Date   

Re: HF+ Questions

Simon Brown
 

OK,

 

  1. 768kHz from the radio, my software also provides 394, 192, 96 and 48kHz
  2. USB only but of course supported by servers including SpyServer
  3. ADC bits doesn’t really matter – MDS and Dynamic Range are the important numbers

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Tony_AD0VC
Sent: 29 September 2017 03:25
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] HF+ Questions

 

I looked at the Airspy site and read what they had on the HF+. Some info seems to be missing:

 

  1. What sample rates are supported? All I see mentioned is 768Khz
  2. Can it be connected with USB or is it network only?
  3. How many bits in the ADC? All I see mentioned is an 18 bit DDC which is the down converter. How about the actual sampler?

 

Does anybody know?

 

Tony

ad0vc


HF+ Questions

Tony_AD0VC
 

I looked at the Airspy site and read what they had on the HF+. Some info seems to be missing:


  1. What sample rates are supported? All I see mentioned is 768Khz
  2. Can it be connected with USB or is it network only?
  3. How many bits in the ADC? All I see mentioned is an 18 bit DDC which is the down converter. How about the actual sampler?

Does anybody know?

Tony
ad0vc


Re: HF+ Comparison

chutton12000
 

There are differences in windowing techniques. You have a tradeoff between spectral bin leakage, sidelobes and resolution.


This may make no difference if all you are doing is looking at strong signals and don't care about high accuracy. But for more demanding uses like looking at small signals near a strong signal or phase noise of a signal, it can be important.


Chuck




From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Nick Hall-Patch <nhp@...>
Sent: Thursday, September 28, 2017 4:22 PM
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ Comparison
 
OK, didn't know whether "Youssef" windowing was unique to the HF+, especially as I know nothing about it.    I haven't seen big differences using different windowing for the same receiver, but maybe, when there is a moment, same windowing for both SDRs being evaluated?

Again appreciate your work on this.


best wishes,

Nick

 

On Thu, Sep 28, 2017 at 11:09 PM, Simon Brown <simon@...> wrote:

There’s a list of options for Windowing, for some reason I had Youssef selected on the NetSDR.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@....io] On Behalf Of Nick Hall-Patch
Sent: 28 September 2017 23:56
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ Comparison

 

understood...but why is "Youssef" windowing being used for the NetSDR?....that's what comes up when I click on the NetSDR screenshots...

Thanks again.

Nick



Re: HF+ Comparison

Nick Hall-Patch
 

OK, didn't know whether "Youssef" windowing was unique to the HF+, especially as I know nothing about it.    I haven't seen big differences using different windowing for the same receiver, but maybe, when there is a moment, same windowing for both SDRs being evaluated?

Again appreciate your work on this.


best wishes,

Nick

 

On Thu, Sep 28, 2017 at 11:09 PM, Simon Brown <simon@...> wrote:

There’s a list of options for Windowing, for some reason I had Youssef selected on the NetSDR.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@....io] On Behalf Of Nick Hall-Patch
Sent: 28 September 2017 23:56
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ Comparison

 

understood...but why is "Youssef" windowing being used for the NetSDR?....that's what comes up when I click on the NetSDR screenshots...

Thanks again.

Nick



Re: HF+ Comparison

Simon Brown
 

There’s a list of options for Windowing, for some reason I had Youssef selected on the NetSDR.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Nick Hall-Patch
Sent: 28 September 2017 23:56
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ Comparison

 

understood...but why is "Youssef" windowing being used for the NetSDR?....that's what comes up when I click on the NetSDR screenshots...

Thanks again.

Nick


Re: HF+ Comparison

Nick Hall-Patch
 

understood...but why is "Youssef" windowing being used for the NetSDR?....that's what comes up when I click on the NetSDR screenshots...

Thanks again.

Nick


On Thu, Sep 28, 2017 at 10:51 PM, Simon Brown <simon@...> wrote:

Hi,

 

This is the FFT Windowing, see https://en.wikipedia.org/wiki/Window_function Youssef is the brains department at Airspy, he designed his own algorithm. It’s really something for the CW / very narrow signals.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@....io] On Behalf Of Nick Hall-Patch
Sent: 28 September 2017 23:45
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ Comparison

 

Quick question, probably indicating how far I am out of my depth.....but the couple of NetSDR displays I looked at in your link used "Youssef" windowing, which I don't know about.....whereas the HF+ displays used more conventional windowing.

Why "Youssef" windowing for the NetSDR please? 

Thanks.

Nick

 

On Thu, Sep 28, 2017 at 9:44 PM, Simon Brown <simon@...> wrote:

So,

 

Done properly (or at least better) this time: http://sdr-radio.com/AirspyHFPlus

 

Simon Brown, G4ELI
www.sdr-radio.com

 

 



Re: HF+ Comparison

Simon Brown
 

Hi,

 

This is the FFT Windowing, see https://en.wikipedia.org/wiki/Window_function Youssef is the brains department at Airspy, he designed his own algorithm. It’s really something for the CW / very narrow signals.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Nick Hall-Patch
Sent: 28 September 2017 23:45
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ Comparison

 

Quick question, probably indicating how far I am out of my depth.....but the couple of NetSDR displays I looked at in your link used "Youssef" windowing, which I don't know about.....whereas the HF+ displays used more conventional windowing.

