Send USRP-users mailing list submissions to
[email protected]
To subscribe or unsubscribe via the World Wide Web, visit
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
or, via email, send a message with subject or body 'help' to
[email protected]
You can reach the person managing the list at
[email protected]
When replying, please edit your Subject line so it is more specific
than "Re: Contents of USRP-users digest..."
Today's Topics:
1. Re: Damaged hardware? (Marcus D. Leech)
2. Subsev Setting for Two Channels with B210 in GRC (Yutong Liu)
3. Re: Subsev Setting for Two Channels with B210 in GRC
(Ron Economos)
4. Re: Subsev Setting for Two Channels with B210 in GRC (Yutong Liu)
5. Re: Subsev Setting for Two Channels with B210 in GRC
(Marcus D. Leech)
6. Re: Subsev Setting for Two Channels with B210 in GRC
(Ron Economos)
7. Re: Subsev Setting for Two Channels with B210 in GRC (Yutong Liu)
8. Re: Subsev Setting for Two Channels with B210 in GRC (Yutong Liu)
9. Re: Subsev Setting for Two Channels with B210 in GRC
(Marcus D. Leech)
----------------------------------------------------------------------
Message: 1
Date: Sat, 04 Mar 2017 13:26:54 -0500
From: "Marcus D. Leech" <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] Damaged hardware?
Message-ID: <[email protected]>
Content-Type: text/plain; charset="windows-1252"; Format="flowed"
On 03/04/2017 08:46 AM, Carin via USRP-users wrote:
> Hi,
>
> I just read your examples provided with USRP Hardware Driver:
> https://www.ettus.com/content/files/kb/application_note_uhd_examples.pdf.
>
> I am testing a USRP B210 and to test the receive function I use a
> generator. For now I'm testing the receive function:
>
> I read that you should not exceed the maximum input (-10 dBm). I have
> some questions regarding this:
> - Does this mean that I need to check that the power supply in the
> signal from the generator is <-10 dBm =0.1 mW? How do I know which
> voltage this corresponds to?
Here is a table that translates dBm into voltage, for a 50-ohm system.
> - what happen if you do exceed this limit? Is it just to make sure the
> program works properly or can you actually damage the hardware?
> - If the hardware is damaged, is it only the daughter card that is
> currently used, or both of them?
Exceeding the maximum recommended power level risks damage to the
hardware--the low-noise amplifier can become damaged--usually
only on the channel in use.
>
>
> Also another question:
> - The realtime controls that should be used to specify free, samp
> rate, gain - they will appear when I run the program, right?
The examples above are all command-line based--there is no GUI interface.
> - A too high frequency, gain or samp rate will not damage hardware,
> but not give the expected results, right?
Correct.
>
> Regards,
> Carin
>
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/1146b3e1/attachment-0001.html>
------------------------------
Message: 2
Date: Sat, 4 Mar 2017 19:41:29 -0500
From: Yutong Liu <[email protected]>
To: <[email protected]>
Subject: [USRP-users] Subsev Setting for Two Channels with B210 in GRC
Message-ID:
<CAGuW==covmfzhlb5bao49e85j0nxgcbx0z92g2i_kd41qmn...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi,
I am hoping to have two transmitting ports outputting a signal with a
controllable delay. However, none of the transmitting port is working with
the flow graph attached below. Each port only works separately. What is the
right setting to have them work simultaneously?
Regards,
Yutong
?
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/cb14502a/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screen Shot 2017-03-04 at 7.16.12 PM.png
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/cb14502a/attachment-0001.png>
------------------------------
Message: 3
Date: Sat, 4 Mar 2017 16:58:28 -0800
From: Ron Economos <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] Subsev Setting for Two Channels with B210 in
GRC
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
As it turns out, you leave the Subdev Dev field blank. However, you do
need to set the Sync field to "unknown PPS".
Ron
On 03/04/2017 04:41 PM, Yutong Liu via USRP-users wrote:
> Hi,
>
> I am hoping to have two transmitting ports outputting a signal with a
> controllable delay. However, none of the transmitting port is working
> with the flow graph attached below. Each port only works separately.
> What is the right setting to have them work simultaneously?
>
> Regards,
> Yutong
> ?
>
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/0af99cfe/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/0af99cfe/attachment-0001.png>
------------------------------
Message: 4
Date: Sat, 4 Mar 2017 20:22:24 -0500
From: Yutong Liu <[email protected]>
To: Ron Economos <[email protected]>
Cc: <[email protected]>
Subject: Re: [USRP-users] Subsev Setting for Two Channels with B210 in
GRC
Message-ID:
<CAGuW==civcg1chdpqy79-me7zzbp8l8t8o7jezmukbtc0jo...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi Ron,
I am still confused. I think I already set subdev spec to A:A A:B or is
there another place need to be set? I already set the sync to "unknown PPS"
but I still don't have any output. This is the detail of my current setting:
?
