Thanks for the info, Rich. It's amazing what one can start with a question to the folk on this Reflector! Hams are truly a helpful lot. With all the input that has been streaming in, I now have a lot to chew on.
Thanks loads!! -- 73 de Dick, ka1oz Elecraft K3/100 GAP Titan-DX Antenna On Sat, 2012-03-10 at 09:01 -0500, Rich - K1HTV wrote: > Dick, > Instead of the G5RV antenna, consider using a modified version of it, the > ZS6BKW, with your K3. The ZS6BKW antenna has better impedance characteristics > on > more bands than the G5RV. The K3's ATU matches the antenna on all of the bands > that it is designed to work on, 80, 40, 20, 17, 12 and 10 meters. It will > also > work on 6 Meters, but its lowest SWR is at 51 MHz, not very helpful. The > ZS6BKW > antenna has a slightly shorter flat top and slightly longer section of ladder > line than the G5RV. I've installed two ZS6BKW antennas with a 45 degree > difference in orientation and can switch between either of them. On 20 Meters, > the results is that the 4 major nulls of one antenna can be covered by > switching > to the 4 major lobes of the other antenna. > > So, how do they work? Well, in the past 3 years since retiring from VOA and > moving to a new VA QTH, I have worked 275 countries with 100 Watts. I recently > added a borrowed 3 element tribander for most of the last 15 countries worked. > Over 260 countries were worked using ZS6BKW antennas. With the K3 and its ATU > the ZS6BKW will work well on 80, 40, 20, 17, 12 and 10 Meters. On 160, 30 and > 15M, the ZS6BKW does not work well at all, even though the ATU can produce a > match for the K3 on some of those bands. > > A ZS6BKW construction note, for one of the antennas I used a common mode RF > choke made up of the 20 turns of the 50 Ohm RG58U coax feed line wound around > a > 6 inch diameter plastic COSTCO nut container. The second ZS6BKW antenna uses a > choke made of the same type coax but wound on a pair of toroids, as described > by > Jim, K9YC on his website. In each case, the choke is installed where the > ladder > lead meets the coax and NOT at the shack end of the coax. If you are > interested > in the ZS6BKW antenna, check out the articles below. > > http://www.ab4oj.com/dl/sprat_zs6bkw.pdf > > http://www.w5ddl.org/files/Zs6bkw_vs_G5rv_20100221b.pdf > > 73, > Rich - K1HTV > www.k1htv.us > > = = = > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > Sent: Friday, March 09, 2012 2:38 AM > To: Elecraft Reflector > Subject: [Elecraft] G5RV antenna experience on K3 > > Hi there-- > > Am considering putting up a g5rv antenna and was wondering what experiences K3 > users have with this antenna. Is an external tuner necessary? Is internal KAT3 > up to the task of taming this wire? > > Any hints will be helpful > -- > 73 de Dick, ka1oz > Elecraft K3/100 > GAP Titan-DX Antenna > > PS...Tried sending via my gmail account, but haven't seen it posted. I > appologize for any wasted bandwidth. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
