WARSANIS 1401FM USER MANUAL QUICK INSTALLATION AND SETUP MANUAL WARSANIS MODULATION PROCESSOR March 2001 MODEL 1401FM Wijde Wade 5 3439 NP Nieuwegein The Netherlands Tel. 31 (0)30 2322209 Fax. 31 (0)30 2304959 EMAIL. info@warsanis.nl http://www.warsanis.
WARSANIS 1401FM USER MANUAL Manual Rev.2.2 Part number: M1401FM0397 8/2001 Warsanis Productions.
WARSANIS 1401FM USER MANUAL TABLE OF CONTENTS Page 1 2 Contents Table of contents Table of contents, continued 3 Warranty Introduction 4,5 Short description of the Warsanis 1401FM 6 Installation General Installation in the studio Installation at the transmitter site 7 Changing the input sensitivity Analog Inputs and outputs Phase rotator Analog Output level Baseband Composite outputs Baseband Composite output level Changing the composite output impedance SCA Input 19kHz output 19kHz crystal oscill
WARSANIS 1401FM USER MANUAL TABLE OF CONTENTS, CONTINUED Page 13 Contents The Warsanis 1401FM in harmony with other equipment Mic processing Leveler Other effect equipment Stereo enhancers Equalizers Audio exciters Bass enhancers 14 Test and alignment procedures Power-up test Input stage test Phase rotator test Leveler test Crossover test Multiband test Multiband clipping test 15 16 Loudness clipping test Output stage test Stereo Generator test 17 Troubleshooting Lost of modulation Buzz Whistle Gro
WARSANIS 1401FM USER MANUAL WARRANTY Warsanis Productions warrants its products to be free from any defects in workmanship for a period of one year. This warranty will not be void if the user modifies a Warsanis product. However, broken wires, broken PC board circuit traces, burned areas and broken components resulting from improper procedures/ handling are not covered under warranty.
WARSANIS 1401FM USER MANUAL SHORT DESCRIPTION OF THE 1401FM The phase scrambler (rotator) makes peaks more symmetrical to fully benefit the symmetrical peak overload characteristics of the FM medium. Voice and some music can contain asymmetrical waveforms that can overload the processing circuit. By removing asymmetrical waveforms from the audio, larger amounts of gain reduction can be achieved with less distortion. A 15kHz low pass filter prevents the AGC for >out of the band= frequencies.
WARSANIS 1401FM USER MANUAL The Stereo generator (option) uses a digitally controlled circuit to produce a high quality composite signal. The Stereo generator has two outputs both with independent output amplifiers and level controls. A SCA (subcarrier) input is available for RDS and a 19kHz (TTL) output for syncronisation. This stereo generator replaces all low pass and high pass filters, overshoot filters, pre-emphasis and the stereo generator of the transmitter or STL link.
WARSANIS 1401FM USER MANUAL INSTALLATION GENERAL We suggest leaving one rack space vacant between the units. When several units are in a common rack, we recommend using one common power supply-strip to minimize hum and ground loop problems. INSTALLATION IN THE STUDIO The Warsanis 1401FM should always be the last device in the audio processing chain! * Disable all low pass and high pass filters, input transformers and limiters/clippers placed after the Warsanis 1401FM.
WARSANIS 1401FM USER MANUAL CHANGING THE INPUT SENSITIVITY (Skip this step if you want an input sensitivity of -10 to +10dBu) The Warsanis 1401FM is shipped with the input sensitivity set to -10 to +10dBu. This is the most common setting for professional broadcast equipment. Move the four jumpers (J4, J6, J7 and J8) on the output board of the processor to the right (See fig. Boards) in order to change the input sensitivity from -20 to -10dBu.
WARSANIS 1401FM USER MANUAL CHANGING THE COMPOSITE OUTPUT IMPEDANCE The Warsanis 1401FM is shipped with a composite output impedance op 0ohm. This is the common impedance for most situations. If a 75ohm output impedance is required you have to change two jumpers on the Stereo Generator PCB. Make sure you have disconect the power before changing the jumpers. The two composite outputs can be independently switched for 0ohm or 75ohm operation. For more information see Fig.
WARSANIS 1401FM USER MANUAL SETUP & OPERATION The Warsanis 1401FM is very easy to a setup. You will need 15 to 30 minutes to set up the entire system. INSTALLING THE 1401FM PREPARATION Make sure your transmitter or STL link has a flat input and that all pre-emphasis, low and highpass filters and transformers are defeated or removed and that all jumpers are set to your requirements.
WARSANIS 1401FM USER MANUAL USING SCA Most countries will NOT require adjustment of the input level of the stereo generator. They allow you to generate SCA signals on top of the MPX signal. This results in a higher devation than "75kHz reading on your modulation monitor. If you have finished the LINE UP, switch off the internal sinus wave generator (don=t forget to change the jumper) and put the cover on the Warsanis 1401FM.
WARSANIS 1401FM USER MANUAL OPERATION Make sure the Warsanis 1401FM bypass switch is switched to OPERATE. The first stage of the setup is the AGC. Use normal program material. Adjust the DRIVE LEVELER to get approximately 4 to a maximum of 8 dB gain reduction on the led bar of the leveler. Watch the led bar for a longer period of time if possible on music and speech. This first step is very important for the rest of the processing unit.
