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DX Engineering Maxi-Core® Special Line Transformers are designed to be used in the construction of an ultra-low cost, long-length feedline system for 50 ohm HF antennas. They consist of a pair of special high power 450 ohm balanced to 50 ohm unbalanced line transformers, which may be used at each end of any length of 450 ohm ladder line. This allows for a cost-effective, low-loss, very long feedline to be created to connect a 50 ohm HF transmitter or transceiver to a distant matched 50 ohm HF antenna system. The loss of the 450 ohm ladder line is typically 1/10 of the loss of RG-213. Depending upon feedline length and frequency of operation, power transfer and signal reception can be improved by 2 to 5 dB using these Maxi-Core® special line transformers and DXE-LL450-5C or DXE-LL450-1K 450 ohm ladder line. That represents an improvement of one and a half to over three times in signal level performance, both transmitting and receiving.
DX Engineering high power Maxi-Core® Special Line Transformers are inherently the best available current chokes. They provide exceptional common mode current isolation between their 450 ohm balanced line terminals and their unbalanced 50 ohm coaxial cable connections over a wide frequency range. High common mode isolation from these choke baluns, along with theiecarefully balanced matching transformers, significantly reduces stray signal reception and feedline radiation when compared to other less sophisticated matching methods.
* 1.8 MHz through 30 MHz
* 5 kW continuous
* 10 kW intermittent
* Formed aluminum case
* Top-quality PTFE SO-239 connector
* Ceramic insulators with stainless steel connection hardware
Transformers, Maxi-Core®, Special Line, 9:1 Ratio, 1.8-30 MHz, 450 ohms, Top, Aluminum Enclosure, Pair
Part Number: DXE-BAL450H10-BP
Availability: In Stock
Estimated Ship Date: Tomorrow
Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.