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phasing units, then and now  View Printable Version 
Monday, July 09 2018

IRCA
Guy:


I've ben told the AFEDRI native software and HDSDR both support phasing. I have two problems with the AFEDRI: (1) it only records 600 kHz spans, and (2) phasing can only be done live. There's no way I know of to do phasing on recorded files. This is a shortcomimng that no one has solved for any SDR, as best I know.

Chuck

 

RFC - NCC-1 or NCC-2  View Printable Version 
Monday, July 09 2018

IRCA
I walked the spacing off today, it looks like roughly 175â from SAL to SAL center.

One of these will be a SAL-35, the second a SAL-30. I have more spacing options for a SAL-20 as the second SAL, up to a 400â.

> On Jul 7, 2018, at 9:30 PM, Neil Kazaross <neilkaz58@gmail.com> wrote:
>
> By all means phase two SAL's or similar if you have room. How far apart can
> you place them? 73 KAZ
>
>> On Sat, Jul 7, 2018 at 6:22 PM, Brandon Jordan <dxww.irca@gmail.com> wrote:
>>
>> Hi Colin. I missed this post somehow but, since seeing it, thought I
>> should respond. I own both the NCC-1 and NCC-2. I actually thought I sold
>> the NCC-1 last year on eBay but obviously did not as I just found it boxed
>> up in my radio room closet.
>>
>> I have way more experience with the NCC-1, mainly phasing dual DXE active
>> whips. I bought the NCC-2 from a ham who couldnât figure out how to use it,
>> but unfortunately since I put it online after a few months of being boxed,
>> I donât have any output out of antenna 2 so it is going to DXE for repair.
>> Long story short, no experience with the NCC-2 besides a few days of
>> testing when it first arrived. The NCC-1 worked great on two DXE active
>> whips spaced 100â apart.
>>
>> I have been so enamored with the Shared Apex Loop that regular phasers
>> have been a bit on the back-burner and why I am now very interested in your
>> new model. In speaking with the SAL guru Mark Bauman about dimensions on a
>> SAL-35, he mentioned phasing two SALâs could be very interesting and since
>> I happen to have two SAL units I am planning on experimenting with that. I
>> have the post holes dug, the 35â masts aluminum masts built and etc ready
>> to go but donât see me getting those up until it cools off some here in TN.
>>
>> 73,
>> Brandon
>>
>>>
>

 

RFC - NCC-1 or NCC-2  View Printable Version 
Monday, July 09 2018

IRCA
175' is a bit close for a side by side (Broadside) array, but a bit far for
an end to end (Endfire array) for BCB, but certainly this should still
provide pattern improvements. 73 KAZ

On Mon, Jul 9, 2018 at 1:49 PM, Brandon Jordan <dxww.irca@gmail.com> wrote:

> I walked the spacing off today, it looks like roughly 175â from SAL to SAL
> center.
>
> One of these will be a SAL-35, the second a SAL-30. I have more spacing
> options for a SAL-20 as the second SAL, up to a 400â.
>
> > On Jul 7, 2018, at 9:30 PM, Neil Kazaross <neilkaz58@gmail.com> wrote:
> >
> > By all means phase two SAL's or similar if you have room. How far apart
> can
> > you place them? 73 KAZ
> >
> >> On Sat, Jul 7, 2018 at 6:22 PM, Brandon Jordan <dxww.irca@gmail.com>
> wrote:
> >>
> >> Hi Colin. I missed this post somehow but, since seeing it, thought I
> >> should respond. I own both the NCC-1 and NCC-2. I actually thought I
> sold
> >> the NCC-1 last year on eBay but obviously did not as I just found it
> boxed
> >> up in my radio room closet.
> >>
> >> I have way more experience with the NCC-1, mainly phasing dual DXE
> active
> >> whips. I bought the NCC-2 from a ham who couldnât figure out how to use
> it,
> >> but unfortunately since I put it online after a few months of being
> boxed,
> >> I donât have any output out of antenna 2 so it is going to DXE for
> repair.
> >> Long story short, no experience with the NCC-2 besides a few days of
> >> testing when it first arrived. The NCC-1 worked great on two DXE active
> >> whips spaced 100â apart.
> >>
> >> I have been so enamored with the Shared Apex Loop that regular phasers
> >> have been a bit on the back-burner and why I am now very interested in
> your
> >> new model. In speaking with the SAL guru Mark Bauman about dimensions
> on a
> >> SAL-35, he mentioned phasing two SALâs could be very interesting and
> since
> >> I happen to have two SAL units I am planning on experimenting with
> that. I
> >> have the post holes dug, the 35â masts aluminum masts built and etc
> ready
> >> to go but donât see me getting those up until it cools off some here in
> TN.
> >>
> >> 73,
> >> Brandon
> >>
> >>>
> >
> _______________________________________________
> IRCA mailing list
> IRCA@hard-core-dx.com
> http://montreal.kotalampi.com/mailman/listinfo/irca
>
> Opinions expressed in messages on this mailing list are those of the
> original contributors and do not necessarily reflect the opinion of the
> IRCA, its editors, publishing staff, or officers
>
> For more information: http://www.ircaonline.org
>
> To Post a message: irca@hard-core-dx.com
>
>

 

phasing units, then and now  View Printable Version 
Monday, July 09 2018

IRCA
Hi Mark,

That was an excellent overview of DX hobbyist use of phasers! You covered
the early history which I wasn't aware of, as I was mostly DXing on the
tropical bands when Gordon Nelson and others did their pioneering work.

