appendix rsp1a - rfrht/FT991A-PAT GitHub Wiki
Why not an RSP1A?
Some people are "Go Big or Die Trying".
Seth Rhodes ran the extra mile and thanks to an defective RTL-SDR, he scored bonus awesomeness points and managed to deploy an SDRPlay RSP1A inside the radio - and with that comes superior hardware, BPF, etc. - Tips hat! o/
A few pictures from his enterprise. Click on images to enlarge.
Lodging
RSP1A lodged inside a FT-991A; notice the careful copper shielding to avoid any RF from the board leaking to the radio. Ensure to protect the bottom side with Kapton to avoid shorts in the radio!!
Device Manager
Device manager, showing the RSP1A under the radio's internal USB hub, nested along the CAT and Audio port
RSP1A Settings
RSP1A Controls and settings
Panadapter
RSP1A Panadapter. Stunning 6.5 MHz wide reception. Jaw dropped.