Key Features:

ATEX Approved for Gas Protection
II 2 G E Ex ib IIC T4

Withstands Harsh Environments
Water, dust, temperature extremes, shock and vibration are no problem for these radios manufactured to rugged Military Standards specifications. The VX-820 Series also meets international waterproofing standard IP57 where water does not harm the radio when submersed to a depth of 1 metre for up to 30 minutes.

Tailored Communications to Meet Your Demands
Get the ultimate signaling performance with a choice of multiple 2-tone encode and decode or 5-tone signaling to support the most advanced communications needs from individual to fleet operations. The front panel also includes a 7-colour LED with a variable flash pattern for custom incoming call alerts.

When Safety Counts – Never Be Alone
When help is needed, the VX-820 Series has Emergency notification that will switch to a designated channel and send an emergency alert. The radios also include Remote Listen which turns the radio on remotely if needed to check out what is happening near the radio.

Loud Audio for Noisy Environments
With 700 mW audio output, be assured of hearing critical information you need in most situations.

Exclusive Auto-Range Transpond System – ARTS™
Only Vertex Standard radios are designed to inform you when you and another ARTS™-equipped station are within communication range. If out of range for more than 2 minutes, your radio senses no signal has been received and beeps to alert you. The base station can then alert the field unit to move back in range. A great solution to keep your workers co-ordinated.

Additional Features
• 512 Channel capacity (VX-829/824)
• 16 Channel capacity VX-821)
• Wide band coverage
• Seven programmable keys (VX-829/824)
• Three programmable keys (VX-821)
• Direct channel recall
• 12-Character alphanumeric display (VX-829/824)
• RX/TX Battery power save
• DTMF ANI
• CTCSS / DCS Encode and Decode
• User selectable tone
• BCLO / BTLO and TOT
• MDC-1200® ANI Encode
• Stun / kill / revive (5-tone)
• Lone Worker
• Compander
• Whisper
• Minimum volume control
• Scan options: Priority, Dual Watch, Follow-me, Follow-me Dual Watch, Talk Around
• Programmable home channel function
• Radio-to-radio cloning

 

 

Vertex Standard VX-820 ATEX Series Radio Specifications

General Specifications
Frequency Range	VHF: 134 – 174 MHz UHF: 400 – 470 MHz
Number of Channels	512 and 32 Groups (VX-829/VX-824) 16 and 1 Group (VX-821)
Power Supply Voltage	7.4 V DC ± 20%
Channel Spacing	12.5 / 20 / 25 kHz
PLL Steps	5 / 6.25 kHz
Battery Life (5-5-90 duty) 1500 mAh FNB-V100LIEX	VHF: 16.5 hrs (12.5 hrs w/o saver) UHF: 16 hrs (12.2 hrs w/o saver)
IP Rating	IP 57
Operating Temperature Range	–10° C to +55°C
Frequency Stability	±2.5 ppm
RF Input-Output Impedance	50 Ohms
Dimension (H x W x D)	96.5 x 57.5 x 41 mm
Weight (Approx.)	335 g (w/FNB-V100LIEX, Antenna and Belt Clip)
Receiver Specification measured by EN 300 086
Sensitivity 20 dB SINAD	-4 / -2 dB μV emf
Adjacent Channel Selectivity	75 / 65 dB
Intermodulation	65 dB
Spurious and Image Rejection	70 dB
Hum and Noise	48 / 42 dB
Audio Output	700 mW @ 16 Ohms 5% THD
Transmitter Specification measured by EN 300 086
Output Power	1 / 0.5 W
Modulation Limiting	±5.0 kHz @ 25 kHz ±4.0 kHz @ 20 kHz ±2.5 kHz @ 12.5 kHz
Spurious Emissions	-36 dBm @ ≤ 1 GHz, - 30 dBm @ > 1 GHz
FM Hum & Noise	45 / 40 dB
Audio Distortion	< 3 % @1kHz