Deluxe RF Preselector II. The MFJ 1040C is a high gain RF amplifier.
| Frequency range | : | 1,8 - 54 MHz in 4 bands with fine tuning |
| Attenuator | : | 20 db |
| Antennas | : | 2, selectable |
| Receivers | : | 2, selectable |
| Relay | : | automatically bypasses the amplifier for use with transceivers up to 125 watts input |
| Power | : | 9 - 18 VDC or AC power supply such as MFJ 1312DX |
Dimensions and weight are including packaging