?Yutong
On Sat, Mar 4, 2017 at 7:58 PM, Ron Economos via USRP-users <
[email protected]> wrote:
> As it turns out, you leave the Subdev Dev field blank. However, you do
> need to set the Sync field to "unknown PPS".
>
> Ron
> On 03/04/2017 04:41 PM, Yutong Liu via USRP-users wrote:
>
> Hi,
>
> I am hoping to have two transmitting ports outputting a signal with a
> controllable delay. However, none of the transmitting port is working with
> the flow graph attached below. Each port only works separately. What is the
> right setting to have them work simultaneously?
>
>
> Regards,
> Yutong
> ?
>
>
> _______________________________________________
> USRP-users mailing
> [email protected]http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/0a4fdd74/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screen Shot 2017-03-04 at 8.18.03 PM.png
Type: image/png
Size: 90890 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/0a4fdd74/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/0a4fdd74/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screen Shot 2017-03-04 at 8.17.54 PM.png
Type: image/png
Size: 106927 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/0a4fdd74/attachment-0005.png>
------------------------------
Message: 5
Date: Sat, 04 Mar 2017 20:31:40 -0500
From: "Marcus D. Leech" <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] Subsev Setting for Two Channels with B210 in
GRC
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
On 03/04/2017 08:22 PM, Yutong Liu via USRP-users wrote:
> Hi Ron,
>
> I am still confused. I think I already set subdev spec to A:A A:B or
> is there another place need to be set? I already set the sync to
> "unknown PPS" but I still don't have any output. This is the detail of
> my current setting:
>
>
> ?
> ?Yutong
>
> On Sat, Mar 4, 2017 at 7:58 PM, Ron Economos via USRP-users
> <[email protected] <mailto:[email protected]>> wrote:
>
> As it turns out, you leave the Subdev Dev field blank. However,
> you do need to set the Sync field to "unknown PPS".
>
> Ron
>
> On 03/04/2017 04:41 PM, Yutong Liu via USRP-users wrote:
>> Hi,
>>
>> I am hoping to have two transmitting ports outputting a signal
>> with a controllable delay. However, none of the transmitting port
>> is working with the flow graph attached below. Each port only
>> works separately. What is the right setting to have them work
>> simultaneously?
>>
>> Regards,
>> Yutong
>> ?
>>
What do you mean by "no output"?
What are the contents of your files? What is their average magnitude?
What gain setting are you using?
Do you get "uU" messages on your console (indicating underrun)? Keeping
2 X 25e6 SPS channels full without overruns requires a fairly
powerful computer--even if you're just dumping files to the output.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/695020da/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 106927 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/695020da/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 90890 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/695020da/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/695020da/attachment-0005.png>
------------------------------
Message: 6
Date: Sat, 4 Mar 2017 17:31:53 -0800
From: Ron Economos <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] Subsev Setting for Two Channels with B210 in
GRC
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Leave the Subdev Spec blank, like so:
subdev
Ron
On 03/04/2017 05:22 PM, Yutong Liu wrote:
> Hi Ron,
>
> I am still confused. I think I already set subdev spec to A:A A:B or
> is there another place need to be set? I already set the sync to
> "unknown PPS" but I still don't have any output. This is the detail of
> my current setting:
>
>
> ?
> ?Yutong
>
> On Sat, Mar 4, 2017 at 7:58 PM, Ron Economos via USRP-users
> <[email protected] <mailto:[email protected]>> wrote:
>
> As it turns out, you leave the Subdev Dev field blank. However,
> you do need to set the Sync field to "unknown PPS".
>
> Ron
>
> On 03/04/2017 04:41 PM, Yutong Liu via USRP-users wrote:
>> Hi,
>>
>> I am hoping to have two transmitting ports outputting a signal
>> with a controllable delay. However, none of the transmitting port
>> is working with the flow graph attached below. Each port only
>> works separately. What is the right setting to have them work
>> simultaneously?
>>
>> Regards,
>> Yutong
>> ?
