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Date: Tue, 28 Dec 2010 12:33:35 -0500
Message-ID: <AANLkTin++TzB_3gVX1gQ2oVaA5gQYChg951=+k_hkRsf@mail.gmail.com>
From: Warren Ziegler <wd2xgj@gmail.com>
To: rsgb_lf_group@blacksheep.org
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Subject: Re: LF: 160 to 190 KHz a real magic band ?
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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 !!

--=20
73 Warren K2ORS
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XGJ
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XSH/23
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XEB/2
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XGR/1


On Tue, Dec 28, 2010 at 12:23 PM, Graham <g8fzk@g8fzk.fsnet.co.uk> wrote:
> 1/4 =A0KW ?
>
> Andy =A0is talking about =A0 1 =A0watt =A0 dc =A0feed =A0to the =A0PA =
=A0and a =A0short Ae , I
> thought =A02000 =A0kmt was good =A0going for =A01 watt
>
> is it the =A0same =A0band ?
>
> G..
>
> --------------------------------------------------
> From: "Warren Ziegler" <wd2xgj@gmail.com>
> Sent: Tuesday, December 28, 2010 5:08 PM
> To: <rsgb_lf_group@blacksheep.org>
> 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
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0WD2XGJ
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0WD2XSH/23
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0WE2XEB/2
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0WE2XGR/1
>>
>> On Tue, Dec 28, 2010 at 11:40 AM, Gary - G4WGT <g4wgt@tiscali.co.uk>
>> 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. He=
re
>>> 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 <g8fzk@g8fzk.fsnet.co.uk> wrote:
>>>>
>>>> Ok Gary,
>>>>
>>>> Seems to =A0be =A0some quite big =A0gaps =A0in that =A0spectrum , big=
 =A0enough =A0for
>>>> a =A0cw filter and =A0wspr signal to =A0sit =A0with =A0no =A0splash=
 ?
>>>>
>>>> G
>>>>
>>>> Nb looks like someone has the =A0spam =A0filter -mal-adjusted- ?
>>>>
>>>> ----- Original Message -----
>>>> From: Gary - G4WGT
>>>> To: rsgb_lf_group@blacksheep.org
>>>> 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 beacon=
s &
>>>> captures from Europe. Apparently there is a very powerful broadcast
>>>> station
>>>> in Europe on a near frequency which causes high qrm when on, I believ=
e
>>>> it is
>>>> "Europe1"
>>>> Gary - G4WGT.
>>>>
>>>> On 28 December 2010 12:16, Graham <g8fzk@g8fzk.fsnet.co.uk> wrote:
>>>>>
>>>>> Lifted =A0from the =A0WSPR =A0web site =A0http://wsprnet.org/drupal/
>>>>>
>>>>> 1 watt and =A015 =A0mtrs =A0of antenna ,decoding =A0over =A01148 kmt=
rs =A0, (best
>>>>> round 2000k) =A0 =A0seems =A0to =A0make the =A0137 =A0attempts look=
 a little 'coy
>>>>> with
>>>>> somewhat =A0bigger power levels and =A0rather =A0large =A0arrays ,=
 (possibly
>>>>> mal-adjusted ?)
>>>>>
>>>>> Is this =A0a band =A0like 500 =A0with =A0enhanced =A0propagation ?
>>>>>
>>>>> WHAT IS THE =A0POSSIBILITY OF A =A0TA =A0DECODE ?
>>>>>
>>>>> 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 =A0is the experimental =A0call =A0of =A0KU4XR)
>>>>>
>>>>> 2010-12-10 11:16 XR4TN 0.185701 -27 0 EM75xr +30 1.000 W1VD FN31is=
 1148
>>>>> G..
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>
>>
>
>
>
>



--=20
73 Warren K2ORS
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XGJ
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XSH/23
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XEB/2
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XGR/1