Instruction Manual

OCTOPACK
LECTROSONICS, INC.
12
Antenna/Block Reference Chart
The A8U whip UHF whip antenna is factory cut to a
specific frequency block as shown in the table below.
A colored cap and label are used on blocks 21 through
29, and a black cap and label are used on the other
blocks to denote the frequency range of each model.
The A8UKIT is is also available to construct an anten-
na as needed. The chart is used to cut the length cor-
rectly and for identifying the frequency of an antenna
that is not marked.
BLOCK FREQUENCY CAP ANTENNA
RANGE COLOR WHIP LENGTH
470 470.100-495.600 Blackw/Label 5.48”
19 486.400-511.900 Blackw/Label 5.20”
20 512.000-537.500 Blackw/Label 4.95”
21 537.600 - 563.100 Brown 4.74”
22 563.200 - 588.700 Red 4.48”
23 588.800 - 614.300 Orange 4.24”
24 614.400 - 639.900 Yellow 4.01”
25 640.000 - 665.500 Green 3.81”
26 665.600 - 691.100 Blue 3.62”
27 691.200-716.700 Violet(Pink) 3.46”
28 716.800 - 742.300 Grey 3.31”
29 742.400 - 767.900 White 3.18”
30 768.000-793.500 Blackw/Label 3.08”
31 793.600-819.100 Blackw/Label 2.99”
32 819.200-844.700 Blackw/Label 2.92”
33 844.800-861.900 Blackw/Label 2.87”
779 779.125-809.750 Blackw/Label 3.00”
944 944.100-951.900 Blackw/Label 2.70”
Note: Not all Lectrosonics products are built on all of the blocks covered in
this chart.
33
32
31
21
22 23 24 25 26 27 28 29
30
Frequency Blocks
Colored cap
20
Note: This line should be 6.00" long.
Whip Length
944
779
470
19
The lengths shown are specifically for the A8U whip
antenna with a BNC connector, as determined by mea-
surements with a network analyzer. The optimal length
of the element in other designs will likely be different
than those shown in this table, but since the bandwidth
is typically wider than the specified block, the exact
length is not critical for useful performance.