开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. QRPLabs
  2. Topics

QDX - I/Q mode and SSB firmware

 

hey group
?
first of all: I am eagerly watching my ordered QDX running up the waitlist, so I have no device in hands right now.
still I thought I get perpared and read the docs and some topics here. and there came up some questions:
?
*) when setting the QDX into I/Q mode, I would use my sdr-software to decode/demodulate.
??? How wide is the spectrum I would get?
? the documentation does NOT exclude the sending option. so could I transmit providing I/Q to the soundcard?
*) will there be a new firmware with SSB transmit option?
73 de OE6PLD, Peter
 

Hello Peter
?
first of all: I am eagerly watching my ordered QDX running up the waitlist, so I have no device in hands right now.
still I thought I get perpared and read the docs and some topics here. and there came up some questions:
?
*) when setting the QDX into I/Q mode, I would use my sdr-software to decode/demodulate.
??? How wide is the spectrum I would get?

Sampling is at 48ksps
?
? the documentation does NOT exclude the sending option. so could I transmit providing I/Q to the soundcard?

Not right now. In future it could be a functionality enhancement.?
?
*) will there be a new firmware with SSB transmit option?

Yes, I'm working on it.?

73 Hans G0UPL
 

On 15/01/2025 05:31, Hans Summers via groups.io wrote:
*) will there be a new firmware with SSB transmit option?
Yes, I'm working on it.

Hans,

The subject is QDX.

SSB seems unlikely or is it really a QMX?

73 Alan G4ZFQ
 

Hi Alan
?
>? ? ?*) will there be a new firmware with SSB transmit option?
>
>
> Yes, I'm working on it.


Hans,

The subject is QDX.

SSB seems unlikely or is it really a QMX?

Thank you very much, yes, well-spotted. I am confusing myself (and others). My apologies. QDX doesn't (and won't) support both I Q mode transmit, and SSB. That applies to QMX.?

73 Hans G0UPL
 

Thank you all for the provided information!

the little baby is awaited here and has its place already prepared ;)

73
peter
--
Disclaimer: May be opened and read by the NSA, CIA, GCHQ, KGB, BND, and whoever else it may NOT concern.


Am Mi., 15. Jan. 2025 um 10:09?Uhr schrieb Hans Summers via <hans.summers=[email protected]>:

Hi Alan
?
>? ? ?*) will there be a new firmware with SSB transmit option?
>
>
> Yes, I'm working on it.


Hans,

The subject is QDX.

SSB seems unlikely or is it really a QMX?

Thank you very much, yes, well-spotted. I am confusing myself (and others). My apologies. QDX doesn't (and won't) support both I Q mode transmit, and SSB. That applies to QMX.?

73 Hans G0UPL
 

Hello,
?
Reacting to:
*) when setting the QDX into I/Q mode, I would use my sdr-software to decode/demodulate.
??? How wide is the spectrum I would get?
?
Sampling is at 48ksps
?
I'm interested in purchasing QMX+ kit. Is there any ready made software, that is recommended to (try to) listen to SSB transmissions using built in sound card?
So I'm getting clean base band with around 24kHz bandwidth using the soundcard right? Or is there any problem that I would encounter while trying to demodulate voice SSB transmissions there?
73 de?OM5EAX
 

On 23/02/2025 14:07, OM5EAX via groups.io wrote:
s there any ready made software, that is recommended to (try to) listen to SSB transmissions using built in sound card?
I use HDSDR.
I think SDR Console still has soundcard input.
I'm not sure what else retains this older soundcard SDR feature.

You get a maximum of 48KHz span.
Any mode with a requirement of less than 48KHz bandwidth may be used.

73 Alan G4ZFQ
 

There are no issues in listening to SSB.? You can hear USB directly on the QDX audio output, or SSB via IQ mode using any SDR software (all of them that I am aware of support SSB).

1 - 8 of 8