CTK38 User Manual
Contents
1. CTK38 User Manual VHF MICROEAR DESKTOP TRANSMITTER 5738 TRANSMITTER 7S HANNEL SN Rev 01 Date 20 October 2014 Rev 01 CTK38 User Manual BRIEF DESCRIPTION The CTK38 is composed by a VHF transmitter CST38 and a power supply PSP910 The CST38 transmitter has been especially designed to allow best usage of MicroEar s family in ear receivers and many modulation parameters such as deviation level frequency curve compression factor has been optimized Therefore CST38 assures maximum performances of MicroEar both as sound quality and as audio level in any case limited because of the very small size of receiver Higher power transmitter are available to further increase the coverage area cell it is also possible to link in parallel several transmitters in iso frequency mode to create a multiple cells coverage MicroEar internal battery has about 30 hours working autonomy in any case the original battery once activated taking out metal label has a limited life even in power off When empty battery MicroEar will drastically reduce audio level and receiver sensitivity Example of VHF IEM System MICROEAR RECEIVER PSP910 Not included SAFETY INSTRUCTION e Read this safety instruction and the manual first e Follow all instructions and information e Do not lose this manual e not use this apparatus under the rain or near the water e Do not install the appar2. This device is useful to switch on automatically the carrier of the transmitter only when the modulating signal is present on the TX s input The circuit is mounted on a printed circuit board that has to be factory mounted in the transmitter Once the modulation audio signal reaches the pre set threshold the transmitter is activated When the modulating audio signal is not more present the carrier is switched off again after a pre set delay time Consequently the relevant MicroEar receiver is muted by its built in squelch circuit preventing the listening of unwanted noise Two pre setting values can be adjiusted by means of relevant screwdriver trimmers situated on the printed circuit board RT1 for audio sensitivity and RT2 for delay time TECHNICAL SPECIFICATIONS e Switchable channels e Switching window e Frequencies e Channel spacing e Frequency error e Temperature range e RF output power e RF output impedance e Spurious emissions e Transmission activation e Modulation e Mod audio input e Mod audio input level e Peak limiter e NR system e AF bandwidth e Distortion e SND N ratio e Led indications e Powering e Dimensions e Weight 16 preset in the 140 250 MHz range other upon request 10 MHz other upon request microprocessor controlled PLL synthesizer circuit with 25 kHz minimum step 1 They are easily PC reprogrammable by the optional UPK 32 Programming kit 25KHz standard Other on
3. atus near heaters or in hot environments do not use outside the operating temperature range e Do not open the apparatus only qualified service technician are enabled to operate on it The apparatus needs servicing when it is not properly working or is damaged by liquids moisture or other objects are fallen in the apparatus e Use only accessories or replacement parts authorized or specified by the manufacturer e Clean the apparatus only with dry cloths do not use liquids e Report the serial number and the purchasing date in front of the manual It is needed to have proper replacement parts or accessories from the manufacturer e When replacement parts are needed use only replacement parts authorized from the manufacturer Substitution with not authorized parts could result in electric shock hazards or fire e Keep attention on all the labels with warnings or hazards on the apparatus WARNING The apparatus is intended for professional use anyway the manufacturer alerts the user that the headphone output power of the apparatus could exceed the level of 85 dB A of sound pressure level and this could be dangerous for the hearings Do not use the headphone with high power level or for long time Reduce the power or suspend the hearing in case of any kind of hearing problem FRONT PANEL 1 2 3 4 5 6 _ JO SELECTOR modulation audio input level range Micro L
