Chifukwa Chiyani Sankhani STL-10 STL Transmitter ndi Receiver ya FM Radio Station?

Chifukwa chiyani STL-10 Studio Transmitter Link Equipment?

STL10 Studio to Transmitter Link / Inter-city Relay ndi njira yolumikizirana ndi VHF / UHF FM yomwe imapereka njira youlutsira mawu yapamwamba kwambiri yokhala ndi magulu osiyanasiyana osankha. Makinawa amapereka kukana kwakukulu kwa kusokonezedwa, kuchita bwino kwaphokoso, kuyankhulana kocheperako, komanso kuperewera kwakukulu kuposa machitidwe omwe alipo a STL.

Zomwe Muyenera Kudziwa Zokhudza Studio Transmitter Link

Ulalo wapa studio-transmitter (kapena STL) imatumiza zomvera ndi kanema wawayilesi kapena wailesi yakanema kuchokera ku situdiyo yowulutsira kupita ku wayilesi kapena pawailesi yakanema kumalo ena.

Izi nthawi zambiri zimakhala zofunikira chifukwa malo abwino kwambiri a mlongoti ali pamwamba pa phiri, pomwe pakufunika nsanja yofupikitsa, koma pomwe situdiyo sichitha konse. Ngakhale m'magawo athyathyathya, likulu la malo ololedwa ndi wayilesi sangakhale pafupi ndi pomwe situdiyo ili kapena m'dera lomwe anthu ambiri amadana nalo, ndiye kuti mlongoti uyenera kuyikidwa mtunda wautali kapena makilomita angapo.

Kutengera malo omwe akuyenera kulumikizidwa, siteshoni imatha kusankha ulalo wa point-to-point (PTP) pa radiofrequency ina yapadera kapena ulalo watsopano wamawaya wa digito kudzera pamzere wodzipereka wa T1 kapena E1 (kapena wokulirapo). Maulalo a wailesi amathanso kukhala digito, kapena mtundu wakale wa analogi, kapena wosakanizidwa mwa awiriwo. Ngakhale pamakina akale a analogi, ma audio angapo ndi ma data amatha kutumizidwa pogwiritsa ntchito ma subcarriers.

Ubwino Omwe Simungathe Kukana

• Zopangidwa kuchokera ku 220 mpaka 260MHz, 300 mpaka 320MHz, 320 mpaka 340MHz, 400 mpaka 420MHz ndi 450 mpaka 490MHz
• Mafupipafupi omwe amaperekedwa ndi kulandira amatha kukhazikitsidwa mosavuta ndi gulu lakutsogolo la digito
• Yoyenera pamawu a digito. Ma subsonic over modulation ndi kupotoza kwa magawo otsika amayendetsedwa ndi kagawo ka mayankho kuti akweze mtundu wamawu wamakasitomala aposachedwa.
• Kusokonekera kwa THD kochepa: mtengo wa THD wokhala ndi stereo kapena mono demodulated ndi ma sign otsindikitsidwa ndi wosafunika.
• Kuyankha kwafupipafupi: chifukwa chaukadaulo waposachedwa kwambiri komanso kulondola kwachigawocho kuyankha kwafupipafupi ndikokwanira.
• Phokoso lochepa: chiŵerengero chabwino kwambiri cha ma sign-to-noise mwina mu mono kapena mu stereo chimalola kugwiritsa ntchito ma STL¡ˉs awa pamamanetiweki amitundu ingapo popanda kutsitsa mtundu wamawu.
• Kukhudzika kwakukulu: kumathandizira kuchepetsa ndalama za antenna za STL.
• Chitetezo chachikulu cha RF: chimalola kugwira ntchito m'malo ovuta kwambiri a RF.
• Kukanidwa kwakukulu moyandikana ndi njira: kudalandira chifukwa chachitetezo chabwino kwambiri chamakina komanso kusefa kwa RF.
• Kukhazikika kwapafupipafupi ndi kutentha kwamkati kumalipira kristalo.
•  Chiwonetsero cha LCD chophatikizika: kuzindikira kwathunthu ndi kuyeza kwa zowonetsera zapatsogolo za LCD.
• Chiwonetsero chazidziwitso chophatikizika ndikuwongolera chitetezo: pazigawo zonse zotumizira ndi chitetezo chazovuta.

