* u.rxg - UHF 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 600 1000
*
*
* 2nd line: creation date
* format:  yyyy ddd or yyyy mm dd (0 is valid for all for intial set-up)
*
2006 06 08
*
* 3rd line: FWHM beamwidthm format:
*   model value
*
* if type is frequncy, then fwhm=value*1.05*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
*
0.073 0.068 
*
* 6th line: gain curve (only one) for ALL polarizations in 4th line
* TYPE FORM COEFFICENTS ...
*
* FORM = POLY only for now
* TYPE - ELEV only for now
* COEFFICENTS - variable number of number values
*
* maximum coefficents 10
*
ELEV POLY 1.0
*
*
* 7th and following lines: tcal versus frequency
*     Format: POL FREQ TCAL
*     where:
*            POL    polarization rcp or lcp
*            FREQ   frequency (MHz)
*            TCAL   degrees K
*
*     MAXIMUM ENTRIES 100, group by polarization
*                          then sorted by increasing freq
*
*
lcp 600.0 35.9391
lcp 840.0 35.9391
lcp 850.0 35.9391
lcp 851.4 35.5132
lcp 855.4 38.2529
lcp 863.4 40.5994
lcp 867.4 36.4435
lcp 868.5 35.0187
lcp 884.5 43.7322
lcp 993.1 42.8673
lcp 997.1 46.4577
lcp 1000.0 40.2355
rcp 600.0 35.2454
rcp 840.0 35.2454
rcp 850.0 35.2454
rcp 851.4 38.6981
rcp 855.4 41.5874
rcp 863.4 40.3756
rcp 867.4 36.5191
rcp 868.5 36.7715
rcp 884.5 45.0138
rcp 993.1 45.6666
rcp 997.1 47.6333
rcp 1000.0 40.0371
end_tcal_table
*
* Trec - receiver temperature, degrees K
*
* if value is zero, no opacity corrections are used
*
 0.0
*
* Spillover table
*
* format:
* elevation temperature
* where:
*  elevation is angular degrees above horizon
*  temperature is Kelvin degrees of spillover noise
*
*spillover table ends with end_spillover_table record
*
end_spillover_table