>>
>>
>> _______________________________________________
>> USRP-users mailing list
>> [email protected] <mailto:[email protected]>
>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>> <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com>
> _______________________________________________ USRP-users mailing
> list [email protected]
> <mailto:[email protected]>
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/ae2c80e8/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: subdev.png
Type: image/png
Size: 71088 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/ae2c80e8/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 106927 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/ae2c80e8/attachment-0005.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 90890 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/ae2c80e8/attachment-0006.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/ae2c80e8/attachment-0007.png>
------------------------------
Message: 7
Date: Sat, 4 Mar 2017 20:59:33 -0500
From: Yutong Liu <[email protected]>
To: "Marcus D. Leech" <[email protected]>
Cc: <[email protected]>
Subject: Re: [USRP-users] Subsev Setting for Two Channels with B210 in
GRC
Message-ID:
<CAGuW==c1yvu66btdyhbfocqd2go8s+o_eholuo8ttjqasx8...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi Marcus,
By no output, I mean the LEDs of both transceiver are off and signals are
not transmitting. My file is a square wave with pulse width 100 times
smaller than its period. I set the gain to be 90 dB.
I did get "The total sum of rates (52.000000 MSps on 2 channels) exceeds
the maximum capacity of the connection." When I used one port, I can run
signal with sample rate of 52 MHz. What is the limitation of the maximum
capacity of the connection? I still received the same thing even if I
lowered the sample rate to 20 MHz.
On Sat, Mar 4, 2017 at 8:31 PM, Marcus D. Leech via USRP-users <
[email protected]> wrote:
> On 03/04/2017 08:22 PM, Yutong Liu via USRP-users wrote:
>
> Hi Ron,
>
> I am still confused. I think I already set subdev spec to A:A A:B or is
> there another place need to be set? I already set the sync to "unknown PPS"
> but I still don't have any output. This is the detail of my current setting:
>
>
> ?
> ?Yutong
>
> On Sat, Mar 4, 2017 at 7:58 PM, Ron Economos via USRP-users <
> [email protected]> wrote:
>
>> As it turns out, you leave the Subdev Dev field blank. However, you do
>> need to set the Sync field to "unknown PPS".
>>
>> Ron
>> On 03/04/2017 04:41 PM, Yutong Liu via USRP-users wrote:
>>
>> Hi,
>>
>> I am hoping to have two transmitting ports outputting a signal with a
>> controllable delay. However, none of the transmitting port is working with
>> the flow graph attached below. Each port only works separately. What is the
>> right setting to have them work simultaneously?
>>
>>
>> Regards,
>> Yutong
>> ?
>>
>> What do you mean by "no output"?
>
> What are the contents of your files? What is their average magnitude?
>
> What gain setting are you using?
>
> Do you get "uU" messages on your console (indicating underrun)? Keeping
> 2 X 25e6 SPS channels full without overruns requires a fairly
> powerful computer--even if you're just dumping files to the output.
>
>
>
>
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/5a3b6f5c/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 90890 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/5a3b6f5c/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 106927 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/5a3b6f5c/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/5a3b6f5c/attachment-0005.png>
------------------------------
Message: 8
Date: Sun, 5 Mar 2017 03:21:22 +0000
From: Yutong Liu <[email protected]>
To: "Marcus D. Leech" <[email protected]>
Cc: <[email protected]>
Subject: Re: [USRP-users] Subsev Setting for Two Channels with B210 in
GRC
Message-ID:
<CAGuW==f=e6wezsuwphv2t6u2-dbairw-5uaasa5pxl3vhkv...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Thanks for replying. I already figured out the problem. I am very
appreciated for your help!
On Sat, Mar 4, 2017 at 8:59 PM Yutong Liu <[email protected]> wrote:
> Hi Marcus,
>
> By no output, I mean the LEDs of both transceiver are off and signals are
> not transmitting. My file is a square wave with pulse width 100 times
> smaller than its period. I set the gain to be 90 dB.
> I did get "The total sum of rates (52.000000 MSps on 2 channels) exceeds
> the maximum capacity of the connection." When I used one port, I can run
> signal with sample rate of 52 MHz. What is the limitation of the maximum
> capacity of the connection? I still received the same thing even if I
> lowered the sample rate to 20 MHz.
>
> On Sat, Mar 4, 2017 at 8:31 PM, Marcus D. Leech via USRP-users <
> [email protected]> wrote:
>
> On 03/04/2017 08:22 PM, Yutong Liu via USRP-users wrote:
>
> Hi Ron,
>
> I am still confused. I think I already set subdev spec to A:A A:B or is
> there another place need to be set? I already set the sync to "unknown PPS"
> but I still don't have any output. This is the detail of my current setting:
>
>
> ?
> ?Yutong
>
> On Sat, Mar 4, 2017 at 7:58 PM, Ron Economos via USRP-users <
> [email protected]> wrote:
>
> As it turns out, you leave the Subdev Dev field blank. However, you do
> need to set the Sync field to "unknown PPS".
