The UH6 Handheld Transmitter: The UT6 Beltpack Transmitter:
The Samson UHF Synth Six True Diversity Wireless
System shall be of a multi-channel, crystal-controlled PLL
synthesized oscillator type operating on 96 selected UHF
frequencies in 2 bands: 778 – 794 MHz (“X” frequencies)
and 794–810 MHz (“Standard” frequencies). The System
shall include a beltpack or handheld Transmitter and a
dual-channel Receiver, and shall allow operation of up to
22 simultaneous systems on separate channels at high
power and 96 simultaneous systems at low power utiliz-
ing both frequency bands. The Transmitter and Receiver
shall incorporate dbx
®
compander circuitry for noise
reduction and maximum dynamic range.
The dual-channel Receiver shall provide two bal-
anced microphone-level outputs on male XLR-type con-
nectors and two unbalanced microphone-level outputs
on 1/4″ phone connectors, and shall provide an output
mixing switch. The audio output level shall be adjustable
with a variable attenuator and rotary controls shall be
provided for selecting group and channel. The Receiver
shall incorporate an LCD showing status of RF, AF chan-
nel, title and monitors rear panel settings such as anten-
na attenuation, audio output level and output switch set-
tings. The Receiver shall have a tone squelch circuit
operating at 38.4 kHz. The Receiver shall incorporate
True Diversity circuitry for automatic antenna switching.
The Receiver shall use two 9 Vdc powered 1/2-wave
removable antennas on BNC connectors. The Receiver
shall be powered by 100–250 Vac, with automatic cur-
rent and voltage sensing circuitry. The Receiver shall be
notified under FCC rules, Part 15, and DOC certified
under RSP 121. The Receiver shall be of a rack-mount
type. Dimensions of the Receiver shall be 18.85″ (479
mm) wide, 8.38″ (213 mm) deep and 1.7″ (44 mm; 1
rack space) high. Weight of the single-channel Receiver
shall be 5.29 lb. (2.4 kg).
The beltpack Transmitter shall provide a micro-
phone-level or instrument-level input on a Hirose P6
multi-pin input connector, with a selectable input source
switch. The beltpack audio input sensitivity or handheld
microphone output level shall be adjustable with a vari-
able attenuator. The Transmitter shall have a mute switch
and selectable group and channel switches. The
Transmitter shall incorporate LEDs for battery strength
and frequency unavailability. The beltpack Transmitter
shall provide +48 V Phantom Power for operation of
condenser microphones. The beltpack Transmitter shall
use a rotatable 1/2 wave antenna and the handheld
Transmitter shall use an internal antenna. The
Transmitter shall be powered by a 2 AA alkaline batter-
ies. The Transmitter type shall be accepted under appro-
priate FCC rules. Dimensions of the beltpack Transmitter
shall be 2.6″ (66 mm) wide, 4.3″ (110 mm) deep and
0.8″ (22 mm) high. Weight of the beltpack Transmitter
shall be 4.9 oz. (141 g). The System shall carry a three-
year warranty.
The System shall be a SAMSON UHF SYNTH SIX
TRUE DIVERSITY WIRELESS SYSTEM.
ARCHITECT’S & ENGINEER’S SPECIFICATION
