LT 250 :
20 MHz - 1000 MHz / 250 W CW


- Class A solid state
- Broadband (instantaneous single band): 20 MHz – 1000 MHz
- Typical output power : 250 W CW
- Linear output power guaranteed with harmonics < -20 dBc
- Air cooling: self contained fans
- Can operate in full mismatch conditions without damage
- Upgradable to N-LT 500 possible (7U)
- Reliable, efficient and robust
- 19" Rack
- 3 years standard warranty
VERSIONS :
- LT 250 S : standard amplifier
-
LT 250 D amplifier with:
- Multicolor LCD display with touch panel
- Digital control
- IEEE 488 GPIB, Ethernet, USB, RS232 Communications
- Temperature controlled fans
- Safety interlock
-
LT 250 SC : LT 250 S with
- Integrated dual directional coupler
-
LT 250 DC : LT 250 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 :
- EMC tests
- RF tests and instrumentation
- Radiocommunication
- Measurement and research laboratories

- Frequency bandwidth : 20 MHz - 1000 MHz
- Typical output power : 250 W
- Power at 3 dB compression : 180Wmin up to 80MHz/ 280Wmin from 80 to 450MHz/ 190Wmin from 450MHz to 1GHz
- Power at 1 dB compression : 130Wmin up to 80MHz/ 200Wmin from 80 to 450MHz/ 140Wmin from 450MHz to 1GHz
- Harmonics distortion : H2,H3 < -20 dBc for the output power at 1 dB compression
- Class type : Class A
- Gain : 51 dB
- Linear power gain flatness : ± 3.5 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 / + 45 °C (D version) or 0 °C / + 35 °C (S version)
- Room temperature storage : -20 °C / +70 °C
- Cooling : Forced air with fan speed control (for D version): 60 l/sec max. (self contained fans)
- Power voltage : 90-250 VAC, 47-63 Hz, single phase
- Rated current : 13.2 A at 110 VAC / 6.3 A at 230 VAC
- Dimensions : 640 x 450 x 178 mm (4U) / 25.2 x 17.7 x 7 in (4U)
- Weight : 28 kg / 67 lb
LT 250 D version :
- 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)
LT 250 SC and LT 250 DC versions :
- Integrated bidirectional power coupler : Coupling factor 40 dB typ. (for SC version) / 49 dB typ. (for DC version)
- Power coupling connector : Type N fem. (front or rear panel)
- Estimated output power losses due to the coupler : 0.3 dB

- External coupler
- Supply and integration inside a cabinet
- RF Power cable
- Switching unit
