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Re: LF: Re: VK1DSH reception in France WSPR 2 on 630m

To: [email protected]
Subject: Re: LF: Re: VK1DSH reception in France WSPR 2 on 630m
From: Dimitrios Tsifakis <[email protected]>
Date: Mon, 18 Feb 2013 09:17:05 +1100
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Hi Markus,

I have suggested to the local VK group to switch to radiated rather
than wasted (LOL) power :-)

Staying on a different frequency slot may be at the end what we will
do. It seems that 475.700 kc is a "noisier" part of the spectrum, and
many listeners in VK have complained about that. I will go with the
flow, whatever the group decides, I will do. From the receiving
perspective, leaving the WSPR on 475.700 kc is tempting, given the
density of decent signals emanating from Europe. Especially now that
we have an indication that it is possible. This probably will make
more sense in our winter.

73, Dimitris VK1SV



2013/2/18 Markus Vester <[email protected]>:
> Hi Dimitris,
>
> sorry for that. I noticed my error after I sent out the first mail, my only
> excuse being that I was pretty much overwhelmed by the fantastic news.
>
> Yes I saw that wspr activity is on the upsurge in VK. Stefan and I discussed
> this this afternoon, and one thought was that keeping split bands might be a
> better idea. When several stations engage in two-way attempts in the same
> subband, the receivers will be likely affected by overloading and
> noiseblanker desensitizing effects. So you might want too consider staying
> with separate slots.
>
> There was some uncertainty whether Dale's 50 W tag was meant to be TX power
> or ERP. Hereabouts we've sort of settled on stating ERP, simply because
> radiated power is the relevant quantity for SNR, whereas antenna
> efficiencies can vary vastly.
>
> Best 73,
> Markus (DF6NM)
>
>
> From: Dimitrios Tsifakis
> Sent: Sunday, February 17, 2013 9:09 PM
> To: [email protected]
> Subject: Re: LF: Re: VK1DSH reception in France WSPR 2 on 630m
>
> G'day Markus,
>
> just a quick clarification - it wasn't me, it was Dale VK1DSH that
> transmitted the famous packet received in France. Since that incident,
> we changed our WSPR frequency to comply with the European one and we
> will be transmitting as often as we can in order to find out if this
> can be repeated! Dale is radiating similar amounts of RF to me, which
> I calculate to be around 0.5 W.
>
> 73, Dimitris
>
>
>
> 2013/2/17 Markus Vester <[email protected]>:
>> Wow, that's excellent! I wouldn't have thought this is possible.
>> Congratulations to both Andy and Dimitris!
>>
>> Best 73,
>> Markus
>>
>>
>>
>> ----- Original Message -----
>> From: André Guyé
>> To: [email protected]
>> Sent: Sunday, February 17, 2013 1:08 PM
>> Subject: LF: VK1DSH reception in France WSPR 2 on 630m
>>
>> From F6CNI :
>>
>>
>>
>> Hello, I give you some info about the MF reception of Dale VK1DSH signal
>> here in France.
>>
>>
>>
>> For 2 weeks, the propagation between EU / VK on 160 meters is great, and I
>> had some CW QSO barefoot. I think that for this DX path the propagation on
>> MF may be similar than on 160 m ?
>>
>>
>>
>> At the date of this event, between the Dale and Andy QTH, the best moment
>> is
>> a bit before the grey line sunset in France, when the sun elevation is
>> about
>> 3°. But on 160 meters that needs especially good propagation and the
>> opening
>> is rare and very short, 5 to 15 minutes only. This moment is now around
>> 1645
>> TU in my QTH. A bit later, when the sunrise at VK land in grey line, that
>> is
>> a second short period for success, around 1920 TU. That is true only for
>> south to north hemisphere DX.
>>
>>
>>
>> For north / north path (EU to east coast or centre of States) the best
>> moment is simply in the middle of the night. But perhaps for longer path,
>> as
>> west coast the sunrise in Europe is better ?
>>
>>
>>
>> My garden is quite large but in centre of the city, a noisy location.
>> Antennas for LF / MF are an 85 meters long Inverted L and a K9AY. RX are
>> IC7200, IC706MK2 and a FT1000MP.
>>
>>
>>
>> Only 3 miles away from my home, there is a golf. That is my second hobby.
>> Due to the very bad weather in France for one month, there is a very
>> little
>> player’s activity. So a week ago I hang on border of the golf a simple
>> beverage using a very light wire. About 500 or a bit more meters long
>> aiming
>> to 80° azimuth. For the test yesterday I had in my car the IC7200 on 473.5
>> USB and a portable computer (only 2 hours of autonomy) with 3G. I stay on
>> place only during 40 minutes. That is the story. I catch one spot from
>> Dale.
>>
>>
>>
>> What that means ? The Beverage and not power line helps a lot giving a
>> very
>> low noise level. The use of the 473.5 USB QRG is good, because there is
>> not
>> any QRM on this frequency. And certainly a great propagation day, so I was
>> lucky listening the good frequency at the best moment. What about the use
>> of
>> long period of TXing, as WSPR15 or QRSS ? For this very long path, I think
>> that the opening duration time is too short for that use ?
>>
>>
>>
>> Now, as Dale said to me in a mail, one spot is not sufficient to valid
>> that.
>> So, I’ll try again but it is necessary for me to hurry, because the
>> beverage
>> antenna must be dismounted in a short time.
>>
>>
>>
>> For information, I use some codes when I am receiving LF, MF or 160m:
>>
>>
>>
>> F6CNI : normal, listening only WSPR2
>> F6CNI/2 : I am listening both WSPR2 and WSPR15 (giving F6CNI/15 reports
>> for
>> WSPR15)
>> F6CNI/RX1 and F6CNI/RX2 : I use 2 RX with 2 RX antennas
>> F6CNI/BEV : one RX is using the Beverage on the Golf location.
>>
>>
>>
>> Best 73. Sorry my poor english.
>>
>>
>>
>> F6CNI Andy. JN19QB
>>
>>
>>
>>
>> From: Markus Vester
>> Sent: Sunday, February 17, 2013 10:53 AM
>> To: [email protected]
>> Subject: Re: LF: WSPR 2 and WSPR 15 on 630m
>>
>> There's a thread in the VK 600m group discussing this unusual wspr spot:
>> http://groups.yahoo.com/group/600m/message/6415
>>
>> Best 73, Markus (DF6NM)
>>
>> ----- Original Message -----
>> From: g3zjo
>> To: [email protected]
>> Sent: Saturday, February 16, 2013 10:37 PM
>> Subject: Re: LF: WSPR 2 and WSPR 15 on 630m
>>
>> Andy
>>
>> Was this direct?
>>
>>   2013-02-16 16:44      VK1DSH      0.475078      -29      0      QF44ms
>> 50      F6CNI/BEV      JN19qb      16832     310
>>
>> Eddie G3ZJO
>>
>


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