Thanks for the info Mal .......... Sorry didn't hear the earlier QSO but it
answers the question thanks
Thanks Graham. Been lucky up to now got two Sticks they double as my PC TV and
dig radio RX and work incredibly well since they double as a Wide band SDR RX
for ham radio they are useful tools.
The Up converter although a bit bulky works fine and am loathed to cut into the
sticks but may have a play. Thank you for the info.... it has been logged!
73 es GL Pete M0FMT IO91UX
--- On Sun, 29/6/14, mal hamilton <[email protected]> wrote:
> From: mal hamilton <[email protected]>
> Subject: Re: Re: LF: Fw: : Re: [rsgb_lf_group] Re:: 100KHz-1.7GHz full band
> UV HF RTL-SDR USB Tuner Receiver: How to get HF to work?
> To: [email protected]
> Date: Sunday, 29 June, 2014, 14:16
> Pete
> I was on this morning and worked G3DXZ also heard the others
> afterwards in
> QSO
> MAL/G3KEV
>
> ----- Original Message -----
> From: "M0FMT" <[email protected]>
> To: <[email protected]>
> Sent: Sunday, June 29, 2014 12:50 PM
> Subject: Fw: Re: LF: Fw: : Re: [rsgb_lf_group] Re::
> 100KHz-1.7GHz full band
> UV HF RTL-SDR USB Tuner Receiver: How to get HF to work?
>
>
> Hi Graham
>
> As you may remember I use an up converter for HF. I would
> like to try the
> direct conversion method can you advise where I make the
> connection. Have
> you done a close up jpg of the chip??
>
> Mal as a matter of interest were you keying up a coup[le of
> time this
> morning on about 472.5 at around 10:20 UK time.? I was
> listening to G3DXZ
> who did a break ditdit dahdah ditdit's when we heard a
> couple of short
> dashes...... which is unusual considering the activity on
> the band....... no
> "pack drill" just an open question?.
>
> 73 es GL Pete M0FMT IO91UX
>
>
> --- On Sun, 29/6/14, Graham <[email protected]>
> wrote:
>
> > From: Graham <[email protected]>
> > Subject: Re: LF: Fw: : Re: [rsgb_lf_group] Re::
> 100KHz-1.7GHz full band UV
> > HF RTL-SDR USB Tuner Receiver: How to get HF to work?
> > To: [email protected]
> > Date: Sunday, 29 June, 2014, 12:23
> >
> >
> >
> >
> >
> > Thanks Mal,
> >
> > Tom , wired them direct last night
> > .... interesting
> > angle , seems they have dropped half
> > of a
> > normal dongle into a docking
> > board , The
> > issue I was interested in was the Ae
> > feed
> > for low bands , and from the image ,
> > its visible ,
> > that the feed is single ended , via the
> > toroid ., he
> > also plotted the gain , which falls
> > off to
> > LF , which is similar to the device
> > being
> > Cap coupled , both are single ended
> > methods ...
> > 100KHz is listed as the lower
> > operating
> > frequency , in this case its possible
> > the transformer
> > is the reason ......
> >
> > I think a small pre-amp [ 10 dB
> > ?] with
> > gain roll off to HF would be a
> > better
> > option , as the chip works in
> > a direct
> > coupled set up , down to audio , a pre
> > amp could
> > also provide the ~~ 200
> > ohms input match as well
> >
> >
> > But for round £10/15 supplied
> > as-seen not
> > a bad option
> >
> > 73-G,
> >
> >
> >
> >
> > From: mal hamilton
> >
> > Sent: Sunday, June 29, 2014 8:31 AM
> > To: rsgb
> >
> > Subject: LF: Fw: : Re: [rsgb_lf_group] Re::
> > 100KHz-1.7GHz full band
> > UV HF RTL-SDR USB Tuner Receiver: How to get HF to
> > work?
> >
> >
> >
> > ----- Original Message -----
> > From: DK1IS [email protected]
> > [rsgb_lf_group]
> > To: [email protected]
> >
> >
> > Sent: Saturday, June 28, 2014 12:09 PM
> > Subject: Re: : Re: [rsgb_lf_group] Re::
> > 100KHz-1.7GHz full band UV
> > HF RTL-SDR USB Tuner Receiver: How to get HF to
> > work?
> >
> >
> >
> >
> >
> >
> >
> > Hello Graham,
> >
> > Please see
> > below!
> >
> > 73,
> > Tom,DK1IS
> >
> > Am 27.06.2014 22:52, schrieb [email protected]
> > [rsgb_lf_group]:
> >
> >
> >
> > Tom,
> >
> >
> > At least its running !
> > Yes it
> > is and not so bad!
> >
> >
> >
> >
> >
> >
> >
> >
> > '' only the
> > q-input
> > works''This
> > only means
> > that if you click the ExtIO button at the HDSR user
> > interface "RTL Setting"
> > offers to you at Direct Sampling "Disabled" (for
> > VHF/UHF), "I input" (no
> > stations at HF, only noise) and "Q Input"
> > (stations at HF).
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Do I
> > assume,
> > that they are using a single
> > ended feed
> > for the low band
> > ?Having no
> > datasheet for the
> > RTL2832U I´m not sure about this. As you can see on
> the
> > picture enclosed at the
> > lower side of the pcb there is a small ferrite toroid
> for
> > the HF signal with two
> > output wires, first being fixed with silicone on the
> > RTL2832U housing and then
> > going to two adjacent pins of the IC - whatever this
> means.
> >
> >
> >
> >
> >
> >
> >
> >
> > Is there
> > some form of pre-amp / pass
> > band
> > filter before the input
> > ?There
> > is no pre-amp but you
> > can see a two stage low pass filter on th left side of
> the
> > ferrite toroid (two
> > coils and 6 capacitors)
> >
> >
> >
> >
> >
> >
> >
> >
> > 73-G,
> >
> >
> >
> > __._,_.___
> >
> >
> >
> > Posted by: DK1IS <[email protected]>
> >
> >
> >
> >
> >
> >
> > Reply
> >
> > via web post
> > •
> > Reply
> >
> > to sender
> > •
> > Reply
> >
> > to group
> > •
> > Start
> >
> > a new topic
> > •
> > Messages
> >
> > in this topic (5)
> > Visit
> >
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> >
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> >
> > Members 2
> >
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> > • Privacy
> > •
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> >
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> >
> > .
> >
> > __,_._,___
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