Note - Vertex Standard VX-920 Series Operating Manual

In order to maintain the specified water integrity performance, periodic maintenance is recommended.
Should the radio sustain a severe shock (e.g. if it is dropped), the water integrity may be compromised,
requiring service. Should this occur, contact your Authorized Vertex Dealer or Vertex Standard USA, Inc.
IS version of the VX-920/-970, equipped with any of the following optional units, meets the requirements of
ANSI/UL 913 6th Edition for Class I, Division 1, Groups A-D; Class II, Groups E-G; and Class III for
hazardous locations.
Battery Packs:
Speaker Microphone:
Headset/Earoice Microphone:
Encryption Unit:
ANI Unit:
Voice Storage Unit:
Multi Band Receiver Unit:
Substitution of components may impair intrinsic safety. Installation of FNB-V92LIIS does NOT convert
normal radio into IS version.
Important Notice for North American Users Regarding 406 MHz Guard Band
The U.S. Coast Guard and National Oceanographic and Atmospheric Administration have requested the
cooperation of the U.S. Federal Communications Commission in preserving the integrity of the protected
frequency range 406.0 to 406.1 MHz, which is reserved for use by distress beacons. Do not attempt to
program this apparatus, under any circumstances, for operation in the frequency range 406.0 - 406.1 MHz if
the apparatus is to be used in or near North America.
Warning - Frequency band 406 - 406.1 MHz is reserved for use ONLY as a distress beacon by the US
Coast Guard and NOAA. Under no circumstance should this frequency band be part of the
preprogrammed operating frequencies of this radio.
VX-920/-970 S O
ERIES PERATING
N
OTE
Intrinsic Safety (IS) Information
FNB-V92LIIS
MH-50 , MH-66
D7A A7A
VH-111, VH-121, VH-131
FVP-35, FVP-36
VME-100, VMDE-200
DVS-5
SRX-3, SRX-4
M
ANUAL
, MH-66
B7A
1