RDF (Radio Direction Finding)
| Pix | Model | Band/QRG | Mode | Quicknote |
|---|
 | Benmar Navigator 555A | 0.15-0.4 / 0.52-4.6 MHz | AM/CW |
|
| Hammarlund RDF-10 | 0.185-0.41 / 0.55-1.6 / 1.7-3.4 MHz | AM/CW |
|
| Heathkit DF-1 | 0.54-1.6 MHz | AM |
|
| Heathkit DF-2 | 0.2-0.4 / 0.54-1.6 MHz | AM |
|
| Hilberling Heide | 80 m & 2 m | FM/SSB/CW |
|
| Mizuho FRX-2001 | 144-146 MHz | AM/FM | Fox hunting RX |
| Newmar Nav-221 | 0.15-0.4 / 0.535-1.605 / 88-108 MHz | AM/SSB/CW/WFM |
|
| Pilot DF-662 | 175-400 KHz / 0.55-4 MHz | AM/SSB/CW |
|
| Ray Jefferson 630/RDF | 0.15-0.4 / 0.535-1.605 / 88-108 / 145-174 MHz | AM/FM/WFM |
|
| Ray Jefferson 640/RDF | 0.15-0.4 / 0.535-1.605 / 26.8-27.8 / 88-108 / 145-174 MHz | AM/FM/WFM |
|
| Ray Jefferson 670/RDF | 0.15-0.4 / 0.535-1.605 / 88-108 MHz | AM/WFM |
|
| Raytheon Ranger | ?-? MHz | AM/SSB/CW |
|
| Raytheon Ray-DF | 0.18-0.4 / 0.535-1.6 / 1.6-4 / 86-109 / 146-176 MHz | AM/SSB/CW/FM/WFM |
|
| Sailor 16T | 0.15-0.425 / 0.525-4 MHz | AM/SSB/CW |
|
| Sailor 46T | 0.15-0.425 / 0.525-4 MHz | AM/SSB/CW |
|
| Sperry RDF | 0.2-0.42 / 0.54-4.4 MHz | AM |
|
| Taiyo Newmar RDF | 0.1-0.4 / 0.55-5 MHz | AM/SSB/CW |
|
