Cross Technologies 455T Specifications

Model 455R, 455TComposite MTS/BTSCSubcarrier Receiver and TransmitterOperators Manual Rev 2.2 6/25/98Data, drawings, and other material contained here

1-4. GENERAL DESCRIPTION.The 455 Composite Subcarrier System is engineered to provide a transparent path for the complete MTS/BTSC composite signal

Section 2 - INSTALLATION2-1. INTRODUCTION. This section contains instructions for installing and interfacing the Model 4

2-4. Power Requirements.The Model 455 requires a power source of 105V-130V 50-60Hz or 210V-250V 50-60Hz. Power consumption is:Transmitter...

Fig. 2.1 AC Connector2-6. Power Cable.In accordance with safety standards, this equipment is supplied with a three con

ALMNOCOMNCRMTBTSCCOMPOSITEBASE BANDLOOP THRUBTSCCOMPOSITE STEREO SAP PROI NPUTSIN (XMT)OUT (RCV)MONITOR INPUT OUTPUTFIGURE 2-2 455 Rear Panel2-10.

75Ω. In multiple- unit operation, the input of units after the first is connected to the output of the preceding unit.Output - Composite output

Composite Monitor - This output connector provides a monitor point for the combined modulation signal resulting from the various input s

2-14. REPACKAGING.If the equipment is to be returned to Cross Technologies for any reason, care should be taken in packaging. Call Cross Technologie

Section 3 - OPERATION3-1. INTRODUCTION.This section describes operation of the front panel controls. There are three operator switches, the

3.The software version will be displayed. __________________ _Software Rev #.#_ ___

Model 455R, 455T Composite MTS/BTSC Subcarrier Receiver andTransmitter Operators Manual TABLE of CONTENTSSECTION TITLE

Pressing the Up/Down switch (in either direction) will toggle the display to: __________________ _MO

4.Operate the Program/Execute switch. The display will now show the deviation setting (WIDE/NARROW): __________________ _________

Receiver: CXR ALM upon a drop in incoming carrier level beyond the squelch setting or the RF/IF section of the receiver is defective.

455 Operation Manual Page 23 6/23/98 Audio is noisy, but Transmission path noise may sounds normal in other be excessive. Check other r

455 Operation Manual Page 24 6/23/98 Composite level and/or Verify correct equipment carrier deviation too impedances and terminations. h

455 Operation Manual Page 25 6/23/98 Receiver LCD display Any of the situations de- indicates an AFC alarm. scribed above for a CXR

Section 4 - ADJUSTMENTS and OPTIONS4-1. INTRODUCTION.This section describes operator adjustments and the selection of th

4-3. TRANSMITTER FRONT PANEL ADJUSTMENTS.NOTE:Prior to setting levels be sure transmitter is ON and set to proper frequency. See Section 3.4-4. Leve

measuring instrument has a low impedance (i.e., 75Ω or 50Ω) it is necessary to connect the instrument to an isolated monitor point in order to

The front panel DEV adjustment is provided to compensate for minor variations in incoming composite signal strength, and is not intended to p

TABLE of CONTENTSSECTION TITLE PAGE3 OPERATION ...

generator to provide a 10.396 kHz test signal at a 100% modulation level at both inputs. The pilot should be switched off for this procedure, and

4-8. Squelch Adjustment.A.Tune the receiver to a compatible active channel. Presence of an Alarm indication and a CXR ALM display may indicate o

4-9. Composite Level Adjustment.A.Connect a high impedance AC Voltmeter across the BTSC Composite Out line. The audio equipment that will no

4-12. Input Highpass Filter.The 455 Receiver input circuitry includes a highpass filter that is designed to prevent high level video signals at the

WARRANTYThis Cross Technologies product is warranted against defects in material and workmanship for one year from the date of shipment. During this

OPERATORS SAFETY CONSIDERATIONSGeneralThe general safety information in this documentation is for operating and servicing personnel. Specific warning

OPERATORS SAFETY CONSIDERATIONS(Cont'd.)____________ WARNING ____________Danger From Loss of Protective GroundUpon loss of the protective ground

Section 1 - GENERAL INFORMATION1-1. INTRODUCTION.This manual contains information necessary for the installation, operati

TABLE 1-1 - SPECIFICATIONSSystem Characteristics: Subcarrier frequency range...Frequency agile from 1.0 MHz to 9.99

TABLE 1-1 - SPECIFICATIONS (Cont'd.) Subcarrier output level.....75 to 300 mV P/P (adj.) Output im