40M LP and SP Take Off Angles

The F1 layer exists only in summer, and during the Northern Hemisphere Winter, our F2 layer means that we get more distance covered by each hop. At ZS they have both F1 and F2 because its their Summer. ZS6CCY has a low take off, high gain antenna – 3 element yagi up high on 40M. This is why he always will be doing most…

Take Off Angle and HF Propagation

My 40M A – B tests between the DX Engineering DV-40-P phased vertical array and the Cushcraft D40 rotatable dipole have left me wondering. Why does the phased vertical array work better on the evening Short Path and the dipole on the morning Long Path to ZS. This “oldie but goodie” paper seems to describe at least some of what is going on: http://nvlpubs.nist.gov/nistpubs/jres/65D/jresv65Dn2p167_A1b.pdf…

The End of the EU LP Line

After an early morning DX “session” on 160M, I listen on 40M for EU and ZS on the Long Path. We are right at the end of EU being strong on that path, but fortunately, because ZS is in the Southern Hemisphere, we have a Long Path opening on 40M almost daily year round. In fact, I think we also have the evening Short…

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…

40M Long Path Test (#2) : Cushcraft D40 for the Win!

On the Long Path to Italy, the Cushcraft D40 is the clear winner, by one to two S points. This is about the same difference that the DV-40-P wins on the Short Path to ZS at my night time. I0QMN is booming in with a S9 +20 dB signal.

KY6R “Post DXCC” Station

I’m back to the Elecraft K-Line, plus the DX Engineering NCC-2 and phased Wellbrook ALA1530LNP Imperium loops for receive. My 20M yagi has been replaced by this Cushcraft D40 rotatable dipole. I will do extensive A – B testing against the DX Engineering DV-40-P phased vertical array, especially with ZS6CCY. The Inverted L that has a special home brewed UNUN / Balun base switching…

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…

Z60A on a Fading 40M Long Path

Its 1620z, and I am hearing Z60A on the 40M Long Path – but very weak. That’s because its too late – the band is closing, but this is actually the first time I have heard Z60A – I expected loud signals from them. What is interesting is how this path stays open almost all year long to ZS, but to EU its just…

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…

40M Phased Vertical Array ~ 40M Half Wave Dipole

The N6BT DXU-32 … I have had two occasions where I was able to test my fantastic 40M phased vertical array against other antennas. I say fantastic only because when you compare the height requirements and maintenance requirements, the phased array has tremendous bang for the buck. The DXE DV-40-P … First I compared it to the N6BT DXU-32, and the DXU-32 won by…