Samson Technologies was founded 20 years ago when they introduced some of the first affordable wireless technology ever. The latest line of wireless gear in that tradition: Concert 77. UHF quality diversity wireless that anyone can afford.
CR77 Wireless Receiver
This true-diversity half-rack unit with PLL frequency control works with all Concert 77 wireless systems. Rugged, durable and crystal clear with incredible range. UHF (Ultra High Frequency) means clearer frequencies with less interference. Diversity reception means no dropouts. Concert 77 represents sophisticated wireless technology at great prices.
CT7 Belt-Pack Transmitter
For use with all other Concert 77 Systems. This compact and simple-to-use belt-pack has on/off and level control.
QL1 Microphone
Samson QL1 Lavelier with P3 connector is for use with Samson transmitters with P3 connectors used with UM1 and VM1 micro systems, VLX, VLXTD, VHF, VHFTD, Series One, Concert IV, Synth 32 and Micro 32 systems.
Technical Info
Receiver (CR77)
Type of Reception: Single Superheterodyne, True Diversity
Oscillation Type: Synthesized PLL Frequency Control
D-emphasis: 50 μsec
IF Frequency: 10.7 MHz
Antenna: 1/4 Wavelength Rod
In/Out: DC Inlet, Balanced Output, Unbalanced Output
Display (LED): Antenna A/B (Green), Power On (Red), Peak (Yellow), RF Level (5 pc)
Level Controls: Volume, Squelch
Operating Voltage: 12 Volts + 10 %
Current Consumption: 160 mA (at all LED lights)
Receiving Frequency Range: 801 - 805 MHz
Sensitivity: 18 dBμ @ THD 2%
Squelch Sensitivity: 0 - 40 dBμ (Adjustable)
Selectivity: ± 150 kHz (AF Out Ratio -60 dB)
S/N Ratio (Overall): 90 dB (w/ IHF-A fi lter)
Residual Noise: 90 dBv (w/ IHF-A fi lter)
Band Mute: ± 50 kHz / ± 100 kHz (RF IN: 46 dBu EMF)
AF Frequency Response: 50 Hz - 15 kHz (± 3 dB overall)
Audio Output Level - Unbalanced: 0 dBv
Audio Output Level - Balanced: -20 dBm (Line), -40 dBm (Mic) Switch
Selectable
Audio Output Impedance/Unbalanced: 5 k Ohms
Audio Output Impedance/Balanced: 600 Ohms
Dimensions: 8.5 in. (w) x 1.75 in. (h) x 4.6 in.(d) 216 mm (w) x 44 mm (h) x 116 mm (d)
Weight: .75 lb / 340 g
Transmitter (CT7)
Oscillation Type: Synthesized PLL Frequency Control
Pre-emphasis: 50 μsec
Antenna: 1/4 Wave Length Wire (permanently attached)
Input: TB3M QG (Mini XLR) Connector
Maximum Input Level: 3 V p-p
Battery: Duracell MN 1604 9-volt alkaline
Switches/Controls: Power On/Off, Audio On/Off, AF Level
Display (LED): Battery Low/Mid/High (<5.3V/5.3-7V/7V)
Operating Voltage: 9 Volts +20%/-40%
Current Consumption: 47 mA
RF Power: 10 mW
Frequency Stability: + 20 kHz
Spurious Ratio: 2.5 nW
Deviation: 20 kHz (16.5 kHz-23.5 kHz)
T.H.D. (Typical): 0.5%
AF Frequency Response: 50 Hz - 15 kHz (± 3 dB overall)
Battery Life: 12 Hours
Because this item is used at your mouth or ear, it cannot be returned once opened due to health reasons. 
