Hi.
The schematic for this exact receiver is eluding me. Can you help ? Thanks.

----> https://robu.in/product/rf-transmitter-receiver-module-315mhz-wireless-link-kit-for-arduino/

 

Hello,

It looks a bit like the TX/RX set on this page:
https://forum.arduino.cc/index.php?topic=431249.0

Bertus

 

Thanks.
Similar; there is no trough-hole inductor in mine.

 

Hello,

Then this page from the Dutchman Jos Verstraten is closer:
https://verstraten-elektronica.blogspot.com/p/433-mhz-communicatie.html

Here is the google translation:
https://translate.google.nl/translate?sl=auto&tl=en&u=https://verstraten-elektronica.blogspot.com/p/433-mhz-communicatie.html

The description is for the 433 MHz version, but the frequency depends only on a couple of tuned circuits.

Bertus