Gerhard
In that case I will not bother with 9 kcs. I cannot wait all day or all
month for a trace on a screen
g3kev
----- Original Message -----
From: "Gerhard Hickl" <[email protected]>
To: <[email protected]>
Sent: Tuesday, March 08, 2011 7:59 PM
Subject: Re: LF: 8.970.025Khz
> Mal and group!
>
> "A couple of Hz"....is way too much off for seriously transmitting on
> VLF at low speeds. And low speeds are mostly required to detect the
> signal. A drift of 100mHz is the minimum requirement for transmitting on
> VLF, except you produce an outstanding strong signal at the site of
> reception.
>
> Generating the TX-frequency by SpecLab while locking at the same time
> either to GPS (via 10kHz tone) or a stable VLF transmitter like DHO38 or
> GQD enables you to keep the drift within 1mHz or even lower.
>
> SO 954µHz/bin (for QRSS3000) or half of it for 6000 is a proper
> resolution for receiving VLF.
>
> 73
> OE3GHB
> Gerhard
>
>
>
>
>
>
>
>
>
> Am Dienstag, den 08.03.2011, 15:43 +0000 schrieb mal hamilton:
> > Gary es Co
> > Apart from antennas etc anyone a couple of hz off frequency will not
> > be seen, and like I said what I have seen so far are not that stable
> > The aim surely on 9 kcs is to generate a reasonable erp that can be
> > copied at say QRS 60 or faster.
> > g3kev
> >
> > ----- Original Message -----
> > From: Gary - G4WGT
> > To: [email protected]
> > Sent: Tuesday, March 08, 2011 3:12 PM
> > Subject: Re: LF: 8.970.025Khz
> >
> >
> > Hi Mal,
> >
> >
> > I believe I would as well if I had the antenna's you have but
> > they won't fit in my small garden.
> >
> >
> > Cheers, Gary - G4WGT.
> >
> >
> >
> > On 8 March 2011 14:42, mal hamilton <[email protected]>
> > wrote:
> > That is why they see nothing except local signals. I
> > copied OE5ODL and DK7FC in QRS3.
> > mal/vg3kev
> >
> >
> > ----- Original Message -----
> > From: Gary - G4WGT
> > To: [email protected]
> >
> > Sent: Tuesday, March 08, 2011 2:22 PM
> > Subject: Re: LF: 8.970.025Khz
> >
> >
> > Hi Mal,
> >
> >
> > Most others are monitoring using half my
> > bandwidth ie.Width of one FFT-bin: 423 uHz ,
> > mine is 954 uHz.
> >
> >
> > Cheers, Gary - G4WGT.
> >
> >
> > On 8 March 2011 14:04, mal hamilton
> > <[email protected]> wrote:
> > Gary
> > Except a signal is extremely stable
> > your bandwidth is too narrow. Most I
> > have observed so far are not stable.
> > mal/g3kev
> >
> > ----- Original Message -----
> > From: Gary - G4WGT
> > To:
> > [email protected]
> >
> > Sent: Tuesday, March 08, 2011
> > 12:07 PM
> > Subject: Re: LF: 8.970.025Khz
> >
> >
> > Hi All,
> >
> >
> > 9kHz grabber back on, loop
> > beamed ESE (approx 110 deg)
> > from IO83qo. M0BMU pre-amp
> > with 7kHz to 10kHz filter.
> >
> >
> >
http://dl.dropbox.com/u/15990181/9khz.jpg
> >
> >
> > 73, Gary - G4WGT.
> >
> > On 8 March 2011 09:27, henny
> > van elst <[email protected]>
> > wrote:
> > Tu Roger,
> >
> > the tx is still on
> > henny pa3cpm
> > 73's
> > ----- Original
> > Message -----
> > From: Roger
> > Lapthorn
> > To:
> >
[email protected]
> > Sent: Tuesday,
> > March 08, 2011
> > 9:35 AM
> > Subject: Re:
> > LF:
> > 8.970.025Khz
> >
> >
> >
> > Henny
> >
> >
> > Monitoring
> > overnight in
> > 423uHz BW
> > resulted in no
> > copy of your
> > signal I am
> > afraid.
> >
> >
> > 73s
> > Roger G3XBM
> >
> > Via my 2.4GHz
> > handheld (iPod
> > Touch 4g)
> >
> > On 7 Mar 2011,
> > at 21:47,
> > "henny van
> > elst"
> > <[email protected]>
wrote:
> >
> >
> >
> > > Hi LF,
> > > The tx is
> > > on,
> > >
> > >
freq.8.970.025Khz
> > > antenne
> > > curent
> > > 200mA,
> > > Henny pa3cpm
> > > 73's
> >
> > ______________
> > Geen virus
> > gevonden in
> > dit bericht.
> > Gecontroleerd
> > door AVG -
> > www.avg.com
> > Versie:
> > 10.0.1204 /
> > Virusdatabase:
> > 1497/3489 -
> > datum van
> > uitgifte:
> > 03/07/11
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
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