Dependable Communications for Long-Term Reliability

VX-921

The VX-921 is always ready to respond with state-of-the-art engineering and a wide array of features, providing you with great value in its class.
Follow Vertex Standard On

Resistant to Extreme Environments

Water-resistant radios in the VX-920 series are built to submerge to a depth of 3 feet in water for up to 30 minutes. To ensure the quality of our waterproof walkie talkie, we tested them to meet military standards for ruggedness, as well as the IP57 ingress protection standard. Issues such as rain, snow, fire suppression spray and dust are never a problem for these portable radios.

Never Miss Important Calls

Equipped with DTMF paging and unmatched flexibility in scanning features, this handheld two-way radio will optimise your operations in a wide variety of environments. In addition to basic scan, this Vertex Standard radio also comes with Priority, Dual Watch, Follow-me, Follow-me Dual Watch and Talk Around scanning with a built-in programmable home channel function.

Meets Safety Standards

With just a push of a button on this Vertex Standard mobile radio, an emergency notification to alert for help will be sent to a designated channel. The two-way radio will also automatically switch and monitor the designated emergency channel. This portable handheld radio also includes Remote Listen, a feature that turns the radio on remotely when necessary to monitor what is happening in the vicinity.

Loud Audio for Noisy Environments

With a 700-mW audio output, the two-way radio ensures that you can hear critical information in the most needed situations.

Exclusive Auto-Range Transpond System - ARTS™

Always know your connection status. Only Vertex Standard radios are designed to inform you when you and another ARTS™- equipped 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.

Additional Features

  • 48 Channel capacity
  • Wide band coverage
  • Four Programmable keys
  • Programmable 3-position toggle key
  • Direct channel recall
  • RX/TX Battery power save
  • DTMF ANI
  • Stun / kill / revive (5-tone)
  • Lone Worker
  • 2-Tone encode and multiple 2-Tone decode
  • 5-Tone signaling
  • Auto-Range Transpond System (ARTS™)
  • Compander
  • Whisper
  • Minimum volume control
  • Clear voice and audio pitch control
  • 7-Colour LED call alert indicator
  • Radio-to-radio cloning
Dust protected Submersible (3 ft for 30 min)
MIL-STD 810 Rating
General Specification
VHF
UHF
Frequency Range 134 - 174 MHz 400 - 470 MHz
450 - 520 MHz
Number of Channels and Groups 48 and 3 Groups
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)
3000 mAh FNB-V129LI-UNI

3000 mAh FNB-92LI / FNB-V92LIIS

2300 mAh FNB-V128LI-UNI

2300 mAh FNB-V87LIA

1380 mAh FNB-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 (w/saver) / 7.9 hours
IP Rating IP 57
Operating Temperature Range -22ºF to +140ºF (-30ºC to +60ºC)
Frequency Stability ± 2.5 ppm
RF Input-Output Impedance 50 Ohms
Dimension (H x W x D) 5.3 x 2.3 x 1.6 in (133.0 x 57.5 x 40.5 mm) FNB-V129LI-UNI
5.3 x 2.3 x 1.7 in (133.0 x 57.5 x 43.5 mm) FNB-V92LI (and IS)
5.3 x 2.3 x 1.6 in (133.0 x 57.5 x 40.5 mm) FNB-V128LI-UNI
5.3 x 2.3 x 1.6 in (133.0 x 57.5 x 40.5 mm) FNB-V87LIA
5.3 x 2.3 x 1.4 in (133.0 x 57.5 x 35.0 mm) FNB-127LI-UNI
5.3 x 2.3 x 1.5 in (133.0 x 57.5 x 37.5 mm) FNB-V86LIA
Weight (Approx.) 14.8 oz (420 g) FNB-V129LI-UNI
16.1 oz (456 g) FNB-V92LI (and IS)
14.7 oz (416 g) FNB-V128LI-UNI
11.4 oz (323 g) FNB-V87LIA
15.3 oz (433 g) FNB-127LI-UNI
13.1 oz (370 g) FNB-V86LIA
Receiver Specification*
VHF
UHF
Sensitivity 12 dB SINAD 0.25 / 0.32 μV
Adjacent Channel Selectivity 75 / 70 dB
Intermodulation 75 / 70 dB
Spurious and Image Rejection 80 dB 75 dB
Audio Output 700 mW @ 16 Ohms 5% THD
*Measured by TIA/EIA-603
Transmitter Specification*
VHF
UHF
Output Power 5 / 2.5 / 1 / 0.25W
Modulation 16K0F3E, 11K0F3E
Conducted Spurious Emissions 70 dB
FM Hum & Noise 45 / 40 dB
Audio Distortion < 3 % @1kHz
*Measured by TIA/EIA-603
Accessories
  • MH-50D7A: Public Safety speaker mic w/toggle
  • MH-66A7A: Submersible noise cancelling speaker mic
  • MH-66B7A: Submersible speaker mic w/PF key & toggle
  • VH-121: 3-Wire mini lapel microphone surveillance kit
  • VH-131: 2-Wire earpiece, palm mic. with PTT
  • VH-111: Over-the-head dual-muff headset
  • VH-115L: Behind-the-head headset w/boom mic
  • FNB-V129LI-UNI: 3000 mAh Li-Ion battery
  • FNB-V92LI: 3000 mAh Li-Ion battery
  • FNB-V92LIIS: 3000 mAh Intrinsically safe Li-Ion battery
  • FNB-V128LI-UNI: 2300 mAh Li-Ion battery
  • FNB-V127LI-UNI: 1380 mAh Li-Ion battery
  • FNB-V86LIA: 1380 mAh Li-Ion battery
  • FBA-34: Alkaline battery case (holds 6 AA batteries)
  • VAC-UNI: Single unit charger for UNI batteries
  • VAC-6058: Multi unit charger for UNI batteries
  • VAC-921: Desktop rapid charger (non-UNI)
  • VAC-6920: 6-Unit rapid charger (non-UNI)
  • VCM-2: Vehicular charger kit for VAC-921
  • LCC-920: Leather case with swivel belt clip
Option Boards
  • FVP-25: Voice Inversion Encryption
  • 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