Message-ID: <2145B71AF46A4B9D9C42B3A5D790EC09@standard9dmup1>
From: "Walter Staubach" <wum.staubach@t-online.de>
To: <rsgb_lf_group@blacksheep.org>
References: <000c01cd1a16$4402a880$0401a8c0@xphd97xgq27nyf> <158CD65E21CC4DF18FEFD2AC05A133B2@AGB> <33B9FBF225314F3CAF2E89A0BE6AE36D@standard9dmup1> <4F8AB3A8.6040701@freenet.de>
Date: Sun, 15 Apr 2012 21:19:47 +0200
MIME-Version: 1.0
Subject: Re: LF: Titanic acty
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Wolf,
       my progblem is - I have only one wire for 600m, 80m and 40m. So 
switching with all the inside- and outside coils and tuning takes a lot of 
time. I think it is the same with DI2AF.
73
Walter DI2AG / DJ2LF

----- Original Message ----- 
From: "wolf_dl4yhf" <dl4yhf@freenet.de>
To: <rsgb_lf_group@blacksheep.org>
Sent: Sunday, April 15, 2012 1:40 PM
Subject: Re: LF: Titanic acty


> Greetings all,
>
> Nice activity on MF last night. Would have liked a bit more crossband 
> activity (especially from the DI stations) but none of them seems to have 
> been active for xband QSO with those poor fellows without tx permission on 
> 500 kHz.
>
> I could significantly improve the rx quality at the club station (DF0WD) 
> so a couple of QSOs was possible with "armchair" copy this end (rx on MF). 
> Thanks everyone involved, especially Finbar and Graham.
>
> The big difference was a large resonant tuning coil (which will one fine 
> day be used as a loading coil). 20 cm long, 15 cm diameter, 60 turns of 
> 1.8 mm enamelled copper wire neatly separated by a plastic wire 
> ("Maurerschnur" in german, can't translate that into english). L approx. 
> 320 uH, and Q at 500 kHz about 500 (calculated). The primary's ends were 
> connected to a 10 meter vertical wire, and the "MF earth" on an earthstake 
> located as far away from the shack and mains as possible. A secondary 
> winding with few turns (tapped for 50 ohms) acted as insulation between 
> "shack earth / mains ground" and "antenna earth", spaced a centimeter 
> above the primary coil layer. When connecting "ground" and "antenna 
> earth", there was tremendous QRM (only OK2BVG, G3KEV, and IQ2MY audible). 
> With separate grounds, DI2AG, DI2AF, DI2AM, many UK, PA and OK stations 
> were nicely audible after sunset.
>
> (crossband) QSO were made with EI0CF, GB100MGY, OK2BVG, IQ2MI. Sorry to 
> have missed you Mal, you were very solid copy during your QSO with Finbar.
>
> All the best,
>   Wolf
>
>
>