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STMAX3015+/3025+/3050+/3100+ stereo RDS exciter
[15W, 25W, 50W, 100W]

DDS digital signal synthesis, excellent audio, on-board stereo and RDS

The new STMAX 3000+ series FM exciters combine more features into a small board than ever before. With DDS 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 and 50W formats all powered from 12-15V and 100W model powered from 48V this board represents realization of dreams for most prospective radio station builders.

The design of the STMAX 3000+ series is based on MAXPRO6015+ and also looks quite similar at first glance, however it comes with on-board DDS modulator and DSP 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!

The exciter carries a one year limited warranty on parts and labor against defects in materials and workmanship, except the RF final transistor.

You can find the manual for this (and other products) here.

How is STMAX3000 series different from the MAXPRO8000 series?
- On-board stereo and RDS encoders.
- New larger heatsink
- DDS digital modulator. This ensures very good audio, but creates spurious artefacts about -50dBc
- All parameters adjustable from the LCD, including RDS RT, PS, PI and others
- 2- level menu system groups similar parameters together making adjustment easier
- Comes also with new LCD with rotary encoder. This new LCD offers password protection and other cool features.
- Can't be used with MPX STL links as there is no MPX in

Technical specifications:
- 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
- Output Impedance: 50 Ohms
- Frequency range: 87.5-108MHz
- PLL Steps: 100KHz-500KHz, adjustable
- Frequency stability: +/- 20Hz
- Spurious/Harmonic rejection: Harmonics: >50dB, Spurious: >-50dBc
- Power Supply 15W: 12-15V/2.5A
- Power Supply 25W model: 12-15V/4.5A
- Power Supply 50W model: 12-15V/6A
- Power Supply 100W model: 48V/4A
- Power connector 15W, 25W, 50W and 100W model: New design with plugin with 2 screw terminals or standard barrel with 2.1mm positive center pin
- Quartz Locked PLL Frequency Control, DDS digital modulator
- No Expensive Test Equipment Required
- Audio performance: Less than 0.1% distortion, 20Hz-15KHz
- RF output ruggedness: SWR protection, temp protection
- Polarity protection, temp protection
- Pre-emphasis, 50uS, 75uS or none selectable via LCD
- Stereo pilot level adjustable via LCD
- RDS pilot level adjustable via LCD
- MPX level adjustable via LCD
- Audio Input Impedance: 1Kohm, unbalanced
- Audio Input Level: -10dBu, +4dBu (selectable from LCD)
- Stereo separation: >50dB
- S/N ratio: >90 dB
- PC Board Size: 100x125mm
- Audio connectors: 2x RCA jack, 14-pin connector for external input board with balanced XLR inputs
- RF monitor: solder pads

What is the Predrilled LCD front panel?
- This is a rectangular piece of aluminum with predrilled holes for LCD display, 3 buttons and LED diodes. It also has 4 holes in the corner so you can easily mount this to your case. This makes it much easier to mount the transmitter into a nice looking case (eliminates the hard work with the LCD). This is of course an optional item.

What is the RS232/USB IO board and why do I need it?
IO board is required, if you want to control STMAX3000+ remotely via PC. It plugs into the LCD control module.

What is the Ethernet remote control module for?
This add-on card lets you connect this transmitter to the PC via Ethernet network. You can control and monitor the status of your transmitter over Ethernet or Internet. This is of course an optional item.

What is the Audio Input Board for?
This add-on card adds two XLR balanced inputs and two RCA connectors plus USB audio input. It also comes with extra low pass filter, limiter and selectionable optional external input (mp3 player or something else). The inputs are ESD protect and have RF filter. This is of course an optional item but it is highly recommended and it does make life easier as you can install exciter far from the input connectors.

What is the Software+IOBOARD for changing logo?
This is a combination of special unlocked version of software and RS232 IO board, which is required to control STMAX3015+ 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.

What is PCSLPF6000+ 1KW PTFE LPF with DIGIAMP?
This is a low pass filter with directional coupler (power and SWR meter) that simply connects to STMAX3015+ via flat cable. Only used when you install this exciter in an enclosure together with amplifier. It can than be connected between the exit from amplifier and antenna connector to provide power, swr, temperature and voltage information to the FM exciter. Flat cable is ordered separately (DIGIAMP flat cable). You can read more about this in the manual.

