Yes "loud". I can hear it on ssb like a normal carrier. It is possible
to eliminate it by ANF. Perhaps its no spur?
It sits on exactly -4 kHz and appears when changing band, changing
preamp setting or releasing ptt.
If IF is in between 0 to 4 kHz you can hear it with tone high depending
on IF setting.
Its present on all bands.
73, martin dl1fux
Am 12.07.2010 16:44, schrieb Tim Ellison:
Loud? What mode are you operating?
-Tim
-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Monday, July 12, 2010 10:39 AM
To: Tim Ellison
Cc: [email protected]
Subject: Re: [FlexEdge] Flex-1500 spur
Its still the same with asio4all.
Spur very loud at -4 kHz.
73, martin dl1fux
Am 12.07.2010 16:22, schrieb Tim Ellison:
Try ASIO4ALL for XP too and see if there is a difference. MME has a lot of
latency.
-Tim
-----
W4TME
-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Monday, July 12, 2010 10:19 AM
To: Tim Ellison
Cc: [email protected]
Subject: Re: [FlexEdge] Flex-1500 spur
Hi Tim,
for Vista32 I used ASIO4ALL and now for XP its MME as in the moment I do
not do any cw.
73, martin dl1fux
Am 12.07.2010 15:58, schrieb Tim Ellison:
It is the 0 Hz IF of the DDS.
What audio drivers are you using for each operating system with the FLEX-1500?
-Tim
-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of DL1FUX
Sent: Monday, July 12, 2010 9:55 AM
To: [email protected]
Subject: Re: [FlexEdge] Flex-1500 spur
Ups,
I changed my OS from Vista32 to XP Prof. and now I do have this spur, too.
Direct after release of ptt or changing preamp settings it goes up about
20 - 30 dB above noise level and falls down within 3 seconds.
Changing IF to 0 Hz puts it direct on the red line. SR does eliminate it
totally.
I did not notice it unter Vista.
73, martin dl1fux
Am 12.07.2010 14:56, schrieb Tim Ellison:
That is probably the DDS "0 IF noise".
-Tim
-----
W4TME
-----Original Message-----
From: [email protected] [mailto:[email protected]]
On Behalf Of David McKenzie
Sent: Sunday, July 11, 2010 11:50 PM
To: flexedge
Subject: [FlexEdge] Flex-1500 spur
Hi,
On my Flex-1500, I have a spur at about -3500 at all times. Changing the
preamp setting makes it stronger/weaker for a short amount of time when
switching from 0 to +30 to 0, then settles back down. Anyone else see this?
Seems most noticeable on quiet bands, at around -120. Doesn't appear to be
anything in the shack.
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using alpha and beta versions of the software.
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This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for
posting topics related to SDR software development and experimentalist who are
using alpha and beta versions of the software.
_______________________________________________
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http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz
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posting topics related to SDR software development and experimentalist who are
using alpha and beta versions of the software.
