1kHz-200MHz RF Frequency Counter Module

Add a frequency readout to a compatible RF test project. This compact module combines an LCD0802 display with signal and power connections for an embedded setup.

✅ Read the signal frequency locally - The 8 x 2 display provides a numerical reference.

✅ Choose a matching input connection - SMA and XH2.54 signal inputs serve the same measurement channel.

✅ Filter unstable readings - The S2 control toggles the invalid-frequency filter.

✅ Fit a small instrument enclosure - The board is approximately 59 x 33 x 20 mm.

Match Signal Level and Supply Before Connection

The specified range is 1 kHz-200 MHz with a 0.2-3 Vpp input and 50-ohm SMA interface. Supply the board with 5-9 V DC using the designated power connection.

This is a module rather than a complete protected bench instrument. Strong harmonics can affect readings; use a suitable test arrangement and signal conditioning. Related reference links are retained below.

Technical details

• 1 kHz-200 MHz range
• LCD0802 display
• SMA / XH2.54 signal input
• 0.2-3 Vpp specified input
• 50-ohm SMA interface
• 5-9 V DC supply
• Approximately 59 x 33 x 20 mm

Related reference 1 Related reference 2

Build a local frequency display into your matched RF project.