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Re: LF: 8.970.025Khz

To: <[email protected]>
Subject: Re: LF: 8.970.025Khz
From: "mal hamilton" <[email protected]>
Date: Tue, 8 Mar 2011 20:08:55 -0000
References: <E3924D4712E94AE0BAD991EBE9234060@ns94d01ae4d850> <[email protected]> <749642B895394842B964AF7A4CD32F44@ns94d01ae4d850> <[email protected]> <005901cbdd99$bfa46d30$0401a8c0@xphd97xgq27nyf> <[email protected]> <007401cbdd9f$089a2750$0401a8c0@xphd97xgq27nyf> <[email protected]> <008c01cbdda7$81e29c20$0401a8c0@xphd97xgq27nyf> <1299614352.2199.32.camel@gerhard-desktop>
Reply-to: [email protected]
Sender: [email protected]
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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