Pix | Doc | Mod | Model | Band/QRG | Mode | Year | Quicknote |
 | | | NRD-2 | 0.1-30 MHz | AM / SSB / CW | 1968 | |
 | | | NRD-71 | 0.1-30 MHz | SSB / CW / DSB | 1978 | |
 | | | NRD-72 | 0.1-30 MHz | SSB / CW / DSB | 1979 | |
 | | | NRD-91 | 0.09-30 MHz | AM / SSB / CW | 1984 | |
 | | | NRD-92M | 0.09-30 MHz | AM / SSB / CW | 198x | |
 | | | NRD-301A | 0.09-30 MHz | AM / SSB / CW | 197x | |
 | | | NRD-345 | 0.1-30 MHz | AM / Synchro-AM / SSB / CW | 1997 | |
 | | | NRD-505 | 0.1-30 MHz | AM / SSB / CW / RTTY | 1977 | |
 | | | NRD-515 | 0.1-34 MHz | AM / SSB / CW | 1979 | |
 |  | | NRD-525 | 0.09-34 MHz | AM / FM / SSB / CW / RTTY / FAX | 1986 | 30-60 / 114-174 / 423-456 MHz option |
 |  | | NRD-535 | 0.05-30 MHz | AM / FM / SSB / CW / RTTY / FAX | 1991 | |
 |  | | NRD-535D | 0.05-30 MHz | AM / FM / SSB / CW / RTTY / FAX | 1991 | Some options factory installed |
 |  | | NRD-545 | 0.1-30 MHz | AM / FM / SSB / CW / RTTY (WFM) | 1998 | DSP. 30-2000 MHz option |
 | | | NRD-630 | 0.09-30 MHz | AM / SSB / CW / FSK | 2007 | 300 memories |