Antenna/Block Reference Chart - Lectronics UCR411A Instruction Manual

Antenna/Block Reference Chart

The A8U whip UHF whip antenna supplied with the receiver 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 chart is useful for fabricating an antenna from coaxial cable or other materials, or for identifying the frequency of
an antenna that is not marked. The lengths shown are specifically for the A8U whip antenna with a BNC connector, as
determined by measurements 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 in whip, dipole and coaxial designs.
BLOCK
470
19
20
21
22
23
606
24
25
26
27
28
29
30
31
32
33
Note: Not all Lectrosonics products are built on all of the blocks covered in
this chart.
Rio Rancho, NM
FREQUENCY
RANGE
470.100 - 495.600
486.400 - 511.900
512.000 - 537.500
537.600 - 563.100
563.200 - 588.700
588.800 - 614.300
606.000 - 631.500
614.400 - 639.900
640.000 - 665.500
665.600 - 691.100
691.200 - 716.700
716.800 - 742.300
742.400 - 767.900
768.000 - 793.500
793.600 - 819.100
819.200 - 844.700
844.800 - 861.900
UHF Digital Hybrid Wireless™ Receiver
CAP ANTENNA
COLOR WHIP LENGTH
Black w/ Label 5.47"
Black w/ Label 5.19"
Black w/ Label 4.95"
Brown 4.73"
Red 4.47"
Orange 4.23"
(Use Block 24) 4.00"
Yellow 4.00"
Green 3.80"
Blue 3.61"
Violet (Pink) 3.46"
Grey 3.31"
White 3.18"
Black w/ Label 3.08"
Black w/ Label 2.99"
Black w/ Label 2.92"
Black w/ Label 2.87"
19