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References: <4C86CD6A.7030507@iup.uni-heidelberg.de>
Date: Fri, 10 Sep 2010 11:01:50 +0100
Message-ID: <AANLkTinYj0PCyYWVsX5aXJUotO0y_mypBW1XDauwcTr3@mail.gmail.com>
From: "james.cowburn e-mail" <james.cowburn@virgin.net>
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Ik1HSS & RA3YO
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Hi Stefan

If you see below, Ofocm have asked me to demosntrate some calculations to
show my ERP.  any help on providing a "robust" and "defendable" response
would be appreciated if you can help me.

I'll be using an inv l antenna 10m/40m fed via a 1.4H coil or perhaps
LOPT.   Tx output will be from an audio amp at 200W running QRSS across a
freq range of say 6khz to 10khz.

My earth conditions are fair to poor with average soil quality and a sever=
al
rods and radials but no great expanse of buried copper.

could you send me some numbers I can then forward back to Ofcom.

i'm guessing that with a limited set up such as that the ERP will be in th=
e
nanowatt/femtowatt ranges

thanks in advance for any help

with best regards


jim G7NKS










Hello James,

As you know we are now progressing the applications for a SRP NoV for 9kHz
and we need a element of clarification concerning yours please.

We have observed what might be an anomaly relating to the calculated
efficiency referred to on the page titled =93Proposals for Site=94. Could=
 you
please provide us with figures that were used to arrive at the power level=
s
quoted under ERP?

An early response would be welcomed in order that we can put all of the 3
current applications to the Met Office as one offering.

Any concerns please let me know.

73

Rod  (G3TXA)

Rod Wilkinson
OLC Senior Associate, Amateur Radio
020 7783 4488 (direct line)
Rod.wilkinson@ofcom.org.uk

Ofcom
Riverside House
2a Southwark Bridge Road
London SE1 9HA
020 7981 3000
www.ofcom.org.uk

2010/9/8 Stefan Sch=E4fer <schaefer@iup.uni-heidelberg.de>

> LF,
>
> This weekend i saw the first time IK1HSS and RA3YO (disturbed by my own
> transmission from France) in my QRSS-60 grabber window.
> Tnx to them for the activity!
>
> 73, Stefan
>

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<div>Hi Stefan</div>
<div>=A0</div>
<div>If you see below, Ofocm have asked me to demosntrate some calculation=
s to show my ERP.=A0 any help on providing a &quot;robust&quot; and &quot;=
defendable&quot; response would be appreciated if you can help me.</div>
<div>=A0</div>
<div>I&#39;ll be using an inv l antenna 10m/40m fed via a 1.4H coil or per=
haps LOPT.=A0=A0 Tx output will be from an audio amp at 200W running QRSS=
 across a freq range of say 6khz to 10khz.</div>
<div>=A0</div>
<div>My earth conditions are fair to poor with average soil quality and a=
 several rods and radials but no great expanse of buried copper.</div>
<div>=A0</div>
<div>could you send me some numbers I can then forward back to Ofcom.</div=
>
<div>=A0</div>
<div>i&#39;m guessing that with a limited set up such as that the ERP will=
 be in the nanowatt/femtowatt ranges</div>
<div>=A0</div>
<div>thanks in advance for any help</div>
<div>=A0</div>
<div>with best regards</div>
<div>=A0</div>
<div>=A0</div>
<div>jim G7NKS</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>=A0</div>
<div>Hello James,<br>=A0<br>As you know we are now progressing the applica=
tions for a SRP NoV for 9kHz and we need a element of clarification concer=
ning yours please.<br>=A0<br>We have observed what might be an anomaly rel=
ating to the calculated efficiency referred to on the page titled =93Propo=
sals for Site=94. Could you please provide us with figures that were used=
 to arrive at the power levels quoted under ERP?<br>
=A0<br>An early response would be welcomed in order that we can put all of=
 the 3 current applications to the Met Office as one offering.<br>=A0<br>A=
ny concerns please let me know.<br>=A0<br>73<br>=A0<br>Rod=A0 (G3TXA)<br>=
=A0<br>Rod Wilkinson<br>
OLC Senior Associate, Amateur Radio<br>020 7783 4488 (direct line)<br><a=
 href=3D"mailto:Rod.wilkinson@ofcom.org.uk">Rod.wilkinson@ofcom.org.uk</a>=
<br>=A0<br>Ofcom<br>Riverside House<br>2a Southwark Bridge Road<br>London=
 SE1 9HA<br>
020 7981 3000<br><a href=3D"http://www.ofcom.org.uk/">www.ofcom.org.uk</a>=
<br><br></div>
<div class=3D"gmail_quote">2010/9/8 Stefan Sch=E4fer <span dir=3D"ltr">&lt=
;<a href=3D"mailto:schaefer@iup.uni-heidelberg.de">schaefer@iup.uni-heidel=
berg.de</a>&gt;</span><br>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT: 1ex; MARGIN: 0px=
 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">LF,<br><br>This weekend i saw=
 the first time IK1HSS and RA3YO (disturbed by my own transmission from Fr=
ance) in my QRSS-60 grabber window.<br>
Tnx to them for the activity!<br><br>73, Stefan<br></blockquote></div><br>

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