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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: "Graham" <[email protected]>
Date: Tue, 28 Dec 2010 18:04:46 -0000
Importance: Normal
In-reply-to: <[email protected]>
References: <F3C727618E8F43C3B0EA41422C3A47AC@AGB><[email protected]><101B609FB6D54B6D9FF4102ED3E158BE@AGB><[email protected]><[email protected]><E69D6187E8264E02B84BCA507841D381@AGB> <[email protected]>
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Ok Warren

Not sure what the land is like in Tennessee , Andy says he was getting reliable wspr decodes over 400/500 miles , but that was from -LF- hams , all the same , with the Ae and power , that's going some .... thought it was a bit like 500 , where compared to 160 , ground wave is good to 70 miles

If its a  un licensed band  how  did  you  get a  licence ?

Q what dose the licence say about modes of emission (hint > recent lofer posts )

73  - G..


--------------------------------------------------
From: "Warren Ziegler" <[email protected]>
Sent: Tuesday, December 28, 2010 5:33 PM
To: <[email protected]>
Subject: Re: LF: 160 to 190 KHz a real magic band ?


Graham,

  Yes 2000km is very good for one watt but is not to be expected on a
regular basis!
I have an experimental license that lets me run 10W ERP on 160-190kHz,
my best guess is that with 250W out my ERP is less than 1/2W.  Most of
the time 250W is not sufficient to cover 2000km so you can imagine
just how rare a 2000km reception is with 1 Watt !!

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


On Tue, Dec 28, 2010 at 12:23 PM, Graham <[email protected]> wrote:
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..











--









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






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