TELEVISION TRANSMITTERS

Transcription

1 TELEVISION TRANSMITTERS 1KW - 50KW High Efficiency UHF L.D.M.O.S SUPER LINEAR CAN BE UPGRADED TO DIGITAL BY CHANGING MODULATOR/EXCITER The prices are subject to change.please request a written quotation with the validity to suite your timescale. 40kW TV transmitter illustrated Type Power Out 19" Rack* Price CCIR3-1 P30-1KW 1KW Optional $8, CCIR3-1 P30-2KW 2KW Optional $11, CCIR3-1 P30-4KW 4KW 27U $29, CCIR3-1 P30-8KW 8KW 27U $42, CCIR3-1 P30-10KW 10KW 32U $47, CCIR3-1 P30-12KW 12KW 32U $62, CCIR3-1 P30-14KW 14KW 35U $65, CCIR3-1 P30-16KW 16KW 45U $69, CCIR3-1 P30-18KW 18KW 2x45U $73, CCIR3-1 P30-20KW 20KW 2x45U $77, CCIR3-1 P30-40KW 40KW 3x45U $122, CCIR3-1 P30-50KW 50KW 4x45U $192, Rack sizes are aproximate and can vary depending on the options alternative rack size combinations available for customers preference. CCIR3-1 DEX Dual Exciter Option $4, XIC-101 GPS Oscillator ±3x10-12(0.001ppm) $2, Option F Oven oscillator 0.1ppm $ Option D Nicam Stereo $2, Option C Dual Sound Dual Stereo $ Option K NTSC Stereo BTSC $1, Option 6.5 S-L Secam L $ Transposer/repeater option available for same cost Specifications Video Input: 1V 75Ω Pk-Pk BNC Audio Input:Mono Audio Input Stereo (see nicam or dual sound options) Frequency Stability Vision Carrier IF: to internal reference oscillator with a frequency stability of, 5. ppm Oven Oscillator Opt F Frequency stability 0.1ppm. Ageing <5x10-8 per day GPS Opt XIC-101 GPS Oscillator <.001ppm Recalibrates using GPS satellite RF Changer: PLL low phase noise locked to vision carrier. Sound Carrier Power Ratio Mono -20 or 14dB from vision carrier. Optional dual sound,- 20dB from vision carrier. Optional nicam, mono car-rier -14dB nicam subcarri-er -20dB from vision carrier. K Rating: 2.5% Differential Gain: Typical± 3% Differential Phase: Typical ± 5 Luminance Chrominance Group Delay: ± 35ns See option G group delay precorrection. Signal/Noise Ratio Weighted: 57dB Gain Inequality: ± 0.5dB In band Intermodulation: Typical 53dB Available in Standard Broadcast TV Channels MHz Designed to comply with FCC or ITU rules. Available in PAL SECAM AND NTSC with stereo sound options. The power output specified on each transmitter does not include for combining filters, antenna filters, antenna feeders, or any additional items fitted to the transmission line. Specifications are typical and subject to change without notice.. Spurious out of band Harmonics 40dB, 60dB with suitable antenna filter. Voltage 220 / 240V AC Operating temperature -10 C to +40 C, recommended temperature controlled environment +20 C Power outputs are peak sync. Output connectors frequencies up to 800MHz 7/8 up to 2.5kW 1.5/8 or 3.1/8 up to,10kw 3.1/8 up to 20kW EIA flange. Adapters are available to enable connection to different size feeders. larger connectors may be required for transmitters sited at high alttitude.

2 Dual Exciter Option TV Transmitters With Dual Drive Power Out Exciter B Bandpass and Harmonic Filter Exciter A Load Reflected Power Sensor Tel: (44) , Fax (44) USA Tel Fax

