All,
Bah, humbug. We got another 5 inches of snow overnight. We're running out
of room to put the snow. At least I can stay inside and play on the radio.
Tom makes some good points. Two comments.
First, when I said advantage, all I meant was there is less fading on HF
when receiving on a
On 2014-02-04 11:02, Herb Schoenbohm wrote:
loss of signal results. I would also presume that the construction of
a
good CP antenna for 160 would be very difficult to perfect. I have
seen
some antennas for AMSAT work attempting to produce a CP type antenna by
have two interlaced yagis, one
Now that the CQWW 160 meter CW contest log submission deadline is past,
here is an update from Ramon (PZ5RA) about PZ1AA.
---
This morning I got a call from the authorities and they told me they have
never submitted this call. So it was a pirate or a fake.
I am pretty new to 160 meters, but just got done with a diversity experiment
with FT5ZM last night. My results go along with W8JI’s comments. I heard them
on 1.8265 at 2215 UT, and then tried to configure my receiver to utilize space
diversity, putting my 90 ft vertical in the left ear, and a
You can temporarily use an inductor in series with the cap to extend the
range. It will not be a good idea for transmitting, but OK for tuning.
- Original Message -
From: Carl Braun carl.br...@lairdtech.com
To: Tom W8JI w...@w8ji.com
Cc: 160 topband@contesting.com
Sent: Tuesday,
Hi Carl,
This has to be the big picture of the system and the goals, and not a narrow
picture of what a wave is doing.
I think in the big picture we all agree it is useless.
First, when I said advantage, all I meant was there is less fading on HF
when receiving on a circularly polarized
?
I am considering the purchase of a Pixel Technologies BevPro-1 Beverage antenna
and wondered if anyone on the list has used one?
http://www.pixelsatradio.com/product/the-ultimate-reversible-beverage-antenna-system/
There are a couple of good reviews on eham.net, but I'd welcome some more
In producing a good satellite AMSAT antenna KLM uses the method of quarter
wave stagger of two yagis. One is about a quarter wave ahead of the other
and fed with a 1/4 wave delay line.
To be circular, one is either staggered 1/4 wave forward and they are fed in
phase, or they are even without
Hello All,
The just updated logs from FT5ZM shows
my 160 Meter QSO on 02/03/14 at 0010Z!!
If your QSO was missing recheck the on line log!!
73,
Ted K2QMF
How to Stay Asleep
Researchers have discovered a revolutionary secret to stay
Tom
'
The way I see it is if the rate is not 0.546 uS or so, you do not have
circular polarization.You have a slowly rotating wave, and the sense of the
RX antenna would be meaningless unless you could time-sync rotation at that
slow fading rate.
Someone correct me if I am wrong.
100%
I would sure like to know the evaluation of the team at FT5ZM of this
coaxial cable antenna by Pixel. At first there were reports of not
hearing good on the low bands. Several posted remarks that different RX
antennas were being constructed for better reception on the low bands.
I would
I would sure like to know the evaluation of the team at FT5ZM of this
coaxial cable antenna by Pixel. At first there were reports of not
hearing good on the low bands. Several posted remarks that different RX
antennas were being constructed for better reception on the low bands.
I would
I purchased 1 set, it arrived yesterday. I already have 2 (coax) 800 Ft
beverages installed and will try the unit on the NE beverage first.
Butwe have about 15 inches of snow and more coming so I don't
think it will be installed until next week.
I will report as soon I have the
The way I see it is if the rate is not 0.546 uS or so, you do not have
circular polarization.You have a slowly rotating wave, and the sense of
the
RX antenna would be meaningless unless you could time-sync rotation at
that
slow fading rate.
Someone correct me if I am wrong.
100% correct
I
Tom,
Perhaps it is much simpler than that.
Recalling KL7AJ's article,
http://www.nxtbook.com/nxtbooks/arrl/qst_201203/index.php#/42 he states
that the magnetic field of the earth splits every HF signal into a right
hand or left hand circular wave. Add to that the unevenness of the
ionosphere
James
You brought a good article about HF propagation, however the behavor on 160m
is different from HF. If you check on the KL7A arcticle figure 1 what is
happening between 1 and 2 MHz you can see that the green and red does not
behaivor the same way as above 2 MHz.
This subject is
Jose,
I am only presenting the possibility that if the ionosphere (where 160
propagation happens) isn't uniformly smooth and instead consists of warps,
wrinkles and tilts that in a *dynamic ionosphere*, this could be at least
one reason we are experiencing slow fades.
Elliptical polarization,
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