Lectrosonics UM250b User Manual download pdf (Page 13)

UHF Belt-Pack Transmitter

A6U UHF ANTENNA

after cutting to length.

Frequency Blocks

Colored sleeve

Black cap

This is a full size cutting template. Lay the actual antenna on top of this drawing and cut at the mark

for the desired frequency group.

Install cap on end of antenna

Kits are shipped from the factory with caps of the various colors plus a black cap. After

cutting the antenna to the desired block length, select the properly colored cap and cut off

the closed end to make the colored sleeve. Slide the colored sleeve onto the antenna as

shown above then slide the black cap onto the cut end of the antenna.

FREQUENCY ANT SLEEVE ANTENNA

BLOCK RANGE COLOR WHIP LENGTH

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 Orange/Black 3.08"

31 793.600 - 819.100 Orange/Brown 2.99”

32 819.200 - 844.700 Orange/Red 2.92”

33 844.800 - 865.000 Orange/Orange 2.87”

The sleeve color follows the standard resistor color code for the second numeral in the

group number.

*IMPORTANT

Whip Length

Measure the length of the whip that protrudes outside of the SMA connector.

Rio Rancho, NM – USA

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Lectrosonics UM250b User Manual Page 13