On Apr 7, 4:21*pm, D Peter Maus wrote:
On 4/7/11 17:06 , bpnjensen wrote:
On Apr 7, 2:07 pm, "D. Peter *wrote:
On 4/7/11 13:34 , bpnjensen wrote:
SEYCHELLES: BBC Indian Ocean Relay Station, Mahe Island, 7445, f/d
letter V/s by Herve Cherry in 58 days by airmail; for airmail report
in EE (8 February 2011) + IRC; on letterhead for BBC IORS with aerial
photo. Letter also includes station history and transmitter specs
(Jensen-CA)
Here is a photo:
http://www.facebook.com/photo.php?pi...1&id=106517568
* *Now that you've had the new antenna up for awhile, can you give us
an evaluation?
* *p
OK - recall that it is an inverted L 30 feet high and 65 feet long,
fed by ~40 feet of coax in two sections with both a grounded matching
transformer at the base and a 1:1 grounded line isolator where the
coax enters the house (which explains the two sections, one either
side of the isolator). *It runs above the rooftop in a nearly N-S
direction.
It's quite good - on its own it transmits less noise to the radio than
the one it replaces, with a stronger signal, and it often provides a
good match with the DX-Ultra as a phasing antenna for noise
reduction. *Using these two combined, I have been able to capture logs
of audible stations that before were either in the mud or just faint
carriers.
I am very pleased with it; and I would not mind having another
identical to it to run through the MFJ-1026 for noise reduction. *In
order to to do the hardest DX work, though, I will need to get away
from town.
Bruce
* *Very nice work. Thanks for the update. I may try this with my own DX
Ultra at the cabin.
* *p
Hmm - do you have QRM at your cabin? My guess is that, the more rural
(and QRM-free) the setting, the less useful a set of phased antennae
would be. They don't work on atmospheric/QRN noise very well. MFJ and
Timewave says they work on things like lightning crashes, but you'd be
very hard-pressed to twiddle those knobs fast enough to use it for
that purpose.
Having said that, two DX-Ultras phased together for noise abatement
might be just dandy, and they don't require grounding for exemplary
results.
Bruce