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RFCAST – MT100. Rev. 2: 06-12-04

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OWNERS MANUAL

Model MT100 (-E & -U)

100 WATT FM STEREO TRANSMITTER

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Содержание MT100-E

Страница 1: ...RFCAST MT100 Rev 2 06 12 04 1 16 OWNERS MANUAL Model MT100 E U 100 WATT FM STEREO TRANSMITTER...

Страница 2: ...er to the section entitled RF Power Control in section 3 4 of this manual Notice 4 The factory settings of this manual for such this as Input Selection preemphasis and input sensitivity may not be cor...

Страница 3: ...OULD A LARGER MORE VIEWABLE VERSION OF ANY DIAGRAM BE REQUIRED NOTIFY RICHARDSON ELECTRONICS LTD TO CALL OUR TECHNICAL SUPPORT CENTER OR FOR OTHER CUSTOMER SERVICE ISSUES AT RICHARDSON ELECTRONICS IN...

Страница 4: ...t perform a visual inspection of the item s to determine if any damage occurred during shipment Be sure to retain all the shipping materials crates and boxes or cartons until such time that it has bee...

Страница 5: ...e to perform associated tasks All local codes for building safety fire or related standards must be observed Consult local authorities for the standards for the area or region where the equipment will...

Страница 6: ...e 9 3 3 FM Stereo Exciter page 9 3 4 MT100 RF Control Circuit page 9 3 5 MT100 RF Amplifier page 10 3 6 Low Pass Filter and Directional Coupler page 11 4 0 MT100 Technical Specifications page 12 5 0 S...

Страница 7: ...rd Layout 17 0 MT100 Logic Control Board Layout 18 0 Logic Control Board MT100 Schematic 19 0 MT100 Low Pass Filter Layout 20 0 MT100 GR00175 250W Low Pass Filter Schematic 21 0 100W Directional Coupl...

Страница 8: ...ne RF out LOW PASS FILTER and DIRECTIONAL COUPLER RF AMPLIFIER SECTION REFL1 REFL2 FWD RF PROTECTION TEMPERATURE RF CONTROL CIRCUIT RF Monitor AC DC CONVERTER DC DC CONVERTER 28 Vin 28 Vdc 15 Vdc FANs...

Страница 9: ...this manual for more detailed specifications and for operational settings 3 4 MT100 RF Control Circuit The RF input circuit has 3 main functions 1 RF power control 2 RF protection 3 Measurement status...

Страница 10: ...the rear panel contacts jumper are closed WARNING with enable off there is no RF out but all the internal circuits are powered stand by condition Remember to switch off the main on off switch on the...

Страница 11: ...tion VCC 28V IDC Full Power 7 A typ Idq total per 2 sections 50 mA typ Frequency range FM 87 5 108 MHz Power Gain 17 dB typ Output Power 100 W The 2 way Combiner is a 2 way in quadrature structure and...

Страница 12: ...00 cubic meters hour RF Characteristics Frequency Range 87 5 108 MHz 50Khz step synthesized Output Power 100 Watt nominal VSWR 1 8 1 RF Power Devices Technology MOSFET Off lock Attenuation 60 dBc RF O...

Страница 13: ...8dBc Audio Filter rejection 19KHz to 100KHz 30 dB 19KHz suppression 46dB External MPX Input Input connectors BNC female front panel Input Impedance 10K Input level For 75KHz deviation 3 to 9 dBm 600 C...

Страница 14: ...ation The input main voltage is set at the factory or it may be changed by the switch located on the AC DC converter A label on the transmitter chassis rear indicates the factory set AC voltage The no...

Страница 15: ...rized frequency In order to change the frequency of operation locate the OME 1T exciter section of this manual and review the information on page 4 of 4 After review the frequency setting examples in...

Страница 16: ...operating temperature is too high the temperature protection intervenes when the room temperature is 45 In this case the output power is reduced of about 6dB Fault red on if the transmitter has other...

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