With an ATU (manual or auto impedance matching device) the ZS6BKW antenna is usable on 80, 40, 20, 17, 12, 10 and 6 metre bands, however the ZS6BKW is definitely unusable on 15m (21 MHz) and 30m (10 MHz) due to a very high VSWR on both bands. The IC-703 inbuilt ATU refused to play ball on 15 and 30m. Sep 26, 2017 · The ZS6BKW worked fine without the need for an ATU on 80M (a very slim bit), 40M, 20M, 17M, 12M and 10M but was untunable on the rest of 80M and all other bands with the TS590 built in ATU. I couldn't find any difference in performance between the homebrew doublet with the SGC at the base and the ZS6BKW.
Marc, N4UFP, and I get together to talk about, build and test the ZS6BKW antenna. This is a much MUCH better performer than the heavily marketed G5RV! If y...
Aug 06, 2015 · Consequently, the impedance at this point is low and on the order of 72 ohms. This makes it convenient to feed the antenna directly with low impedance 50 ohm coax cable. To minimize the chance of common mode currents on the coax that can cause the coax to become part of the antenna a balun is sometimes used. ratio balun. Bill claimed that the antenna is usable on most bands without a tuner (SWR <2:1) by adding a 1/4 λ wave transmission line impedance transformer cut for 15m and changing the balun ratio to 1:1. T h ei ncov f tsw d balu overcome if the feeder end and balun are brought into the shack. Using a tuner the antenna also works on 30, 17 &12m.
ZS6BKW - Free download as PDF File (.pdf), Text File (.txt) or read online for free. No balun is specified simply because neither the theory nor considerable experimentation justified the inclusion of one. Documents Similar To ZS6BKW. Carousel Previous Carousel Next.The ZS6BKW five band antenna – discussion of an NEC model Origins (Austin 1987) described a multiband HF antenna that is very popular with hams some thirty years later. zs6buj Antenna Tracker. Version 2.00 Beta released - use with caution for now. Please report problems. Originally Posted by zs6buj. Hope it's useful. Yeah, mechanical gears are definitely stronger, noisier and more costly.