WARSANIS 1401FM USER MANUAL RECOMMENDED SETTINGS FORMAT LEVE LER G/R* MULTIBAND G/R* LEVEL ER DENS ITY BAND 1 DENS ITY BAND 2 DENS ITY BAND 3 DENS ITY BAND 4 DRIVE MULTIBAND CLIPPING DRIVE LOUDNESS CLIPPI NG INSTALL ATION - 15 BYPA SS - - - - -4 +4 CLASSIC AL - 2/4 BYPA SS SLOW SLOW SLOW SLOW 0 0 JAZZ 2/4 4/6 OPER ATE SLOW SLOW SLOW SLOW +1 +1 CHR 4/6 6/8 OPER ATE MEDI UM MEDI UM MEDI UM MEDI UM +3 +1 ROCK 4/6 6/8 OPER ATE SLOW SLOW MEDI UM MEDI UM
WARSANIS 1401FM USER MANUAL THE WARSANIS 1401FM IN HARMONY WITH OTHER EQUIPMENT MIC PROCESSING Most stations use mic processing for its announcers. Be sure to tune the Warsanis 1401FM to your desired sound before tweaking the mic processors. Use only a few dB of gain reduction on your mic processor. This avoid heavy pumping and breading. If available use a de-esser. The de-esser prevents extensive high frequency limiting and the Warsanis 1401FM from overload.
WARSANIS 1401FM USER MANUAL TEST AND ALIGNMENT PROCEDURES Thanks to the design of the Warsanis 1401FM the unit does not have any user alignment points. These tests schould be carried out off air. POWER-UP TEST A. Apply power and immediately check for overheating of the regulators on the power board. Also, check other components for overheating. B. Check the power leds on the front panel. INPUT STAGE TEST Beginning settings. A. Switch the Leveler into bypass, be sure that the System switch is in Operate.
WARSANIS 1401FM USER MANUAL Be very care full, do not touch any other pins than those shown below!! A. Leveler and System switch: operate. B. Feed program material or white noise to the unit. Low band check (front PCB board2) Check audio on pin 1 and 7 at U5 Mid Low band check (front PCB board2) Check audio on pin 1 and 7 at U2 Mid High band check (front PCB board2) Check audio on pin 1 and 7 at U3 High band check (front PCB board2) Check audio on pin 1 and 7 at U8 MULTIBAND TEST Settings: A.
WARSANIS 1401FM USER MANUAL LOUDNESS CLIPPING TEST No audio is necessary to preform this test. A. B. C. D. E. F. 7. Locate the loudness clipper diodes on the output board. These diodes are located above and below U9. The Loudness clipping control does not have any affect on the DC voltage of the Diodes. Connect your DC meter to the anode (top side) of Diode D8. Check the DC voltage at the anode (top side) of D8. Your meter should be reading negative 4.25 Volt/DC (" 0.25 Volt).
WARSANIS 1401FM USER MANUAL TROUBLESHOOTING Determine if the problem is caused by the Warsanis 1401FM and not by other equipment. LOST OF MODULATION * Check the connection to and from the Warsanis 1401FM. * If this is not the problem disconnect the unit from your audio chain. Test the unit again. C Check the connections between the XLR connectors and output/input PCB. * If you cannot locate the problem contact your official Warsanis dealer. BUZZ * Check the grounding of the Warsanis 1401FM.
WARSANIS 1401FM USER MANUAL * Locate the multiband clipper diodes on the output board. * Feed audio into the unit. * Check on audio at the left side of the left row of diodes (D1, 3, 9, 11, 13, 15 and 17). For the other channel, check the right side of the right row of diodes (D2, 4, 10, 12, 14, 16, 18, 20). You should listen to the output of the several bands separately. If no audio is found at one or two of the diodes, the problem is likely to be a processor failure.
WARSANIS 1401FM USER MANUAL TECHNICAL SPECIFICATIONS: GENERAL: Total harmonic distortion (THD): Signal to noise: Audio input: Input sensitivity: Input connectors: Audio output: Output level: Output connectors: < 0.12% (below processing threshold). < 0.3% (all signal processors active). > 60 dB (70 dB typical). >20K Balanced. -20 dBm or +10 dBm (jumper selectable). XLR. Balanced. Adjustable up to >+18 dBm. XLR. Size: Weight: AC Power: 19" 2 rack units. Approximately 7 kilograms. 230 / 115 Volt AC.
WARSANIS 1401FM USER MANUAL PEAK MODULATION CONTROL: Within " 2% typical. LOW PASS FILTER: 9th order elliptical phase linear. PILOT PROTECTION: >60 dB. UPPER COMPOSITE PROTECTION: >65 dB. PHASE / OVERSHOOT FILTERS: Compensate the overshoots and phase difference created by crossover networks and low pass filters. SAFETY CLIPPER: Only active to eliminate overshoots caused by very unusual waveforms.
WARSANIS 1401FM USER MANUAL STEREO GENERATOR SPECIFICATIONS Stand-a-lone Performance - Frequency Response: 0.5dB, 30Hz-15kHz. - Separation: >55dB, 400Hz. - Noise (50 microseconds de-emphasized, 100% modulation): >75dB. - Total Harmonic Distortion: <0.07% THD, 0.065% SMPTE IMD, 20Hz-15kHz. - Crosstalk-Linear (referenced to 100% modulation): -60dB. - Crosstalk-Non-linear (referenced to 100% modulation): -60dB. - 38kHz Subcarrier Suppression (referenced to 100% modulation): -60dB.
