SharkRF M1KE: Features, Issues, and User Suggestions
Overview
The SharkRF M1KE is a handheld WLAN IP transceiver designed for amateur radio and unlicensed use, supporting multicast communication, digital modes (DMR, D-STAR, C4FM, NXDN), and AllStarLink. It features a Li-Ion battery with up to 30 hours of operation, DSP audio processing, and a web interface for configuration. Below is a consolidated review of user feedback, issues, and suggested improvements, organized into logical sections.
Features
- Audio Processing: MEMS microphone and speaker with DSP (dynamic range compression, automatic gain control, equalization, noise reduction, voice effects like pitch shift, chorus, delay).
- Connectivity: Supports up to 5 Wi-Fi network configurations, automatic connection management, and AllStarLink node registration.
- Configuration Profiles: Stores 10 profiles, with automatic saving and reboot on profile change. Option to always use profile #1 on power-on.
- Web Interface: Browser-compatible for configuration, monitoring, remote control, and audio playback. Toggle menu reveals/conceals status page tabs.
- Battery: Li-Ion with up to 30 hours, fast charging via USB-C. Battery indicator may not update accurately in SharkRF link app.
Reported Issues
Audio Issues:
- QUESTION: intermittent receive and dropouts, possibly due to internet or device issues.
- QUESTION: How to minimize pop sound from speaker on loud audio.
- QUESTION: DMR transmit audio issues: swishing sound and squelch tail. Noise reduction and mic gain adjustments (-6 or -12 dB) recommended.
- QUESTION: Low audio reported by some users, fixable with gain adjustment.
Profile Selection:
- QUESTION: Selecting a new profile may cause stuttering or double reboots.
- SUGGESTION: Triple-press for profile switching lacks adjustable speed and confirmation tone/voice prompt.
Wi-Fi and Connectivity:
- QUESTION: Dropouts due to Wi-Fi interference, server issues, or unstable internet. Remedy…use 2.4GHz Wi-Fi, 20MHz bandwidth, and channels 1, 6, or 11.
- QUESTION: AllStarLink ranger beeps activate spontaneously with multiple M1KEs connected. Undocumented feature?
Battery and Hardware:
- QUESTION: Battery indicator in SharkRF link app may not update correctly.
- QUESTION: Replacement battery availability concerns, as OpenSpot 3/4 batteries are backordered.
Accessibility:
- SUGGESTION: Status page speaker button and toggle menu (Control+M, Control+V for volume) not accessible for sight-disabled users.
- SUGGESTION: Incomplete voice prompts in menus, needing more detail for navigation.
User Suggestions for Improvements
Additional Notes
- BrandMeister Talk Groups: Statewide talk groups are limited
- Solving for squelch tail and noise reduction issues:
- Adjust the mic gain setting to a lower level (e.g., -6 or -12 dB) to reduce background noise and improve audio quality.
- Use the Parrot connector to test audio settings.
