The top is held on by three screws on the left panel and three on the right panel.
The GMT shown: 21:49:14 is correct.
SVs 25, 26, 30, 23, 13 & 16 are carrier locked but not phase locked.
|Data Port 12mm ID Fischer
Some Z12R receivers have DB-9 connectors and some have Fischer Push-Pull connectors.
These are NOT 7 pin Fischer connectors like on the small box Z12.
|12 VDC Input 9 mm ID
Fischer 3 pin Connector
ANTENNA ID DESCRIPTION DATA SOURCE (# OF TESTS) YR/MO/DY
[north] [ east] [ up ] | L1 Offset (mm)
          | L1 Phase at
       [ 5] [ 0] | Elevation (mm)
[north] [ east] [ up ] | L2 Offset (mm)
          | L2 Phase at
       [ 5] [ 0] | Elevation (mm)
AERAT2775_42+CR Marine III +CR adaptor NGS ( 4) 05/05/31
-0.1 -2.6 65.7
0.0 1.2 2.0 2.6 3.0 3.2 3.2 3.1 3.0 2.8
2.7 2.5 2.5 2.4 2.4 2.5 2.6 0.0 0.0
-0.1 -0.4 93.6
0.0 -0.3 -0.4 -0.5 -0.4 -0.4 -0.3 -0.3 -0.3 -0.4
-0.4 -0.5 -0.6 -0.6 -0.6 -0.5 -0.2 0.0 0.0\
||S 103 A040+|
||U1 504-A||S 104 A056+|
||U1 504-A||S 104 A086+||E21 504-A086-J (solder)
E21 504-A086-K (crimp)
|U31 504-A03 (blu)
U31 504-A04 (vio)
U31 504-A09 (trq)
|U32 504-A03 (blu)
U32 504-A04 (vio)
U32 504-A09 (trq)
Enter the co-ordinates into the text boxes to try out the calculations. A variety of formats are accepted, principally:
And you can see it on a map (aren’t those Google guys wonderful!)
This GPS receiver includes an input for an external frequency reference, unlike the Z12 above. This might better lend it to precision GPS work.
ZR Fig 1 ZR Fig 2
ZR Fig 3
ZR Fig 4 Inside
Compact Flash drive: SanDisk 90 MB
Battery: TL-5/86 3.6V (unknown condition)
Remove front panel (+) screws and hinge down the panel.
NOTE: Be very gentle pulling off the connectors after noting which goes where (mine were marked I, II,X and O, but the X socket came off the PCB and needs to be soldered back down.
X: circle light
II: Satlitte light
I: Drive light
Remove the three hex head screws using a 3/32" ball end hex wrench.
Remove the back panel (+) screws and slide the PCB and rear panel assembly out the back.
This GPS receiver has the look and feel of the rack mount Z12, but much smaller. If you compare this receiver to the one at the top of the page, it's the same size as the main part and has an identical front panel. But the rear panel uses different connectors than the above receiver and different from the field version Z12 shown in the Z12.pdf manual.
8 Feb 2017 - added
Fig 1 Carry Bag Fig 2 Front panel with Z12 look and feel
Fig 3 Field connectors different than rack unit.
Power In dust cap: Amphenol 97-60-10
Power Cable connector: TBD
Power Voltage: TBD
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