ARCHITECT’S & ENGINEER’S
SPECIFICATION
The Samson Concert Series IV VHF Wireless System shall
be of a single-channel, crystal-controlled oscillator type oper-
ating on selected frequencies from 174.6 - 213.2 MHz. The
System shall include a beltpack or handheld transmitter and a
receiver, and shall allow operation of at least thirteen simulta-
neous systems on separate channels. The transmitter and
receiver shall incorporate compander circuitry for noise
reduction and maximum dynamic range.
The receiver shall provide a balanced microphone-level
output on a male XLR-type connector and an unbalanced
microphone-level output on a 1/4″phone connector. The
unit shall have a 5 segment AF level meter indicating 10%,
25%, 75%, 100% and 125% of audio signal. The audio output
level shall be adjustable with a variable attenuator. The
receiver shall incorporate a power LED and dual LEDs for car-
rier indication. The receiver shall have an automatic signal
sensing squelch circuit with a variable attenuator. The receiv-
er shall incorporate Microprocessor True Diversity circuitry
for automatic antenna switching. The receiver shall use two
12 VDC powered 1/4-wave removable antennas on M-J con-
nectors. The receiver shall be powered by 115 Vac, 50/60 Hz
via a supplied 12 VDC adapter. 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 19″(480 mm) wide, 3.8″(96 mm) deep
and 1.7″(44 mm; 1 rack space) high. Weight of the receiver
shall be 3 lb. (1.4 kg).
The beltpack transmitter shall provide either a micro-
phone-level input on a Switchcraft TA3F P3-type connector
or an instrument-level input on a 1/4″phone connector. The
beltpack audio input sensitivity or handheld microphone out-
put level shall be adjustable with a variable attenuator. The
transmitter shall provide a mute switch. The transmitter shall
incorporate a battery strength LED and shall use an internal
dipole antenna. The transmitter shall be powered by a 9 V
alkaline battery and shall provide a nominal battery life of not
less than 18 hours. The transmitter type shall be accepted
under appropriate FCC rules. Dimensions of the beltpack
transmitter shall be 2.6″(65 mm) wide, 4.3″(110 mm) deep
and .9″(22 mm) high. Weight of the beltpack transmitter
shall be 3.1 oz. (90 g). The System shall carry a three-year
warranty.
The System shall be a SAMSON CONCERT SERIES IV VHF
CONCERT SERIES IV SPECIFICATIONS
RF Frequency Range: 173.6 - 216.2 MHz
Frequency Response: 40 Hz to 15 kHz ±3 dB
Squelch Sensitivity: 18 dBu
Antenna Terminals (Receiver) 50 Ω, M-J input connector
powered 12 VDC 160 mA max.
Antenna Type:
Receiver: 1/4 λrod
Transmitter (HT4): Internal dipole
Transmitter: (CT4G/CT4L): External (Gtr/Mic cable)
Antenna Gain: < 2.14 dB
AF Level Meter: 10%, 25%, 75%, 100%, 125%
Bandwidth Selectivity: ± 150 kHz @ -60 dB
Audio Outputs (Receiver):
Unbalanced (-10 dB, 5 k 1/4′′ phone type connec-
tor)
Balanced (-30 dBm, 600 Ω, XLR type connector)
Input Power (Receiver): 11 - 13.2 Vdc 1.9 W, 160 mA
Maximum Audio Input Level
Transmitters: -30 dB adjustable (∆f=±15 kHz)
RF Sensitivity: 21 dBu @ s/n 55 dB
Signal To Noise Ratio: > 94 dB (IHF-A weighted)
Dimensions
Receiver (w/o antennas): 19″(w) x 3.8″(d) x 1.7″(h)
480 mm (w) x 96 mm (d) x 44 mm (h)
Transmitter (CT3L/CT3G) 2.6″(w) x 4.3″(d) x .9″(h)
65 mm (w) x 110 (d) x 22 (h)
Transmitter (HT3): varies with mic type
Weight:
Receiver (including antennas): 3 lb. / 1.4 kg
Transmitter (CT3L/CT3G): 3.1 oz. / 90 g
Transmitter (HT3): varies with mic type
Specifications subject to change without notice. © 1998 SAMSON