>
> Ron
> On 03/04/2017 04:41 PM, Yutong Liu via USRP-users wrote:
>
> Hi,
>
> I am hoping to have two transmitting ports outputting a signal with a
> controllable delay. However, none of the transmitting port is working with
> the flow graph attached below. Each port only works separately. What is the
> right setting to have them work simultaneously?
>
>
> Regards,
> Yutong
> ?
>
> What do you mean by "no output"?
>
> What are the contents of your files? What is their average magnitude?
>
> What gain setting are you using?
>
> Do you get "uU" messages on your console (indicating underrun)? Keeping
> 2 X 25e6 SPS channels full without overruns requires a fairly
> powerful computer--even if you're just dumping files to the output.
>
>
>
>
>
> _______________________________________________
> USRP-users mailing list
> [email protected]
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170305/51439af6/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170305/51439af6/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 90890 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170305/51439af6/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 106927 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170305/51439af6/attachment-0005.png>
------------------------------
Message: 9
Date: Sat, 04 Mar 2017 22:53:53 -0500
From: "Marcus D. Leech" <[email protected]>
To: Yutong Liu <[email protected]>
Cc: [email protected]
Subject: Re: [USRP-users] Subsev Setting for Two Channels with B210 in
GRC
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
On 03/04/2017 08:59 PM, Yutong Liu wrote:
> Hi Marcus,
>
> By no output, I mean the LEDs of both transceiver are off and signals
> are not transmitting. My file is a square wave with pulse width 100
> times smaller than its period. I set the gain to be 90 dB.
> I did get "The total sum of rates (52.000000 MSps on 2 channels)
> exceeds the maximum capacity of the connection." When I used one
> port, I can run signal with sample rate of 52 MHz. What is the
> limitation of the maximum capacity of the connection? I still received
> the same thing even if I lowered the sample rate to 20 MHz.
>
The most you can do, with 2 channels, over USB3.0 is 32Msps per
channel--the master clock is constrained be no more than 32MHz
(and thus maximum sample rate), in a 2X scenario with B2XX.
If you're on USB2.0, only 4Msps per channel--this is due to the
bandwidth limits of USB2.0.
Also, and maximum RF gain (90dB) with modest-magnitude signals (let's
say, averaging no greater than +/- 0.5), you still run the risk
of non-linearity, depending on the character of the signals.
Modulating with a straight square-wave will produce lots of harmonics,
which may not be what you want.
> On Sat, Mar 4, 2017 at 8:31 PM, Marcus D. Leech via USRP-users
> <[email protected] <mailto:[email protected]>> wrote:
>
> On 03/04/2017 08:22 PM, Yutong Liu via USRP-users wrote:
>> Hi Ron,
>>
>> I am still confused. I think I already set subdev spec to A:A A:B
>> or is there another place need to be set? I already set the sync
>> to "unknown PPS" but I still don't have any output. This is the
>> detail of my current setting:
>>
>>
>> ?
>> ?Yutong
>>
>> On Sat, Mar 4, 2017 at 7:58 PM, Ron Economos via USRP-users
>> <[email protected] <mailto:[email protected]>>
>> wrote:
>>
>> As it turns out, you leave the Subdev Dev field blank.
>> However, you do need to set the Sync field to "unknown PPS".
>>
>> Ron
>>
>> On 03/04/2017 04:41 PM, Yutong Liu via USRP-users wrote:
>>> Hi,
>>>
>>> I am hoping to have two transmitting ports outputting a
>>> signal with a controllable delay. However, none of the
>>> transmitting port is working with the flow graph attached
>>> below. Each port only works separately. What is the right
>>> setting to have them work simultaneously?
>>>
>>> Regards,
>>> Yutong
>>> ?
>>>
> What do you mean by "no output"?
>
> What are the contents of your files? What is their average magnitude?
>
> What gain setting are you using?
>
> Do you get "uU" messages on your console (indicating underrun)?
> Keeping 2 X 25e6 SPS channels full without overruns requires a fairly
> powerful computer--even if you're just dumping files to the output.
>
>
>
>
>
> _______________________________________________
> USRP-users mailing list
> [email protected] <mailto:[email protected]>
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/97c6c93f/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 106927 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/97c6c93f/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 90890 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/97c6c93f/attachment-0004.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 66275 bytes
Desc: not available
URL:
<http://lists.ettus.com/pipermail/usrp-users_lists.ettus.com/attachments/20170304/97c6c93f/attachment-0005.png>
------------------------------
Subject: Digest Footer
_______________________________________________
USRP-users mailing list
[email protected]
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
------------------------------
End of USRP-users Digest, Vol 79, Issue 5
*****************************************
