MKU 34 G3
Transverter
3400 ... 3402 MHz
The new design of our transverter for 3.4 GHz features better performance and many new functions.
Now,an external 10 MHz reference frequency can be connected to achievehighest frequency accuracy. This is necessary for EME, WSJT and TropoDX. The frequency of 10 MHz can be supplied by a highly stable OCXO, areference oscillator of a frequency counter, a rubidium frequencystandard or a GPS controlled frequency source.
If a 10 MHz referencefrequency is not available, the internal crystal oscillator of thetransverter can be used. This crystal oscillator is frequencystabilized by our 40 °C precision crystal heater QH40A.
A biggerattenuator at the IF input port allows an input power of up to 5 watts.Great large signal performance is achieved by the use of a high-levelring mixer. Self-resettable polyfuses prevent damages of thetransverter module, especially if it is used in a portable station. Ofcourse, all the well-tried functions of the old transverter version arekept in the new design!
The small mechanical dimensions of thetransverter, which is designed in SMD technology, allow theconstruction of a small portable station as well as a powerful homestation.
| Specifications | |
| Type | MKU 34 G3 |
| Frequency range (RF) | 3400 ... 3402 MHz |
| Frequency range (IF) | 144 ... 146 MHz |
| LO accuracy @ 18 °C | typ. +/- 2 ppm, max. +/- 3 ppm (without 10 MHz reference frequency) |
| LO frequency stability (0 ... +40 °C) | typ. +/- 2 ppm, max. +/- 3 ppm (without 10 MHz reference frequency) |
| Output power | typ. 400 mW |
| IF input power | max. 5 W, adjustable (0.5 ... 5 W) |
| Noise figure @ 18 °C | max. 0.9 dB |
| Receive gain | min. 20 dB, adjustable |
| Supply voltage | +12 ... 14 V DC |
| Current consumption | typ. 0.4 A (TX) |
| OCXO in | 10 MHz / 2 ... 10 mW (sine or square wave) |
| PTT voltage (to the IF connector) | +3 ... 14 V DC |
| Coaxial connectors / impedance | SMA-female, 50 ohms |
| Case | German silver |
| Dimensions (mm) | 150 x 55 x 30 |
| Weight | typ. 190 g |
Block diagram
Different system versions
Features
New features of the transverter MKU 34 G3
- Additional input for 10 MHz reference frequency
- Internal stabilized oscillator with precision crystal heater (can be used instead of 10 MHz reference frequency)
- Higher output power
- Bigger attenuator at the IF input for input power up to 5 watts
- Fuses are self-resettable (polyfuses)
Well-tried functions and features - based on MKU 34 G2
- Super low noise converter in the receive path
- Transmit gain and receive gain separately adjustable
- Control output for additional amplifier stages or a coaxial relay
- PTT can be switched by voltage on the IF connector or by connecting the PTT pin to ground
- Detector output (DC voltage) for monitoring the output power
Applications
Options
- Professional: Transverter available in milled aluminium case
- Dimensions as PDF
- USA: Frequency range (RF) 3456 ... 3458 MHz
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)
References
- Alle Angaben ohne Gewähr -
