[UK-CONTEST] Antenna for SSB field day
Dave Sergeant
dave at davesergeant.com
Sun Aug 15 05:49:28 PDT 2010
On 15 Aug 2010 at 13:19, Ian White GM3SEK wrote:
> But the current RSGB NFD rules require two *different* maximum heights
> in the Restricted sections. For SSB NFD it's 15m, but why is it only 11m
> for CW NFD - with Top Band to cover as well? That extra 4m makes a
> notable difference for both horizontal and vertical antennas.
>
And if you are going to review this rule, it also applies to the Low
Power Contest (http://www.rsgbcc.org/hf/rules/2010/rqrp.shtml) where
the limit is also 11m.
In my case 11m fits in well with my DK9SQ 10m mast. But the site I used
this year had high trees which could also have served as supports - not
sure I could have kept within the 11m limit if I did that, but could
have been handy with a 15m limit.
As it happens my 90ft doublet was probably only around 8m at its centre
and much lower at the ends, so well within the rules.
73 Dave G3YMC
http://www.davesergeant.com
More information about the UK-Contest
mailing list