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Guided Tour - CR277 Front Panel

1:  Antennas (Channels A and B)

 - The antenna mountings allow full rotation for optimum 

placement.  In normal operation, both Antenna A (the antenna on the left) and Antenna 

B (the antenna on the right) should be placed in a vertical position.  Both antennas can be 

folded inward for convenience when transporting the CR277.  See the “Setting Up and Using 

the Concert Series System” section on page 6 in this manual for information about antenna 

installation and positioning.

2:  RF (Radio Frequency) Level meter 

- This “ladder” display (similar to the VU bar meter used 

on audio devices) indicates the strength of the incoming radio signal.  When the “100%” segment 

is lit, the incoming RF signal is fully modulated and at optimum strength. When only the second 

most left-most “10%” segment is lit, the incoming signal is at just 10% of optimum strength.  If no 

segments are lit, little or no signal is being received. See the “Setting Up and Using the Concert 

Series System” section on page 6 in this manual for more information.

3:  Volume (Channel B) / Power switch 

- Use this to turn the CR277 power on and off. When 

the receiver is on, the Power LED is lit.  The control knob sets the level of the audio signal being 

output through the Channel B output jack on the rear panel (see #2 on page 4 in this manual).  

Reference level is obtained when the knob is turned fully clockwise (to its “10” setting).

4:  Audio PEAK LED

 -   When the LED is lit, the signal is overloading and the HT7's input Level 

adjustment must be attenuated.  See the “Setting Up and the Concert Series  System” section on 

page 6 in this manual for more information.

5:  Power LED 

- When the receiver is on, the red Power LED will illuminate.

6:  Volume control (Channel A) 

- This knob sets the level of the audio signal being output 

through the Channel A output jack on the rear panel (see #6  on page 4 in this manual).  

Reference level is obtained when the knob is turned fully clockwise (to its “10” setting).

Summary of Contents for Concert 277

Page 1: ......

Page 2: ......

Page 3: ...yright 2009 Samson Technologies Corp Printed January 2009 v1 Samson Technologies Corp 45 Gilpin Avenue Hauppauge New York 11788 8816 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 631 784 2201 www samsontech com ...

Page 4: ...n System Features 1 System Features 2 Guided Tour CR277 Front Panel 3 Guided Tour CR277 Rear Panel 4 Guided Tour HT7 5 Setting Up and Using the Concert Series System 6 8 Specifications 9 Concert Series Frequency Conversion Chart 10 ...

Page 5: ...m you have purchased operates in the HDTV free UHF frequency range and contains a CR277 dual channel receiver and two of our HT7 hand held microphone transmitters with the Samson Q7 dynamic capsule In this manual you ll find a detailed description of the features of the Concert Series Wireless system as well as a guided tour through all components step by step instructions for setting up your syst...

Page 6: ...ack making it easy to integrate into any traveling or fixed installation audio system It includes a pair of tuned antennas and provides both balanced and unbalanced outputs and continuously adjustable Volume and Squelch controls as well as an audio peak LED a six segment Audio level meter and a six segment RF level meter Built in companding noise reduction in all components for crystal clear sound...

Page 7: ...ts are lit little or no signal is being received See the Setting Up and Using the Concert Series System section on page 6 in this manual for more information 3 Volume Channel B Power switch Use this to turn the CR277 power on and off When the receiver is on the Power LED is lit The control knob sets the level of the audio signal being output through the Channel B output jack on the rear panel see ...

Page 8: ...at its factory setting See the Setting Up and Using the Concert Series System section on page 6 in this manual for more information 4 DC input Connect the supplied 15 volt 350 mA power adapter here using the strain relief as shown in the illustration below WARNING Do not substitute any other kind of power adapter doing so can cause severe damage to the CR277 and will void your warranty Using the s...

Page 9: ... the HT7 on or off to conserve battery power be sure to leave it off when not in use 4 Microphone Input Level control trim pot This input sensitivity control has been factory preset to provide optimum level for the particular microphone capsule provided with your Concert 277 system and so we recommend that this not be adjusted manually If necessary however you can use the supplied plastic screwdri...

Page 10: ...it counterclockwise and then slide it off 5 Place a fresh 9 volt alkaline battery in the transmitter battery holder taking care to observe the polarity markings Replace the bottom section of the microphone by sliding it on and then screwing it back on Leave the transmitters off for the moment 6 Make the physical cable connection between the CR277 output jack and the line or mic level audio input o...

Page 11: ...ched 10 If you hear distortion at the desired volume level first check to see whether the red Peak LED on the CR277 is lit If it is not make sure that the gain structure of your audio system is correctly set consult the owners manual of your mixer and or amplifier for details If the yellow Peak LED is lit do the following On the HT7 transmitter use the supplied plastic screwdriver to turn its Micr...

Page 12: ...t overall range available 13 When first setting up the Concert Series system in a new environment it s always a good idea to do a walk around in order to make sure that coverage is provided for your entire performance area Accordingly turn down the level of your audio system and turn on both the transmitter and receiver Then with the transmitter un muted restore the level of your audio system and ...

Page 13: ...tery life 12 hours Receiver CR277 Oscillation Type PLL De emphasis 50 µsec IF Frequency 10 7 MHz Antenna 1 4 Wavelength Rod In Out DC Inlet Balanced Output Unbalanced Output Display LED Receiver A B Green Power On Red Peak Yellow RF Level 5 pc Level Control Audio Level Volume Mute Level Control Operating Temperature 0 C 50 C Operating Voltage 12 Volts 10 Current Consumption 160 mA at all LED light...

Page 14: ...10 Concert Series Frequency Conversion Chart ...

Page 15: ...rference in a residential installation This equipment gener ates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful inter ference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television rece...

Page 16: ...Samson Technologies Corp 45 Gilpin Avenue Hauppauge New York 11788 8816 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 631 784 2201 www samsontech com ...

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