OPERA
OPERA
OPERA
OPERA
OPERATING INSTRUCTIONS FOR
TING INSTRUCTIONS FOR
TING INSTRUCTIONS FOR
TING INSTRUCTIONS FOR
TING INSTRUCTIONS FOR
SERIES 5 BELT-PAK
SERIES 5 BELT-PAK
SERIES 5 BELT-PAK
SERIES 5 BELT-PAK
SERIES 5 BELT-PAK
TM
TM
TM
TM
TM
RADIO
RADIO
RADIO
RADIO
RADIO
I DESCRIPTION AND GENERAL INFORMATION
Your new Earmark, Series 5 Belt-Pak Radio provides you with
hands-free, FM communications to suit harsh working condi-
tions. Your radio contains Earmark’s latest innovations in
hands-free, wireless technology for tough environments like
high noise or Class A, protective equipment. VOX130
TM
provides self-adjusting VOX that responds only to the human
voice and not to machinery noise. The front mounted PTT button
is easy to find without looking for it. Simple external controls
mean you spend less time fussing and more time getting the job
done, quickly. The easy access Volume Control Knob makes it
easy to go from high noise to low noise and back again, without
interruption.
Earmark manufactures Belt-Pak radios in a variety of models.
Before going any further, please check the name plate label on
the back of the Belt-Pak and find out which of the models
below listed you have. Make certain your model number
matches the type of network in which you’ll be working.
MODEL
MODEL
MODEL
MODEL
MODEL
NETWORK DESCRIPTION
NETWORK DESCRIPTION
NETWORK DESCRIPTION
NETWORK DESCRIPTION
NETWORK DESCRIPTION
PDB-5
DUPLEX
DUPLEX
DUPLEX
DUPLEX
DUPLEX UNIT FOR USE IN TWO MAN DUPLEX
NETWORKS ONLY
PSB-5
SIMPLEX
SIMPLEX
SIMPLEX
SIMPLEX
SIMPLEX UNIT FOR USE IN SIMPLEX NETWORKS
PRB-5
DUPLEX REPEATER
DUPLEX REPEATER
DUPLEX REPEATER
DUPLEX REPEATER
DUPLEX REPEATER UNIT: USE WITH REPEATER BASE STATION
(TRBS-1/x)
PHB-5
HALF-DUPLEX
HALF-DUPLEX
HALF-DUPLEX
HALF-DUPLEX
HALF-DUPLEX UNIT FOR USE IN HALF-DUPLEX NETWORKS
PGB-5
REPEATING
REPEATING
REPEATING
REPEATING
REPEATING UNIT FOR USE AS TOUR MASTER OR
HALF-DUPLEX MASTER
®
EARMARK
EARMARK
EARMARK
EARMARK
EARMARK
1701 Stratford Ave., Stratford CT 06615
Telephone (203) 777-2130 www.earmark.com
OWNERS MANUAL
400068
C.
Duplex, Repeater, and Repeating Models
The VOX switch is on the top of the Belt-Pak / the PTT button is on the front. You can select
"Continuous Transmit" (VOX OFF, PTT ineffective) or "VOX with PTT Over-ride" (VOX ON,
PTT provides manual over-ride) as your two modes of operation.
D. Simplex and Half Duplex Model
The VOX switch is on the top of the Belt-Pak / the PTT button is
on the front. You can select "VOX mode" (VOX ON, PTT provides
manual over-ride) or "PTT MODEL" (VOX OFF, PTT must be
pressed to transmit) as your two modes of operation.
SPECIFICATIONS
GENERAL
Performance specifications are nominal unless otherwise specified and are subject to change without
notice.
General Frequency Range
72-76 MHz
Operation mode
Simplex, Duplex, or Repeating
Power Supply
3.6V NiMh internal rechargeable battery system/1800 mah
Charger
6vdc @500ma output into 3.5mm jack, 120 [email protected] input
Weight
Approximately 20.6 Oz.
Dimensions
6
1/
2
" x 3
1/
24
" x 2
3
/
8
"
'
System hum and noise
-50 dB
TRANSMITTER
RF Output
200 mw Simplex, 100mw all other modes
Spurious & Harmonics
-75 dB
Modulation
16 K0F3E
Frequency Stability
(-30° C to +50° C) .005%
Voice Compressor
Attack, <1 ms; Delay, 130 ms
VOX Threshold
6 dB below full modulation
VOX Characteristics
Attack, <1 ms; Delay, 750 ms
RECEIVER
Receiver Circuit
Dual conversion, 1st IF Frequency
10.7 MHz, 4 Pole Quartz Filter; 2nd IF 455 kHz, 4 Pole
Ceramic Filter
Sensitivity
0.4µV for 12 dB SINAD
Modulation Acceptance
15 kHz
Selectivity
30 kHz from center frequency -55dB
Spurious & Image
-47dB
Intermodulation Response
-70 dB
Frequency Stability
(-30° C to +50° C) .005%
APPROVALS AND AUTHORIZATIONS
APPROVALS AND AUTHORIZATIONS
APPROVALS AND AUTHORIZATIONS
APPROVALS AND AUTHORIZATIONS
APPROVALS AND AUTHORIZATIONS
FEDERAL COMMUNICATIONS COMMISSION
FEDERAL COMMUNICATIONS COMMISSION
FEDERAL COMMUNICATIONS COMMISSION
FEDERAL COMMUNICATIONS COMMISSION
FEDERAL COMMUNICATIONS COMMISSION
All Belt-Paks have been type accepted and certificated by the FCC for operation in Part 90 (Private Land
Mobile Services) in the 72-76 MHz band. All transmitters, including Repeater Stations operate in the 72-76
MHz band with a power of 100 mW and modulation characteristics 16K0F3E. Type approval numbers are
on each unit. FCC rules require licensing by the purchaser. Requests for application forms or
information may be obtained from the FCC, Gettysburg, PA 17325.
PTT
Button
REVISED 08/2015
A division of
REDCO AUDIO INC.
