2 Mtr - 70 Cm Mastvoorversterker
The Dualband Mast-Preamplifier DBA-270 improves the receiving characteristics of amateur radio stations in the 2-m and 70-cm-Band. Due to the built-in Diplexer only one HF-socket for the combi-antenna and the coaxial cable has to be connected.
The maximum switching power with HF-VOX is 100 Watt. Like all SSB-Electronic preamplifiers, the DBA-270 offers the possibility of direct supply and remote supply. With a sequencer the maximum transmission power is 500W. The direct supply is made via a UHF socket, the remote supply is made in the usual way via the existing coaxial cable. A Bias-T like the type DCC-12 should be connected for this purpose.
The DBA-270 can be switched by the transceiver via the coaxial cable, if the transceiver can contrrol a mast preamplifier.