There is one more phase (LoL) developing now--software based methods using
coherent dual tuners (or channels).â I'm sure you're aware of Afedri's AFE822x
SDR-Net device
<http://www.afedri-sdr.com/index.php/new-afe822x-sdr-net-dual-channel>. It
was introduced a couple of years ago, but unfortunately software has not
appeared to easily take advantage of phasing. If you jump through a lot of
hoops and complexities with LINRAD, you can catch a glimpse of the future
of software phasing, but it's nothing practical for a DXer's use in my
opinion.

Much more recently, SDRplay's RSPduo <https://www.sdrplay.com/rspduo/> was
introduced with its dual tuners. I have one myself, mainly for its future
possibilities. I'm hoping that the 14-bit structure and additional front
end filters will provide better basic performance than earlier RSP models
I've owned.I expect it to be neck-and-neck with the AirSpy HF+ SDRs in a
quiet DXpedition setting...maybe not so much in my suburban RF jungle.

SDRplay looks to be the most active of all the SDR software developers, and
they say they fully intend to offer phasing features in a future release of
SDRuno software. Their activity, enthusiasm, and customer support make me
think they are the group most likely to take software phasing out of the
laboratory and into the DXer's shack. If he has the time and inclination,
Simon Brown of SDR-Console software could implement RSPduo phasing too, but
he's *not* dropped any hints about this.

73,

Guy Atkins
Puyallup, WA

 

phasing units, then and now  View Printable Version 
Monday, July 09 2018

IRCA
The ANAN Sdr series has phasing capability with control built into the
graphical interface.

Don
VE6JY

On Mon, Jul 9, 2018 at 7:06 PM Les Rayburn <les@highnoonfilm.com> wrote:

> Guy,
>
> I own an SDRPlay RSP-1 Pro and an RSP-2 Pro, still waiting to install them
> and experiment with SDRUno. My plan was to be set up to record the entire
> FM band on I/Q output for this season, but that hasnât happened yet.
>
> Iâm also eying the SDRDuo for the phasing possibilities. This is
> intriguing for both AM and FM DXing and I hope they implement this option
> in the software soon. Also hopeful that Simon will implement this option in
> SDR-Console at some point in the future. How that guy keeps up is beyond
> me!
>
>
>
>
> 73,
>
> Les Rayburn, N1LF
> 121 Mayfair Park
> Maylene, AL 35114
> EM63nf
>
> Member WTFDA, IRCA, NRC. Former CPC Chairman for NRC & IRCA.
>
> Elad FDM-S2 SDR, AirSpy SDR2, SDRPlay RSP-2 Pro, Sony XDR-F1HD, Dennon
> TU-1500RD, Sangean HDT-1, Ray Dees RDS Decoders,
> Korner 9.2 Antenna, FM-6 Antenna, Quantum Phaser, Wellbrook ALA1530 Loop,
> Wellbrook Flag, Clifton Labs Active Whip.
>
> âNothing but blues and Elvis, and somebody elseâs favorite songââ
>
>
> > On Jul 9, 2018, at 1:59 PM, Guy Atkins <dx@guyatkins.com> wrote:
> >
> > Hi Mark,
> >
> > That was an excellent overview of DX hobbyist use of phasers! You covered
> > the early history which I wasn't aware of, as I was mostly DXing on the
> > tropical bands when Gordon Nelson and others did their pioneering work.
> >
> > There is one more phase (LoL) developing now--software based methods
> using
> > coherent dual tuners (or channels).â I'm sure you're aware of Afedri's
> AFE822x
> > SDR-Net device
> > <http://www.afedri-sdr.com/index.php/new-afe822x-sdr-net-dual-channel>.
> It
> > was introduced a couple of years ago, but unfortunately software has not
> > appeared to easily take advantage of phasing. If you jump through a lot
> of
> > hoops and complexities with LINRAD, you can catch a glimpse of the future
> > of software phasing, but it's nothing practical for a DXer's use in my
> > opinion.
> >
> > Much more recently, SDRplay's RSPduo <https://www.sdrplay.com/rspduo/>
> was
> > introduced with its dual tuners. I have one myself, mainly for its future
> > possibilities. I'm hoping that the 14-bit structure and additional front
> > end filters will provide better basic performance than earlier RSP models
> > I've owned.I expect it to be neck-and-neck with the AirSpy HF+ SDRs in a
> > quiet DXpedition setting...maybe not so much in my suburban RF jungle.
> >
> > SDRplay looks to be the most active of all the SDR software developers,
> and
> > they say they fully intend to offer phasing features in a future release
> of
> > SDRuno software. Their activity, enthusiasm, and customer support make me
> > think they are the group most likely to take software phasing out of the
> > laboratory and into the DXer's shack. If he has the time and inclination,
> > Simon Brown of SDR-Console software could implement RSPduo phasing too,
> but
> > he's *not* dropped any hints about this.
> >
> > 73,
> >
> > Guy Atkins
> > Puyallup, WA
> > _______________________________________________
> > IRCA mailing list
> > IRCA@hard-core-dx.com
> > http://montreal.kotalampi.com/mailman/listinfo/irca
> >
> > Opinions expressed in messages on this mailing list are those of the
> original contributors and do not necessarily reflect the opinion of the
> IRCA, its editors, publishing staff, or officers
> >
> > For more information: http://www.ircaonline.org
> >
> > To Post a message: irca@hard-core-dx.com
> >
>
> _______________________________________________
> IRCA mailing list
> IRCA@hard-core-dx.com
> http://montreal.kotalampi.com/mailman/listinfo/irca
>
> Opinions expressed in messages on this mailing list are those of the
> original contributors and do not necessarily reflect the opinion of the
> IRCA, its editors, publishing staff, or officers
>
> For more information: http://www.ircaonline.org
>
> To Post a message: irca@hard-core-dx.com
>
>

 

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