Mezzanine LP4 add-on card for the WSPR_TX_LP1 (Needs components, read text)

The Mezzanine LP4 add-on card is an expansion for the WSPR-TX_LP1 tranmitter giving it up to four low pass filters. (Sold separately, se product "SMD and T37 Low Pass filter")
 
Some quick features:
Sits on top of a WSPR-TX_LP1 transmitter as an add-on.
Expands the WSPR-TX_LP1 with four low pass filters.
Is a partial Kit.
Needs four low pass filters, product number 1021.
The user chooses what four Ham bands to build low pass filter for.
4-layer PCB for highest overtone suppression. 
A 20 page build instruction document help the user build and integrate it to the WSPR-TX_LP1 transmitter.
Low-pass filters sold separately, see product 1021.
 
 
For more information including Schema and build instructions - see the product page.  https://www.zachtek.com/1020
 
The product comes with the board built but the user need to solder in components for low pass filters.