Kirisun PT558S Walkie-Talkie UHF VHF Dual Band Habdheld Radio Kirisun PT4200 Upgrade
Main features
DSP Audio & CTCSS/DCS
Digital noise blanking plus 38 analog and 83 digital sub-tones eliminate co-channel interference from nearby Wi-Fi or LED drivers.
16-Channel Rotary Selector
Segment by floor, shift, or department; clone via wired cable in under 30 seconds per unit.
Voice-Number Reporting
Audible channel and battery announcements—perfect for gloved staff or dark warehouse aisles.
Long lasting battery life
Auto power-save and time-limited TX stretch the 1500 mAh pack to 12-hour shifts, cutting battery churn.
Dual Side-Keys + Front PTT
Programmable for monitor, scan, or alarm—large enough for construction gloves.
Compact 120 g Design
Fits shirt pockets and belt clips without snagging on pallet jacks or supermarket cages.
IP54 Housing & Drop-Tested
Survives 1.2 m drops and dust ingress, validated on loading docks and outdoor festivals.
Other functions
- CTCSS/DCS Encode & Decode
- Scan List On/Off
- Squelch Level (0-9)
- Voice Prompt Language
- Power-Save Mode On/Off
- Time-Out-Timer (TOT)
- Busy-Channel Lockout
- Side-Key Function Assignment
PT558S Accessories
- Battery KB-58L
- Antenna
- Lanyard
- Back Clip
- Charger
- Power adaptor
- Manual
Specification
| Specification | Value |
|---|---|
| Model | PT558S |
| Frequency Range | 136–174 MHz; 400–470 MHz |
| Channels | 16 |
| Channel Spacing | 25 kHz (Wide) / 12.5 kHz (Narrow) |
| Operating Temperature | -25°C to +55°C |
| Antenna Impedance | 50 Ω |
| Battery (Standard) | Li-Ion 1000 mAh, 7.4 V |
| Dimensions | 102 × 56.5 × 29.5 mm |
| Weight | 235 g (with battery & antenna) |
| Receive Sensitivity (12 dB SINAD) | ≤ 0.2 μV |
| Adjacent Channel Selectivity | ≥ 60 dB @ 12.5 kHz; ≥ 70 dB @ 25 kHz |
| Intermodulation Attenuation | ≥ 60 dB |
| Audio Output Power | 1 W |
| Transmit Power (High/Low) | 4 W / 1 W |
| Transmit Spurious Emission | -36 dBm < 1 GHz; -30 dBm > 1 GHz |
| Remaining Deviation | ≥ 40 dB @ 25 kHz; ≥ 35 dB @ 12.5 kHz |
| Audio Distortion | < 5 % |
| Frequency Stability | 2.5 ppm |
| Modulation Limitation | ±2.5 kHz @ 12.5 kHz; ±5 kHz @ 25 kHz |
