Deskripsi
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 di sini.
How is STMAX9000 series different from the older STMAX3015 series?
- Mode sakelar DIP didukung, berfungsi juga tanpa 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.
– Jumper batas daya 0,5W (selain 1W, 2W, 4W dan 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?
– Encoder stereo dan RDS terpasang.
– Integrated digital stereo and RDS modulators. This ensures very good audio, but creates spurious artefacts about -50dBc
– Semua parameter dapat disesuaikan dari LCD, termasuk RDS RT, PS, PI dan lainnya
– 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
Spesifikasi teknis:
– RF Output Power: 0 to 15 Watts, 0-25W, 0-50W, 0-100W (fully variable via LCD in nice gradual steps), LCD power adjustment range can also be limited to 0-1W, 0-2W, 0-3W, 0-4W … 0-15W, 0-full, this is done with a jumper (exact options vary depending on model).
– Output connector: BNC female or MCX female
– Impedansi Keluaran: 50 Ohm
– Rentang frekuensi: 87,5-108MHz
– Langkah PLL: 50KHz-500KHz, dapat disesuaikan
– Stabilitas frekuensi: +/- 20Hz
– Penolakan Palsu/Harmonik: Harmonik: >50dB, Palsu: >-50dBc
– Catu Daya 15W: 12-15V/2.5A
– Catu Daya 25W model: 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
– Kontrol Frekuensi PLL Terkunci Kuarsa, modulator digital DDS
– Tidak Perlu Alat Uji Mahal
– Performa audio: Distorsi kurang dari 0,1%, 20Hz-15KHz
– Kekasaran keluaran RF: perlindungan SWR, perlindungan suhu
- Perlindungan polaritas, perlindungan suhu
– Pre-emphasis, 50uS, 75uS atau tidak ada yang dapat dipilih melalui LCD
– Level pilot stereo dapat disesuaikan melalui LCD
– Level pilot RDS dapat disesuaikan melalui LCD
– Level MPX dapat disesuaikan melalui LCD
– Impedansi Input Audio: 1Kohm, tidak seimbang
– Level Input Audio: -10dBu, +4dBu (dapat dipilih dari LCD)
– Pemisahan stereo: >50dB
– Rasio S/N: >90 dB
– Ukuran Papan PC: 100x125mm
– Konektor audio: jack 2x RCA, konektor 14-pin untuk papan input eksternal dengan input XLR seimbang
– Monitor RF: bantalan solder
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.
Tampilan grafis tingkat lanjut dengan VU meter dan antarmuka kontrol web
This is our new advanced high performance graphics OLED display with many incredible new features that older units did not support. First of all, it offers a large graphics OLED display, it connects to internet via Ethernet and than lets you control the unit via web browser (no windows software needed anymore), it lets you update firmware of the display and attached modules which before was not possible, each display comes with two-color bright VU meter, rotary button, and aluminum front panel with plexiglass. Advanced menu system lets you set everything either from the display itself or the web interface. This is of course an optional item. For extensive manual look down under Additional Information tab. Any questions send us an email.
What is the RS232/USB IO board and why do I need it? NOT NEEDED WITH 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.
What is the Ethernet remote control module for? NOT NEEDED WITH OLED DISPLAY!
Kartu tambahan ini memungkinkan Anda menghubungkan pemancar ini ke PC melalui jaringan Ethernet. Anda dapat mengontrol dan memantau status pemancar Anda melalui Ethernet atau Internet. Ini tentu saja merupakan item opsional. Kartu ini memerlukan RS232/USB IO saat dihubungkan ke dalamnya.
Graphics LCD display has its own USB and Ethernet IO board and does not require extra IO board or ethernet module.
Untuk apa Papan Input Audio?
Kartu tambahan ini menambahkan dua input seimbang XLR dan dua konektor RCA plus input audio USB. Itu juga dilengkapi dengan filter low pass ekstra, limiter dan jumper untuk input audio eksternal opsional (dari mp3 player atau yang lainnya). Inputnya melindungi ESD dan memiliki filter RF. Ini tentu saja merupakan item opsional tetapi sangat disarankan dan ini membuat hidup lebih mudah karena Anda dapat memasang exciter jauh dari konektor input audio. Ini akan meningkatkan suara juga, terkadang secara dramatis.
Ada juga versi AES/EBU dari board ini!
Apa Software+IOBOARD untuk mengubah 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.
Apa modifikasi dengan perangkat lunak untuk 76-108MHz?
Ini adalah IC mikrokontroler dengan perangkat lunak yang dimodifikasi yang memungkinkan unit STMAX bekerja dari 76MHz hingga 108MHz. Untuk menggunakan ini, Anda harus melepaskan IC asli dari modul kontrol LCD (terletak di dalam soket) dan tempatkan modifikasi ini. Rentang frekuensi segera akan diperluas. Anda dapat mengubah kembali ke IC standar kapan saja. Item ini dapat dibeli secara terpisah dan juga akan berfungsi dengan unit STMAX yang Anda beli sebelumnya (kecuali jika benar-benar sudah tua). Pastikan untuk mengambil versi yang benar untuk tampilan Anda! Penting: LCD menunjukkan daya yang lebih kecil daripada yang sebenarnya tersedia di bawah 76MHz. Juga daya keluaran aktual mungkin sedikit kurang di bawah 87MHz, berapa banyak tergantung pada papan tetapi biasanya sekitar 20-30% lebih sedikit pada 76MHz. Juga LCD itu sendiri akan menunjukkan daya yang lebih kecil daripada yang sebenarnya sedang dikirim. Jadi perlu diingat bahwa tampilan Anda mungkin akan menampilkan 5W tetapi 10-12W akan ditransmisikan.
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?
Kami sangat merekomendasikan item ini untuk semua pengguna:
– Any of these palet di sini, catu daya untuk ini dapat dibeli di sini, don’t forget a Saring (Seri LPFMAX sangat ideal).
– Stereo encoder, any of ini akan melakukan. SE8000 ideal karena MAXLINK II.
– A rack enclosure from 1H to 3H, with fans, accessories and more…
– Use PTFE RG142 50 ohm membujuk untuk koneksi internal di dalam rak Anda (PTFE coax lebih mudah digunakan, tidak meleleh saat panas). Pastikan semua lead kabel koaksial sangat pendek.
Untuk mencari pemeriksaan antena yang cocok: di sini.
Untuk mencari pemeriksaan kabel koaksial yang cocok: di sini.
Untuk mencari pemeriksaan kasus yang cocok: di sini.
Ulasan
Belum ada ulasan.