Empathy List Archives

S

shapkiquarry (at) gmail.com

Sat, Aug 5, 2023 12:49 AM

Below is shown an Octoclock CDA-2990. What is this threaded 6-to-15V power socket?

What would be a corresponding threaded connector used with that?

(two images are attached)

Below is shown an Octoclock CDA-2990. What is this threaded 6-to-15V power socket? What would be a corresponding threaded connector used with that? (two images are attached)

MD

Marcus D. Leech

Sat, Aug 5, 2023 12:58 AM

On 04/08/2023 20:49, shapkiquarry@gmail.com wrote:

Below is shown an Octoclock CDA-2990. What is this threaded 6-to-15V
power socket?

What would be a corresponding threaded connector used with that?

(two images are attached)

I THINK one of these will work:

https://www.digikey.ca/en/products/detail/tensility-international-corp/10-00113/2123068?utm_adgroup=&utm_source=google&utm_medium=cpc&utm_campaign=Pmax%20Shopping_Product_New%20Customer%20Acquisition&utm_term=&productid=2123068&gclid=CjwKCAjww7KmBhAyEiwA5-PUSpaO7wV6n5IvvRxsvnUHHwehR7mf9c3mk9ioWTUhujMxV1MXJSGCehoCwYYQAvD_BwE

On 04/08/2023 20:49, shapkiquarry@gmail.com wrote: > > Below is shown an Octoclock CDA-2990. What is this threaded 6-to-15V > power socket? > > What would be a corresponding threaded connector used with that? > > (two images are attached) > > I *THINK* one of these will work: https://www.digikey.ca/en/products/detail/tensility-international-corp/10-00113/2123068?utm_adgroup=&utm_source=google&utm_medium=cpc&utm_campaign=Pmax%20Shopping_Product_New%20Customer%20Acquisition&utm_term=&productid=2123068&gclid=CjwKCAjww7KmBhAyEiwA5-PUSpaO7wV6n5IvvRxsvnUHHwehR7mf9c3mk9ioWTUhujMxV1MXJSGCehoCwYYQAvD_BwE

Z

zhou

Mon, Aug 7, 2023 8:40 AM

Hi,
I have a question regarding USRP calibration. I am using X310 and UHD 4.4.To save calibration time, the step size is set to be 5MHz and the freq range is [600MHz, 6GHz].My questions are:1. will the compensation be made at these discrete frequencies only, or interpolation will be applied to frequencies which are between the steps?2. how to compensate DC offset in case there is DSP freq?
Thanks,Hongwei

Hi, I have a question regarding USRP calibration. I am using X310 and UHD 4.4.To save calibration time, the step size is set to be 5MHz and the freq range is [600MHz, 6GHz].My questions are:1. will the compensation be made at these discrete frequencies only, or interpolation will be applied to frequencies which are between the steps?2. how to compensate DC offset in case there is DSP freq? Thanks,Hongwei

MD

Marcus D. Leech

Mon, Aug 7, 2023 1:10 PM

On 07/08/2023 04:40, zhou via USRP-users wrote:

Hi,

I have a question regarding USRP calibration. I am using X310 and UHD 4.4.
To save calibration time, the step size is set to be 5MHz and the freq
range is [600MHz, 6GHz].
My questions are:

will the compensation be made at these discrete frequencies only,
or interpolation will be applied to frequencies which are between the
steps?

Interpolation is applied.

how to compensate DC offset in case there is DSP freq?

The DC offset compensation is applied based on the analog frequency
setting of the RF PLL. The DSP component
is "perfect" from a offset and balance perspective.

