Frequency Selection Syntax

The specifications for SPW and channels can be combined to form a fully qualified frequency selection expression in the form SPWSPEC[:CHANSPEC] (square brackets indicate that :CHANSPEC is optional). A frequency selection expression is a comma-separated list of SPWSPEC[:CHANSPEC] specifications. Channel selections apply to all SPWs selected by the SPWSPEC on the left of ':'. E.g.

• freq=LBAND:1421$\sim$1500MHz^10KHz , 327MHz:300$\sim$400MHz, 0$\sim$4:0$\sim$10^2 , 5:20;30;40

  selects

  • all channels corresponding to channels in the range [1421.0, 1500.0] MHz for the SPW named "LBAND", and
  • all channels corresponding to the range [300.0, 400.0]MHz for the SPW with a reference frequency of 327.0 MHz, and
  • Channels in the range [0,10] in steps of 2 for all SPWs with IDs in the range [0,4], and
  • Channels 20, 30 and 40 for SPW 5

• freq=1421Mhz;1422Mhz;1423Mhz : 0;1;2;10 20;30 100^10 ,0 3:10 30

  selects

  • Channels 0, 1, 2 for SPWs with reference frequency of 1421.0, 1422.0 and 1423.0 MHz.
  • Channels 10 to 20 in step of 1 channel for SPWs with reference frequency of 1421.0, 1422.0 and 1423.0 MHz.
  • Channels 30 to 100 in steps of 10 channel for SPWs with reference frequency of 1421.0, 1422.0 and 1423.0 MHz.
  • Channels 10 to 30 in step of 1 channel for SPW IDs 0 to 3 in step of 1.