Paglalarawan
Integrated digital stereo signal generator, excellent audio, on-board RDS
The new STMAX 9000+ series FM exciters combine more features into a small board than ever before. With digital modulator, on-board stereo and RDS and all of this full controllable via LCD display with new 2-level MENU system and availability in 15W, 25W, 50W and 100W formats all powered from 12-15V this board represents realization of dreams for most prospective radio station builders.
The design is similar to MAXPRO8015+ and also looks quite similar at first glance, however it comes with on-board integrated digital stereo encoder with RDS. The result is a rugged and solid FM exciter with completely flat power output across the entire FM band at 15W, 25W, 50W or 100W designed to run silently 24/7. Since the new design featuring larger heatsink was so much better and completely stable we were able to add 50W and 100W models. Your dream FM exciter is a reality right now!
Manuals and drivers for most products are available under Additional Information tab above. When downloading drivers your browser might sometimes block the download and you have to allow it manually.
You can find the manual for some products also dito.
How is STMAX9000 series different from the older STMAX3015 series?
– Sinusuportahan ang DIP switch mode, gumagana din nang walang LCD
– Greatly improved stability and reliability
– Massive heatsink for 50W and 100W versions
– Completely rewritten software
– Can be controlled entirely via RS232 (no LCD unit required for this) terminal or your control unit, see photos below.
– 0.5W power limit jumper (bilang karagdagan sa 1W, 2W, 4W at 8W)
– New better modern output stage
– Improved output filter
– BNC or MCX antenna output connector (N, SO239-CB and BNC pigtails are available, they plug into MCX)
– Firmware of RF board is now upgradeable (requires USB to serial converter – our RS323 IO board)
– Compatible with old STMAX3015 board, audio input board and display, they will work
How is STMAX different from MAXPRO series?
– On-board stereo at RDS encoders.
– Integrated digital stereo and RDS modulators. This ensures very good audio, but creates spurious artefacts about -50dBc
– Lahat ng mga parameter ay maaaring iakma mula sa LCD, kabilang ang RDS RT, PS, PI at iba pa
– MAPRO line is for professional setups, the signal in STMAX is not as clean
– Can’t be used with MPX STL links as there is no MPX input that MAXPRO series has
Teknikal na mga detalye:
– RF Output Power: 0 to 15 Watts, 0-25W, 0-50W, 0-100W (fully variable via LCD in nice gradual steps), ang LCD power adjustment range ay maaari ding limitahan sa 0-1W, 0-2W, 0-3W, 0-4W … 0-15W, ito ay tapos na sa isang, 0-acting na may mga pagpipilian.
– Output connector: BNC female or MCX female
– Output Impedance: 50 Ohms
– Saklaw ng dalas: 87.5-108MHz
– PLL Steps: 50KHz-500KHz, adjustable
– Katatagan ng dalas: +/- 20Hz
– Spurious/Harmonic na pagtanggi: Harmonics: >50dB, Spurious: >-50dBc
– Power Supply 15W: 12-15V/2.5A
– Modelo ng Power Supply 25W: 12-15V/4.5A
– Power Supply 50W model: 12-15V/7A
– Power Supply 100W model: 12-15V/12A
– Power connector 15W, 25W (barrel type, center +), 50W and 100W model: New design with plugin with 2 screw terminals
– Quartz Locked PLL Frequency Control, DDS digital modulator
– Walang Kinakailangang Mamahaling Kagamitan sa Pagsubok
– Pagganap ng audio: Mas mababa sa 0.1% distortion, 20Hz-15KHz
– Kagaspangan ng output ng RF: Proteksyon ng SWR, proteksyon sa temp
- Proteksyon ng polarity, proteksyon sa temperatura
– Pre-emphasis, 50uS, 75uS o walang mapipili sa pamamagitan ng LCD
– Stereo pilot level adjustable sa pamamagitan ng LCD
– RDS pilot level adjustable sa pamamagitan ng LCD
– Naaayos ang antas ng MPX sa pamamagitan ng LCD
– Audio Input Impedance: 1Kohm, hindi balanse
– Antas ng Audio Input: -10dBu, +4dBu (mapipili mula sa LCD)
– Stereo na paghihiwalay: >50dB
– S/N ratio: >90 dB
– Sukat ng PC Board: 100x125mm
– Audio connectors: 2x RCA jack, 14-pin connector para sa external input board na may balanseng XLR inputs
– RF monitor: solder pad
Controlling STMAX9000 RF board via RS232 terminal (LCD not required)
The RF board board can be controlled with your own LCD display or computer via RS232. All you need is a terminal, the command syntax is very simple. For this to work you do not need any LCD display unit as RS232 port is on RF board itself. The protocol is very simple, this photo explains it all. The pinout of the RS232 header is explained on the board itself. Here is the manual explaining controlling STMAX3015 micro through serial port.
Advanced na graphics display na may VU meter at web control interface
Ito ang aming bagong advanced high performance graphics OLED display na may maraming hindi kapani-paniwalang bagong feature na hindi sinusuportahan ng mga mas lumang unit. Una sa lahat, nag-aalok ito ng isang malaking graphics OLED display, kumokonekta ito sa internet sa pamamagitan ng Ethernet at kaysa hinahayaan kang kontrolin ang unit sa pamamagitan ng web browser (hindi na kailangan ng windows software), hinahayaan ka nitong i-update ang firmware ng display at mga naka-attach na module na dati ay hindi posible, ang bawat display ay may dalawang kulay na maliwanag na VU meter, rotary button, at aluminum front panel na may plexiglass. Hinahayaan ka ng advanced na menu system na itakda ang lahat mula sa mismong display o sa web interface. Ito ay siyempre isang opsyonal na item. Para sa malawak na manu-manong tingnan sa ilalim ng tab na Karagdagang Impormasyon. Anumang mga katanungan magpadala sa amin ng isang email.
