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DX Engineering Dual Impedance Antenna Transformers DXE-MM-1

Transformer, Dual Impedance, Patented Maxi-Core, 1.8-30 MHz, 1:4/1:2 Ratio, UHF Female, SO-239, Top, Each

Estimated Ship Date: 2/9/2015 (if ordered today)

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Manufacturer's Part Number: DXE-MM-1
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


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