ftc750 750 w fm transmitter
Transkript
ftc750 750 w fm transmitter
FTC750 750 W FM TRANSMITTER Ma�n Features • • • • • • • • Very Compact Case (3U Rack) H�gh Qual�ty Profess�onal DDS modulator w�th bu�lt �n RDS encoder Very H�gh Eff�c�ency More Than 67% Automat�c Power Control Fully Broadband Measurement And D�splay Of The Transm�tter's Work�ng Parameters H�gh Rel�ab�l�ty Use Of M�crostr�p Technology Compl�ant W�th All The Standard ETSI – CCIR - FCC The FTC750 FM transm�tter �s des�gned to prov�de more rel�able FM transm�tters us�ng the LDMOS power trans�stor for the FM broadcast market. The ampl�f�er uses only 1 p�ece BLF578 extremely rugged LDMOS power trans�stor from NXP. LDMOS technology allows h�gher performance compared to the trad�t�onal MOSFET trans�stors: • H�gher eff�c�ency (78%). • Excellent thermal stab�l�ty • Smaller d�mens�ons at the same RF output power. FTC750 750 W FM TRANSMITTER Techn�cal Parameters GENERAL DATA Output Power Range RF Output Connector Operat�ng Band D�mens�ons: W - H - D We�ght RF Power Stage Technology Automat�c Power RF Control Overall Output Power RF Stab�l�ty Cool�ng System A�r outlet Po�nts of measure AC Current Protect�on AUDIO & RF DATA L/R Input Level L/R Level Adjustment L/R Input Impedance PILOT Tone Frequency PILOT Tone Frequency Stab�l�ty THD+N (stereo/mono operat�on) Pre-emphas�s Pre-emphas�s Tolerance FM S/N Mono Ampl�tude-frequency character�st�c Stereo Crosstalk (typ�cal) Class of Em�ss�on Stereo Em�ss�on PLL Lock T�me Frequency Dev�at�on Max�mum Frequency Dev�at�on Frequency Stab�l�ty RF Frequency Steps INSTALLATION REQUIREMENTS AC Voltage Power Consumpt�on Current consumpt�on @220VAC Overall Eff�c�ency Power Factor ENVIRONMENT Temperature Range (operat�ng) Hum�d�ty Range (operat�ng) Alt�tude Range (operat�ng) 0 - 750 W EIA 7/16 87.5-108.0 MHz 48 - 13 -67 cm (3U Rack Un�t) 25 kg LDMOS Stab�l�zed output power value on the set value ± 0.1 dB Forced a�r-cool�ng On the rear. Cool�ng flow 2200/2400 m3/h (depend�ng on env�ronment) RF Sample Ava�lable to see and set the l�m�ts for AC current 0 dBm(0.636Vpk) Soft adjust from back panel v�a tr�mmer 600 ohm balanced, 10 Kohms unbalanced 19 KHz ± 1 Hz 0.03% @ 400 Hz 50/75μs selectable from front panel ± 0.1 dB 63 dB ±0.15 dB, 30 Hz to 15 KHz Ma�n to Sub -35 dB 30 Hz to 15 KHz F3 Accord�ng to ITU-R recomendat�on 450 (p�lot tone) 110 ms ± 75 KHz ± 90 KHz ± 1 ppm from -5 to 45°C. 100 KHz 180/264 V AC – 47-63 Hz 1200 VA 5A 67% >0.95 -5 / +45 °C, 23 / 113 °F 90% @ 40 °C, 104 °F < 2000 meters / <13125 Feet Bostancı Yolu Cad. Keyap Çarşı S�tes� D-1 Blok No: 56 34775 Y.Dudullu - Ümran�ye - İSTANBUL / TURKEY • Tel: +90(216) 540 70 45 • Faks: +90(216) 540 70 46 • E-ma�l. �nfo@ona�r.com.tr