Summary of Contents for freedomike R170
- Page 1 R170 RECEIVER OPERATING INSTRUCTIONS and trouble-shooting guide LECTROSONICS, INC. Rio Rancho, NM...
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Page 2: Table Of Contents
Outputs for high or low impedance, balanced or un-balanced audio signals via 1/4", XLR and RCA jacks are provided. The versatile audio output section makes the R170 ideal for applications where multiple audio feeds are required, such as providing PA system feed, "overflow room"... -
Page 3: General Description
GENERAL DESCRIPTION The R170 receiver utilizes a two stage quartz crystal oscillator to assure that the frequency will not drift. Custom made high Q toroidal filters in the RF and IF stages reject interfering adjacent signals and provide over 100 dB of image rejection. Dual gate MOS FET semi-conductors in the RF amplifier and mixer provide excellent sensitivity and resistance to RF overload. -
Page 4: Receiver Front Panel
RF lamp -- Lights when the transmitter is turned on. If the carrier signal is too weak to produce a quality signal, the lamp will go out. POWER lamp -- Lights when the receiver is turned on. Figure 1 - R170 Front Panel... -
Page 5: Receiver Rear Panel
The output level of this RCA jack is not affected by the front panel VOLUME ATTENUATOR control. AUDIO INPUT (mixing bus) AUDIO IN -- RCA phono jack input accepts external tape deck or other audio source; mixes audio with receiver output. Also allows "stacking" multiple receivers (see page 8). Figure 2 - R170 Rear Panel... -
Page 6: Use And Placement
The high sensitivity of the R170 minimizes dropouts in multi-path environments, since it will continue to operate with a usable audio signal to noise ratio even with weak RF signal inputs. -
Page 7: Operating Instructions
OPERATING INSTRUCTIONS SET UP AND OPERATION SEQUENCE 1) CONNECT POWER CORD -- Plug the connector into the jack labeled "12 VDC ". Insert the plug fully into the jack. 2) ATTACH AND EXTEND THE ANTENNA FULLY 3) CONNECT THE AUDIO CABLE/S A. For playback from a tape player, plug into "AUDIO IN"... -
Page 8: Multi-Channel Audio Mixing
MULTI-CHANNEL AUDIO MIXING The R170 receiver offers a unique feature that eliminates the necessity of using an external audio mixer in multi-channel applications. When using two or three R170 receivers together, the LINE OUT and AUDIO IN jacks provide "unity gain" mixing of the audio signals. This means that the audio output of the receivers may be mixed together through these connectors without affecting the volume levels. -
Page 9: Troubleshooting
TROUBLESHOOTING Before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you follow these steps in the sequence listed. SYMPTOM POSSIBLE CAUSE TRANSMITTER BATTERY LED OFF 1) External LED is turned off. Check internal slide switch. -
Page 10: Replacement Parts And Accessories
REPLACEMENT PARTS and ACCESSORIES Part No. Description CH-12 110 Volt AC adapter for R170 receiver A-185PL Swivel-mount antenna with PL259 connector A-185Coax Remote coaxial cable antenna CCFP Molded carrying case for wireless systems MM-18 18" male RCA to male RCA cord for "stacking" receivers (see page 7) -
Page 11: Service And Repair
SERVICE AND REPAIR If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check out the inter-connecting cords and then go through the TROUBLE SHOOTING section in the manual We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop attempt anything other than the simplest repair. -
Page 12: Specifications And Features
SPECIFICATIONS AND FEATURES R170 RECEIVER Operating frequencies: 150 to 216 MHz crystal controlled Sensitivity: 1.0uV for 20dB SINAD 2.0uV for 50dB S/N ratio Signal/noise ratio: 96 dB flat; 100 dB A-weighted Squelch quieting: greater than 100 dB AM rejection: -40 dB (10uV to 0.1 Volts) ±15kHz... -
Page 13: Limited One Year Warranty
LIMITED ONE YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been abused or damaged by careless handling or shipping. This warranty does not apply to used or demonstrator equipment.
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