25W | DMR -Elektronik
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DDS Digitale Signalsynthese, ausgezeichnete Audio, On-Board-Stereo- und RDS
Die neuen STMAX 3015+ FM -Anreifer kombinieren mehr Funktionen zu einem kleinen Tafel als je zuvor. Mit DDS Digital Modulator, On-Board-Stereo und RDS und all diese vollsteuerbaren über LCD-Displays mit einem neuen 2-Ebenen-Menüsystem und Verfügbarkeit in 15W, 25W-Formaten, die alle aus 12-15 V betrieben sind Stationsbauer
Zubehör
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Mehr Infos
Product discription:
DDS digital signal synthesis, excellent audio, on-board stereo and RDS
The new STMAX 3015+ 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 formats all powered from 12-15V this unit represents realization of dreams for most prospective radio station builders.
The design of the STMAX 3015+ series is based on MAXPRO 6015+ 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, designed to run silently and cool 24/7. Since the new design featuring larger heatsink with copper spreader was so much better and completely stable. 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.
How is STMAX3000 series different from the MAXPRO6000 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 specs:
- RF Output Power: 0 to 15 Watts, 0-25W (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 connector 15W, 25W 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 15W, 25W : 100x125mm
- Audio connectors: 2x RCA jack, 14-pin connector for external input board with balanced XLR inputs
- RF monitor: solder pads