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Pulsed RF Amplifier Data Sheet
BT-Gamma series 5MHz-200MHz
250W

The BT-Gamma series is a range of class AB RF power amplifiers covering the 5-200MHz frequency range.

Suitable for pulsed radar, NMR, MRI, NQR, EPR, ultrasounds systems and other scientific applications

BT-Gamma series 5MHz-200MHz


Model numbers	BT00250-Gamma
Peak output power for 0dBm drive	250W minimum¹
Peak output power at 1dB compression	200W minimum²
Type	Class AB MOSFET
Frequency	5MHz - 200MHz
Gain flatness	±1.5dB maximum
Duty cycle	20% maximum³
Maximum pulse width	10ms or 100ms⁴
CW mode	25W typical⁵
Pulse droop	5% maximum
Phase change with power	<5° from -40dB to full power
Phase stability	<1° over 100ms pulse
Harmonics	Odd: -12dBC maximum Even:-20dBc maximum
Spurious	<-70dBc maximum
Rise/fall times	<100ns typical
Output noise (blanked)	<10dB above thermal (1MHz bandwidth)
Load SWR	Tolerates at least 3:1 at full rated power without shutdown⁶
Gate delay	1µs maximum
Output sample	-40dB into 50
Input/output impedance	50 nominal
Indicators	DC Power Output Enable RF Power Over-temp Over-duty Load mismatch
Status monitoring interface	Optional: RS232, RS422, RS485 supported
Cooling	Forced air
Drive signals: RF drive RF gate (blanking)	0dBm nominal, 10dBm for no damage 0-5V CMOS
Dimensions	19" x 600mm x 128mm
Connectors	RF output: N type RF input, gate, sample: BNC
Primary power	110-240V, 50-60 Hz, single phase 1kVA maximum
Compliance	CE
¹ Input power=1mW ²Maximum output power at 1dB gain compression ³Maximum gate duty cycle. Higher values available ⁴Maximum gate pulse width. Higher values available ⁵ CW operation automatically available at RF drive level ~-10dBm ⁶Self resetting protection shuts the amplifier off if the load SWR is excessive ⁷ 3RU x 19" rack mounting ⁸ 3 pin IEC. Mains must include an earth.