Features: 

A small WSPR message transmission hardware device based on the SI5351 chip.

This device incorporates a TCXO to eliminate frequency drift of the SI5351 and a built-in GPS module for use with an active GPS antenna. 

It features transmission time synchronization and automatic QTH positioning calculation, and employs a buffer based on the 74ACT244 chip.

After configuring the call sign, grid (GPS is used by default), and frequency through the serial port, it can be used without the need for external software or code.

Specifications:

 Part Name: SI5351 WSPR Transmitter

Material: ABS

Color: As shown

size: 50*20*63mm (excluding connector)

RF Connector: for SMA

Feeder: 50Ω coaxial cable

GPS Antenna Type: Active, External

Maximum Output Power: ~23dBm

Power Supply: USB-5V

Package Contents:

1 x Device

1 x GPS Antenna

1 x Type-C Cable

Note: 

It can be used immediately after configuring the call sign, grid (GPS is used by default) and frequency via serial port; no external software or code is required.

Payment must be completed within 5 days. If you have any problems about payment, please contact us via ebay message.

We only ship to confirmed ebay Order addresses. Please comfirm that your Order address is in line with your shipping address.

Please kindly note that the combined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. 

It takes about 7-15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection. If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance.

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