TZ4AM: I’m Starting to Like the 7610 More Than The K3

The IC-7610 Scope layout and options are very intuitive OK – now I am really starting to love this new rig. The Scope functions fit my operating better than the P3 did. The amount of information is laid out the way I think – and once you put the SD card in – you get these beautiful screen snaps. I love the “T” marker…

LA1MFA on Evening 40M SP

I’m surprised that I hear LA1MFA so well at this time of year, but I guess the vernal equinox conditions are still there. Over this month this path will go away most likely – but since we are getting close to the beginning of solar minimum, it will be interesting to see the affect on the low bands – especially 40M, but also 30…

ZS to W6 Pipeline

The year long ZS – W6 pipeline is still going strong. I worked Bill – ZS6CCY where he was S9 +10 and I was S7 with only 100 watts. I never get tired of this – and really enjoy my DX Engineering DV-40-P phased vertical array.

Mad Antenna Science Weekend!

Now that all the hardware (structures and wiring) is in, I can take some time to do some tests and experiments. Here is a list of things I will try with the two 60′ (18M) Spiderbeam Fiberglass based wire verticals: Tune the verticals for the DX Engineering phasing solution. Check to see if the radial field – as strange as it is works. Try…

UrbanBeam on West Coast 40M Short and Long Path

This is a very interesting test. When I had the Cushcraft D40 up about 45 feet, on the morning Long Path, it beat the DX Engineering DV-40-P consistently to VK/ZL, ZS and all parts in between. During the night time Short Path, the 40M Phased Array always won. Last night – with the UrbanBeam up only 34-ish feet to ZS6CCY, this was certainly the…

The KY6R QTH Mystery

I still wonder why my DX Engineering DV-40-P phased 40M vertical array performs so well to ZS every night on the Short Path. The verticals are oriented NE – SW end fire, and the NE end fire direction is what works best for ZS. That’s a bit odd since the direction should be due east. OK, this one is easy – the cardioid pattern…

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…

The Pedersen Ray and Chordal Ducting

The ARRL Extra Class License Book contains the best explanation of why my DX Engineering DV-40-P 40M phased vertical array out performs the low Cushcraft D40 rotatable dipole up only 40′ to ZS on the Short Path at night (the lower angle goes farther and its launched in the dark at my end). The “magic” that I experience during the morning greyline to ZS…

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…