4. hat the above mentioned product is compliant with the R amp TTE Directive 1999 5 EC The conformity is achieved by fulfilling the following European Standards ETS 300 445 Radio Equipment and Systems RES Electro Magnetic Compatibility EMC standard for wireless microphones and similar Radio Frequency RF audio link equipment El ETS 300 086 Electromagnetic compatibility and Radio spectrum Matters ERM Land Mobile Service Radio equipment with an internal or external RF connector intended primarily for analogue speech EN 60950 Safety of information technology equipment Romano d Ezzelino VI 14 01 2002 fs Fa City Date by b PE baro VERI ITALY ONLY Obblighi di informazione agli utilizzatori Modello di informazioni agli utenti dei prodotti di tipo professionale INFORMAZIONE AGLI UTENTI ai sensi dell art 13 del Decreto Legislativo 25 luglio 2005 n 151 Attuazione delle Direttive 2002 95 CE 2002 96 CE e 2003 108 CE relative alla riduzione dell uso di sostanze pericolose nelle apparecchiature elettriche ed elettroniche nonch allo smaltimento dei rifiuti Il simbolo del cassonetto barrato riportato sull apparecchiatura o sulla sua confezione indica che il prodotto alla fine della propria vita utile deve essere raccolto separatamente dagli altri rifiuti La raccolta differenziata della presente apparecchiatura giunta a fine vita e organizzata e gestita dal produttore L utente che vorr disfa
5. ine LED INDICATION peak indicator limiter on status yellow Led ADJUSTMENT audio input sensitivity With the optimum sensitivity adjustment the yellow Led 2 must flash under modulation peaks SELECTOR transmitting channel 0 LED INDICATION apparatus ison red Led SWITCH On Off Power REAR PANEL 7 8 9 10 CONNECTOR antenna N F type connector CONNECTOR modulation audio input XLR3 F type connector The audio input line is transformer balanced and floating e pin 1 ground epin2 AF ainput epin 3 AF b input CONNECTOR transmission activation Push To Talk mono 6 3 mm standard jack type The transmission is allowed when the central pin hot is connected to external ring ground Note 1 in the standard version of CST 38 when the PTT plug is not inserted the carrier is still activated Instead when the CST 38 is provided with the optional VOX 38 Voice Activated Circuit board the carrier is activated automatically only when the input audio signal reaches the activation threshold pre set in the VOX 38 board However the external PTT circuit if connected can override the VOX 38 device and force the CST 38 in continuous transmission CONNECTOR dc power input 10 5 16 Vdc e pin1 Vdc e pin 2 ground OPTIONAL VOX 38 Voice Activated Circuit board VOX 38 board mounted on the CST 38 main board
6. request 5 ppm in the rated temperature range 10 55 C 300 10 mW 1 dB 1 50 ohm type N F connector lt 2 nW remote PTT Push To Talk circuit wired to 6 3 mm mono jack connector The transmission is allowed when the central pin hot is connected to external ring ground See Note 1 on front page FM peak deviation 5 kHz transformer balanced floating Micro Line switchable and externally adjustable between Micro 64 34 dBu 0 5 15 mV Input impedance gt 2 Kohm Line 22 8 dBu 60 1 950 mV Input impedance gt 10 kohm automatic with dynamic range gt 30 dB over the level set for the nominal modulation compressor circuit with noise gate specially adapted to the MicroEar receivers 200 Hz 5 kHz 3 dB 0 5 96 0 2596 typ 80dB 83 dB typ CCITT measured Transmitter On red LED Limiter On yellow LED 10 5 16 Vdc 300 mA max negative ground 40 x 120 x 175 mm 700 g ca NOTE 1 according to local regulations CTK38 User Manual Rev 01 DECLARATION OF CONFORMITY Manufacturer Name WISYCOM S r l Manufacturer Address Via Spin 156 46060 Romano d Ezzelino VI Italia Herewith we declare that Product Type gt VHF Transmitter Product Name CST38 AWN38 V whip antenna Optional and Accessories This declaration includes all the options and accessories included into the product mentioned above We declare t
7. rsi della presente apparecchiatura dovr quindi contattare il produttore e seguire il sistema che questo ha adottato per consentire la raccolta separata dell apparecchiatura giunta a fine vita L adeguata raccolta differenziata per l avvio successivo dell apparecchiatura dismessa al riciclaggio al trattamento e allo smaltimento ambientalmente compatibile contribuisce ad evitare possibili effetti negativi sull ambiente e sulla salute e favorisce il reimpiego e o riciclo dei materiali di cui composta l apparecchiatura Lo smaltimento abusivo del prodotto da parte del detentore comporta l applicazione delle sanzioni am ministrative previste dalla normativa vigente CTK38 User Manual Rev 01 WVNaeEY Conn Wireless System Communications Via Spin 156 e 1 36060 Romano d Ezzelino e Italy Tel 39 0424 382605 e Fax 39 0424 382733 www Wisycom com e e mail sales Qwisycom com
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