Thanks,
Hongwei

USRP-users mailing list --usrp-users@lists.ettus.com
To unsubscribe send an email tousrp-users-leave@lists.ettus.com

On 07/08/2023 04:40, zhou via USRP-users wrote: > Hi, > > I have a question regarding USRP calibration. I am using X310 and UHD 4.4. > To save calibration time, the step size is set to be 5MHz and the freq > range is [600MHz, 6GHz]. > My questions are: > 1. will the compensation be made at these discrete frequencies only, > or interpolation will be applied to frequencies which are between the > steps? Interpolation is applied. > 2. how to compensate DC offset in case there is DSP freq? The DC offset compensation is applied based on the *analog* frequency setting of the RF PLL. The DSP component is "perfect" from a offset and balance perspective. > > Thanks, > Hongwei > > > > _______________________________________________ > USRP-users mailing list --usrp-users@lists.ettus.com > To unsubscribe send an email tousrp-users-leave@lists.ettus.com

Z

zhou

Mon, Aug 7, 2023 1:41 PM

Thanks for your quick response, Marcus.
On the 2nd question, I mean, when LO is different from the target RF freq, DSP will make up the difference. LO leak will become a spurious signal at DSP freq. Can this LO leak be compensated in USRP? if yes, how?
Thanks.

On Monday, 7 August 2023 at 14:11:08 BST, Marcus D. Leech patchvonbraun@gmail.com wrote:
On 07/08/2023 04:40, zhou via USRP-users wrote:

Hi,
I have a question regarding USRP calibration. I am using X310 and UHD 4.4. To save calibration time, the step size is set to be 5MHz and the freq range is [600MHz, 6GHz]. My questions are: 1. will the compensation be made at these discrete frequencies only, or interpolation will be applied to frequencies which are between the steps? Interpolation is applied.

how to compensate DC offset in case there is DSP freq?
The DC offset compensation is applied based on the analog frequency setting of the RF PLL. The DSP component
is "perfect" from a offset and balance perspective.

Thanks, Hongwei

USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com

Thanks for your quick response, Marcus. On the 2nd question, I mean, when LO is different from the target RF freq, DSP will make up the difference. LO leak will become a spurious signal at DSP freq. Can this LO leak be compensated in USRP? if yes, how? Thanks. On Monday, 7 August 2023 at 14:11:08 BST, Marcus D. Leech <patchvonbraun@gmail.com> wrote: On 07/08/2023 04:40, zhou via USRP-users wrote: Hi, I have a question regarding USRP calibration. I am using X310 and UHD 4.4. To save calibration time, the step size is set to be 5MHz and the freq range is [600MHz, 6GHz]. My questions are: 1. will the compensation be made at these discrete frequencies only, or interpolation will be applied to frequencies which are between the steps? Interpolation is applied. 2. how to compensate DC offset in case there is DSP freq? The DC offset compensation is applied based on the *analog* frequency setting of the RF PLL. The DSP component is "perfect" from a offset and balance perspective. Thanks, Hongwei _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-leave@lists.ettus.com _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-leave@lists.ettus.com

MD

Marcus D. Leech

Mon, Aug 7, 2023 1:45 PM

On 07/08/2023 09:41, zhou via USRP-users wrote:

Thanks for your quick response, Marcus.

On the 2nd question, I mean, when LO is different from the target RF
freq, DSP will make up the difference. LO leak will become a spurious
signal at DSP freq. Can this LO leak be compensated in USRP? if yes, how?

If you move the LO leakage out of the passband of your application
sample rate, it won't be bothersome.

Thanks.

On Monday, 7 August 2023 at 14:11:08 BST, Marcus D. Leech
patchvonbraun@gmail.com wrote:

On 07/08/2023 04:40, zhou via USRP-users wrote:
Hi,

I have a question regarding USRP calibration. I am using X310 and UHD 4.4.
To save calibration time, the step size is set to be 5MHz and the freq
range is [600MHz, 6GHz].
My questions are:

will the compensation be made at these discrete frequencies only,
or interpolation will be applied to frequencies which are between the
steps?
Interpolation is applied.

how to compensate DC offset in case there is DSP freq?

