Re: [IRCA] WC Nov 5 snapshot - SDR shoot-out

[Mark Pettifor <mark@xxxxxxxxxxxxxx>]

I forgot to note that those recording rates are for using the ELAD at a 
bandwidth of 1536 KHz, which covers the AM band. If I went up to the 
full 6144 MHz bandwidth possible, it would use up 4X the disk space in 
the same amount of time.

Mark

On 2016-11-06 10:48 am, Mark Pettifor wrote:
> Another thing to consider, which you've heard myself and others talk
> about, is disk space needed if you make recordings.
>
> I use mainly 3 different softwares for listening / recording: SDR
> Console, HDSDR, and the software that came with the ELAD, FDM-SW2.
> Each one has it's pros and cons, and lately I've been using SDR
> Console for the nice recording GUI.
>
> I've noticed that these 3 consume disk space at different rates when
> recording. Here's what I've measured:
>
> HDSDR:  41.3 GB/hr
> FDM-SW2:  30.7 GB/hr
> SDR Console:  22.1 GB/hr
>
> I don't think there's any way to change this, but if someone knows
> otherwise, I'd love to hear about it!
>
> So it looks like the recording winner would be SDR Console, right?
> Well, it depends. Do you want to be able to open your recordings in
> other software? Here's another chart I made up just yesterday:
>
> Recording with HDSDR:
> Playback in FDM-SW2 = No
> Playback in SDR Console = Yes, if recording file is <2GB
>
> Recording with FDM-SW2:
> Playback in HDSDR = Yes
> Playback in SDR Console = Yes
>
> Recording with SDR Console:
> Playback in HDSDR = Not really - it plays, but the display is all
> messed up, so you can't tell what freq you are on
> Playback in FDM-SW2 = No
>
> Not sure how the Perseus fits in that scheme. I think Perseus files
> play in lots of other software, but others here can weigh in on that
> if they want.
>
> Final note about recording with SDR Console - the developer has spent
> a lot of time getting the software to work with just about every SDR
> radio out there (which is great!), but the recordings made with it
> won't play on anything but SDR Console (to my knowledge anyway).
>
> Regarding sound quality, I've seen some great video clips of some
> pretty awesome DX on the Perseus, and I can get pretty close to the
> same quality on my ELAD. In the end, I think it's a combination of the
> hardware and the software, but the software is where you can really
> make the higher-end units (where it's apples to apples) shine. There's
> a software that the ELAD can use called Zeus Radio, written for the
> ZS-1 SDR radio. It has the best sound quality of anything I've used,
> but the developer has other projects going and it's starting to look
> like a stagnant project. The software isn't free anymore (it used to
> be).
>
> OK, Ive rambled long enough...
>
> Mark
> Goshen, IN
>
> On 2016-11-06 9:56 am, Keith wrote:
> > My point was that for recording (capturing) large amounts of bandwidth
> > for FM you need something more powerful.  When I ran the Perseus on a
> > netbook it worked fine for MW captures (up to the max) but suffered
> > badly when trying to make FM captures.
> >
> > Keith
> >
> > On 11/6/2016 8:24 AM, Mark4@xxxxxxxxxxxxxxx wrote:
> > > I'm with you on this one Chuck.  I've been running Perseus for years
> > > with old garden-variety dual-core machines with nary a hiccup.
> > >
> > > Mark Durenberger
> > >
> > > -----Original Message----- From: Chuck Hutton
> > > Sent: Saturday, November 05, 2016 10:09 PM
> > > To: Mailing list for the International Radio Club of America
> > > Subject: Re: [IRCA] WC Nov 5 snapshot - SDR shoot-out
> > >
> > > Yet my cheapo ($60) Atom Z3735F tablets run Perseus SW with no 
> > > problems.
> > >
> > > Chuck
> > > ________________________________
> > > From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Keith
> > > <longwave@xxxxxxxxxxx>
> > > Sent: Saturday, November 5, 2016 7:57 PM
> > > To: Mailing list for the International Radio Club of America
> > > Subject: Re: [IRCA] WC Nov 5 snapshot - SDR shoot-out
> > >
> > > http://shop.elad-usa.com/sdr-radio/fdm-s2/
> > > [http://shop.elad-usa.com/images/products/fdm-s2.jpg]<http://shop.elad-usa.com/sdr-radio/fdm-s2/>
> > >
> > >
> > > Elad FDM-S2<http://shop.elad-usa.com/sdr-radio/fdm-s2/>
> > > shop.elad-usa.com
> > > FDM-S2 is the second device born in our line ELAD SDR Samplers. 
