[digitalradio] G3OBU's antenna with digital mode DX

2010-01-02 Thread obrienaj 
John,

I read with interest your web pages describing your vertical antenna.  Please 
keep us informed on how it does on digital mode DX.  I had to look twice at 
what I thought was a balun at first.  

Do you report your signals via PSKreporter?  

Andy K3UK



--- In digitalradio@yahoogroups.com, Music Maker jhaddle...@... wrote:

 Hi Folks,
 
 Re Mels Post so these tiddly little sunspots are not really helping us to 
 get across the pond.
 
 Its 1330 UTC Sat 2 Jan 10.Have been looking around the Bands from here in 
 Central UK, but cannot report accurately, as I have just erected a 'Homebrew' 
 Vertical Antenna, which is an unknown quantity, combined with the very 
 variable band conditions.
 
 Yesterday at this time, I worked W2IX New York on 14.211MHz, and 4z4DX in 
 Israel, plus a few Russian, Spanish and Italian Stations.
 
 Today, I am working EW, RAS, HZ, EA, IK, IS, SQ, OH on PSK31 on 14.035, but 
 can hear nothing over about 1,800 Km distance (1,000 Miles).
 
 Its a great pity that conditions are so variable, as I would really like to 
 know how my own unusually designed and make 36ft Vertical antenna is really 
 working.   I am comforted by the fact that I don't hear other stations 
 working any distance either.
 
 I have done an article, with pics - on the construction of my new Vertical, 
 (if anyone is interested, HI !)!   Its towards the bottom of the page - here 
 - http://www.john4music.tv/7.html
 
 Geez - I am sitting here typing this, with the phones on my head, and K1UA in 
 Cape Cod has just started booming in at 5 and 9+20 on 14.175 SSB !!!  Working 
 only Stateside stations.You just can never tell, can you?
 
 Kindest regards and best 73's de
 
 John G3OBU

Re: [digitalradio] G3OBU's antenna with digital mode DX

2010-01-02 Thread Dave Ackrill 
obrienaj wrote:
 John,
 
 I read with interest your web pages describing your vertical antenna.  Please 
 keep us informed on how it does on digital mode DX.  I had to look twice at 
 what I thought was a balun at first.  

I realise that we will probably be off topic, but a 9:1 UnUn is often 
used in random length wire antennas for frequencies under about 1MHz.

There are often various arguments for and against the 9:1 UnUn, some 
people preferring the 4:1 version and others saying the 4:1 doesn't work 
well for them.

A quick google for '9:1 UnUn' will give quite a number of sites with 
designs and arguments about what type of earth connection/wire/antenna 
to use it with.

Dave (G0DJA)