User Manual

ManualsBrandsCodan Radio Communications ManualsElectronicsMT-4E 800 MHz Transmitter

MT-4E VHF & UHF Receiver & Transmitter Instruction Manual

IM08-MT-4E-TXRX Project 1106

General Information

CHANNEL AND BANK SELECTION

Four channel select lines CSEL0-3 are named on the Motherboard, and are brought into the receiver

and transmitter modules by the 48 pin rear connector, allowing selection of 16 different channels.

These signals are normally pulled low in the receiver and transmitter, but are typically set by jumpers

on the Motherboard to select channel 1 by default. In addition, a bank select input is provided to

switch between Bank A and B, each of which has 16 channels. The Bank select line normally oats

high (+5 V), selecting Bank A, but may be pulled low or high externally.

Channel and Bank Select Line Mapping

The table below shows the relationship between the states of the bank and channel select lines.

Note that the channel select lines follow a binary pattern, but that the binary “0” represents channel 1.

The Bank A/B select line normally oats high (+5 V), selecting Bank A, but may be pulled low or high

externally via the Bank A/B select line.

BANK A/B CSEL3 CSEL2 CSEL1 CSEL0

Bank

Selected

Channel

Selected

HI LO LO LO LO A 1

HI LO LO LO HI A 2

HI LO LO HI LO A 3

HI LO LO HI HI A 4

HI LO HI LO LO A 5

HI LO HI LO HI A 6

HI LO HI HI LO A 7

HI LO HI HI HI A 8

HI HI LO LO LO A 9

HI HI LO LO HI A 10

HI HI LO HI LO A 11

HI HI LO HI HI A 12

HI HI HI LO LO A 13

HI HI HI LO HI A 14

HI HI HI HI LO A 15

HI HI HI HI HI A 16

LO LO LO LO LO B 1

LO LO LO LO HI B 2

LO LO LO HI LO B 3

LO LO LO HI HI B 4

LO LO HI LO LO B 5

LO LO HI LO HI B 6

LO LO HI HI LO B 7

LO LO HI HI HI B 8

LO HI LO LO LO B 9

LO HI LO LO HI B 10

LO HI LO HI LO B 11

LO HI LO HI HI B 12

LO HI HI LO LO B 13

LO HI HI LO HI B 14

LO HI HI HI LO B 15

LO HI HI HI HI B 16