Why "Youssef" windowing for the NetSDR please? 

Thanks.

Nick

 

On Thu, Sep 28, 2017 at 9:44 PM, Simon Brown <simon@...> wrote:

So,

 

Done properly (or at least better) this time: http://sdr-radio.com/AirspyHFPlus

 

Simon Brown, G4ELI
www.sdr-radio.com

 

 


Re: HF+ Comparison

Nick Hall-Patch
 

Quick question, probably indicating how far I am out of my depth.....but the couple of NetSDR displays I looked at in your link used "Youssef" windowing, which I don't know about.....whereas the HF+ displays used more conventional windowing.

Why "Youssef" windowing for the NetSDR please? 

Thanks.

Nick


On Thu, Sep 28, 2017 at 9:44 PM, Simon Brown <simon@...> wrote:

So,

 

Done properly (or at least better) this time: http://sdr-radio.com/AirspyHFPlus

 

Simon Brown, G4ELI
www.sdr-radio.com

 



HF+ Comparison

Simon Brown
 

So,

 

Done properly (or at least better) this time: http://sdr-radio.com/AirspyHFPlus

 

Simon Brown, G4ELI
www.sdr-radio.com

 


Re: SDR-Console – v3.0 preview 6, cannot edit "Favorites" data

Simon Brown
 

Hi,

 

In the Favourites bar select Organiser.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of rbuck@...
Sent: 28 September 2017 18:12
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] SDR-Console – v3.0 preview 6, cannot edit "Favorites" data

 

Hi, I can't seem to edit the favorites data in SDR-Console – v3.0 preview 6 . The menu drops down and new frequency data can be entered but it doesn't retain the new values.  Randall, KM6LPW


SDR-Console – v3.0 preview 6, cannot edit "Favorites" data

rbuck@...
 

Hi, I can't seem to edit the favorites data in SDR-Console – v3.0 preview 6 . The menu drops down and new frequency data can be entered but it doesn't retain the new values.  Randall, KM6LPW


Re: HF+ WX Reception

Simon Brown
 

G4LOH lives close to me, maybe he should have a go 😊

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of paul newcombe
Sent: 28 September 2017 18:35
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Well if the HF bands are that bad then am I correct in assuming that you will be testing the Airspy HF+ on 2m EME rather than going to the pub?

 

Paul N2EME

 


From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Simon Brown <simon@...>
Sent: Thursday, September 28, 2017 12:18 PM
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Hah – I do have other things to do 😊 .

 

Bands are crap at the moment, very impressed with VHF.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of carl.physics
Sent: 28 September 2017 17:09
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Simon, How did the "serious" testing go?

Carl

 

On Sep 28, 2017 9:34 AM, "Simon Brown" <simon@...> wrote:

Agreed

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of David Hopkins
Sent: 28 September 2017 13:38
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

While you are at it Simon how about the automatic satellite switching feature.

Would be great for the weather satellites as well for the amateur ones.

David

At 05:56 PM 28/09/2017, you wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).
 
Will get WxToImg working later today.
 
Simon Brown, G4ELI
www.sdr-radio.com
 

[] Virus-free. www.avg.com



Definitely NOT sent from an  iPhone.

David G. Hopkins (VK4ZF)
CAPALABA QLD
AUSTRALIA
27' 32" 23.03S 153' 12' 01.54E
QG62OL
Skype :- davhop

 


Re: HF+ WX Reception

paul newcombe <G6YZC@...>
 

Well if the HF bands are that bad then am I correct in assuming that you will be testing the Airspy HF+ on 2m EME rather than going to the pub?


Paul N2EME




From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Simon Brown <simon@...>
Sent: Thursday, September 28, 2017 12:18 PM
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception
 

Hah – I do have other things to do 😊 .

 

Bands are crap at the moment, very impressed with VHF.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of carl.physics
Sent: 28 September 2017 17:09
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Simon, How did the "serious" testing go?

Carl

 

On Sep 28, 2017 9:34 AM, "Simon Brown" <simon@...> wrote:

Agreed

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of David Hopkins
Sent: 28 September 2017 13:38
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

While you are at it Simon how about the automatic satellite switching feature.

Would be great for the weather satellites as well for the amateur ones.

David

At 05:56 PM 28/09/2017, you wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).
 
Will get WxToImg working later today.
 
Simon Brown, G4ELI
www.sdr-radio.com
 

[] Virus-free. www.avg.com



Definitely NOT sent from an  iPhone.

David G. Hopkins (VK4ZF)
CAPALABA QLD
AUSTRALIA
27' 32" 23.03S 153' 12' 01.54E
QG62OL
Skype :- davhop

 


Re: HF+ WX Reception

carl.physics
 

Simon,
Sorry. I thought you told us you sent the hf+ to someone to do some serious testing and that it would return last tuesday. Not trying to push you. Just very interested.
Carl

On Sep 28, 2017 3:00 AM, "Simon Brown" <simon@...> wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).

