MKU LO 8-13 PLL-2, Oscillator

54 ... 13600 MHz

- Frequency freely configurable
- Remote control
- Intuitive operation
- High Resolution
- Synchronisable also with other modules
- 1 Hz accurate setting

The oscillator unit MKU LO 8-13 PLL was designed as a universal local oscillator source and covers the frequency range from 8.4 GHz to 13.6 GHz. The oscillator can be operated as well in the frequency range between 54 MHz and 6.85 GHz, allowing the use in manifold applications. The user can choose frequencies from a standard frequency list or programm it’s own output frequency in the oscillator unit. The frequency resolution is 1 Hz. Absolute frequency accuracy and stability can be achieved by supplying an external 10 MHz reference frequency, which can be distributed via output REF OUT to additional modules. Control of MKU LO 8-13 PLL is via a serial interface, e.g. using a terminal program and a respective TTL-USB serial converter. Firmware updates are managed via serial interface. MKU LO 8-13 PLL can alos be operated in a stand-alone mode.

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Technical specifications

Output frequency	8400 ... 13600 MHz
Output frequency 2	54 ... 6850 MHz
Output power	typ. 20 mW
Frequency accuracy @ 18°C	+/- 1 ppm
Frequency stability @ 0 40 °	+/- 1 ppm
CW keying (telegraphy)	A1
CW input connector	PIN / Pinheader
Phase noise @ 100 Hz	typ. -67 dBc/Hz
Phase noise @ 1 kHz	typ. -88 dBc/Hz
Phase noise @ 10 kHz	typ. -89 dBc/Hz
Phase noise @ 100 kHz	typ. - 99 dBc/Hz
Phase noise @ 1 MHz	typ. -124 dBc/Hz
External reference frequency	10 MHz / 2 ... 10 mW (sine or sqare wave)
Maximum case temperature	+55 °C
Supply voltage	+12 ... 14 V DC
Current consumption	typ. 300 mA
Input (external oscillator)	SMA-female / 50 ohms
Output / Impedance	SMA-female / 50 ohms
Case	milled aluminium
Dimensions (mm)	100 x 60 x 13
Weight	140 g

Accessories

KU EDPU - 5.0 External Display Unit

KU UIB-A - User Interface Board A

USB to TTL level serial UART converter cable

In a most common communication system, frequency conversions are performed in both transmitting and receiving side to move the baseband signal to the RF band and vice versa. The conversion is performed on basic by multiplying the baseband signal and a sinus signal, which is provided by the local oscillator (LO). The LO offers repetitive signals without input signals and is one of the key components in the whole HF transceiver.
The frequency bands are narrow and occupied by different communication standards. To achieve a high-quality communication, the LO signal should be pure and stable, and in some case also tunable, to move signals from different frequencies to the same frequency. Therefore, the most common implementation of the LO module is the phase-lock loop (PLL).
Kuhne electronic provide varieties of external LO modules, using different oscillators including VCXO (Voltage-Controlled Crystal Oscillator), TCXO (Temperature-Controlled Crystal Oscillator) and so on. These products support different microwave transverters for different frequency bands with high quality. Especially for the radio amateurs we provide 116 MHz LO for eg. 2-meter-band transverter, 12672 MHz LO for eg. 23-cm-band transverter etc. The output power of the local oscillator module is from 1 mW to 20 mW to match the power requirement of the mixer. Our LO modules are stable and accurate considering the changing temperature factors. In case a more accurate signal is needed, users can connect an external 10 MHz signal to the LO module as reference.Some using cases are given here as examples: the MKU LO 12, 24 GHz Local oscillator module (LO) together with the 24 GHz transverter MKU 24 G2 144, transmit the IF 144 MHz to the 24 GHz band, which includes scientific, Industrial and Medical (ISM) band from 24 GHz to 24.25 GHz. Another application is 76 GHz transverter MKU 76 G2 combining with external local oscillator MKU LO 8-13 PLL, can be used in Radar communication such as automobile communication. Other applications please check our homepage.