from Measurements of Earth-station delay instabilities using a delay-calibration device measured at 70MHz
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=840746
Type
|
Group delay [ppm/K] |
Phase delay [ppm/K] |
| RG58U |
-80 |
68 |
| FSJ1-50 |
7 |
-7 |
| ISOCORE |
21 |
-14 |
other data (e.g. for RG223/U) can be found here : http://tmo.jpl.nasa.gov/progress_report/42-99/99E.PDF
or here : http://ivs.nict.go.jp/mirror/meetings/v2c_wm1/phase_stability.pdf
or here: http://tesla.unh.edu/courses/ece758/Handouts/cable-specs.pdf
Type of cable Temp coef (ppm/K)
RG-8A -85
RG-214 -60
RG-223 -40 to -100
Belden 9913 -21
Andrew FSJ4-50B -2 to +6
Andrew LDF2-50 -8 to +6
Andrew LDF4-50A +7 to +16
And for the LMR-240 which i would buy for future cable delay lines ~24ppm/K
http://www.haystack.mit.edu/tech/vlbi/mark5/mark5_memos/067.pdf
|