Michael Babineau
2017-01-10 18:48:17 UTC
Danno :
One question. Are you using Virtual Audio Cable to link HRD to PowerSDR or are you using a solution involving external cables from the computer to the Flex-3000 for audio?
It is not clear from the description of your setup.
VAC is a much safer solution as it will reduce the chance of RF or noise sneaking into the audio lines and if you go this route you can’t actually use USB/LSB modes
because I don’t think that PowerSDR will show the controls to adjust levels for VAC.
One other reason why you don’t want to use USB/LSB modes is that it will impact HRDs ability to decode digital signals. On the Flex the digital modes are there because
unlike USB/LSB they do minimal processing (i.e. mucking around) on both incoming and outgoing signal. It doesn’t matter if the original bit streams are “corrupted slightly”
for SSB as the intent is to improve intelligibility on both TX and RX … but preserving bit integrity does matter when you are encoding or decoding a digital data stream.
(This topic is covered in the PowerSDR manual).
Cheers
Michael VE3WMB
FlexRadio Systems Mailing List
***@flex-radio.biz
To opt out of the Reflector:
http://mail.flex-radio.biz/mailman/list
One question. Are you using Virtual Audio Cable to link HRD to PowerSDR or are you using a solution involving external cables from the computer to the Flex-3000 for audio?
It is not clear from the description of your setup.
VAC is a much safer solution as it will reduce the chance of RF or noise sneaking into the audio lines and if you go this route you can’t actually use USB/LSB modes
because I don’t think that PowerSDR will show the controls to adjust levels for VAC.
One other reason why you don’t want to use USB/LSB modes is that it will impact HRDs ability to decode digital signals. On the Flex the digital modes are there because
unlike USB/LSB they do minimal processing (i.e. mucking around) on both incoming and outgoing signal. It doesn’t matter if the original bit streams are “corrupted slightly”
for SSB as the intent is to improve intelligibility on both TX and RX … but preserving bit integrity does matter when you are encoding or decoding a digital data stream.
(This topic is covered in the PowerSDR manual).
Cheers
Michael VE3WMB
Message: 1
Date: Mon, 9 Jan 2017 20:38:15 -0500
Subject: [Flexradio] digital signals
Content-Type: text/plain; charset=utf-8
Thanks for the help ... I stopped using USB for digital modes and maxed out the sampling rates...this has improved the sigs
by 98%... still have pop once in a while ..but all is good now .. actually got a QSO with only one transmission :)
tnx agn
73
danno
_______________________________________________Date: Mon, 9 Jan 2017 20:38:15 -0500
Subject: [Flexradio] digital signals
Content-Type: text/plain; charset=utf-8
Thanks for the help ... I stopped using USB for digital modes and maxed out the sampling rates...this has improved the sigs
by 98%... still have pop once in a while ..but all is good now .. actually got a QSO with only one transmission :)
tnx agn
73
danno
FlexRadio Systems Mailing List
***@flex-radio.biz
To opt out of the Reflector:
http://mail.flex-radio.biz/mailman/list