets with PTT buttons, and extra battery packs.

Function Description: The Tectalk Worker 3 is a portable two-way radio operating on the PMR446 frequency band. It supports 16 channels, allowing for clear and efficient communication. The radio features a Push-to-Talk (PTT) button for transmitting, dedicated Channel + and Channel - buttons for channel selection, and a programmable side button for various functions.

Important Technical Specifications:

Frequency Range: PMR446 (446.00625 - 446.19375 MHz)
Channels: 16
Battery: 2000 mAh / 3.7 V rechargeable Lithium-Ion battery with rotating belt clip
Frequency Stability: ± 2.5 ppm
Operation Temperature: -20 °C to +50 °C
Transmission Power (ERP): 500 mW
Maximum Frequency Deviation: ≤ 2.5 kHz
Spurious Emission: ≤ 7.5 µW
Adjacent Channel Power: ≤ -60 dB
SNR: ≥ -45 dB
QT/DQT: 0.4 ± 0.1 kHz
Modulation Sensitivity: 8-12 mV
Transmission Current: ≤ 400 mA
Receiver Sensitivity: -122 dBm (12 dB SINAD)
Audio Power: 0.4 W (at 8 Ω Load)
Audio Distortion: ≤ 10%
Intermediation: ≥ 60 dB
Adjacent Channel Selectivity: ≥ 60 dB
Clutter Suppression: ≥ 65 dB
Receiver Current: ≤ 70 mA

Usage Features:

Charging: The radio can be charged via the included desktop charger with a USB-C cable or directly via the USB-C charging socket on the device. A full charge takes approximately 3 hours. A low battery warning "Please charge the battery" is announced every 20 seconds when the battery is low, and transmission is no longer possible.
Headset Connection: A Kenwood-compatible headset or speaker/microphone can be connected to the dedicated socket. Note that the radio is not water-resistant when external accessories are used, so the rubber cover should be closed when no accessories are connected.
Channel Selection: The radio supports 16 PMR446 channels. For compatibility with older 8-channel radios, only the first 8 channels can be used.
Transmitting and Receiving: The radio automatically enters receive mode when switched on. A green LED indicates reception, and a red LED indicates transmission. To transmit, press and hold the PTT button and speak into the microphone from about 5 cm away.
Optional Functions (Programmable via Software):
- Squelch: Adjustable in 9 levels to mute the speaker when no signal is received.
- VOX (Voice Operated Transmission): Allows hands-free transmission, activated by speaking into the microphone. VOX sensitivity is adjustable in 8 levels, and VOX delay (0.3 to 3.0 seconds) can be set.
- Programmable Key: The side key can be assigned various functions, including:
  - Monitor: Temporarily deactivates squelch to hear all signals, including weak ones.
  - Scan: Scans all channels for activity.
  - Alarm/Call: Sends an audible alarm or call signal.
- Battery Saving Mode: Level 1 is the default, reducing power consumption.
- Beep at end of reception: On by default.
- Roger Beep: Off by default.
- Busy Channel Lockout (BCL): Prevents transmission on an occupied channel.
- CTCSS/DCS Tones: Supports 44 CTCSS tones and 211 DCS codes for filtering unwanted transmissions.
- Transmit Time Limit (Time-Out Timer): Limits transmission time to prevent accidental channel blocking (default 90 seconds, adjustable in 15-second increments from 90 to 520 seconds).

Maintenance Features:

Safety Instructions: Repairs should only be performed by qualified technicians. Do not disassemble or modify the transceiver. Avoid direct sunlight, extreme heat, unstable surfaces, dust, moisture, water, and explosive environments. Do not charge the battery in explosion-endangered areas.
Troubleshooting: Provides solutions for common issues such as the device not switching on (charge battery, check insertion, clean contacts), inability to communicate (check channel/subchannel, range), one-way communication (check channel/subchannel), interrupted reception (weak signal, microphone defect), and hearing other groups (change channel).
Warranty: 2-year legal warranty covering defects in components or functions, excluding normal wear and tear or external damage.
Recycling: Complies with European electronic waste laws; dispose of at municipal collection points.

Albrecht DR 112 DAB+ Emergency Radio

The Albrecht DR 112 is a DAB+ emergency radio with multiple power and reception options, designed for use in various situations, including emergencies.

