New 800ft Bev install for FT5Z Jan 2014, a closer look by the car shows the 1000ft East & West Bev's "passing by".
Member of RSGB ( 30 yrs), ARRL, CDXC, GMDX, ARRL A1- Operator Club, UKSMG.
DXCC #1 Honor Roll 340/340 (349)
I promote the use of CW
10 Band DXCC • 10 Band WAZ (35 on 6m no EME)
DXCC Challenge 3027(current not inc deleted)
160m = 255 DXCC + WAS & WAZ 40/40 (QRV since Sept 2007)
80m =300 DXCC (QRV since Sept 2008)
40m = 324 DXCC (QRV 20 yrs)
30m = 332 DXCC (QRV 20 yrs)
20m = 329 DXCC (QRV 20 yrs)
17m = 336 DXCC (QRV 20 yrs)
15m = 335 DXCC (QRV 20 yrs)
12m = 315 DXCC (QRV 22 yrs)
10m = 319 DXCC (QRV 24 yrs)
6m = 228 DXCC (no EME) (QRV 26 yrs)
4m = 42 DXCC (QRV on/off since 1999)
4m "bush" beam at 15ft - 43 countries wkd. Now QRT until May 2014
6m 7 ele antenna homebrew design - with SteppIR Dipole 10-20m
30m 1/4 vertical - 64 1/2 radials
40m – Quad loop @ 60ft,fed in vertical section with 1/4 wave 75ohm stub
(its around 20m behind the vertical)
80m – 66ft wire Vertical up fibreglass pole - 64 ¼ wavelength radials
DXCC #1 Honor Roll 340/340 (349)
Honoured to be the recipient of the prestigious RSGB Royal Order of Transatlantic Brass Pounders trophy for 2010. It is awarded for “outstanding and consistent DX work. “
The trophy was first awarded in 1924 and original Members of the Order were from those who operated transatlantic tests in 1921 to 1924.
Harold Rose Trophy 1995
To the person making an outstanding contribution to 50MHz
Winter views of Beverages
How best to run a section of Beverage wire under a path?
(1) buy some tennis balls & 2.5" drain pipe
(2) suspend Beverage wire through centre of balls
(3) fit through pipe
Thanks to KV4FZ for the idea and W3LPL for the technical explaination below as why you would do this. "A buried wire is a transmission line. When a transmission line is very short compared to a quarter wavelength, its usually considered to have practically no transmission line properties of its own except for a small amount of resistance.
Three primary factors are at play when using a very short transmission line (a buried insulated wire or coaxial cable) to connect two sections of a Beverage antenna:
Dielectric loss - a directly buried insulated wire will have more dielectric loss than a coaxial cable or a wire enclosed in a plastic conduit. A very short directly buried insulated wire might have insignificant dielectric loss (it wouldn't be difficult to measure this).
Mismatch loss - a very short transmission line (a buried wire in a conduit or a coaxial cable) has negligible mismatch loss. When a transmission line is very short (compared to a quarter wavelength), its characteristic impedance has little consequence to the circuit in which it is operating.
Velocity factor - minimizing the length of a coaxial cable, using high velocity factor coaxial cable (such as cable TV hardline), or using a very short buriedwire in a conduit will minimize the phase delay between the two interconnected segments of a Beverage antenna.
Using tennis balls to center the wire in the plastic conduit as recommended by KV4FZ will further reduce the phase delay of a buried wire."
Here are some pictures.
I use both wires of WD1A, so the cows have to eat through lots of strands before I lose a Beverage. I often find them hanging on by one or two strands! The picture below shows the tennis ball support for the wire. There is a ball every 3 feet. There are two pipes as there are two Beverages (completely separate installs). The yellow pipe in for the Coax.
Below shows before and after.
and the final results of 2 X 700ft Bev with 16ft under ground. The over the top route was ruled out due to high horse box access requirements.
These are not reversible Beverages. I find no issues running 2 within 1ft of each other using completely separate feeds, earth rods (inc separate radials x 4) and matching boxes.
After 5 years experimenting with Reversible Beverages using WD1A along with both commercial and homemade reflection transformers I have come to the conclusion there is no “free lunch”.
I have now replaced all “2-way” with dedicated one ways. Each Bev. has its own earth system and feed, the ends are staggered by around 30ft, the 2 wires however are close together, with just a foot separation in some places and up to 3 feet in others. F/B over 25dB+ (lucky to get 10dB on reversible) and both directions perform equally well. The big drawback of course is the work to lay coax. For that we used a number of surplus 600m drums of flooded compound low loss coax, which works out around 1dB loss per 100m on 160m.
There is now 1500m of coax running 6 Beverages, covering 360 deg.
These Rolls of cable below were a good find, smaller drum 300m, larger drum 600m. Purchased 6 in total.
Flooded Commscope, small drum 1dB loss per 100m at 160m, larger drum 0.8dB
The picture below shows the new ones installed weekend of July 13/14th. Both are a little shorter than the E/W 1000ft’ers (scroll down to see them). Previously with the reversible direction 650ft I never heard anything on them I couldn’t copy on phased EWE’s (40m separation). Now I can copy stations at S3-4 that are not readable on the EWE’s.
There are now 6 Bev’s installed (the 2 shown above are 950ft) covering N, S, E, W, NW & SE.
The shack is kept tidy by all Beverages & Pre-amp terminating at a remote 8 way switching network in the garage (picture below) this is controlled by a PC USB switch. Beverage switching is a "mouse click" on the screen.
LF Receiver antenna’s as well as the Bev's include
Mass production of 9:1 Beverage feed transformers for 6 Bev system.
It took 2-3 winters to install the radial mat, dont try this in summer when the ground is bone dry.
After 25 years of QSLing every 1st contact via the Buro, I have decided that from 01/01/11 I will wait for QSLs to arrive via the Buro, before replying the same way.
My preferred QSL route is via Log Book Of The World (LOTW) and all QSOs are uploaded there every week or two. I am happy to QSL direct. $2(no IRCs).
Here is a picture of my 4 sided QSL.
I have operated in recent years as JY8JH, C56/G0JHC, 3A/G0JHC, VU2DPG, XE1/G0JHC and usually air my US call W2JHC once a year.
I currently juggle my operating times around my wonderful family and friends & number of other hobbies/interests, including Football, Golf, swimming, walking my dogs and of course going to work!
I currently juggle my operating times around my wonderful family
73 Neil G0JHC
Last modified: 2013-12-09 18:04:39, 26412 bytes cached
This user has no active logs