> > > Direct
> > > sampling receiver based on 122.88MHz 16bit single channel ADC 
> > > converter
> > > covering HF 6m and ...
> > >
> > >
> > >
> > >
> > > I found that you need to have a quad core running at least 2.5 ghz or 
> > > so
> > > to avoid any stuttering issues at full bandwidth of 2 mhz for MW.   
> > > Each
> > > setup has it's own issues (I had mine early on with both the Perseus 
> > > and
> > > ELAD) and it takes time and patience.  But that being said I'll never 
> > > go
> > > back to desktop receiver like the Drake.  In fact I'll be putting my
> > > Drake R8A, Grundig Sat 800 and a couple of others up on EBAY soon.  I
> > > will keep my Eton E1 which comes very very close to the Drake in
> > > performance.
> > >
> > > I did use a Lenovo Ideapad (can't tell you which model right 
> > > now...gave
> > > it to my son earlier this year) but now I use an MSI G72 gaming 
> > > laptop
> > > (this was a little more money LOL..around $1100).  It has a high end 
> > > i7
> > > quad core processor running Win 10.  I upgraded mainly due to the 
> > > fact
> > > that in the summer I run the ELAD for FM captures during Eskip 
> > > Openings
> > > (6 mhz capture) and the Airspy SDR (for 8 mhz captures).  Running 
> > > both
> > > at the same and recording (to external drives) has been pretty 
> > > flawless.
> > >
> > > Keith
> > >
> > >
> > >
> > > On 11/5/2016 10:40 PM, R. Colin Newell wrote:
> > > > On the Elad Store I was sure it was around 500EU or more... Will 
> > > > look
> > > > again.
> > > >
> > > > Don't get me wrong - open to new things - the ELAD sample I'm using
> > > > just doesn't compete with the R8 or the 7030+. Maybe they are just 
> > > > hot
> > > > examples of 2 great receivers.
> > > >
> > > > Products I'm using the Elad with:
> > > > QuadCore Lenovo T250, Toshiba netbook (chatters when anything other
> > > > than the Elad is running...) and a Dell AIO 7440 (worth $1400)
> > > >
> > > > Colin Newell - CoffeeCrew.com - VA7WWV - Victoria - BC
> > > >
> > > > > On Nov 5, 2016, at 7:25 PM, Keith <longwave@xxxxxxxxxxx> wrote:
> > > > >
> > > > > Ok...Love my ELAD.  Live in a very RF rich area (just south of 
> > > > > Boston
> > > > > MA).  Had a Drake R8A and loved it.  Got the Perseus and it beat 
> > > > > the
> > > > > R8A by a decent margin imho.  Then I bought the ELAD mainly for its
> > > > > wide band FM capture capability.  Found that in most cases it's the
> > > > > equal to or better than the Perseus especially in audio quality 
> > > > > which
> > > > > I find to be much softer on these aging ears than the Perseus.  The
> > > > > one area I'd give the Perseus a big plus on was NDB dxng.
> > > > >
> > > > > Also if you are only dxng MW (or NDB's and SW) and not FM then a
> > > > > middle of the road laptop will suffice.  I purchased a refurb 
> > > > > Lenovo
> > > > > quad core a few years back for about $350 and it worked fine for
> > > > > everything and wasn't too bad at handling the load for FM captures.
> > > > > Also the ELAD is $519.00 USD ($695 Canadian) and not $1000.  A lot
> > > > > less than the Perseus. The great part about the ELAD if you are an 
> > > > > FM
> > > > > dxer is that no external downcoverter is needed (like you need for
> > > > > the Perseus) so no additional cost.
> > > > >
> > > > > Keith McGinnis
> > > > > Hingham MA
> > > > > ELAD SDR with 50x100 switched termination superloop running NE/SW 
> > > > > and
> > > > > a Wellbrook 1530LNP Imperium along with a DX Engineering NCC1 
> > > > > Phaser
> > > > > for LW, MW and SW.          2 Innov 11 element antennas with Bolin
> > > > > Phase Box for FM
> > > > >
> > > > > > On 11/5/2016 9:19 PM, R. Colin Newell wrote:
> > > > > > There is a noticeable difference with audio quality between 
> > > > > > Laptops
> > > > > > and work stations.