Function Description: This emergency radio offers DAB+, FM, and Bluetooth connectivity. It features multiple charging methods, including USB-C, a solar panel, and a hand crank, ensuring power availability even without external electricity. It also includes an SOS emergency function, a torch, and a reading lamp.

Important Technical Specifications:

Model Number: Albrecht DR 112
Description: DAB+/FM radio
Speaker Power: 2 x 5 Watt
FM Frequency: 87.5 to 108.0 MHz
DAB+ Frequency: 174 – 240 MHz (Band III)
Bluetooth: Version 5.0 / range 10 m
Bluetooth Frequency / Power: 2.402 – 2.480 GHz; 1 mW
Charging Input: USB-C / 5 V; 2 A
Charging Output: USB-A / 5 V; 2 A (Powerbank function)
Charging Time: 3 hours (via USB-C)
Waterproof: IPX5
Operating Temperature: -10 °C to +55 °C
Dimensions (L x W x H): 55 x 174 x 79 mm
Weight: 510 g

Usage Features:

First Steps: Fully charge the internal battery via USB-C before first use. Extend the antenna for optimal reception. Upon first power-on, select a language using the left/right and OK buttons. The radio will then perform a full scan for DAB stations.
Mode Selection: Short press the On/Off button to switch between DAB, FM, and Bluetooth modes.
DAB+ Digital Radio Mode: Listen to digital radio. Navigate stations with left/right buttons. Long press the menu button to access DAB+ specific settings like "Trim invalid stations," "Station order," "DRC" (Dynamic Range Compression), and "Manual tune." A full station scan can be initiated by holding the OK button for 2 seconds. Favorite stations can be saved by long pressing the favorite button.
FM Radio Mode: Listen to analog radio. Long press left/right buttons to cycle through stations. Manual frequency tuning is possible in 0.05 MHz steps by short pressing left/right buttons. FM menu options include "Scan settings" (restrict to strong stations) and "Audio settings" (mono only for improved reception). Favorite FM stations can also be saved.
Wireless Music Streaming (Bluetooth): Activate Bluetooth mode and search for "ALBRECHT DR 112" on your mobile device to stream audio.
System Setup: Accessible by long pressing the menu button in any mode. Settings include:
- Alarm: Configure two separate alarms, repeatable daily, weekdays, or weekends. Alarms can play a standard tone or the last FM/DAB station.
- Backlight: Adjust display brightness (low/medium/high) and automatic dimming timeout (15/30/60/120/180 seconds or "Always on").
- Time Setup: Set time/date, change format, or configure automatic time setting via FM/DAB.
- Language: Select from English, German, French, Italian, Spanish, Dutch, Finnish, Polish.
- Factory Reset: Resets all settings and favorites (caution: data loss).
- Software Version: Displays current software version.
SOS Emergency Function: Long press the SOS button (on the bottom) to activate a loud siren and flashing red/blue signal light.
Torch/Reading Lamp: Short press the torch button (on top) to activate the torch. A second press makes it blink. If the solar panel is folded up, the button activates the reading lamp (under the solar module) with 3 brightness levels.
Tripod Thread: 1/4" thread for mounting the radio.

Maintenance Features:

Battery Charging:
- USB-C: Primary charging method, takes 3 hours.
- Solar Panel: Place directly in sunlight for charging. 1 hour of solar charging provides about 20 minutes of radio use or 1 hour of torch use. Avoid shading the panel.
- Hand Crank: Extend and turn the crank (120-150 rpm, 2-2.5 times/second) for manual charging. 1 minute of cranking provides about 3 minutes of radio use.
- Powerbank Function: USB-A output (5V; 2A) allows charging external devices.
Safety Instructions: Ensure charging port cover is closed for moisture protection. Do not expose to water when ports are open. Do not disassemble. Avoid extreme temperatures. Do not place near heat sources. Excessive sound volume can cause hearing damage. Use SOS function with caution due to loud siren. Clean with a damp cloth, not abrasive materials. Do not dispose of batteries in household waste.
Troubleshooting: Provides solutions for issues like the device not switching on (charge, reset button), no sound (check mute, volume), no signal/hissing (reposition, extend antenna), and unresponsive buttons (factory reset, reset button).
Warranty: 2-year legal warranty covering defects, excluding normal wear and tear or external damage.
Recycling: Complies with European electronic waste laws; dispose of at municipal collection points. Contains non-removable Lithium-Polymer batteries; dispose of the entire device at an e-waste collection point.