This is a KM4CFT EFHW UNUN kit that I purchased via eBay. The circuit board is actually done, and I built mine as a EFRW UNUN, so that I can use the same wire for multiple bands. The only difference between the two versions is that the EFHW UNUN builds the toroid as a 49:1 transformer and uses a 100pF capacitor in the circuit. The EFRW UNUN builds the toroid as a 9:1 transformer and the capacitor is not used. I still have to measure out some wire - two lengths - one 41 Foot length (one of the non-resonant lengths recommended for 40 - 10 Meters ) for the radiator and one 17 foot length for the counterpoise.
When finished, it will be only a foot longer than my PAR ENDFEDZ, but will give me all bands, 40 - 10 Meters. The PAR will load up on 15 Meters with the KX3's auto-tuner, but 17 and 12 Meters are pretty much no-go.
This will be my antenna for Flight of the Bumblebees on Sunday, 7/28. If the weather is decent, I'll probably go to Cotton Street Park here in town and will shoot a line up into one of the really tall trees there and will use this as a hanging vertical or sloper. If the weather is crappy, I'll set up the Jackite in the backyard and will use this as a sloper while operating at our patio table under the cover of the big umbrella.
If it performs decently well for me, then I am counting on it and my ZM-2 tuner to pair up with the QMX when it finally gets here for a truly small portable operating package. I also ordered a 3.5 mm to 2.1 mm power cable adapter so I can use my little blue lithium battery with the QMX. Hopefully the QMX will be here in another month or two and I can take it with me when Marianne and I head up to Alexandria Bay for our anniversary in October. There are two state parks relatively close to where we will be staying that can be activated for POTA. Last year Marianne actually told me she wouldn't mind going with me if and when I activate them, when I brought up the possibility.
I'm quickly becoming enamored with operating portable with the smallest station that I can carry. It's truly amazing what you can accomplish with 5 Watts, if you know what you're doing and don't get into that nasty ol' mindset of "That will never work!".
On a side note ...... last year when we headed up to Alexandria Bay, we left on a Saturday after Marianne got home from work. Because we started out late, we spent Saturday night in Binghamton, NY. Recently, I looked up the hotel that we stayed at on Google maps and discovered that we were actually only a few blocks away from the street on which the original W2LJ lived! How cool is that? This year we plan to make the trip in one day, with no stop over. It's about a 6 hour ride up to Alex Bay from South Plainfield.
72 de Larry W2LJ
QRP - When you care to send the very least!
PS; Just checked the QRP Labs "Assembled Kits Order Status" page, which was updated today. I am 293rd on the list. If they build approximately 200 per month, then I'm looking at an arrival time of maybe late September. That would still be in time for me to take it along to Alex Bay. Fingers crossed!
I got hooked on qrp when I built the TunaTin2 offered by the NJQRP club. My 3rd q (at 330 mW) was Italy. That dispeled any thought of "That will never work ".
ReplyDeleteIt WILL work. There are endless ways to package EFHW and EFRW antennas and electrically they're all the same. Only the packaging changes. Be very careful to add more physical security to the BNC connector; looks frail. Have a lot of fun with it! 72, N4REE
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