Passive transcoupler modules (duplexer/transmit-receive switch)

• Custom-made passive transcoupler module
• RF power 1 - 1000 W
• VSWR < 1.2
• Low-frequency range:
  -- 0.45 - 0.75 MHz
  -- 0.7 - 1.0 MHz
  -- 1.0 - 2.0 MHz
  -- 2.0 - 3.0 MHz
• Mid-frequency range:
  -- 3 - 5 MHz
  -- 5 - 9 MHz
  -- 9 - 14 MHz
  -- 14 - 30 MHz
  -- 30 - 50 MHz
  -- 50 - 80 MHz
  -- 80 - 150 MHz
  -- 150 - 250 MHz
  -- 250 - 350 MHz
  -- 350 - 450 MHz
  -- 450 - 550 MHz
• High-frequency range:
  -- 550 - 650 MHz
  -- 650 - 850 MHz

Our REDOR Box splits a single X-channel (e.g. of a Bruker H—X MAS probe) into a double-resonance circuit to enable X—Y Rotational Echo Double Resonance (REDOR) and similiar NMR experiments.

Options:

• Large REDOR Box: fields of 200 - 600 MHz
• Small REDOR Box: fields of 700 - 900 MHz

Specifications:

• Up to 1000 W RF pulse power (50 μs)
• VSWR < 1.2
• Frequency splitting 1 - 20 MHz, e.g. 13C/23Na, 13C/27Al
• Larger frequency splitting is subject to discussion
• Suitable for Bruker 4.0 and 3.2 mm H—X(—Y) MAS probes (X channel)
• Suitable for DNP experiments
• Suitability for other MAS rotor/probe sizes is subject to discussion
• The box is not suited for the 1H/19F channel
• The H channel can be used with the REDOR Box attached to X
• The Y channel can still be used with the REDOR Box attached to X
• Simple installation/mounting directly at the probe
• N-type connectors
• Efficiency of up to 80% compared to single resonance probe