> > > > > >
> > > > > > Consider this: $1000 Elad + $1000 laptop gives you a decent set 
> > > > > > up...
> > > > > > But a 2nd hand Drake at $700 mops the floor with the Elad. Do the 
> > > > > > math.
> > > > > > I know SDR's are the future but the Elad or Perseus are paper
> > > > > > weights without a solid PC desktop or laptop.
> > > > > >
> > > > > > If you run the Elad with the ATT off, there is "ADC" clipping,
> > > > > > whatever that is -- and I'm in a low signal area. The only choice 
> > > > > > is
> > > > > > clicking ATT ON. But no mention anywhere I could find what the
> > > > > > attenuation is.
> > > > > >
> > > > > > No passband tuning with the Elad and without a high quality wheel
> > > > > > mouse or gaming mouse, actually operating the Elad is a two handed
> > > > > > operation.
> > > > > >
> > > > > > Still going to keep the comparison going. Gotta know.
> > > > > >
> > > > > > Colin Newell - CoffeeCrew.com - VA7WWV - Victoria - BC
> > > > > >
> > > > > > > On Nov 5, 2016, at 4:13 PM, Walter Salmaniw <canswl@xxxxxxxxx> 
> > > > > > > wrote:
> > > > > > >
> > > > > > > I can't comment on the Elad, but the Perseus is superb.  Every 
> > > > > > > bit
> > > > > > > as good
> > > > > > > as any of the best classic receivers mentioned.  There is a real
> > > > > > > learning
> > > > > > > curve, though, to use them optimally.  Audio is perfect, but very 
> > > > > > > much
> > > > > > > dependent on your sound card.  My high end Dell produces 
> > > > > > > wonderful
> > > > > > > audio..
> > > > > > > I have been told that the Elad should be as good as the Perseus.
> > > > > > > Wonder
> > > > > > > what the issue is.  Doesn't sound right to me.   Walt (At the
> > > > > > > Glistening
> > > > > > > Waters, PEI DXpedition, and listening to almost armchair copy of
> > > > > > > Nigeria on
> > > > > > > 917 kHz).
> > > > > > >
> > > > > > > On Sat, Nov 5, 2016 at 9:13 PM, R. Colin Newell
> > > > > > > <coffeecanuck@xxxxxxxxx>
> > > > > > > wrote:
> > > > > > >
> > > > > > > > SDR's are like digital cameras...
> > > > > > > > The closer you look, the less they look like film.
> > > > > > > >
> > > > > > > > Great for spectrum analysis and for portable operation when you 
> > > > > > > > are
> > > > > > > > traveling.
> > > > > > > >
> > > > > > > > Hard to beat the warmth of a well designed receiver.
> > > > > > > >
> > > > > > > > Colin Newell - CoffeeCrew.com - VA7WWV - Victoria - BC
> > > > > > > >
> > > > > > > > > > On Nov 5, 2016, at 12:21 PM, Richard N Allen
> > > > > > > > > > <richarda@xxxxxxxxxxxx>
> > > > > > > > > wrote:
> > > > > > > > >
> > > > > > > > > Colin:
> > > > > > > > >
> > > > > > > > > Thanks for the review.
> > > > > > > > >
> > > > > > > > > I tried a Drake R8 many years ago when it was first released.
> > > > > > > > > It's an
> > > > > > > > outstanding receiver.
> > > > > > > > > I've been pondering a new SDR but think I'll stick with my old
> > > > > > > > WR-G313e.  I'm sitting here now at mid-day hearing "Jack Rabbit"
> > > > > > > > football
> > > > > > > > from WNAX-570, Yankton SD (S7 @ 726 km/451 mi), on the WiNRADiO
> > > > > > > > hooked to a
> > > > > > > > long wire.  It's an easy to use receiver and still works on
> > > > > > > > Windows 10.  It
> > > > > > > > simply need a better aerial and I have an ALA1503LNP-NA on 
> > > > > > > > order.
> > > > > > > > > I also have a R75 which is going back to ICOM soon for repairs. 
> > > > > > > > >   It
> > > > > > > > just quit and I don't know why.
> > > > > > > > > Good DX.
> > > > > > > > >
> > > > > > > > > Richard.
> > > > > > > > >
> > > > > > > > > Sent from my iPad
> > > > > > > > > --
> > > > > > > > > This message has been scanned for viruses and
> > > > > > > > > dangerous content by MailScanner, and is
> > > > > > > > > believed to be clean.
> > > > > > > > >
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