Dressler LPPA 20010 RF Power Amplifier NMR, MRI, Proton

These items are sophisticated and high performance pulsed RF power amplifiers designed specifically for NMR and MRI applications. All four units are factory fresh and on-the-shelf. They are fully tested and warranted for one year from the time of purchase. Factory test data will be included.

These items are scientific instruments and not applicable to any type of communications applications. If you have any questions, please ask. All sales are final and we can not accept any returns. The normal list price on these items is $19,990.00 and delivery is 18 weeks ARO.

Payment terms are company check, cash transfer or PayPal

Technical Information:

Model LPPA 20010 ULTRA LINEAR

185-205 MHz, Pulsed RF power amplifier

For NMR applications

System features:

Protection functions:

- Auto/Manual reset

- Maximum reflected power

- Maximum average power

- Over temperature

Connectors, Controls:

- RF input: BNC (F)

- RF output: Type N (F)

- Noise blanking: BNC (F)

- Interface: 25 pin D(F), EMI filtered

- AC power on/off

Front panel Indicators:

- AC on

- RF on

- F/R power

- Energy (P*T)

- Fault

- Power supply

- Thermal overload

- Blanking

- CW mode

Interface outputs:

- Forward/Reflected RF power

- VSWR fault

- Energy fault

- Power supply fault

- Thermal fault

Technical Performance:

Operating frequency - 185-205 MHz

Pulse power (min.) into 50 ohms - 1000 W

Linearity (± 0.6 dB, typ.) - 1-900 W

CW output power (min.) - 150 W at 50 % duty cycle

Harmonic content - -30 dBc to -35 dBc

Spurious content - - 60 dBc (min)

Gain (min.) - 60 - 64 dB (drive level -4 dBm, typ.)

Gain flatness (typ.) - ± 2.5 dB

Input/Output impedance - 50 ohms

Input VSWR (typ.) - < 1.5:1

Pulse width (max.) - 20 ms

Duty cycle (max.) - 10%

Amplitude rise/fall time - 300/60 ns, typ.

Amplitude droop - 7% to 10 ms, typ.

Phase change/output power - 10° to rated linear power, typ.

Output noise (blanked/unblanked) - -160/-120 dBm/Hz

Blanking delay - < 1.5 µs on/off, TTL signal

Environmental:

Cooling - Internal forced air, front to back flow

Operating temperature - +10 to 40°C

AC line voltage - 187 to 240 VAC, 50/60 Hz, SMPS, PF corrected to 0.97

AC power requirements - 5A (nom.) (10A breaker recommended)

Package - Rack mount

Size (HWD, inches) - 7.00 x 19 x 21.6 (17.78 x 48.26 x 55 cm)

Net weight - 86 lbs. (40.1 Kg)

Compliance - CE

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