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VX-820 Portable Analog Radio Series

Compact Size Portable Radios With Robust Capabilities

Don’t let the size deceive you. The smallest portable analog radio offered by Vertex Standard is unobtrusive and easy to wear all day and built with more enhanced features typically not found in other portable radios of this size. Designed to perform in the most demanding and critical conditions, the VX-820 Portable Analog Series gives you maximum radio performance for less in size and less in total cost of ownership. 

Withstands Harsh Environments

Rain, snow, fire suppression spray and dust are no problem for these radios manufactured to strict IP ratings. The VX-820 Series meets international waterproofing standard IP 57 where fresh water does not harm the radio when submersed to a depth of three feet for up to 30 minutes.

Intrinsically Safe

Intrinsically safe models are SGS certified to the requirements of ANSI/UL913 5th Edition for use in Class I, II, III, Division 1; Groups C, D, E, F, G; Temp T3C hazardous locations.

Long-Lasting Power for Responsiveness

For maximum performance, the VX-820 Portable Analog Radio Series offers a choice of Li-Ion battery power up to 3000 mAh for over 20 hours of battery life (per specifications).

Tailored Communications to Meet Your Demands

Get the ultimate signaling performance with a choice of multiple 2-tone Encode and Decode or 5-tone siginaling to support the most advanced communication needs. The front panel also includes a 7-color LED with a variable flash pattern for custom incoming call alerts.

When Safety Counts - Never Be Alone

Includes Emergency notification that will switch to a designated channel and send an emergency alert for help.

Also includes Remote Listen which turns the radio transmit on remotely if needed to check out what is happening near the radio.

For enhanced user safety, the Lone Worker mode is a built-in timer that requires the user to reset at a predetermined interval. If not reset, the radio automatically switches to Emergency mode to alert help.

Exclusive Auto-Range Transpond System (ARTS™)

Always know your connection status. Only Vertex Standard portable radios are designed to inform you when you and another ARTS™-equipped portable radio are within communication range. If out of range, your radio senses no signal has been received and beeps to alert you. A great solution to keep your workers coordinated.

Choose the Right VX-820 Portable Analog Radio to match your need:

VX-821 Portable Analog Radio:

  • Non-display portable radio
  • 16 channels/ 1 group
  • 3 custom-programmable keys

VX-824 Portable Analog Radio:

  • 12 character alphanumeric Display portable radio
  • 512 channels/ 32 groups
  • 7 custom-programmable keys

VX-829 Portable Analog Radio:

  • 12 character alphanumeric Display portable radio
  • 512 channels/ 32 groups
  • 9 custom-programmable keys
  • DTMF Speed Dial

Additional Features

  • Wide Band Coverage
  • Programmable channel selector
  • Direct Channel Recall
  • RX/TX Battery power save
  • DTMF ANI
  • Stun/kill/revive (5-tone)
  • Lone Worker
  • Auto-Range Transpond System (ARTS™)
  • 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
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Technical Specifications

VHF UHF
General Specifications:
Frequency Range 134 - 174 MHz 400 - 470 MHz; 450-512 MHz
Number of Channels and Groups 512 / 32 Groups (VX-824, VX-829); 16 / 1 Group (VX-821)
Power Supply Voltage 7.4 V DC ± 20%
Channel Spacing 12.5/20*/25* kHz
PLL Steps 1.25 / 2.5 / 5/ 6.25 kHz 5/ 6.25 kHz
Battery Life (5-5-90 duty) 3000 mAh FNB-V129LI-UNI 3000 mAh FNB-92LI/ FNB-V92LIIS 2300 mAh FNB-V128LI-UNI 2300 mAh FNB-V87LIA 1380 mAhFNB-V127LI-UNI 1380 mAh FNB-V86LIA 23 hours (w/ saver) / 18 hours 23 hours (w/ saver) / 18 hours 18.4 hours (w/ saver) / 14.3 hours 18.4 hours (w/ saver) / 14.3 hours 11 hours (w/ saver) / 8.6 hours 11 hours (w/ saver) / 8.6 hours 21.5 hours (w/ saver) / 16.5 hours 21.5 hours (w/ saver) / 16.5 hours 17.2 hours (w/ saver) / 13.2 hours 17.2 hours (w/ saver) / 13.2 hours 10.3 hours (w/ saver) / 7.9 hours 10.3 hours (
IP Rating IP 57
Operating Temperature Range -22° F to 140° F (-30° C to + 60° C)
Frequency Stability ± 2.5 ppm
RF Input-Output Impedence 50 Ohms
Dimension (H x W x D) VX-821 Model 3.8 x 2.3 x 1.6 inches (96.5 x 57.5 x 40.6 mm) FNB-V129LI-UNI 3.8 x 2.3 x 1.7 inches (96.5 x 57.5 x 43.5 mm) FNB-V92LI (and IS) 3.8 x 2.3 x 1.6 inches (96.5 x 57.5 x 40.6 mm) FNB-V128LI-UNI 3.8 x 2.3 x 1.6 inches (96.5 x 57.5 x 40.6 mm) FNB-V87LIA 3.8
Weight (Approx.) 12.7 oz. (359 g) FNB-V129LI-UNI 14 oz. (396 g) FNB-V92LI (and IS) 12.6 oz (356 g) FNB-V128LI-UNI 12.3 oz. (348 g) FNB-V87LIA 13.2 oz. (373 g) FNB-127LI-UNI
Receiver Specification: measured by TIA/EIA-603
Sensitivity (12 dB SINAD) 0.25 µV typical
Adjacent Channel Sensitivity 75 dB / 70 dB
Intermodulation 75 dB / 70 dB
Spurious Image Rejection 75 dB
Audio Output 700 mW (Internal @ 16 Ohms 5% THD)
Transmitter Specifications: measured by TIA/EIA-603
Output Power 5 / 2.5 / 1 / 0.25 Watt
Modulation 16K0F3E, 11K0F3E
Conducted Spurious Emissions 70 dB
FM Hum and Noise 45 dB / 40 dB
Audio Distortion < 3% @ 1 kHz


Applicable MIL-STD

Standard MIL 810C MIL 810D MIL 810E MIL 810F
Low Pressure 500.1 500.2 500.3 500.4
High Temperature 501.1 / 1,2 501.2 / 1, 2 501.3 / 1, 2 501.4/ 1, 2
Low Temperature 502.1 / 1,2 502.2/ 1, 2 502.3/ 1, 2 502.4/ 1, 2
Temperature Shock - - - 503.4/ 1
Solar Radiation 505.1/ 1 505.2/ 1 Cat.A1 505.3/ 2 Cat.A1 505.4/ 1,2 Cat.A1
Rain 506.1/ 1 506.2/ 1 506.3/ 1,2 506.4/ 1
Humidity 507.1 / 1, 2 507.2/ 2, 3 507.3/ 2, 3 -
Salt Fog 509.1/ 1 509.2/ 1 509.3/ 1 509.4/ 1
Dust - 510.2/ 1 510.3/ 1 510.4/ 1,3
Vibration 514.2/ 8,10 514.3/ 1 Cat 10 514.4/ 1 Cat 10 514.5/Cat 20, 24
Shock 516.2/ 1 516.3/ 1 516.4/ 1 516.5/ 1


Operating Manuals
VX-820_820IS_OM_USA_EN_2015

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1.86 MB
VX-820E_OM_EU_ENG_2014-2

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1.74 MB
Spec Sheets - North America
Vertex Standard VX-820 Series Spec Sheet - North America_Feb 2014

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944.03 KB

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