* trm.rxg - Methanol band receiver parameter definition * * first line: LO values and ranges, format: * type frequencies * if type is range, the two values: lower and upper frequencies * if type is fixed, then one or two fixed value * frequencies in MHz * range 5000.0 5910.0 * or range 5000.0 5600.0 * 2nd line: creation date * format: yyyy ddd or yyyy mm dd (0 is valid for all for intial set-up) 2010 06 09 * * 3rd line: FWHM beamwidthm format: * model value * * if type is frequncy, then fwhm=value*1.22*c/(freq*diameter) * value is 1.0 if omitted * if type is constant, then fwhm=value (degrees) * frequency 1.0 * * 4th line polarizations available * * one of both of lcp and rcp * lcp rcp * * 5th line: DPFU (degrees/Jansky) for polarizations in previous line in order * KB comment: is equal to Ae/2760, where Ae is the effective aperture [m^2] 0.1400 0.1400 * * 6th line: gain curve (only one) for ALL polarizations in 4th line * TYPE FORM COEFFICENTS ... [opacity_corrected] * * FORM = POLY only for now * TYPE - ELEV and ALTAZ only for now * KB comment: ALTAZ means a function of the (zenith angle/distance in degrees) * COEFFICENTS - variable number of number values * opacity_corrected - optional final field, if present it indicates that * the curve is opacity corrected * * maximum coefficents 10 * *ALTAZ POLY 1.0 -1.0825e-4 -8.377e-7 -5.491e-8 * The above, for polynomial in the zenith distance, is equivalent to: ELEV POLY 0.943443 1.59335E-3 -1.56634E-5 5.491E-8 * * 7th and following lines: tcal versus frequency * Format: POL FREQ TCAL * where: * POL polarization rcp or lcp * FREQ frequency (MHz) * TCAL degrees K * * ends with a line containing end_tcal_table * * MAXIMUM ENTRIES 400. group by polarization * then sorted by increasing freq lcp 6000 6.65 lcp 6050 5.415 lcp 6070 5.415 lcp 6085 5.7 lcp 6100 5.7 lcp 6124 5.795 lcp 6150 6.46 lcp 6230 7.125 lcp 6300 7.4 lcp 6599.5 7.3 lcp 6602.5 7.2 lcp 6604.5 7.15 lcp 6615.5 7.1 lcp 6619.5 7.2 lcp 6620.5 7.3 lcp 6631.5 7.3 lcp 6635.5 7.3 lcp 6636.5 7.2 lcp 6647.5 7.1 lcp 6650 7.1 lcp 6652.5 7.2 lcp 6663.5 7.3 lcp 6666 7.25 lcp 6668.5 7.2 lcp 6675 7 lcp 6680.5 6.9 lcp 6685 6.7 lcp 6690 6.5 lcp 6695 6.9 lcp 6700 8.8 lcp 6705 10.7 lcp 6710 11.4 lcp 6716 11.1 lcp 6720 10.5 lcp 6725 9.8 lcp 6730 9.5 rcp 6000 4.56 rcp 6020 4.18 rcp 6036 3.895 rcp 6052 3.99 rcp 6068 4.5125 rcp 6080 4.845 rcp 6100 5.32 rcp 6116 5.89 rcp 6132 5.795 rcp 6150 5.7 rcp 6215 6.175 rcp 6250 4.94 rcp 6270 4.75 rcp 6285 4.94 rcp 6300 5.7 rcp 6590 5.6 rcp 6600 5.55 rcp 6605 5.55 rcp 6610 5.5 rcp 6615.5 5.45 rcp 6618 5.45 rcp 6620.5 5.4 rcp 6625 5.4 rcp 6628 5.45 rcp 6636 5.5 rcp 6648.5 5.5 rcp 6651.5 5.45 rcp 6657 5.35 rcp 6663.5 5.1 rcp 6665 5.1 rcp 6668.5 5.25 rcp 6675 5.1 rcp 6680.5 5.2 rcp 6683.5 5.35 rcp 6693 5 rcp 6696.5 4.9 rcp 6700 5 rcp 6705 5.4 rcp 6711.5 6 rcp 6712.5 6.1 rcp 6715.5 6.2 rcp 6716.5 6.2 rcp 6720 6.1 rcp 6725 5.8 end_tcal_table * * Trec: receiver temperature * 0.0 * * Spill over table * * 9th and following lines: Spillover versus frequency * Format: Elevation Tspill * where: * POL polarization rcp or lcp * FREQ frequency (MHz) * TCAL degrees K * * ends with a line containing end_spillover_table * * MAXIMUM ENTRIES 20 end_spillover_table