The insertion loss of DUT81 on 1296 measured with SDR-IP and a HP6644A as the signal source.
(April 18 2013)
This combination which is 70 ohms on its female connector and 35 ohms on its male connector seems to put higher requirements on the connectors than other DUTs.

It was measured 4 times, connectors were carefully cleaned before the last measurement. It seems reasonable to use a weighted average of all measurements with (1/stddev)2 as a weight factor. 
File          IL      Stddev
dut81.gif   0.1950    0.00169  
dut81a.gif  0.1925    0.00120
dut81b.gif  0.1929    0.00158
dut81c.gif  0.1950    0.00082

Weighted average 0.1941

Guess for standard deviation 0.0006
Sorry, the dut81c.gif file is lost. 
Observed signal levels:

 none         DUT81
 11.4712     11.2752
 11.4692     11.2735
 11.4684     11.2744
 11.4685

Averages
 11.4693     11.2744

Standard deviations of individual measurements
 0.00130    0.00085

Insertion loss 0.1950 dB
Standard deviation on insertion loss 0.00082


Error limits (3 sigma) +/- 0.0024 dB


The above is the third repetition of this measurement.
The standard deviation remains high.







Observed signal levels:

 none         DUT81
 11.4719     11.2799
 11.4698     11.2762
 11.4692     11.2752
 11.4690

Averages
 11.4700     11.2771

Standard deviations of individual measurements
 0.00133    0.00247

Insertion loss 0.1929 dB
Standard deviation on insertion loss 0.00158


Error limits (3 sigma) +/- 0.0047 dB


The above is the third repetition of this measurement.
The standard deviation remains high.







Observed signal levels:

 none         DUT81
 11.4686     11.2759
 11.4666     11.2731
 11.4650     11.2731
 11.4660

Averages
 11.4666     11.2740

Standard deviations of individual measurements
 0.00158      0.00162

Insertion loss 0.1925 dB
Standard deviation on insertion loss 0.00120


Error limits (3 sigma) +/- 0.0036 dB


This measurement was repeated because the standard deviation in
the first measurement was a bit larger than normal.
The new measurement also has a bit high standard deviations.







Observed signal levels:

 none         DUT81
 11.4937     11.2997
 11.4944     11.2971
 11.4959     11.3027
 11.4953

Averages
 11.5005     11.2998

Standard deviations of individual measurements
 0.00097      0.0028

Insertion loss 0.1950 dB
Standard deviation on insertion loss 0.00169


Error limits (3 sigma) +/- 0.0051 dB