OpenBCM V1.07b3 (WIN32)

Packet Radio Mailbox

ON0AR

[BBS Antwerpen]

 Login: GUEST





  
K0CQ   > 50MHZ    08.04.07 08:43l 35 Lines 1591 Bytes #999 (0) @ WW
BID : 34400_W0AK
Read: GUEST
Subj: Re: Beam Design
Path: ON0AR<IW2OAZ<CX2SA<VE2RXY<VE3UIL<N9PMO<KB8DM<W6RYK<W8AKF<N9LYA<N9NDS<
      KQ0I<W0AK
Sent: 070407/1714Z @:W0AK.#CIA.IA.USA.NOAM #:34400 [Des Moines] $:34400_W0AK
From: K0CQ@W0AK.#CIA.IA.USA.NOAM
To  : 50MHZ@WW

For a start, G8MNY has sent out a few recently:
Msg#   TSLD  Dim  To    @ BBS   From   Date/Time Title       (LC-choice: *)
34208  BF    3855 TECH  @WW     G8MNY  0401/2134 6m Yagi from TV Antenna
34174  BF    3104 TECH  @WW     G8MNY  0331/1719 6m 6el Yagis
34171  BF    2467 TECH  @WW     G8MNY  0331/1619 6m 8el Yagi
34132  BF    4037 TECH  @WW     G8MNY  0330/1636 2m & 6m Band "Neptune" Aerial

And  virtually every ham handbook in the last 50 years has had  a 
few 6m antennas.

It is easy to add a 6m element to a spider type quad, but I'm  no 
fan  of  the quad. I'm using an ancient 5 element  commercial  6m 
yagi  that  the wind has broken down to just driven  element  and 
reflector and I'm still able to work 300 miles on CW with my 857. 
And its only 15 feet above the ground.

In  earlier times, I had a 80 meter double extended zepp  up  and 
built  an  antenna tuner for 6m and it worked very well.  I  made 
many  contacts  with that. I haven't yet tried to do that  to  my 
present 80 meter inverted V, but if matched at 6m it may get  out 
too. HF yagis probably won't get out as well as the tuned  center 
fed  wire, especially those with some sort of match at  the  feed 
point.

When  6  is open for sporadic E propagation, a wet noodle  is  an 
adequate  antenna,  when its not open, 7 elements on  a  30  boom 
makes  a  noticeable difference. But I've know of  daily  morning 
tropo  contacts  out to over 1000 miles from local  hams  running 
power and a single large 6m yagi.

73, Jerry, K0CQ @ W0AK.#CIA.IA.USA


Read previous mail | Read next mail


 01.06.2024 09:18:58lGo back Go up