RCT-315-ASBR Radiotronix, RCT-315-ASBR Datasheet - Page 9

Manufacturer Part Number

RCT-315-ASBR

Description

RF Modules & Development Tools 314.3-315.7MHZ Transmitter Mod

Manufacturer

Radiotronix

Datasheet

1.RCT-433-ASB-R.pdf (14 pages)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

RCT-433-ASBR DATASHEET

Design Hint (T-Pad): The RCT-433-ASBR transmitter can be sensitive to unbalanced or unmatched

loads and could fail to operate or operate intermittently in this condition. Try to match your antenna

load as close to 50 ohms as possible. Use a T-pad if necessary to give the transmitter a close 50 ohm

match before your antenna. A T-pad will also act as an attenuator. See figure 6 below, for a T-pad

match/attenuator circuit.

Figure 1: T-pad example

Resistor Values in this T-pad example are:

R1 – 10 Ohms

R3 – 150 Ohms