APPLICATION NOTE
Armada Technologies LLC
3596 76
th
St. SE Caledonia, MI 49316 USA
616-803-1080
This sample trace shows a 2-wire
decoder at the end of a 100-foot
piece of ID1 control cable. There
is a splice at about 75 feet.
A decoder echo has a small
upward blip with a deep trailing
blip.
Cable Correction Factor Table (VoP or VP) for TDRs
For reference only
Armada Technologies LLC
Straight
Coiled
Buried
Conduit
Range
Nominal
CABLE TYPE
Impedance
Setting
85
Coax Cable - Trunk
75
83
Coax Cable - RG6/U Triple or Quad Shield
75
78 - 82
82
Coax Cable - RG6/U Dual Shield
75
63
72
66
Coax Cable - RG59/U
75
67
Cat 5 UTP
100
72
58
70
16 gauge Speaker Wire
25
66
63 - 75
66
12/2 with Gnd Romex
25
55 - 60
59
14/2 NM
25
58
24 AWG Loose Pair
100
62
58
4 Conductor Telephone Wire
100
70 -84
77
8 to 16 AWG THHN in Conduit
25
73
70
57
Decoder Cable - ID1
25
60
Decoder Cable - MAXI
25
