background image

 

 

 

FMTX250M 

FM Transmitter 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 

 

            User Manual 

WARNING! 
 
This Transmitter is capable of generating extremely high RF 
potential. Touching internal parts, or the connected antenna 
system, will cause serious RF burns. Antenna systems should be 
installed such that exposure by any person to RF fields cannot 
exceed safe limits. The permitted limits vary from country to 
country. Expert advice should be sought about the safe 
installation of this transmission system.

 

RISK OF FIRE!  
 
RF (Radio Frequency) energy could cause ignition of combustible 
surfaces during fault conditions. Installation should be left to 
qualified personnel. RF can cause burns to skin. Ensure antenna 
systems and feeder cables are not situated near, or could fall 
onto, any combustible surface.

 

Summary of Contents for FMTX250M

Page 1: ... to RF fields cannot exceed safe limits The permitted limits vary from country to country Expert advice should be sought about the safe installation of this transmission system RISK OF FIRE RF Radio Frequency energy could cause ignition of combustible surfaces during fault conditions Installation should be left to qualified personnel RF can cause burns to skin Ensure antenna systems and feeder cab...

Page 2: ...t operation of the cooling fans in this product is vital to reliable continuous operation Schedule bi annual maintenance checks We strongly advise the use of a standby transmitter system for use during maintenance events or fault conditions to prevent prolonged breaks in transmission IMPORTANT When cycling the power off then on ensure that the transmitter is off for at least 10 seconds before re a...

Page 3: ...should be followed Use of this device into a radiating antenna requires a valid licence from a Spectrum Management Authority in most countries Use of this device as part of a transmission system or combined transmission system not specified by the manufacturer may require further testing to ensure that it remains compliant with the essential requirements and other relevant provisions of current EU...

Page 4: ...ipment rack using slide supports It should be situated so that its location or position does not interfere with its proper ventilation The transmitter should be situated away from heat sources The transmitter should be connected to a power supply only of the type described in the operating instructions or as marked on the unit Precautions should be taken so that the grounding or polarisation of th...

Page 5: ... the modulator baseband MPX spectrum 6 RF MON BNC connector for monitoring of the RF output Output level will be the RF output level attenuated by approximately 40dB Not to be used for measurement of harmonics 7 RF OUT N Socket Connect a matched pre tested antenna system with a return loss of 14dB to this socket Ensure all parts of the feeder and antenna system are rated for 300W or above 8 RF ADJ...

Page 6: ... earth potential The above Open Collector outputs are capable of operation up to 50V and sinking a current of 75mA maximum The normally high ie pull low upon alarm condition provides inherent power failure or cable connection failure signalling 10 MPX IN If using an external processor and RDS encoder or a baseband MPX Studio Transmitter Link connect to this BNC Adjust the output level of the exter...

Page 7: ... will return to normal mode and the transmitter will begin broadcasting Connect the baseband multiplex signal to the rear panel BNC connector and adjust the source level so that maximum audio peaks register just below the peak section of the front panel audio level bar graph display Once all settings are correct power down the unit Disconnect the test load and connect to the antenna Power up the u...

Page 8: ...ntenna system and has shut down the RF output as a safety precaution Check the antenna system including all cabling and or filters and or combiners where fitted for correct operation The FWD indicator see below will also show and the standby transmission system where used will have activated TTL control FWD The system has detected there is no forward power This may be due to one or both of the abo...

Page 9: ... Voltage Directive 2014 35 EU IEC 60950 1 2005 A2 2013 Safety Requirements for equipment 600V EMC Directive 2014 30 EU ETSI EN301 489 53 v1 1 0 ETSI EN301 489 1 v2 1 1 ERM EMC for Radio Equipment Specific Conditions for FM Transmitters Part 11 Radio Equipment Directive 2014 53 EU ETSI EN302018 2 v2 1 1 Transmitting Equipment for FM Radio Broadcasting service The following operation conditions and ...

Page 10: ...C F 40dB 50 ohms MPX BNC F 1V P P 10K ohms MPX MPX Input Level 8dBu for 75KHz deviation MPX Input Impedance 75 Ohms MPX input connectors BNC F Power Supply Input AC 100V to 250V 50 60 Hz Consumption maximum RF output 550W 230V 50Hz Mechanical Size mm 2U 88 H x 482 W x 290 D Weight 5kg Temperature 0ºC to 42ºC Humidity 95 relative non condensing We reserve the right to alter specifications without n...

Page 11: ...If you need more information on the collection reuse and recycling systems please contact your local or regional waste administration IMPORTANT NO REPRESENTATIONS OR WARRANTIES EITHER EXPRESS OR IMPLIED OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR OF ANY OTHER NATURE ARE MADE WITH RESPECT TO THIS PRODUCT Do not misconstrue any information as our recommendation to use any product process ...

Page 12: ... this document is subject to change without notice Lucoro Broadcast makes no warranty of any kind with respect to this information Lucoro Broadcast specifically disclaims the implied warranty of merchantability and fitness for a particular purpose Lucoro Broadcast Clay Pit Lane Roecliffe York YO51 9FS Telephone 01423 313550 Telephone International 44 1423 313550 Enquiries sales lucorobroadcast com...

Reviews: