The Sure Fire Cycle 25 Prediction!

I have read several predictions for Cycle 25: It will be weaker than Cycle 24 It will be the same as Cycle 24 It will be similar to Cycle 23 I remember how many predictions there were at this time before Cycle 24. There were so many – it was hard to take any seriously – but each of us believed what we wanted…

Ham Radio . . . For The Fun of It

I enjoy my ham radio “shack”. Its really is a shack I built in the garage and is quite cozy. Like this fellow above in the Gil, W1CJD (SK) cartoon – it has a heater and cooling. A big part of the hobby is station “configuration” – and its fun to try new gear and swap pieces in and out. In the last year…

Its 40M Antenna Test Time!

With the cancellation of 3Y0Z, I went out back and took down my two temporary antennas that I had up for Bouvet – the 2 element 20M yagi and the 40M doublet – which is a 17M EDZ. This morning I swapped the MFJ-1886 with the NEW Wellbrook ALA1530LNP. Tomorrow I will also re-arrange my station a bit. I will be using the Elecraft…

Cushcraft D40 Plus 30M

After 3Y0Z my 2 element 20M yagi will be replaced by a Cushcraft D40 up 60′ and with a 30M wire added as a “fan dipole”. EZNec says keeping the wire spaced apart using the insulators I will be receiving today is fine. My model has the full sized dipole – so the coils might present some issues at the feed, but I actually…

An Easy Cushcraft D40 Mod Adding 30M

The Cushcraft D40 rotatable dipole is a great antenna – and its the same element they use on their 40M yagi. Because it uses coils and cap hats  instead of traps, it fairly efficient for a shortened antenna. One way to really make this antenna sing is to add 30M. It can be done very easily by simply adding a wire below using standoff…

Calculating the 80M LC Circuit

I was able to find an online calculator that will give me the circuit components for an 80M LC tank circuit: http://www.ham-radio.com/lc.html I happen to know that my Palstar roller inductor goes up to at least 20 uh, and while my giant Palstar variable capacitor goes up to 450 pf at 4.5 kv, I’d like to try to use a smaller E.F Johnson variable…

After 3Y0Z: 20M Yagi Becomes a 2 Element 30M Yagi (?)

By just adding coils in each of these elements and extending the boom to 12′, I can have an awesome 30M yagi. I have always really liked 30M – because it offers a “respite” from contests – which I m not at all interested in (unless I can get some 160M counters). But during the deepest part of winter, 30M does act a little…

LZ307MU on 30M at 3:30 PST (2233z)

I was very surprised to hear Bulgaria on 30M at 2200z, and then after a while I decided, what the heck – why not call him. Sure enough – he had a real hard time hearing me, but I used the DX Engineering DV-40-P – my 40M vertical array on 30M – because its SWR is just fine. I proved today that this antenna…

High Pass T Circuit

High Pass “T” Coupler Circuit from http://www.w0qe.com/Papers/Antenna_Tuners.pdf Trying to get 4 bands 160 – 30M (and maybe even 20M as a bonus) is tricky with a 2 component L circuit, so I will follow Larry, W0QE’s lead and start with a High Pass “T” circuit – which gives great range at the sacrifice of a little loss. I plan on trying to find one position…

Low Band Grounded Loop

The ARRL told me that they do not plan on continuing to update this book with new revisions. If you don’t already have it – you really need to order yours now – because it is already a classic.  More than ever, the combination of Low Band Antenna Experimenting and Maker projects is the cats meow in Ham Radio. I don’t even care so…