Robust Capabilities in the Smallest,
Compact Size

VX-820 Series

Don’t be deceived by its size because as small as it may be, the Vertex Standard VX-820 series is unobtrusive and is equipped with more enhanced features, which are typically not found in other radios of this size.
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Resistance for Harsh Environments

Manufactured to strict IP ratings, the VX-820 series withstands even the toughest environments such as rain, snow, fire suppression spray and dust. The robust two-way radio also meets international waterproofing standard IP57 where water does not harm the radio when submersed to a depth of 1 meter for up to 30 minutes.

Long-Lasting Power for Maximum Performance

The VX-820 series offers a choice of Li-Ion battery power up to 3000 mAh for over 20 hours of battery life (per specifications) to compromise long-hours of performance.

Customizable Functions to Meet Your Communication Needs

Get the ultimate signalling performance with a choice of multiple 2-tone encode and decode or 5-tone signalling 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.

Meeting Safety Standards

In any emergency situations, you can count on the VX-820 series to cater to your needs. Equipped with the built-in Emergency notification function, which will switch to a designated channel and send an emergency alert. The two-way radios also include Remote Listen, which turns the radio on remotely when necessary to check out what is happening near the radio.

Loud Audio for Noisy Environments

With 700 mW audio output, you can be assured of hearing critical information you need in the most needed situations.

Exclusive Auto-Range Transpond System - ARTS™

Like all other Vertex Standard radios, the VX-820 Series is designed to inform you when you and another ARTS™- equipped station are within communication range. A great solution to keep your workers coordinated.

Additional Features

  • 512 Channel capacity (VX-829/824)
  • 16 Channel capacity (VX-821)
  • Wide band coverage
  • 7 Programmable keys (VX-829/824)
  • 3 Programmable keys (VX-821)
  • Programmable channel selector
  • Direct channel recall
  • 12-Character alphanumeric display
  • RX/TX Battery power save
  • 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
Dust protected Submersible (3 ft for 30 min)
MIL-STD 810 Rating
General Specification
Frequency Range 134 - 174 MHz 400 – 470 MHz
450 – 520 MHz
Number of Channels and Groups 512 and 32 Groups (VX-829/VX-824)
16 and 1 Group (VX-821)
Power Supply Voltage 7.5 V DC ± 20%
Channel Spacing 12.5 / 20 / 25 kHz
PLL Steps 5 / 6.25 kHz
Battery Life (5-5-90 duty)
3000 mAh FNB-92LI

2000 mAh FNB-V87LI

23 hours (18 hours w/o saver)

21.5 hours (16.5 hours w/o saver)

16 hours (12.5 hours w/o saver)

15 hours (11.5 hours w/o saver)
IP Rating IP 57
Operating Temperature Range -30° C to +60°C
Frequency Stability ± 2.5 ppm
RF Input-Output Impedance 50 Ohms
Dimension (H x W x D) 96.5 x 57.5 x 37.5 mm (w/FNB-86LI)
Weight (Approx.) 310 g (w/FNB-V86LI and Belt Clip)
Receiver Specification*
Sensitivity 12 dB SINAD 0.25 / 0.32 μV
Adjacent Channel Selectivity 70 dB / 65 dB
Intermodulation 75 / 70 dB
Spurious and Image Rejection 75 dB
Hum and Noise 48 / 42 dB
Audio Output 700 mW @ 16 Ohms 5% THD
*Measured by TIA/EIA-603
Transmitter Specification*
Output Power 5 / 2.5 / 1 / 0.25 W
Modulation 16K0F3E, 11K0F3E
Spurious Emissions 70 dB below carrier
FM Hum & Noise 45 dB / 40 dB
Audio Distortion < 3 % @1 kHz
*Measured by TIA/EIA-603
  • MH-50D7A: Public Safety speaker mic w/toggle
  • MH-66A7A: Submersible noise cancelling speaker mic
  • MH-66B7A: Submersible speaker mic w/PF key & toggle
  • FNB-V92LI: 3000 mAh Li-Ion battery
  • FNB-V92LIIS: 3000 mAh Intrinsically safe Li-Ion battery
  • FNB-V87LIA: 2300 mAh Li-Ion battery
  • VAC-6920: 6-Unit rapid charger
  • VCM-2: Vehicular charger kit
  • Belt clips and leather cases available
Option Boards
  • FVP-25: Voice Inversion Encryption & DTMF Paging
  • FVP-35: Rolling Code Encryption
  • FVP-36: Voice Inversion Encryption
  • DVS-5: Digital voice storage
  • VME-100: MDC-1200® / GE-STAR® ANI Encode
  • VMDE-200: MDC-1200® / GE-STAR® ANI Encode / Decode
Spec Sheet Downloads
Owner's Manual Downloads