High Power 4/1 Dual Core Current BALUN for Windom wire antennas and KLM KT34 Yagis.
The average feedpoint impedance of a Windom antenna, installed not higer than 10m above ground, is closer to 200 Ohms than 300 Ohms.
This means that in most cases a 4/1 balun is more suitable than a 6/1 version.
Because the Windom antenna is fed off-center, common-mode currents on the feedline outer skirt are likely to occur, so a current balun is abolutely nesessary.
We supply real Guanella type DUAL CORE current baluns with the following characteristics:
- Frequency range: 1.5 to 30 MHz.
- Max Power:
- 2400 W PeP @ VSWR < 2,0/1 (ICAS)
- 1200 W PeP @ VSWR < 2,0/1 (CCS)
- For ICAS and CCS power definitions, refer to “TECH INFO” tab.
- Intrinsic VSWR: < 1.15 / 1 at the frequency range edges.
- Teflon insulated windings.
From August 1st 2018 on, all BALUNs are built into UL508A certified polycarbonate enclosures provided with flanges for convenient installation .
See also “General Conditions for Safe use of ON7FU Ferrite Applications products” under the tab “LEGAL INFO”.
Price: 143 Euro. (Incl. VAT)
- Option: N-connector instead of SO239 connector : + 7 Euro.