1 * STL Transmitter

1 * STL Receiver

Studio Yabwino Kwambiri Kutumiza Zida Zolumikizira

Stl-10 STL Transmitter:

• Maulendo osiyanasiyana: 220 mpaka 239.99 MHz, 240 mpaka 259.99 MHz, 300 mpaka 319.99 MHz, 400 mpaka 419.99 MHz, 450 mpaka 469.99 MHz, 470 mpaka 489.99 MHz
• Kusinthasintha: FM, +-/5 kHz kupatuka pachimake
• * Kukhazikika pafupipafupi: <+/- 100 Hz
• RF linanena bungwe mphamvu: 0 mpaka 15 W +/-0.5 dB
• Mphamvu yowoneka bwino: 5 W
• Kuponderezedwa kwa Harmonic: <-65 dBC
• RF linanena bungwe impedance: 50 ohm
• Cholumikizira cha RF: N-Type -chikazi
• Mulingo wolowetsa wa Audio/MPX: -10 mpaka +13 dBm @+/-75 KHz kupatuka
• Kusintha kwa Audio/MPX: 10 K Ohm
• MPX ndi cholumikizira cha AUX: BNC-chikazi
• Kugogomezeratu: 0/25/50/75 us
• Chiŵerengero cha S/N Mono: > 73 dB (20 mpaka 20 kHz)
• S/N chiŵerengero cha Sitiriyo: >68 dB (20 mpaka 15 KHz)
• Kusokoneza: <0.05% THD @+/-75 KHz dev. <0.2% THD @+/- 150 KHz dev. (kufikira malire> 150 KHz)
• Kuyankhulana kwa stereo: > 60 dB (100 mpaka 5 KHz) > 50 dB (20 mpaka 15 KHz) int. MPX encoder> 60 dB yokhala ndi ext. MPX encoder
• Kuyankha pafupipafupi kwa mayendedwe: 20 mpaka 15 KHz +/- 0.15 dB
• Kuyankha pafupipafupi kwa MPX: 10 mpaka 100 KHz +/- 0.15 dB
• Kuyankha pafupipafupi kwa AUX: 10 mpaka 100 KHz +/- 0.15 dB
• Zofunikira zamagetsi zamagetsi: 90 ~ 264VAC; 127 ~ 370VDC, mitundu yonse komanso kuyika konsekonse
• Kutentha kwa ntchito: -10 mpaka 45 digiri Celsius
• Miyeso: 483 x 132.5 x 400 mm, rack std. 19"± 2U
• Kunenepa: 6.5 Kg

Wolandila wa Stl-10 STL:

• Maulendo osiyanasiyana: 220 mpaka 239.99 MHz, 240 mpaka 259.99 MHz, 300 mpaka 319.99 MHz, 400 mpaka 419.99 MHz, 450 mpaka 469.99 MHz, 470 mpaka 489.99 MHz
• Kumverera: -98 dBm pa 16 dB SINDA
• Kuyankha pafupipafupi: 20 Hz mpaka 53 KHz +/-0.1 dB
• Kulekanitsa sitiriyo: 20 Hz mpaka 15 KHz > 58 dB
• Kuchuluka kwa S/N: >65 dB @-40 dBm , 75 KHz dev. ndi 1khz.
• THD: 20 Hz mpaka 53 kHz <0.3%
• Kusankha: +/- 160 KHz pa -3 dB IF BW +/- 500 KHz pa -62 dB IF BW
• Kukana kwazithunzi:> 65 dB
• Kuletsa kutulutsa mawu kwa stereo: 600Ohm moyenera
• Cholumikizira cha stereo audio: XLR-M
• MPX linanena bungwe impedance: 10K Ohm
• Cholumikizira cha MPX: BNC-F
• Onani zotulutsa:> 2 × 0.2 W stereo pa 120 Ohm
• Cholumikizira chowunikira: 6.3mm stereo foni jack
• Kusokoneza kwa RF: 50Ohm
• Cholumikizira cha RF: N-Type -chikazi
• AC mphamvu: 85 ~ 264VAC; 120 ~ 370VDC, Kuyika kwathunthu kwapadziko lonse lapansi
• Kugwiritsa ntchito mphamvu: pafupifupi 25W kuchokera ku AC
• Kutentha kwa ntchito: -10 mpaka 45 digiri Celsius
• Miyeso: 483 x 89 x 320 mm, rack std. 19”2u
• Kunenepa: 5 Kg