The 4 square antenna for 80m has been removed and I have installed an 8 element vertical array for 80m - the mast for the array is resonant on 160m and has 8 top loading wires 19 feet long - the antennas for 160 and 80 were designed by Tony G3LNP - my 80m version is currently under development and is the only array of its type covering 80m based on Tony's design - the phasing uses a single BC type capacitor and is extremely easy to set up - the radial system covers an area 200 feet by 200 feet and consists of 16 miles of radials - each element of the 8 array has its own radial system - as well as being bonded to the original 4 sq radial system - other antennas are 40m 4 square - a second 90 foot free standing Titanex vertical for 160m and a 10 element log periodic for HF bands. For local contacts I use a 264foot Doublet at 60 feet.
I have traded in new and used ham gear for some 50 years and trade under the banner of RCQ Communications Limited from my warehouse near Kings Lynn - both old and new equipment is catered for and I advertise in RadCom, Practical Wireless and RAOTA - I am also have an Agency with ML&S and can supply most equipment to the UK mainland - next day delivery.
I have been licenced for 50 years - thanks for looking me up on QRZ.
160m top loaded vertical - showing the 8 toploading wires each 19 feet long
This is the main 160m mast which also holds up the 8 elements spaces at 45 degrees for the 80m array.
Thats me winding up the second vertical for 160m - Titanex free standing 90 foot - tuned against 75 quarter wave radials
80m 8 element phasing box together with the 160/80 matching networks - now completed and all working!
The phasing bang on 107 degrees and 0.92 current ratio.
Tony G3LNP say's connect 2 idential lines from the front and rear elements - make one of the lines 107 degrees longer than the other - then set the scope amplitude to a ratio of 1 and 0.92 and simply tune the phasing capacitor for as close as you can get - the phase angle and current were calculated for my location and system using Eznec.
This is the home brew 8 element controler which also includes 2 Netiom boards and is connected to my Internet router
- I have full control of the whole station remotely from anywhere - I have operated remotely from my car using a Samsung Note mobile phone through the UK mobile phone network - using Logmein Ignition for the vision and Skype for the sound - from laptops I use IP Sound instead of Skype.
Left to right G4AMN G3RCQ G4PEL
80m DX gathering at G3RCQ's QTH September 2012 - does Dave's new antenna work?
Last modified: 2012-09-03 21:01:33, 3411 bytes cached
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