3 Television Transmitters / Repeaters 1/2/4/20W Frequency Agile* UHF/VHF TV transmitters Multistandard Modular design Air cooled Overheat protection Type Power 19" Rack Price Out CCIR3-1 P30-1 1W(50Ω N) Optiona $1, CCIR3-1 P30-2 2W(50Ω N) Optional $1, CCIR3-1 P30-4 4W(50Ω N) Optional $1, CCIR3-1 P W(50Ω N) Optional $2, S 400T Transposer option $ PWRM Power meter $ Stereo sound options are available Power output meters are standard on 1kW and above. Opt PWRM is for power meters on 600W and below. Legislation in some countries requires power monitor- Dimensions 2U x 650mm (min 800mm deep rack required ) Technical specifications Video Input level 1 Vss / ± 0,4 V Input impedance BNC socket 75 Ω Video bandwidth 0,020-5,0 MHz Group delay ± 50 ns (0,1...4,43 MHz) Differential gain < 10 typ. 3 % Differential phase < 10 typ. 3 deg S/N (CCIR 405-1) 57 db typ. 60 db Specifications are typical and subject to change without notice. Above is a 20 watt two way filter combiner and left is a four way four watt filter combiner. Both models are available in two.three and four channel versions. These combiners are made to a very high build quality and offer excellent value for money. Multi channel low power transmitting sites can be constructed. Adjacent channels can be used,using the correct combination of combiners and antennas. Fourty six analogue chanells can be configured in the UHF spectrum or fourrty six digital muxes depending on local spectrum allocation and available frequencies. See combiner filter section. Audio Output frequency range Hz Input impedance balanced 600 Ω / 10 kω S/N (1 KHz Sinus) > 43 db typ. 48 db Input level dbm Frequency range (ref. to 1 khz) ± 2,0 db Distortion < 2 typ. 0,8 % Transmitter Output frequency range agile UHF-VHF MHz Output impedance, N socket 50 Ω Spurious radiation Typical 60 db TV standards programmable B/G, D/K, J, N, M L/Secam Frequency spacing Vc - Sc B/G 5,5 MHz ±5 KHz D/K 6,5 MHz ±5 KHz I 6,0 MHz ±5 KHz N 4,5 MHz ±5 KHz Repeaters Repeater option is the same price, Specify transmitter or repeater when ordering. Repeater specifications, same as transmitter except 50 ohm input, N connector. Tuning steps 250 KHz Adjustment range AGC, switchable db 40dB

4 Television Transmitters / Repeaters 40/100/250/500W Available in Standard Broadcast TV Channels MHz Designed to comply with FCC or ITU rules. Available in PAL SECAM AND NTSC with stereo sound options Antenna filter supplied with transmitter See Info on page with lower power TV transmitters 500 Watt Dimensions 5U x 650mm (min 800mmdeep rack required ) Type Power Out 19" Rack Price CCIR3-1 P W(50Ω N) Optional $2, CCIR3-1 P W(50Ω N) Optional $4, CCIR3-1 P W(50Ω N) Optional $5, CCIR3-1 P W(50Ω N) Optional $6, CCIR3-1 DEX Dual Exciter Option $4, XIC-101 GPS Oscillator ±3x10-12(0.001ppm) $1, Option F Oven oscillator 0.1ppm $ Option D Nicam Stereo $ Option C Dual Sound Dual Stereo $ Option K NTSC Stereo BTSC $ Option 6.5 S-L Secam L $ PWRM Power meter $ Transposer/repeater option available for same cost We have in stock a large range of quality connectors and cable Specifications Transmitters Video Input: 1V 75Ω Pk-Pk BNC Audio Input:Mono Audio Input Stereo (see nicam or dual sound options) Frequency Stability Vision Carrier. 5 ppm. Higher stability available up to 1Hz Frequency Stability Sound Carrier IF: locked to vision carrier. Sound Carrier Power Ratio Mono -13dB from vision carrier. Optional dual sound,- 20dB from vision carrier. Optional nicam, mono carrier -13dB nicam subcarrier -20dB from vision carrier. Output Impedance 50Ω Output connectors N type female Luminance Chrominance Group Delay: ± 35ns See option G group delay precorrection. Signal/Noise Ratio Weighted: 57dB Gain Inequality: ±.5dB In band Intermodulation: Typical 53dB Spurious Harmonics 60dB with suitable antenna filter.,see combining filters for multiple transmitters. Voltage (specify on order) 110V AC,100W transmitters and below. 220 / 240V AC all transmitters. Operating temperature -10 C to +40 C, recommended temperature controlled environment +20 C Power output meters are standard on 1kW and above. Opt PWRM is for power meters on 600W and below. Legislation in some countries requires power monitoring. K Rating: 2.5% Differential Gain: Typical± 4% Differential Phase: Typical± 5 Power output is peak sync. Antenna filters supplied with transmitters/repeaters Repeaters Repeater option is the same price, Specify transmitter or repeater when ordering. Repeater specifications, same as transmitter except 50 ohm input, N connector. Tuning steps 250 KHz Adjustment range AGC, switchable db 40dB Specifications are typical and subject to change without notice.

5 We build a comprehensive range of transmitters that will exactly fit most requirements 10kW TV transmitter illustrated

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7 TV Transmitters With a Patch Panels C B A D A TV transmitter shown during construction in our factory, with the patch panel option,viewed from the side. The feed from the transmitter (A) is connected to the antenna filter. The output of the antenna filter(b) connects to the patch panel. The connecting links (C)are normally configured so the full power is fed to the splitter(d) feeding the two halves of the transmitting antenna via the two outside links. The main purpose of purchasing the patch panel option is to reduce the likelihood of the transmitter going of the air due to antenna failure. The antenna is installed in two halves with two feeders as illustrated on the next page. If one half fails the full power can be configured via the patch panel to feed the fully functional part of the antenna. Loss of service can then be avoided especially when maintenance is delayed on the antenna due to extreme weather conditions. Other benefits are appreciated by maintenance engineers. Dummy loads can easily be connected. Radiation angles can be optimized so max power is transmitted to where its needed and not wasted by brodcasting above the horizon.