 

Will get WxToImg working later today.

 

Simon Brown, G4ELI
www.sdr-radio.com

 


Re: HF+ WX Reception

Michael Serowik
 

Very impressive!!!

 

Mike- N3BSQ

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Simon Brown
Sent: Thursday, September 28, 2017 12:19 PM
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Hah – I do have other things to do 😊 .

 

Bands are crap at the moment, very impressed with VHF.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of carl.physics
Sent: 28 September 2017 17:09
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Simon, How did the "serious" testing go?

Carl

 

On Sep 28, 2017 9:34 AM, "Simon Brown" <simon@...> wrote:

Agreed

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of David Hopkins
Sent: 28 September 2017 13:38
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

While you are at it Simon how about the automatic satellite switching feature.

Would be great for the weather satellites as well for the amateur ones.

David

At 05:56 PM 28/09/2017, you wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).
 
Will get WxToImg working later today.
 
Simon Brown, G4ELI
www.sdr-radio.com
 

[] Virus-free. www.avg.com



Definitely NOT sent from an  iPhone.

David G. Hopkins (VK4ZF)
CAPALABA QLD
AUSTRALIA
27' 32" 23.03S 153' 12' 01.54E
QG62OL
Skype :- davhop

 


Re: HF+ WX Reception

vincent
 

Thanks Simon, that says alot about the new Airspy

Vincent

On Thu, Sep 28, 2017 at 9:00 AM, Simon Brown <simon@...> wrote:

Well,

 

I would say ‘quite possibly’ – I’m sure MDS is better and dynamic range also. I must use the NetSDR’s downconverter to be sure of this. Prior to the HF+ I’ve been using the Airspy R2 which I’m sure is a tad better than the NetSDR+Downconverter.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@....io] On Behalf Of vincent
Sent: 28 September 2017 16:01
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Simon, even better than the NetSDR with down converter?


Vincent

 

On Thu, Sep 28, 2017 at 12:56 AM, Simon Brown <simon@...> wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).

 

Will get WxToImg working later today.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

 



Re: HF+ WX Reception

Simon Brown
 

Hah – I do have other things to do 😊 .

 

Bands are crap at the moment, very impressed with VHF.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of carl.physics
Sent: 28 September 2017 17:09
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Simon, How did the "serious" testing go?

Carl

 

On Sep 28, 2017 9:34 AM, "Simon Brown" <simon@...> wrote:

Agreed

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of David Hopkins
Sent: 28 September 2017 13:38
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

While you are at it Simon how about the automatic satellite switching feature.

Would be great for the weather satellites as well for the amateur ones.

David

At 05:56 PM 28/09/2017, you wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).
 
Will get WxToImg working later today.
 
Simon Brown, G4ELI
www.sdr-radio.com
 

[] Virus-free. www.avg.com



Definitely NOT sent from an  iPhone.

David G. Hopkins (VK4ZF)
CAPALABA QLD
AUSTRALIA
27' 32" 23.03S 153' 12' 01.54E
QG62OL
Skype :- davhop

 


Re: HF+ WX Reception

carl.physics
 

Simon, How did the "serious" testing go?
Carl

On Sep 28, 2017 9:34 AM, "Simon Brown" <simon@...> wrote:

Agreed

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@....io] On Behalf Of David Hopkins
Sent: 28 September 2017 13:38
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

While you are at it Simon how about the automatic satellite switching feature.

Would be great for the weather satellites as well for the amateur ones.

David

At 05:56 PM 28/09/2017, you wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).
 
Will get WxToImg working later today.
 
Simon Brown, G4ELI
www.sdr-radio.com
 

[] Virus-free. www.avg.com



Definitely NOT sent from an  iPhone.

David G. Hopkins (VK4ZF)
CAPALABA QLD
AUSTRALIA
27' 32" 23.03S 153' 12' 01.54E
QG62OL
Skype :- davhop

 


Re: HF+ WX Reception

Simon Brown
 

Well,

 

I would say ‘quite possibly’ – I’m sure MDS is better and dynamic range also. I must use the NetSDR’s downconverter to be sure of this. Prior to the HF+ I’ve been using the Airspy R2 which I’m sure is a tad better than the NetSDR+Downconverter.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of vincent
Sent: 28 September 2017 16:01
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] HF+ WX Reception

 

Simon, even better than the NetSDR with down converter?


Vincent

 

On Thu, Sep 28, 2017 at 12:56 AM, Simon Brown <simon@...> wrote:

Listening to NOAA-15, Airspy HF+ is the best VHF SDR I have ever used (so far).

 

Will get WxToImg working later today.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

 


Re: HF+ WX Reception

Gymnae
 

It's getting colder, reception is getting better, it's getting more and more time for release. Hopefully mass production is ramped up before Christmas that some of the dark days of November can be spent signal hunting. When is it coming already!  Let's smash F5 some more...