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Re: LF: 160 to 190 KHz a real magic band ?

To: <[email protected]>
Subject: Re: LF: 160 to 190 KHz a real magic band ?
From: <[email protected]>
Date: Tue, 28 Dec 2010 13:48:10 -0500
References: <F3C727618E8F43C3B0EA41422C3A47AC@AGB><[email protected]><101B609FB6D54B6D9FF4102ED3E158BE@AGB><[email protected]> <[email protected]> <E69D6187E8264E02B84BCA507841D381@AGB>
Reply-to: [email protected]
Sender: [email protected]

Graham

Long distance skywave reception of 1-watt Part 5 stations isn't that unusual during the winter months. While the reception of Andy's WSPR signal at 1200 km looks like somewhat of a feat ... it really wasn't. When Andy runs 'XR' in QRSS30 his signal is 'welding goggle' (bright) copy at my location for most of the night. Other distant stations routinely copied here are 'SIW' in Illinois at 1200 miles and 'WEB' in Texas at 2300 km and these are all over land paths. Propagation does seem to favor N-S rather than E-W directions.

Jay W1VD  WD2XNS  WE2XGR/2


----- Original Message ----- From: "Graham" <[email protected]>
To: <[email protected]>
Sent: Tuesday, December 28, 2010 12:23 PM
Subject: Re: LF: 160 to 190 KHz a real magic band ?


1/4  KW ?

Andy is talking about 1 watt dc feed to the PA and a short Ae , I thought 2000 kmt was good going for 1 watt

is it the  same  band ?

G..

--------------------------------------------------
From: "Warren Ziegler" <[email protected]>
Sent: Tuesday, December 28, 2010 5:08 PM
To: <[email protected]>
Subject: Re: LF: 160 to 190 KHz a real magic band ?


I occasionally put a beacon on the 180 kHz band with 250 Watts out and
have been copied in France and the Netherlands during the time each
night that Europe 1 is off.
No magic, about the same results as 137kHz except that 137 is quieter.


--
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1

On Tue, Dec 28, 2010 at 11:40 AM, Gary - G4WGT <[email protected]> wrote:
Graham,
Have a listen after dark, I seem to remember it was quite horrendous last
time I looked at that part of the spectrum. I will have another listen
tonight. I think the EU chaps wait until Europe1 has stopped Txing. Here is
one frequency I know of, extract from Joe's e-mail.
VO1NA, 184.509.3kHz
TX about 5 watts 0.4 amps to 100m wire at 15 m high.
73,
Gary - G4WGT - IO83qo.
LF MF Grabber - Web Site - Blogspot - 9kHz Grabber



On 28 December 2010 16:22, Graham <[email protected]> wrote:

Ok Gary,

Seems to  be  some quite big  gaps  in that  spectrum , big  enough  for
a  cw filter and  wspr signal to  sit  with  no  splash ?

G

Nb looks like someone has the  spam  filter -mal-adjusted- ?

----- Original Message -----
From: Gary - G4WGT
To: [email protected]
Sent: Tuesday, December 28, 2010 2:54 PM
Subject: Re: LF: 160 to 190 KHz a real magic band ?
Graham,
I have occasionally read mails on LF regarding U.S. 184kHz qrs beacons &
captures from Europe. Apparently there is a very powerful broadcast station
in Europe on a near frequency which causes high qrm when on, I believe it is
"Europe1"
Gary - G4WGT.

On 28 December 2010 12:16, Graham <[email protected]> wrote:

Lifted  from the  WSPR  web site  http://wsprnet.org/drupal/

1 watt and  15  mtrs  of antenna ,decoding  over  1148 kmtrs  , (best
round 2000k)    seems  to  make the  137  attempts look a little 'coy with
somewhat  bigger power levels and  rather  large  arrays , (possibly
mal-adjusted ?)

Is this  a band  like 500  with  enhanced  propagation ?

WHAT IS THE  POSSIBILITY OF A  TA  DECODE ?

The frequency range is 160 to 190 KHz. This is most commonly known as
Part-15 operation ( under our FCC Part-15 rules ). The basics: Power is
limited to 1 Watt DC Input to the Final amplifier, and the antenna length
cannot exceed 15 meters, including the feed line,

(XR4TN  is the experimental  call  of  KU4XR)

2010-12-10 11:16 XR4TN 0.185701 -27 0 EM75xr +30 1.000 W1VD FN31is 1148
G..











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