The MFJ-994BRT is an automatic tuner for coax or end-fed antennas. The tuner is weatherproof and suitable for outdoor use. The max. transmit power is 600W PEP, 600W CW and 500W continous carrier (RTTY, FM). The MFJ-994BRT tunes antennas over the entire shortwave range from 1.8 to 30MHz. The time to tune is max. 15 seconds, but usually as low as 5 seconds, becasue once found settings are stored in one of 10000 permanent memories.
The MFJ-994BRT works automatically, no manual tuning required. The tuning starts with a transmit power as low as 2 Watt, but 10 to 20 Watt are recommend for best results. The max. power while tuning should not exceed 20 Watt. Although the tuner is equipped with heavy duty 16A/1000V relays, they might be damaged when tuning at higher powers. The switched L network of the MFJ-994BRT tuner allows up to 192 dirrekt L and 192 different C values, resulting in an impedance matching range of 12 to 800 ?.
The MFJ-994BRT is housed in a weatherproof outdoor box. The power supply is done over the coax feed, for that purpose a Bias-T MFJ-4117 is included in shipment. The tuner has PL sockets for the transceiver and the antenna, alternatively a wire post can be used for end-fed wires. For parallel wire fed antennas an external ballun is required (not included).
Price: $399.95 USD