Active antennas — MFJ
MFJ-1020C active SWL antenna
Tunable indoor active antenna 0.3–40 MHz with telescopic whip, ±10 dB gain, 5-band preselector
The MFJ-1020C is a tunable active indoor antenna covering 0.3 to 40 MHz: VLF, medium-wave broadcast, all of shortwave and all the amateur bands in this range.
Product description
It offers gain, selectivity and better reception both at home and portable. It is used with the supplied telescopic whip or with an external wire antenna connected to the SO-239 input (in this case the whip must be removed).
The gain control adjusts from −10 to +10 dB; the band selector has OFF and 5 bands from 0.3 to 40 MHz, and the Tune control peaks the signal on each band. There is also a bypass switch.
Key features
0.3–40 MHz
From VLF to shortwave.
Tunable
5-band preselector.
±10 dB gain
Adjustable.
Technical specifications
| Frequency | 300 kHz – 40 MHz |
| Gain | −10 to +10 dB |
| Preselector bands | 5 + OFF |
| Controls | ON/OFF, gain, bypass, band, tune |
| Connectors | SO-239 input, SO-239 output, 3.5 mm jack power, ground terminal |
| Power supply | 9–12 V DC, 45 mA, or 9 V battery |
| Antenna | 20" telescopic whip |
Package contents
- Telescopic whip
HamRadioShop | Receiving antennas
