Frequency Tables & Switch Settings

SM Frequency Adjustment

SM Front PanelThe SM Series offers state-of-the-art membrane switches and LCD to set up and control the transmitter. The operating frequency can be displayed in MHz or as a two-digit hexadecimal number. The hexadecimal number is equivalent to the rotary switch settings used on other Lectrosonics transmitters. With the SM, pressing the Up or Down Arrows increases or decreases the operating frequency in 100 kHz increments. The frequency range (block) of the unit is displayed as part of the power on process.

Adjusting the Frequency for Transmitters
with Rotary Frequency Select Switches

If you are experiencing interference from another signal on your frequency, you may want to change the operating frequency of your system. Frequency Switches

To gain access to the frequency adjustment switches, slide the access door (if equipped) open with a fingernail. The frequency range (block) of the unit is laser engraved on this switch cover or housing.

The left switch changes the operating frequency in large steps and the right switch changes it in fine steps. If you are experiencing interference, change the operating frequency in fine steps to find a clear channel. If it is not possible to find a clear channel using the fine switch, return it to its original position and change the left switch by one click then try the right switch again.

Note: Block 944 wireless microphones operate within the STL band and are only allowed for use in Part 74 of the FCC rules by licensed users for broadcast production. All other users of wireless microphones must operate in the range between 470-698MHz.

Frequency Tables

Important!!! Transmitter and receiver must be on the same frequency block and the transmitter and receiver must be set to the same frequency. If they are not, the system will not work.

(Click on block number to see table)

Block 470

Lectrosonics Block 470 frequency chart

Block 19

Lectrosonics Block 19 frequency block chart

Block 20

Lectrosonics Block 20 frequency block chart

Block 21

Lectrosonics Block 21 frequency block chart

Block 22

Lectrosonics Block 22 frequency block chart

Block 23

Lectrosonics Block 23 frequency block chart

Block 606

Lectrosonics Block 606 frequency block chart

Block 24

Lectrosonics Block 24 frequency block chart

Block 25

Lectrosonics Block 25 frequency block chart

Block 26

LectrosonicsBlock 26 frequency block chart

Block 27

Lectrosonics Block 27 frequency block chart

Block 28

Lectrosonics Block 28 frequency block chart

Block 29

Lectrosonics Block 29 frequency block chart

Block 30

Lectrosonics Block 30 frequency block chart

Block 31

Lectrosonics Block 31 frequency block chart

Block 32

Lectrosonics Block 32 frequency block chart

Block 33

Lectrosonics Block 33 frequency block chart

Block 944

Lectrosonics Block 944 frequency block chart