DR 75

Class A solid state
Broadband (instantaneous single band): 9 kHz –400 MHz
Frequency extension between 4 kHz and 9 kHz upon request
Typical output power : 75 W CW
Linear output power (1 dB compression) guaranted with harmonics <-20 dBc:
- P1dB > 35 W and H<-20 dBc at 9 kHz
- P1dB > 40 W and H<-20 dBc from 10 kHz to 20 kHz
- P1dB > 55 W and H<-20 dBc from 20 kHz to 400 MHz
Air cooling: self contained fans
Can operate in full mismatch conditions without damage
Reliable, efficient and robust
19" Rack
3 years standard warranty

VERSIONS :

DR 75 D amplifier with:
- Multicolor LCD display with touch panel
- Digital control
- IEEE 488 GPIB, Ethernet, USB, RS232 Communications
- Temperature controlled fans
- Safety interlock
DR 75 SC : DR 75 S with
- Integrated dual directional coupler
DR 75 DC : DR 75 D with :
- Integrated dual directional coupler
- Display of instantaneous incident and reflected power

MAINTENANCE :

Amplifier designed for minimal maintenance
- Easy access to all parts
- Modular design
- Repairs with minimum adjustments
Rapid diagnostic
Minimal downtime
Contract for preventive and corrective maintenance available

APPLICATIONS :

Download the datasheet

Frequency bandwidth : 9 kHz - 400 MHz
Typical output power : 75 W
Power at 3 dB compression : 40W min at 9 kHz/ 50W min from 10 to 20 kHz/ 60W min from 20 kHz to 400 MHz
Power at 1 dB compression : 35W min at 9 kHz/ 40W min from 10 to 20 kHz/ 55W min from 20 kHz to 400 MHz
Harmonics distortion : H2,H3 < -20 dBc for the output power at 1 dB compression limit
Class : Type class A
Gain : 48 dB
Linear power gain flatness : ± 2.5 dB max
Mismatch tolerance : Infinite without damage
Input impedance : 50 ohms / VSWR: 2:1max
Output impedance : 50 ohms / VSWR: 2:1max
Input power : +10 dBm max.
RF input connector : Type N fem. (front or rear panel) – other connector type on request
RF output connector : Type N fem. (front or rear panel) – other connector type on request
Ambient operating temperature : 0 °C / + 35 °C
Room temperature storage : -20 °C / +70 °C
Cooling : Forced air with fan speed control (for D version): 20 l/sec max. (self contained fans)
Power voltage : 90-250 VAC, 47-63 Hz, single phase
Rated current : 4.1 A at 110 VAC / 1.9 A at 230 VAC
Dimensions : 640 x 450 x 89 mm (2U) / 25.2 x 17.7 x 3.5 in (2U)
Weight : 10 kg / 26.5 lb

Safety interlock : Connector type BNC
Digital control : Transistors, power supplies, temperatures and fans
Communication interface : Ethernet, USB, GPIB, RS232
Color LCD Display with touch screen : Status, faults, (direct and reverse instantaneous power for DC version)

Integrated bidirectional power coupler : Coupling factor 40 dB typ. (SC version) / 49 dB typ. (DC version)
Power coupling connector : Type N fem. (front or rear panel)
Estimated output power losses due to the coupler : 0.3 dB