Telex Operating Instructions USR-100
Table of Contents General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . USR-100 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Frequency Agility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dual Squelch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Posi Phase Diversity . . . . . . . . . . . . . .
Table of Contents (continued) SH-100 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Test Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel Select Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . Microphone Gain . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION The Telex Model USR-100 Receiver and associated Transmitters is a 100 Channel, frequency-selectable full diversity system operating within the frequency range of 668.0 to 746.0 MHz on specific pre-set frequencies. Systems consisting of the USR-100 and its companion transmitter are capable of operating on at least 5 frequencies in a TV channel simultaneously, sometimes more depending on the individual venue.
Posi Phase Diversity The USR-100 receiver utilizes Telex’s patented Posi Phase auto diversity circuit. Unlike other types of diversity which receive with only one antenna at a time, Posi Phase utilizes both antennas at all times. This results in a stronger signal from the microphone for cleaner audio and greater range.
Displays The 7 Segment LED channel display already mentioned (00 to 99). 2. A 5 segment LED light array for AF, that aids in setting microphone gains and monitoring receiver microphone and line level outputs. Light numbers 4 and 5 have a Peak Hold feature. 3. A 5 segment LED light array for RF, that aids in checking the transmitter and monitoring for the possibility of initial interference. 4. A 2 segment LED array that indicates diversity action and antenna configuration.
USR-100 Receiver Specifications RF Frequency Range. . . . . . . . . . . . . . . 668.0 to 746.0 MHz Channels . . . . . . 100 (0-99) (within TV Ch. 47/48 & 58/59) R.F. Stability . . . . . . . . . . . . . . . . . . . . . . . . 0.005% or better Modulation Type . . . . . . . . . . . . . . . . . FM, 40 KHz nominal Type. . . . . . . . . . . . . . . . . . Single Conversion, 10.7 MHz I.F. I.F. Bandwidth. . . . . . . . . . . . . . . . . 230 KHz at -3 db points. Image Rejection . . . . . . . . . . . . . . . . . . . .
Model SH-100 Transmitter Specifications Frequency of operation . . . . . . . . . 668.000 to 746.000 MHz. (Current models operate in 2 frequency ranges.) 668.000 to 679.500 MHz and 734.100 to 745.500 MHz. Number of Channels . . . . . . . . 100 User Selectable Channels in each range. Power Output (Terminated). . . 10 mW, High switch setting, 1.0 mW Low. Antenna . . . . . . . . . . . . . . . . . . . . . . . . Permanently attached. Modulation . . . . . . . . . . . . . . . .
Model LT-100 Transmitter Specifications Frequency of operation . . . . . . . . . 668.000 to 746.000 MHz. (Current models operate in 2 frequency ranges.) 668.000 to 679.500 MHz and 734.100 to 745.500 MHz. Number of Channels . . . . . . . . . . . . . . . . 100 User Selectable Channels in each range. Power Output (Terminated). . . . 10 mW, High switch setting, 1.0 mW Low Antenna . . . . . . . . . . . . . . . . . . . . . . . . Permanently attached Modulation . . . . . . . . . . . . . . . . .
Figure 1 Front Panel Power Switch: When turned on, the channel display illuminates and one of the diversity lights will come on. Channel Select Buttons: Push once to increase display by one. Push and hold to increase display more than one. Left button changes “10’s”, Right button changes “1’s”. Channel Lockout: To enable/disable Channel Lockout function, press both channel select buttons simultaneously and hold them in until the channel readout stops blinking.
Figure 2 Rear Panel Antenna Jacks: Two antenna jacks for posi phase diversity reception. Attach an antenna to each jack. Audio Output: XLR type jack connects to audio sound system (Amplifier/Mixer). Pin 1 ground, Pin 2 +, Pin 3 -. Audio Adjust: Screwdriver adjustable potentiometer, controls audio output. Use supplied screwdriver to adjust to desired level. Audio Level: Set switch to match the input characteristics of your audio sound system. Power Jack: For external AC wall supply adapter (supplied).
Receiver Set-up Connect the supplied AC power adapter to an AC outlet supplying 105 to 125 volts AC, 60 Hz. The 230 volt export model should connect to an AC outlet supplying 210-240 VAC, 50-60 Hz. Connect the USR-100 to your equipment: Insert a 3 pin female “XLR” audio connector and cable into the Audio Output receptacle on the rear of the USR-100. Insert the other end of the audio cable into the input of your Mixer/Amplifier.
Bottom View Figure 4 SH-100 -10-
SH-100 Power Switch: Located on the bottom of the handle. Battery Test Button: Press to check the remaining life of the batteries. Battery Meter: The number of segments that light when the Battery Test Button is pushed indicate the approximate time of battery life remaining.