What is the Empty enclosure for STMAX3050 for?
This is a very practical enclosure with all holes predrilled. You can install the STMAX3015 inside. It even has a heatsink so it will accept even the 25W, 50W or 100W version. A fan is not included, use 80x80 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 500W or 1000W or higher transmitter?
We really recommend these items to all users:
- LPF 6000 or 7000 series filter (described above), more info on these available here. 6000 and 7000 series filters are easier to connect (use digiamp flat cable).
- Any of these pallets here, a power supply for these can be purchased here
- A rack enclosure from 1H to 3H, with fans, accessories and more...
- Use teflon RG142 50 ohm coax for internal connections inside your rack (teflon coax is easier to work with, it does not melt when hot). Make sure all coaxial cable leads are very short.
- Warning: Only suitable for remote areas

To look for a suitable antenna check: here.
To look for a suitable coaxial cable check: here.
To look for a suitable case check: here.

Ta izdelek smo dodali na spletno stran Sr 13 Feb, 2016.
 *Izberite količino za vsak izdelek, ki ga želite, in kliknite gumb 'Dodaj v voziček' spodaj.
Prikazujem 1 do 16 (od 16 izdelkov) Strani rezultatov:  1 
    Ime   Model   Izberi   Cena+ 
Pre-drilled LCD panel (3 keys)  Pre-drilled LCD panel (3 keys)     4.99EUR
DDV se doda na koncu
Universal 14-pin DIGIAMP flat cable (40cm) with connectors  Universal 14-pin DIGIAMP flat cable (40cm) with connectors     5.99EUR
DDV se doda na koncu
15W replacement final transistor for STMAX3015+  15W replacement final transistor for STMAX3015+     19.99EUR
DDV se doda na koncu
25W replacement final transistor for STMAX3025+  25W replacement final transistor for STMAX3025+     24.99EUR
DDV se doda na koncu
Enclosure for STMAX3000 series with power switch board  Enclosure for STMAX3000 series with power switch board     39.99EUR
DDV se doda na koncu
Remote control IO board (USB+RS232+3xBNC) + 20cm 6-pin flat cabl  Remote control IO board (USB+RS232+3xBNC) + 20cm 6-pin flat cabl     39.99EUR
DDV se doda na koncu
Audio input board (RCA+XLR+USB) + 20cm flat cable  Audio input board (RCA+XLR+USB) + 20cm flat cable     49.99EUR
DDV se doda na koncu
1H 19-inch rack (3-keys, space for audio and IO board)  1H 19-inch rack (3-keys, space for audio and IO board)   3015, 3025, 3050, 3100  64.99EUR
DDV se doda na koncu
DDV se doda na koncu
PCSLPF7000+ 1.5KW PTFE LPF with DIGIAMP  PCSLPF7000+ 1.5KW PTFE LPF with DIGIAMP     119.99EUR
DDV se doda na koncu
STMAX3015+ 4W with LCD display (Stereo + RDS)  STMAX3015+ 4W with LCD display (Stereo + RDS)   4W, 12V  139.99EUR  138.99EUR
DDV se doda na koncu
STMAX3015+ 15W with LCD  display (Stereo + RDS)  STMAX3015+ 15W with LCD display (Stereo + RDS)   15W, 12V  149.99EUR
DDV se doda na koncu
STMAX3025+ 25W with LCD display (Stereo + RDS)  STMAX3025+ 25W with LCD display (Stereo + RDS)   25W, 12V  159.99EUR
DDV se doda na koncu
STMAX3100+ 100W with LCD display (Stereo + RDS)  STMAX3100+ 100W with LCD display (Stereo + RDS)   100W, 48V  229.99EUR  199.99EUR
DDV se doda na koncu
STMAX3050+ 50W with LCD display (Stereo + RDS)  STMAX3050+ 50W with LCD display (Stereo + RDS)   50W, 12V, two finals  239.99EUR
DDV se doda na koncu
STMAX3125+ 125W with LCD display (Stereo + RDS)  STMAX3125+ 125W with LCD display (Stereo + RDS)   125W, 48V  259.99EUR
DDV se doda na koncu
Prikazujem 1 do 16 (od 16 izdelkov) Strani rezultatov:  1 
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