SPOL CALIBRATION HISTORY                                  
                      Without Noise Correction              
  Freq             Tx Pwr             Testpulse      NOISE PWR (CPLR)  Ant Gain    Sys Gain   Ant Gain   Ant Gain  
                 Cplg Factor               Cplg Factor     (dBM) @ 804 kHz     Solar     Solar    Source    Sphere  
DATE   HOR VER   HOR VER   HOR VER                          
                                             
1994 2809                               44.80 44.40       Seavey measured
9-Apr-96 2813             -115.70 -115.40                         FL1
27-Dec-96 2745             -116.00 -115.50                         East Lake
18-Apr-96 2809 56.40 56.40   -36.00 -35.60   -115.20 -115.40                         CASES. New Preselectors.
22-Oct-97 2809 56.30 56.40   -35.90 -35.70                               Diode power meters now used
17-Nov-97 2809                               46.00 45.60       horn at Mesa
12-Feb-98 2809             -115.20 -114.80                         Mitch determined  bandwidth = 804 khz 4/23/98
20-Feb-98 2809                   46.20 46.70   45.71 45.93              
12-Mar-98 2809                   46.60 46.70   46.11 45.93             Flux based on Penticton data @2800mhz or Palehua @2695 and 4995mhz.
19-Mar-98 2809                               45.00 44.80       ~ 1 foot of wet snow on ground.
26-Mar-98 2809                   45.80 45.90   45.31 45.13             1840Z & 2130Z. Jon says he has ~ 1/4 dB better peak than previous
22-Apr-98 2809                               45.70 44.30             measurements.
22-Apr-98 2809                   45.40 46.00   44.91 45.23             Best ever. Using Mitch's Range Averaging.
29-Apr-98 2809             -115.10 -114.80                         Jon measures from processor.
29-Apr-98 2809                   45.60 45.60   45.11 44.83             Solar power measures 0.2 dB more (both) with noise correction.
1-May-98 2809                   46.00 45.90   45.51 45.13             Solar power 0.2 dB more Hor, 0.1 dB more Ver with noise correction.
11-May-98 2809                         45.61 45.43   46.10 46.20       Eldorado Mountain
14-May-98 2809                   45.90 45.70   45.41 44.93             Loaner TR tube(unknown loss)  in Hor channel.
18-Jul-98 2809 56.70 57.32   -35.90 -35.60   -115.20 -114.50   46.03 45.05   45.51 45.30             1st cal in Florida for PRECIP98
19-Jul-98 2809                   46.12 46.14   45.60 45.39             2nd cal in Florida for PRECIP98
20-Jul-98 2809                   46.10 46.02   45.58 45.27             3rd cal in Florida for PRECIP98
11-Aug-98 2809                   46.12 46.14   45.60 45.39             4th cal in Florida for PRECIP98
25-Sept-98 2809                   46.05 46.12   45.53 45.37             5th cal in Florida for PRECIP98
12-Jan-99 2809 56.80 57.10   -35.90 -35.55   -115.20 -114.50   45.90 46.03   45.38 45.28             1st cal in Brazil.  Used Penticton flux values, Noise cal from Florida. 2040GMT
19-Jan-99 2809                   46.09 46.14   45.57 45.39             2nd cal in Brazil.  Done in morning at 1250GMT
27-Jan-99 2809                   45.93 46.05   45.41 45.30             3rd cal in Brazil.  Done in morning at 1330GMT
2-Feb-99 2809                   45.89 46.08   45.37 45.33             4th cal in Brazil.  Done in morning at 1240GMT
7-Sep-99 2786 57.00 57.30   -35.88 -35.32   -115.20 -115.00   46.11 46.18   44.88 45.22             1st cal in Italy.  Done at 0730GMT, Noise cal from Italy 9/7/99. Used 
                                               interpolation for flux value.
10-Sep-99 2786                   46.27 46.43   45.04 45.47             Cal done in morning at 0900GMT.  Az error+0.2, El error +0.7
10-Sep-99 2786                   46.23 46.33   45.00 45.37             Cal done in afternoonat 1400GMT.  Az error +0.1, El error -0.8
21-Sep-99 2786                   46.10 46.22   44.87 45.26             Cal done in morning at 1040GMT.  Az error+0.3, El error +0.5
21-Sep-99 2786                   45.86 45.96   44.63 45.00             Cal done in afternoonat 1430GMT.  Az error -0.2, El error -0.5
12-Oct-99 2786                   46.02 46.02   44.79 45.06             First cal done after feed replacement.  Taken at 1240GMT
14-Oct-99 2786                   46.19 46.19   44.96 45.23             Second cal with new feed.  Taken at 1243GMT
2-Nov-99 2786                   45.83 45.63   44.60 44.67             Taken at 0900GMT.  Some heavy cloud in area. AZ -0.2, El +0.9
7-Nov-99 2786                   45.88 44.58   44.65 43.62             Last cal in Italy, done at 11:30GMT.  Az error +0.1, El error -0.1
13-May-00 2809 56.80 57.15   -35.85 -35.55   -115.20 -115.00   45.67 45.19   44.82 44.44             1st cal for STEPS.  May have noise correction
24-May-00 2809                   46.03 45.66   45.18 44.91             2nd cal for STEPS.
