Brand:
DX Engineering
Manufacturer's Part Number:
DXE-MM-1
Part Type:
Baluns, UNUNs and Chokes
Product Line:
DX Engineering Dual Impedance Antenna Transformers
DXE Part Number:
DXE-MM-1
Frequency Range:
1.8-30 MHz
Ratio:
1:4/1:2
Termination Impedance (Ohms):
12.5/25
Termination Location:
Top
Termination Type:
UHF female, SO-239
Enclosure Type:
Outdoor formed box
Enclosure Material:
Aluminum
Core Type:
Patented Maxi-Core®
Power Handling (CW/SSB):
1 kW/0.5 kW
Enclosure Width:
4.250 in.
Enclosure Height:
2.750 in.
Enclosure Depth:
2.750 in.
Quantity:
Sold individually.
Notes:
US Pat. No. 7,573,349.
Antenna Type Compatibility:
Mobile vertical antenna, HF
Lowest Band of Operation:
160 meters
Highest Band of Operation:
10 meters
DX Engineering Dual Impedance Antenna Transformers are dual ratio UNUN (unbalanced to unbalanced) transformers. They're great for coupling your 50 ohm coax to an antenna with a feed point impedance of either 25 or 12.5 ohms, typically found at HF mobile antennas. DX Engineering Dual Impedance Antenna Transformers are ideal for antennas that have been enhanced with a Hot Rodz capacity hat. These units are housed in an aluminum enclosure and use silver plated PTFE SO-239 connectors.
Power handling capability depends on the match:
* Using the 25 ohm to 50 ohm port, with SWR below 2:1 on the 50 ohm side, -- 750 watts PEP
* Using the 12.5 ohm to 50 ohm port, with SWR below 2:1 on the 50 ohm side, -- 500 watts PEP
