MKU LO 12 PLL
PLL-stabilized Crystal Oscillator
Differenz frequencies (see table)
Now, an external 10 MHz reference frequency can be connected to achieve highest frequency accuracy. This is necessary for EME, WSJT and Tropo DX. The frequency of 10 MHz can be supplied by a highly stable OCXO, a reference oscillator of a frequency counter, a rubidium frequency standard or a GPS controlled frequency source.
If a 10 MHz reference frequency is not available, the internal crystal oscillator of the unit can be used. This crystal oscillator is frequency stabilized by our 40 °C precision crystal heater QH40A.
| Specifications | |
| Type | MKU LO 12 PLL |
| Available output frequencies | 11736 MHz, 11808 MHz 11952 MHz, 12024 MHz |
| 12648 MHz | |
| Output power | min. 35 mW |
| Frequency stability @ 0 ... 40 °C | typ. 2 ppm, max. 3 ppm (without 10 MHz reference frequency) |
| Supply voltage | +12 ... 14 V DC |
| Current consumption | 260 mA |
| Input connector / impedance | SMA-female, 50 ohms |
| Output connector / impedance | SMA-female, 50 ohms |
| External reference input | 10 MHz / 2 ... 10 mW (sine or square wave) |
| Case | German silver |
| Dimensions (mm) | 111 x 55 x 30 |
| Weight | typ. 140 g |
Features
- Multiplied, fixed frequency PLL-stabilized crystal oscillator
- Internal temperature stabilized crystal oscillator with QH 40 A
- Input for external 10 MHz reference frequency
- Automatic activation of PLL if external 10 MHz signal is supplied
- Lock Detect status: internal LED
- Over voltage and reverse polarity protection
- Helical filters and microstrip filters for high spurious and harmonic rejection
- Compact construction in a German Silver case
Applications
- Highly stable frequency source for transverter modules
Options
Accessories
- As a 10 MHz frequency source we recommend the GPS-stabilized oscillator by James Miller, G3RUH or the 10 MHz GPS-Frequency Standard by ID Elektronik, DK2DB
- GPS stabilized 10 MHz oscillator (James Miller, G3RUH)
- 10 MHz GPS-Frequency Standard (ID Elektronik, DK2DB)
- Specifications subject to change without notice -


