Note on Impulse Transmitter:
We use a Narod-type impulse transmitter from Icefield Instruments. Two option are available: Standard or Slow. The Slow transmitter outputs more power within frequencies up to 5 MHz, and is typically used for deep temperate ice (700m +) while the Standard version operates up to around 70MHz (the transmitter has more bandwidth than this, but not much power is available above 100 MHz). In general terms, the EPU can operate within its specifications with any impulse transmitter. For instance it has been used with the Mark I transmitters by the Earth Science Institute in Reykjavik, Iceland and all research grade Narod transmitters.
We use a Narod-type impulse transmitter from Icefield Instruments. Two option are available: Standard or Slow. The Slow transmitter outputs more power within frequencies up to 5 MHz, and is typically used for deep temperate ice (700m +) while the Standard version operates up to around 70MHz (the transmitter has more bandwidth than this, but not much power is available above 100 MHz). In general terms, the EPU can operate within its specifications with any impulse transmitter. For instance it has been used with the Mark I transmitters by the Earth Science Institute in Reykjavik, Iceland and all research grade Narod transmitters.