Resetting The Gnss Receiver - Spectracom VelaSync 1232 User Manual

3. Locate the
4. Click Submit.
Calculating cable delay
The following formula can be used to calculate antenna cable delay:
D = ( L * C ) / V
Where:
D = Cable delay in nanoseconds
L = Cable length in feet
C = Constant derived from velocity of light: 1.016
V = Nominal velocity of propagation expressed as decimal, i.e. %66 = 0.66 Value is provided
by cable manufacturer.
When using Spectracom
approximately 1.2 nanoseconds of delay per every foot of cable. To calculate the Offset
value (cable delay), multiply the length of the entire cable run by "1.2" and then enter
this value into the Offset field.
E x a m p l e s
c a b l e d e l a y s :
100 feet of cable = 120 nanoseconds of cable delay
200 feet of cable = 240 nanoseconds of cable delay
300 feet of cable = 360 nanoseconds of cable delay
3.3.3.7 Resetting the GNSS Receiver
The
data will be erased from the volatile receiver memory. Only non-volatile memory is
CHAPTER 3 • VelaSync User's Manual Rev. 3
Offset field, and enter the desired value.
LMR-400
o f L M R - 4 0 0
Reset Receiver command causes the GNSS receiver to execute a cold start: All
or equivalent coaxial cable, this formula equates to
( o r e q u i v a l e n t )
3.3 Managing References
c o a x
135