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VX-P820 P25 Portable Analog Radio Series

Smallest Submersible P25 Portable Radio

Includes APCO P25 interoperability combined with more advanced features not typically found in a radio of this size. Designed to perform in the most demanding and critical conditions, the VX-P820 Series gives you maximum radio performance for less in size and less in total cost of ownership.

Expanded Signaling

Supports selective calling, Talk Group IDs (TGID), Network Access Codes, Individual ID lists and Paging Group lists for flexible communications.

Secure Communications)

Options available to support both Advanced Encryption Standard (AES) and Data Encryption Standard (DES) as required by APCO Project 25. Additionally, multiple encryption keys can be stored in the radio.

Mixed Mode

Seamlessly switch between analog to P25 digital mode on each channel based on call type received and on programming for transmit.

Enhanced Voice Quality

Featuring the AMBE+2™ Vocoder, get exceptional voice quality in both digital P25 and narrow-band modes of operation. Suppresses background noise and improves clarity of radio transmission.

Connectivity Assurance

The RSSI indictor emits an audible alert when the receive signal strength drops to a level not suitable for reliable communications.

When Safety Counts - Never Be Alone

The VX-P820 P25 Portable Analog Radio Series has Emergency notification that will switch to a designated channel and send an emergency alert. The radios also include Remote Monitor which lets you monitor the situation happening near a target radio if someone is unresponsive.

Loud Audio for Noisy Environments

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

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.

Choose the Right VX-P820 P25 Portable Analog Radio to match your need:

VX-P821 P25 Portable Analog Radio:

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

VX-P824 P25 Portable Analog Radio:

  • 12 Character Alphanumeric Display 
  • 512 channels/ 32 groups
  • 7 custom-programmable keys
  • User set mode
  • Direct Channel recall
  • Caller ID Display
  • User selectable tone

VX-P829 P25 Portable Analog Radio:

  • 12 Character Alphanumeric Display 
  • 512 channels/ 32 groups
  • 9 custom-programmable keys
  • DTMF Speed Dial
  • Field Programmable
  • User set mode
  • Direct Channel recall
  • Caller ID Display
  • User selectable tone

Additional Features

  • Scan options: Priority, Dual Watch, Follow-me, Follow-me Dual Watch, Talk Around

P25 Digital Mode only

  • BCLO and TOT

Analog Mode only

  • RX/TX Battery power save
  • DTMF ANI
  • 2-Tone Encode and Multi 2-Tone Decoding
  • CTCSS/DCS Encode and Decode
  • Lone Worker
  • BCLO/BTLO and TOT
  • Auto-Range Transpond System (ARTS™)
  • Compander
  • Auto Pitch Control
  • MDC-1200® Encode (PTT ID, Emergency ID)
  • 7-color LED (2-tone mode)
  • Radio-to-radio cloning
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Technical Specifications

VHF UHF
General Specifications:
Frequency Range 134 - 174 MHz 380 - 450 MHz; 450-512 MHz
Number of Channels and Groups 512 / 32 Groups (VX-P824, VX-P829); 16 / 1 Group (VX-P821)
Power Supply Voltage 7.4 V DC ± 10%
Channel Spacing 12.5/20*/25* kHz
PLL Steps 1.25 / 2.5 / 5/ 6.25 kHz 5/ 6.25 kHz
Battery Life P25 Mode (5-5-90 duty) 3000 mAh FNB-V129LI-UNI / FNB-V129LIIS-UNI 2300 mAh FNB-V128LI-UNI 2300 mAh FNB-V87LIA 1380 mAhFNB-V127LI-UNI 1380 mAh FNB-V86LIA 19.7 hours (w/ saver) / 15.6 hours 16 hours (w/ saver) / 12.4 hours 16 hours (w/ saver) / 12.4 hours 9.6 hours (w/ saver) / 7.5 hours 9.6 hours (w/ saver) / 7.5 hours 18.7 hours (w/ saver) / 14.3 hours 15 hours (w/ saver) / 11.5 hours 15 hours (w/ saver) / 11.5 hours 9 hours (w/ saver) / 6.9 hours 9 hours (w/ saver) / 6.9 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-P821 Model 3.8 x 2.3 x 1.6 inches (96.5 x 57.5 x 40.6 mm) FNB-V129LI-UNI (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 x 2.3 x 1.4 inches (96.5 x 57.5 x 35.0 mm) FNB-127LI-UNI
Weight (Approx.) 14 oz. (396 g) FNB-V129LI-UNI 12.6 oz. (356 g) FNB-V128LI-UNI 12.3 oz. (348 g) FNB-V87LIA 13.2 oz. (373 g) FNB-127LI-UNI 10.9 oz. (310 g)FNB-V86LIA
Receiver Specification: measured by TIA/EIA-603
Sensitivity (12 dB SINAD) Digital 5% BER Digital 1% BER 0.25 µV 0.25 µV 0.35 µV 0.32 µV 0.32 µV 0.40 µV
Adjacent Channel Sensitivity 75 dB / 70 dB
Intermodulation 75 dB / 70 dB
Hum and Noise 46/ 40 dB
Audio Output 700 mW @ 16 Ohms 5% THD
Transmitter Specifications: measured by TIA/EIA-603
Output Power 5 / 2.5 / 1 / 0.25 Watt
Modulation Analog Digital 16K0F3E /11K0F3E 8K10FID / 8K10FIE
Spurious Emissions 70 dB
FM Hum and Noise (W/N) 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-P820_OM_USA_EN_2015-2

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1.83 MB
Spec Sheets - North America
Vertex Standard VX-P820 P25 Series Spec Sheet - North America_May 2014

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925.09 KB

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