Instructions on how to construct a DIY digital scanner with inexpensive components:
Hardware
RTL-SDR $32.95@
https://www.amazon.com/gp/product/B0BMKZCKTF/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&th=1
SMA Antanna $9.99
https://www.amazon.com/Bingfu-136-174MHz-400-470MHz-Handheld-Magnetic/dp/B07WPWK5JK/ref=sr_1_19?keywords=sma+antenna&qid=1681671813&sprefix=sma+ante%2Caps%2C202&sr=8-19
Optional
SMS Antenna Splitter $7.49
https://www.amazon.com/Bingfu-Antenna-Splitter-Cellular-Amplifier/dp/B07STYNB6V/ref=pd_bxgy_img_sccl_2/138-4967639-0852624?pd_rd_w=bj2up&content-id=amzn1.sym.6ab4eb52-6252-4ca2-a1b9-ad120350253c&pf_rd_p=6ab4eb52-6252-4ca2-a1b9-ad120350253c&pf_rd_r=H45WCSB
USB Hub $25.99
https://www.amazon.com/gp/product/B07DFYQXY7/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1
Software
All found on the GFMARC Drive:
https://drive.google.com/drive/u/2/folders/1Buf9C9nC711zYejndKjG4edW8pf1XlMY
Windows:
Zadig
SDR-Trunk
VBCable
SDR#