Happy New year , folks !
I saw a lot of postings asking for maximum ratings for Hy-Gain
BN-4000 current balun so, I'm enclosing here the answer I've got
from an authorised source at Hy-Gain.
73 de Morel, 4X1AD
>Subject: Hy-Gain TH11DX Power Ratings
>
>The TH11DX will handle 2000 watts continuous, 4000 watts PEP
>on any band 20,17,15,12, or 10 meters. The balun supplied with
>the TH11DX is the BN-4000 current-type balun, which is also
>rated at 2000 watts continuous. The balun is potted with Emerson
>& Cummings thermal potting compound which takes the heat
>away from the ferrite beads quickly. The driven elements are not
>loaded or trapped, as they are part of a Log-Periodic array. The
>reflectors are also single-band elements for 17 and 20 meters.
>The directors have some traps - two directors have one pair of 10
>meter traps each, and one director has a pair of 15 meter traps.
>
>The antenna was power-tested on 14 MHz with an ALPHA - 77
>(2 tube version) with no problems. The only band you may run
>into problems with is on 10 meters where the coax cable
>(RG-213/U) is only rated for 2000 watts continuous.
>
>Roger Cox
>Antenna Engineer
>Telex Communications, Inc. (Hy-Gain)
>http://ourworld.compuserve.com/homepages/hygain
>
>
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