27-May-00 2809                   45.34 45.04   44.49 44.29              
11-Jun-00 2809                   46.02 45.66   45.17 44.91              
16-Jun-00 2809                   45.83 45.46   44.98 44.71              
18-Nov-00 2809 56.80 57.15   -35.85 -35.55   -115.30 -115.20   46.09 45.78   45.02 44.69             1st cal for IMPROVE, new noise cal values from 15 Nov. 2000
6-Jan-01 2809                   45.92 45.62   44.85 44.53              
11-Jan-01 2809                   46.22 45.88   45.15 44.79              
15-Jan-01 2809                   45.93 45.67   44.86 44.58             Using noise cal from 15 Nov 2000
15-Jan-01 2809 56.80 57.15   -35.85 -35.55   -115.90 -115.70   45.54 45.30   44.87 44.59             Using noise cal from 15 Jan 2001
22-Jan-01 2809                   45.69 45.47   45.02 44.76              
31-Jan-01 2809                   45.67 45.40   45.00 44.69              
2-Feb-01 2809                   45.72 45.45   45.05 44.74             Last cal for IMPROVE done at 2200GMT, AZ 205.5, EL 24.0, 0 offset
8-Nov-01 2809 56.80 57.15   -36.10 -35.65   -115.30 -115.40   46.14 45.73   45.11 44.81             1st cal for IMPROVE2 plus coupler and noise calibrations with new W/G
3-Dec-01 2809 56.80 57.15   -36.10 -35.65   -115.80 -115.50   45.27 45.15   44.61 44.33             1st cal with CHILL rotary joint, new noise calibrations done 12/3/01
5-Dec-01 2809                   45.37 45.36   44.71 44.54             Hor. W/G loss = 0.66dB, Vert W/G loss = 0.43dB
7-Dec-01 2809                   45.35 45.34   44.69 44.52             Last cal for IMPROVE2 done at 1748GMT, AZ 148.9, EL 16.7, 0 offset
                                             
25-May-02 2809 56.8 57.15   -36.1 -35.65   -115.8 -115.5   45.44 45.59   44.78 44.77             IHOP cal done with rebuilt rotary joint, but old noise cal temperatures
31-May-02 2809                   45.23 45.39   44.57 44.57             Solar cal using old noise cal
13-Jun-02 2809             -115.8 -115.4                         Noise cal with rebuilt rotary joint
18-Jun-02 2809                   45.18 45.2   44.55 44.51             Solar cal using noise cal done on June 13th.
22-Jun-02 2809                   45.34 45.37   44.712 44.68              
12-Feb-04 2809 56.95 57.15   -35.85 -35.5   -115.8 -115.5   46.42 46.61   45.78 45.75             First cal for WISP04.  Used noise cal done 02/02/04.  New rotary joint mount.
8-Jul-04 2809 56.95 57.15   -35.95 -35.5         45.62 45.68   44.98 44.82             First cal for NAME.  Used noise cal from 02/02/04.
28-Jul-04 2809                   45.78 45.9   45.14 45.04             2nd cal for NAME
7-Aug-04 2809                   45.66 45.68   45.02 44.82             3rd cal for NAME
19-Aug-04 2809                   45.53 45.58   44.89 44.72             Final cal for NAME
`17-Nov-04 2809 56.6 57.9   -46.15 -45.85   -115.8 -115.5   45.78 45.93   45.14 45.07             1st RICO cal, new coupler values due to damaged V coupler
27-Nov-04 2809                   45.9 46.44   45.26 45.58             2nd RICO cal
26-Dec-04 2809             -115.7 -115.2   45.86 47   45.33 45.78             Using noise cal from 29 Dec 2004
29-Dec-04 2809                   45.64 46.76   45.11 45.54              
DATE   HOR VER   HOR VER   HOR VER                          
  Freq             Tx Pwr             Testpulse      NOISE PWR (CPLR)  Ant Gain    Sys Gain   Ant Gain   Ant Gain  
                 Cplg Factor               Cplg Factor     (dBM) @ 804 kHz     Solar     Solar    Source    Sphere