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The Original Veronica® 1W PLL FM Transmitter (Ver. 12)
Our PLL FM transmitter is still the best selling sub-assemblies for broadcast engineers wishing to construct, assemble and experiment with their own designs. The dual varicap arrangement provides very low audio and phase distortion with excellent frequency response from low bass frequencies right through to 76 KHz making it highly compatible for RDS coders and aggressive audio processors. If that's not enough the noise level is almost immeasurable at more than -80dBu, this is achieved by using a lightly loaded high stability half frequency push-pull Hartley oscillator for generating the RF signal. The output of the Hartley oscillator is configured as a frequency doubler using a push-push arrangement, filtered and amplified by two high stability amplifiers to 1 watt.
Do You Have A Question?
| User Manual | Click Here |
| Frequency | 87.5 - 108 MHz |
| RF Output | 1W to 1.4W into 50 Ohm |
| Deviation Sensitivity Stability | +/-2% max |
| Spurious Emissions | 75dB rtc |
| Harmonic Emissions | 63dB rtc |
| Out of Lock RF Muting | 63dB rtc |
| Freq Stability | +/- 1 KHz max typ. +/-300Hz |
| RF Output Connector | Female N type |
| Audio Input Sensitivity | 0dBu for +/- 75 KHz |
| Signal To Noise Ratio | 80 dBu |
| Audio Response | Flat from 30Hz-76KHz |
| Pre-emphasis | (50uS/ 75uS/ None) |
| Audio Distortion | Better than 0.2 % THD |
| Audio Input | Unbalanced Terminal Block |
| Power Supply | 12-15V DC 650mA max |
Wide Band PLL Synthesizer
This PLL synthesizer is specially optimized for high quality wide band FM with selectable pre-emphasis. Not all PLL's are the same. Some manufacturers use modified radio receiver integrated circuits. These do work, but not that well as they are not designed to be modulated, they are designed to a fixed frequency local oscillator for receiving signals. Our wide band PLL reproduces digital recordings and other audio sources with the finest of clarity. Setting up the unit is made easy using the built in LED's that indicate power output and lock conditions.
26 Years of the Veronica PLL
The Veronica 1W PLL version 12. This model has got all the features of the previous models and more, all without virtually no increase in price. Customers who have purchased from us over the last 27 years know that radio is our passion and we do everything and anything to make sure we give you a product that is excellent in quality, high specification to meet the standards of regulators across the world and the lowest price we can possibly achieve.
Version 12 Improvements
RP2040 Pico microcontroller added to:
1. Control a Direct Digital Synthesis (DDS) frequency reference, this eliminates the previous crystal reference oscillator and the 12 way dip switches. Frequency control is now done by just two UP and DOWN buttons on the underside of the display.
2. Control the VCO tune voltage to the SMD varicaps
3. Control and adjust precisely the output power maintaining exactly 1000mW from 87.5 to 108 at 50 ohms
4. Shut down the RF output if it detects an unlocked condition
Fully Compatible With Stereo and RDS Coders
You can use our stereo coder with Veronica 1W PLL FM transmitter or you can use coders or software packages from other manufacturers. The MPX input is compatible with all known RDS coders, stereo coders and audio processors available in the market.
Professional Class
The Veronica PLL is known throughout the world as professional class equipment at excellent value for money. Thousands of stations throughout the world use Veronica PLL's in their transmitters and exciters for high quality broadcasting.
Veronica PLL History
The Veronica 1W PLL FM transmitter was first marketed in 1996. In early 1998 the PLL 2 was released and then in January 2000 the PLL 3 'Easy-Tune ™'.Without any amplifier tuning the PLL 3 produced a flat 1W output from 87 to 109 MHz and greater reliability with an improved cooler running broadband RF output amplifier using a 1.8W RF output device. In 2007 the PLL6 was released, this included the addition of a fine frequency adjustment to the reference crystal and dual varicaps for more linear modulation and better Deviation Sensitivity Stability as defined in ETS 300 384 (EU Spec.), this should be less than 3% from 0 to +40 Deg C, the PLL6 was better than 2% from -20 to +40 Deg C. This ensures that the deviation will stay almost constant whether you are in Siberia or Africa. On to 2009 and the PLL8 was born, this had the addition of a power control, an even higher rated output device (SD1127, capable of over 4W), and better than -60dB RF out of lock muting. Then additional improvements bringing us to version 10 then 11. 2024 version 12 includes a Pico microcontroller and DDS eliminating the 12 way dip switches, the legacy crystal oscillator and the manual VCO tune
Full Legacy Compatibility
The PLL sub-assembly is still compatible for repairing or re conditioning any Aareff / Veronica transmitter made since 1996. Virtually all the parts for the 1W PLL are readily available all over the world should you ever need spares. The ICs are the standard 74HCT... series, CMOS 4000 series and Pico RP2040
