Hello Joe not specifically no , I'll terminate the antenna socket on the
ANAN with a load and report back. I have contest tonight so it will be
tomorrow. I'm pretty sure that it is graphics related. The VU meters on
VMB are rapidly updating and I do not see this problem with that. Also
no problem with the wide graph even when I set it for fast updates.
Seems that I have an unlucky combination of hardware.
Regards
Conrad PA5Y
On 03/04/2018 15:46, Joe Taylor wrote:
Hi Conrad,
Strange problem.
I have heard examples of "zipper noise" correlated with rapid changes
of what's displayed on the monitor -- for example, an update of a
what's displayed by a browser. The noise comes from an
upward-sweeping RF signal picked up by the receiver -- in my case,
tuned to some frequency in the HF range. I concluded that RF is
getting out of the video system and into the Rx front end. I have not
seen any such example correlated with things being displayed by
WSJT-X, but that's not to say this is impossible.
Have you checked to see whether your "zipper noise" is arriving
through the Rx antenna port?
-- 73, Joe, K1JT
On 4/2/2018 3:22 PM, Conrad PA5Y wrote:
Hello all this is my first post here, sorry that it is reporting a
small problem.
First configuration info.
Windows 10 Professional 64 bit
Intel Core i5-4750 @ 3.2 GHz
Intel HD graphics 4600
8 GB ram
SSD
WSJT 1.8.0
Radio ANAN-100D
CAT control functional, audio input without problems - there are no
overuns or underuns in the TX and RX audio as reported by the
adaptive variable resampler present in PowerSDR mRX PS V3.4.9.
Input and output for WSJT-X is using voice meter banana (VMB), sample
rate is 48000Hz and I am using ASIO drivers.
When I start monitoring modes that use the fast graph I hear 'zipper
noise' pulses on the monitored receive audio at the same rate as the
data is drawn on the graph. I do not get continuous data drawn but
what appears to be 1 second chunks drawn in the fast graph window.
With each write to the graph I get low level audio disturbances that
appear to be synchronised with these pulses. This occurs whenever
monitor is active and even if the fast graph window is closed.
However if I have VMB as well WSJT-X open in the same window then
there is no problem, until WSJT-X has the focus and is active. I only
use a single monitor on the PC to reduce radiated noise so I switch
task views depending on what I am doing. So I have a work around but
I would like to know what is going on and if anyone can suggest a
remedy.
I have a feeling that it has something to do with my graphics card.
Can anyone recreate this or offer any suggestions about what I can do?
Regards
Conrad PA5Y
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On 03/04/2018 15:46, Joe Taylor wrote:
Hi Conrad,
Strange problem.
I have heard examples of "zipper noise" correlated with rapid changes
of what's displayed on the monitor -- for example, an update of a
what's displayed by a browser. The noise comes from an
upward-sweeping RF signal picked up by the receiver -- in my case,
tuned to some frequency in the HF range. I concluded that RF is
getting out of the video system and into the Rx front end. I have not
seen any such example correlated with things being displayed by
WSJT-X, but that's not to say this is impossible.
Have you checked to see whether your "zipper noise" is arriving
through the Rx antenna port?
-- 73, Joe, K1JT
On 4/2/2018 3:22 PM, Conrad PA5Y wrote:
Hello all this is my first post here, sorry that it is reporting a
small problem.
First configuration info.
Windows 10 Professional 64 bit
Intel Core i5-4750 @ 3.2 GHz
Intel HD graphics 4600
8 GB ram
SSD
WSJT 1.8.0
Radio ANAN-100D
CAT control functional, audio input without problems - there are no
overuns or underuns in the TX and RX audio as reported by the
adaptive variable resampler present in PowerSDR mRX PS V3.4.9.
Input and output for WSJT-X is using voice meter banana (VMB), sample
rate is 48000Hz and I am using ASIO drivers.
When I start monitoring modes that use the fast graph I hear 'zipper
noise' pulses on the monitored receive audio at the same rate as the
data is drawn on the graph. I do not get continuous data drawn but
what appears to be 1 second chunks drawn in the fast graph window.
With each write to the graph I get low level audio disturbances that
appear to be synchronised with these pulses. This occurs whenever
monitor is active and even if the fast graph window is closed.
However if I have VMB as well WSJT-X open in the same window then
there is no problem, until WSJT-X has the focus and is active. I only
use a single monitor on the PC to reduce radiated noise so I switch
task views depending on what I am doing. So I have a work around but
I would like to know what is going on and if anyone can suggest a
remedy.
I have a feeling that it has something to do with my graphics card.
Can anyone recreate this or offer any suggestions about what I can do?
Regards
Conrad PA5Y
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engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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