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OUR POPULAR 40W - 500W FM TRANSMITTERS WITH DSP AND RDS
New enhanced version is out! CYBER MAX FM+ is the first from a line of rack mounted FM transmitter series for demanding broadcasters, operating in the whole band II, from 87.5 to 108 MHz (extended Japanese
band can be ordered as well). This unit in large 2H 19" rack enclosure contains mains power supply and offers plenty of power (40W, 100W, 150W, 300W or 500W). Two large 80x80mm cooling fans with protection
mesh will take care of any excessive heat easily. Transmitter consists of a stereo encoder with pre-emphasis circuit, active low-pass filter, our professional series PLL synthesizer, wideband no-tune RF stage with
temp protection, good output RF filter and optional RDS and/or DSP processor. You can select the performance range (model A/B/C/D/E) that is most suitable for your budget. Unit is rugged and made for 24/7/365
operation, each comes with a wide-angle high contrast backlit LCD display. In our opinion the best quality/price ratio possible.
RDS parameters can be programmed with the help of a PC via serial RS232 connection (cable and software included).
This unit can give up to 45W (40W model), 175W (150W model), close to 350W (300W model) and close to 700W (500W model) clean RF power, but this is not recommended for long term operation (10-15W, 40, 150W,
300W, 500W is typical) .
Have a look at the manual (English)!
Have a look at the manual (Spanish)!
General features:
- Great stereo sound with excellent separation
- Standard 19" 2H rack, clean design and high quality manufacturing
- Low distortion and good Signal/Noise ratio
- Modular construction, internal boards can be replaced one by one
- Built-in CPU system for controlling and monitoring
- Easy change of frequency and other parameters (UP/DOWN keys, no tuning required)
- TEMP protection
- SWR protection
- Professional grade RDS encoder!
- Friendly user interface, keys can be locked with an internal jumper
- In our opinion the best quality/price ratio possible.
- Industrial quality and rugged switching-mode power supply
Technical specifications:
RF SECTION
- Output power: 40W/100W/150W/300W/500W depending on the model, adjustable internally
- Output impedance 50 unbalanced, VSWR less than 2:1 for full output
- Output connector N female (rear panel )
- Frequency range 87.5 to 108MHz
- Smallest PLL step 6.25KHz (12.5/25/50/100 can be selected as well)
- RF Spurious > -80 dBc @ +- 1MHz min. out of carrier
- RF Harmonics > -60 dBc Standard
- Monitoring Led: Power on, SWR/TEMP/PLL warning
- Modulation capability: FM
AUDIO SECTION
- Audio connectors: RCA (cinch) or XLR (DSP version)
- Audio level required: 1Vpp
- Audio input impedance: 10Kohms resistive, balanced
- Pre-emphasis Flat, 50 or 75usec
- Harmonic distortion ( THD ) <0.1% ( 0.05% typ. )
- Channel separation 50 dB min., ( 65 dB typ. ), 20Hz to 15kHz, DSP model
- S/N Ratio with CCIR unweighted: 80dB
- S/N Ratio with CCIR weighted: 78dB
- Frequency amplitude: 0.5dB, 30Hz - 15kHz
GENERAL
- AC mains power: 110-240V 50/60Hz universal, works everywhere on this planet
- Ambient temperature: -5° to +45°C
- External dimensions ( W x D x H ) 19" x depth (170mm) x height 2HE (88mm)
- Weight 4-6kg
Note: This popular unit is now available in 5 versions.
- Regular version has a regular stereo encoder; no DSP functions and no RDS
- DSP version has a profesional DSP stereo encoder, XLR inputs and no RDS
- DSP/RDS version has both; profesional DSP stereo encoder with XLR inputs and RDS encoder
- RDS/XLR version with a basic RDS encoder and XLR inputs, but without the benefits of DSP processing
- MONO version without stereo encoder for those with no need for stereo
| Model name
| DSP
processor | XLR
inputs | RDS
encoder | Full unit name | | Model A | No | No | No | CyberMaxFM+ | | Model B
(DSP) | Yes | Yes | No | CyberMaxFM+ DSP
| | Model C (RDS/XLR) | No | Yes |
Basic |
CyberMaxFM+ RDS/XLR | | Model D (DSP/RDS) | Yes | Yes |
Professional |
CyberMaxFM+ DSP/RDS | | Model E (MONO) | No | No | No | CyberMaxFM+
MONO |
What are the benefits of DSP stereo encoder?
Very shart input filters with a deep 19KHz notch, advanced signal processing with compressor and limiter, all adjustable via LCD display. The number of settings is indeed quite fascinating, you can also set
gain for each audio channel, compression ratio etc.
How much range can I expect?
You can read more about range in this guide HERE.
300W can give you up to 40km of range in favourable
conditions with good antenna high above terrain and good receivers used on the other side. For solid coverage on most receivers you need a lot more power to solidly cover 40km so take this estimate with a grain
of salt.
What is RDS?
Radio Data System, basically it displays station name and sometimes song name and similar information on a compatible radio receiver. Very popular in Europe, less so in the US. Requires connection to a PC at the
time of programming, but retains settings even when powered off. Serial programming cable for COM port is included.
What are XLR inputs?
These are balanced audio inputs, usually used by professionals. Their advantage is immunity to noise and ground loops. Hum and other noise artefacts that sometimes torment operators due to ground loops usually
magically dissapear once XLR inputs are used.
WHAT CAN I USE AS AUDIO SOURCE?
- Your PC. Just plug audio cable into your sound card.
- CD player, MP3 player or any other music reproduction system
- Mixing board with microphone and other audio gear
WHAT ELSE WILL I NEED AND IT WASN'T INCLUDED?
- Requires mains cable, which can be purchased in your country (each country has a different mains plug and we don't carry all). This is standard cable used in your PC for example and its price is typically around 1
US$ and less. You can get it in any electronics store, such as radio shack, circuit city, any computer store etc.
- You will also need antenna, you can order one HERE
- You will also coaxial cable to connect antenna and transmitter, you can order it HERE
- You will probably need some connectors as well, it is good to have several adapters ready as well as they always come handy, check HERE
- You will need audio source (mixer, cd player, microphone etc). It is a good idea to use PC as audio source and run some kind of audio scheduling software, such as Jazler, Raduga or winamp. Winamp plugins
such as rocksteady exist and can make your sound even better.
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