TR 2320 H-2304
Transverter for 13 cm
2304 ... 2306 MHz
Over 25 years of experience in development of new transverter technologies led to this masterpiece of VHF technology. Implementing technological innovations and expertise in a timely manner and combining them into a state-of-the-art product is a thing we have succeeded in doing in a very impressive way. It's a challenge for us to extend the limits of what is technically feasible and to put this into our products. Ranking first worldwide and improving our products continously are a matter of course for us.
Several decades of engineering and production of Transverters result in this new 13cm high performance Transverter. His outstanding technical data make it usable for many applications. The high linear GaAs-FET-Amplifier with an output power of up to 15W allows a stand-alone operation as well as driving a power amplifier. The consequent usage of SMD components results in a noise figure of typ. 1.5dB. Several operation configurations allow an easy connection of a preamplifier and/or power amplifiers. The case allows the installation of further filter elements, attenuators, oscillators or other components.
The new design of our 13 cm transverter features better performance and many new functions.
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 transverter can be used. This crystal oscillator is frequency stabilized by our 40 °C precision crystal heater QH 40 A.
The oscillator signal of 120 MHz is generated by a low-noise and temperature-compensated oscillator. This circuit uses a precision crystal with 40° crystal heater. The phase noise of the output signallies at far under -132 dBc/Hz@10kHz which is better as the used 144 MHz transceivers. After the oscillator a tripler follows with the BFR92A.After a helical-filter the frequency 360 MHz is selected and coupled to another tripler with BFG93A. After a further helical-filter which is adjusted to 1080 MHz the signal reaches a doubler stage with BFG93A. Another helical filter selects the 2160 MHz signal which goes to the ring mixer.
The receiver works with a low-noise HEMT-FET preamplifier stage with an own noise figure of 0.9 dB. After this one follows amultilayer-ceramicfilter and a MMIC amplifier stage. At next the signal reaches the RX/TX PIN-diode switch followed by a helical-filter and is brought to the ring mixer. For the operation of an external preamplifier via a separate coaxial cable a second N connector isalready built-in.
The IF input power is internally preset table in the area of 0.5 - 5 watts. The signal passes a helical-filter after the mixer and reaches the first MMIC driver stage. After the selection by another helical-filter thesecond MMIC driver stage follows. The driving signal goes to the 30W GaAs-FET-power-amplifier. To guarantee a clean output signal, the final stage is operated only with 15 W. A 5-pole harmonic filter realizes a spurious and harmonic suppression of over 50 dB. A directional couplerwith a Schottky-diode makes the calibrated indication of the output power possible at the built-in meter.
The built-in sequence controller makes a time controlled operation of a high-quality power amplifier and a coaxial relay possible with preamplifier directly at the antenna. Connections for this are at the equipment back side.
|Type||TR 2320 H - 2304|
|Frquency range||2304 ... 2306 MHz (Standard)|
|IF frequency range||144 ... 146 MHz|
|IF input power||0,5...5 W, adjustable|
|LO accurarcy @ 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)|
|PTT control||contact closure to ground or +12 V on the IF-cable at TX|
|Supply voltage||15 W|
|External reference input||10 MHz / 2 ... 10 mW|
|Supply voltage||+13.8 V DC (+12 ... 14 V DC)|
|Current consumption||typ. 6 A (TX)|
|RX gain||min. 20 dB|
|Noise figure||typ. 1.5 dB|
|Dimensions (mm)||270 x 260 x 80|
|IF connectors / impedance||BNC-female/ 50 ohms|
|RF connectors / impedance||N-female/ 50 ohms|
|Reference input connector||BNC-female/ 50 ohms|
|DC supply voltage and control connector||SUB-D 9 pole|
- Additional input for 10 MHz reference frequency
- Automatic activation of PLL if external 10 MHz signal is supplied
- Aluminium case with a big heat sink
- Inside wiring with silver plated Teflon coaxial cable
- Antenna relay with 45dB cross-talk attenuation
- Converter can process large signals
- Extension with additional filters and other components
- Built-in directional coupler for calibrated power output control
- 5-pole low-pass filter for harmonic wave suppression
- Spurious and harmonic wave suppression better 50dBc
- Phase noise of the oscillator better -132dBc/Hz@10kHz
- Built-in sequence control
- Including dc-power and control cable
- RX cable
- TX cable
- IF cable
- 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)
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