Block Numbers And Freqeuncy Ranges - Lectrosonics UH400TM Instruction Manual

Block Numbers and Freqeuncy Ranges

The transmitter will tune to any of 256 different frequen-
cies within a factory assigned block.
0 1
F
E 2
D 3
C
4
B 5
A 6
9 7
8
Two 16- position switches adjust the operating
frequency in 100 kHz steps yielding the 256 in a
block (16 x 16 = 256).
To determine a frequency from a block number:
25.6 × Block Number = Lowest freq. (MHz) in the block
Example: 25.6 x 24 = 614.400
To determine a block number from a frequency:
Freq. (MHz) divided by 25.6 = Block number
(first two digits are the block number)
Example: 685.500 divided by 25.6 = 26.77734375
The first two digits left of the decimal are the block num-
ber. In this case, 685.500 MHz falls within block 26.
It is handy to remember these formulas, in case you do
not have a copy of the table.
Rio Rancho, NM
0 1
F
E 2
D 3
C
4
B 5
A 6
9 7
8
Frequency Agile Plug-On UHF Transmitter
Block Numbers and Frequency Ranges (MHz):
Block 470
Block 19
Block 20
Block 21
Block 22
Block 23 (lower)
Block 23 (upper)
Block 24
Block 25
Block 26
Block 27
Block 28
Block 29
Part of block 23 (TV channel 37) is not available since it
covers a 608 to 614 MHz band that is allocated for radio
astronomy.
470.100 - 495.600
486.400 - 511.900
512.000 - 537.500
537.600 - 563.100
563.200 - 588.700
588.8 00- 607.900
614.100 - 614.300
614.400 - 639.900
640.000 - 665.500
665.600 - 691.100
691.200 - 716.700
716.800 - 742.300
742.400 - 767.900
9