Ano ang RS232/USB IO board at bakit ko ito kailangan? HINDI KAILANGAN MAY OLED DISPLAY!
IO board is required, if you want to control STMAX9000+ remotely via PC. It plugs into the LCD control module and gives you USB port making it possible to connect STMAX card to PC computer and control it remotely. IO board is also needed to upgrade firmware of STMAX RF board.
OLED graphics display has its own IO board and does not require IO board! It has its own Ethernet adapter.
Para saan ang Ethernet remote control module? HINDI KAILANGAN MAY OLED DISPLAY!
Hinahayaan ka ng add-on card na ito na ikonekta ang transmitter na ito sa PC sa pamamagitan ng Ethernet network. Maaari mong kontrolin at subaybayan ang katayuan ng iyong transmitter sa Ethernet o Internet. Ito ay siyempre isang opsyonal na item. Nangangailangan ang card na ito ng RS232/USB IO habang nakasaksak ito dito.
Ang graphics LCD display ay may sariling USB at Ethernet IO board at hindi nangangailangan ng karagdagang IO board o ethernet module.
Para saan ang Audio Input Board?
Ang add-on card na ito ay nagdaragdag ng dalawang XLR balanced input at dalawang RCA connector at USB audio input. Ito rin ay may kasamang extra low pass filter, limiter at isang jumper para sa opsyonal na external audio input (mula sa mp3 player o iba pa). Ang mga input ay pinoprotektahan ng ESD at may mga RF filter. Ito ay siyempre isang opsyonal na item ngunit ito ay lubos na inirerekomenda at ito ay ginagawang mas madali ang buhay dahil maaari kang mag-install ng exciter na malayo sa mga audio input connectors. Mapapabuti din nito ang tunog, kung minsan ay kapansin-pansing.
Mayroon ding bersyon ng AES/EBU ng board na ito!
Ano ang Software+IOBOARD para sa pagpapalit ng logo?
This is a combination of special unlocked version of software and RS232 IO board, which is required to control STMAX9000+ remotely via PC/RS232. It plugs into the LCD control module. Software lets you change welcome text (logo); you can replace that text with your company name for example. Your customized text will be saved and used at every power-up. This is of course an optional item. Works only with classic LCD displays, not the new graphic OLED.
Ano ang pagbabago sa software para sa 76-108MHz?
Ito ang microcontroller IC na may binagong software na nagbibigay-daan sa mga STMAX unit na gumana mula 76MHz hanggang 108MHz. Upang magamit ito kailangan mong alisin ang orihinal na IC mula sa LCD control module (ito ay nasa isang socket) at ilagay ito na binago. Kaagad na lalawak ang saklaw ng dalas. Maaari kang bumalik sa karaniwang IC anumang oras. Maaaring bilhin nang hiwalay ang item na ito at gagana rin ito sa mga STMAX na unit na binili mo noong nakaraan (maliban kung talagang luma na ang mga ito). Tiyaking kumuha ng tamang bersyon para sa iyong display! Mahalaga: Ang LCD ay nagpapakita ng mas kaunting kapangyarihan kaysa sa aktwal na magagamit sa ibaba 76MHz. Gayundin, ang aktwal na lakas ng output ay maaaring medyo mas mababa sa ilalim ng 87MHz, kung magkano ang depende sa board ngunit kadalasan ay humigit-kumulang 20-30% na mas mababa sa 76MHz. Gayundin ang LCD mismo ay magpapakita ng mas kaunting kapangyarihan kaysa sa aktwal na ipinapadala. Kaya tandaan na ang iyong display ay maaaring magpapakita ng 5W ngunit 10-12W ang ipapadala.
What is the Empty enclosure for STMAX9000 for?
This is a very practical enclosure with all holes predrilled. You can install the STMAX9000 inside. It even has a heatsink so it will accept even the 25W, 50W or 100W version. A fan is not included, use 80×80 fan. Holes for the LCD are predrilled as well. No text or brand name is printed anywhere on this box. Look at the video below:
What else should I buy to construct a big 1000W or 2000W or higher transmitter?
Talagang inirerekomenda namin ang mga item na ito sa lahat ng user:
– Any of these mga papag dito, mabibili ang power supply para sa mga ito dito, don’t forget a salain (Ang serye ng LFMAX ay perpekto).
– Stereo encoder, any of ang mga ito gagawin. Ang SE8000 ay perpekto dahil sa MAXLINK II.
– A rack enclosure from 1H to 3H, with fans, accessories and more…
– Use PTFE RG142 50 ohm suyuin para sa mga panloob na koneksyon sa loob ng iyong rack (mas madaling gamitin ang PTFE coax, hindi ito natutunaw kapag mainit). Tiyaking napakaikli ng lahat ng mga coaxial cable lead.
Upang maghanap ng angkop na pagsusuri ng antenna: dito.
Upang maghanap ng angkop na coaxial cable check: dito.
Upang maghanap ng angkop na pagsusuri sa kaso: dito.
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