From: James Cowburn <jim.cowburn@outlook.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Thread-Topic: LF: First MF transmission from Oscar LU1DOW
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Date: Thu, 7 Jun 2018 11:19:19 +0000
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 Content preview:  Great work and as has been said, nice to see a tube amp doing
    the heavy lifting ! I wonder if I could press my TL922 into service on MF?
    It's lying idle since I got my SPE 1K. Any comments on how I might need to
    mod it much appreciated [...] 
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Subject: RE: LF: First MF transmission from Oscar LU1DOW
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Great work and as has been said, nice to see a tube amp doing the heavy lifting !

I wonder if I could press my TL922 into service on MF?   It's lying idle since I got my SPE 1K.  Any comments on how I might need to mod it much appreciated 

At the moment, I feed the signal from my Elad SDR Tx from the    0dBm output into a broadband 1w ebay special and then the 1w goes into a Hafler 9505 and gives me about 500W up the wire

Cheers


Jim G7NKS 

-----Original Message-----
From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Chris Wilson
Sent: 07 June 2018 11:58
To: VIGILANT Luis Fernández <rsgb_lf_group@blacksheep.org>
Subject: Re: LF: First MF transmission from Oscar LU1DOW


Hello Luis,

Please  pass  congratulations  to  Oscar  and  good  luck  on his next endeavour. Nice to see a valve (tube) amp in use, I am still hankering after building one myself for LF. Good to see Argentina on the MF map, I always thought they were all beef farmers or wealthy polo players ;)

Thursday, June 7, 2018, 9:17:14 AM, you wrote:

>   
>  
>  
> Hi MF
>  
>  
>  
> While there is only residual activity in north hemisphere, we are 
> aproaching winter solstice in south hemisphere
>  
>  
>  
> Oscar, LU1DOW, confirms his first QRSS transmissions were successfully 
> received by LU8YD at 1000km. See picture attached
>  
> This is the first MF ham transmission in Argentina. A great 
> achievement
>  
>  
>  
> Oscar is using a tube amplifier with a 4CX1500A running about 1400w if 
> I recall correctly. The antena is a Marcony T
>  
> 20m long and 20m high. He was using this setup in LF and recently 
> modified it to MF but the bad weather delayed
>  
> the transmissions untill now
>  
>  
>  
> Next goal is to modify the exciter to be able to work with WSPR.
> Martin YV7MAE and Ruben EB8ARZ looks like ideal
>  
> candidates to receive his transmission
>  
>  
>  
> Good luck Oscar !
>  
>  
>  
> 73 de Luis
>  
> EA5DOM
>    


-- 
Best regards,
 Chris                            mailto:dead.fets@gmail.com