Top View Side View Back View Figure 5 LT-100 LT-100 Power Switch: Located on the top of the case. Battery Test Button: Press to check the remaining life of the batteries. Battery Meter: The number of segments that light when the Battery Test Button is pushed indicate the approximate time of battery life remaining. Microphone Connector: wired as follows: Pin 1 Ground Pin 2 Mic Pin 3 +5 volt bias Pin 4 +5 volt bias fed through a 3K ohm resistor for 2 wire electrets.
Battery Meter Number of Lights 4 3 2 1 1 - Time Remaining High Power (alkaline batteries, intermittent usage) 3 grn 1 red 2 grn 1 red 1 grn 1 red 1 red red flashing 4 lights flashing 9 hours or less 7 1/2 hours or less 6 hours or less 2 hours or less 1/2 hour or less batteries almost deadwill not transmit Time Remaining Low Power (alkaline batteries, intermittent usage) 12 hours or less 9 hours or less 7 hours or less 2 1/2 hours or less 1/2 hour or less batteries almost deadwill not transmit Channe
System Set-Up NOTE: Whe employing two or more wireless microphones, the transmitters should be a minimum of 10-15 feet away from the receiver(s) to prevent “front-end” overload. Turn on the receiver. Set the Channel to the number desired on both the transmitter and receiver. Check the RF lights. If any light except light #1 is on, this indicates interference and another channel should be selected. Turn on the transmitter.
Remote mounting antennas will increase the effective reception range when appropriately positioned. The two 1/4 wave antennas supplied are not ground independent and therefore not appropriate for remote mounting. See the accessories section of this manual for remotemountable antenna options. The diversity antenna system operates most efficiently when the two antennas are separated as much as possible The antennas should be mounted so that they are at least 6 feet (2 meters) apart for best results.
Figure 7 Antenna Placement with Accessory Brackets and Cables If possible, do not mount the brackets on a wall. See Figure 7 for bracket and antenna placement. Antenna Connection Attach the two antenna cables to the back of the USR-100. Be sure the connectors are tightened securely. Route the cable to the antennas and attach in the same manner.
Installing Rack Mounts The USR-100 is supplied with rack mounts for both double and single mounting in a 19" equipment rack. For single mounting, the long and short rack “ears” are used. For dual mounting, use the short “ears and the mid brackets from two USR-100’s. Item No.
Double Mounting: Align the mid brackets (Item No. 2) with the holes on the adjacent sides of each unit. Install the previously removed screws. Insert an additional screw (Item No. 4 provided in the parts pack) into the remaining holes. Tighten all screws securely. Place the two assemblies side by side with the mid brackets together. (The left bracket should fit above the right so that the countersinks are visible.) Install 4 flat head screws (Item No. 5) Tighten all screws securely.
ACCESSORIES AND REPLACEMENT PARTS Model CLA-X - 1/2 Wave Antenna - for remote mounting Model Part No. Band Color CLA-1 CLA-2 CLA-3 CLA-4 CLA-5 CLA-6 870658-1 870658-2 870658-3 870658-4 870658-5 870658-6 Blue Yellow Red White Green Orange Frequency 520-564.9 MHz 565-614.9 MHz 615-659.9 MHz 660-689.9 MHz 690-724.9 MHz 725-760 MHz Model AB-2 Combination Antenna Bracket with hardware and 10 foot (3 meter) coaxial cable TNC Connectors. Use with Model CAL-X Antennas. Order No.
Model ALP-450 450-900 MHz Directional Log Periodic Antenna includes mounting hardware and 10 foot (3 meter) coaxial cable with TNC Connectors. 9 1/2" long x 11" high. Unique forward coverage pattern increases signal gain up to 5 db. Covers all frequencies and increases range. Order No. 71147000 Model UAD-2 Four Way Antenna Splitter Order No. 71253000 Feeds four USR-100’s with just two antennas. Also supplies power. Eliminates 3-power supplies and 6 antennas Front Connector Mounting Kit Part No.
FCC INFORMATION The TELEX Model USR-100 receiver is authorized under Part 15 of the Federal Communication Commission. Licensing of TELEX equipment is the user’s responsibility and licensability depends upon the user’s classification, and frequency selected. TELEX strongly urges the user to contact the appropriate telecommunications authority before ordering and choosing frequencies other than factory preset frequencies.
CUSTOMER SERVICE INFORMATION If your receiver or transmitter should need servicing under the warranty, please contact: Customer Service Department TELEX COMMUNICATIONS, INC. 8601 East Cornhusker Highway, P.O. Box 5579, Lincoln, Nebraska 68505-5579 U.S.A. Phone: (402) 467-5321 or 465-7021 FAX: (402) 467-3279 All claims of defect or shortage should be sent to the above address.
TELEX COMMUNICATIONS, INC. 8601 East Cor nhusker Highway w P.O.