The DC offset compensation is applied based on the analog frequency
setting of the RF PLL. The DSP component
is "perfect" from a offset and balance perspective.

Thanks,
Hongwei

USRP-users mailing list --usrp-users@lists.ettus.com mailto:usrp-users@lists.ettus.com
To unsubscribe send an email tousrp-users-leave@lists.ettus.com mailto:usrp-users-leave@lists.ettus.com

USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com

USRP-users mailing list --usrp-users@lists.ettus.com
To unsubscribe send an email tousrp-users-leave@lists.ettus.com

On 07/08/2023 09:41, zhou via USRP-users wrote: > Thanks for your quick response, Marcus. > > On the 2nd question, I mean, when LO is different from the target RF > freq, DSP will make up the difference. LO leak will become a spurious > signal at DSP freq. Can this LO leak be compensated in USRP? if yes, how? > If you move the LO leakage out of the passband of your application sample rate, it won't be bothersome. > Thanks. > > > On Monday, 7 August 2023 at 14:11:08 BST, Marcus D. Leech > <patchvonbraun@gmail.com> wrote: > > On 07/08/2023 04:40, zhou via USRP-users wrote: > Hi, > > I have a question regarding USRP calibration. I am using X310 and UHD 4.4. > To save calibration time, the step size is set to be 5MHz and the freq > range is [600MHz, 6GHz]. > My questions are: > 1. will the compensation be made at these discrete frequencies only, > or interpolation will be applied to frequencies which are between the > steps? > Interpolation is applied. > >> 2. how to compensate DC offset in case there is DSP freq? > The DC offset compensation is applied based on the *analog* frequency > setting of the RF PLL. The DSP component > is "perfect" from a offset and balance perspective. > > > >> >> Thanks, >> Hongwei >> >> >> >> _______________________________________________ >> USRP-users mailing list --usrp-users@lists.ettus.com <mailto:usrp-users@lists.ettus.com> >> To unsubscribe send an email tousrp-users-leave@lists.ettus.com <mailto:usrp-users-leave@lists.ettus.com> > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-leave@lists.ettus.com > > _______________________________________________ > USRP-users mailing list --usrp-users@lists.ettus.com > To unsubscribe send an email tousrp-users-leave@lists.ettus.com

S

shapkiquarry (at) gmail.com

Tue, Aug 8, 2023 5:16 PM

Hello Marcus,

Thank you for a response. But I have been hunting down a barrel connector for over a week. I have searched all of digikey, mouser, and amazon. I have already bought and received a barrel connector which I purchased from Ebay, and it was too wide for this socket. I am currently buying various connectors with “long barrel” versus “short barrel” and simply shooting in the dark now.

If anyone has any definitive datasheets on this with actual specifications, please let me know.

Hello Marcus, Thank you for a response. But I have been hunting down a barrel connector for over a week. I have searched all of digikey, mouser, and amazon. I have already bought and received a barrel connector which I purchased from Ebay, and it was too wide for this socket. I am currently buying various connectors with “long barrel” versus “short barrel” and simply shooting in the dark now. If anyone has any definitive datasheets on this with actual specifications, please let me know.

MD

Marcus D. Leech

Tue, Aug 8, 2023 5:22 PM

On 08/08/2023 13:16, shapkiquarry@gmail.com wrote:

Hello Marcus,

Thank you for a response. But I have been hunting down a barrel
connector for over a week. I have searched all of digikey, mouser, and
amazon. I have already bought and received a barrel connector which I
purchased from Ebay, and it was too wide for this socket. I am
currently buying various connectors with “long barrel” versus “short
barrel” and simply shooting in the dark now.

If anyone has any definitive datasheets on this with actual
specifications, please let me know.

USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com

I'm trying to get part numbers. From my own experience, I think it's
just basically a standard 5.5mm x 2.1mm barrel connector,
with the added frill of the threaded locking arrangement.

On 08/08/2023 13:16, shapkiquarry@gmail.com wrote: > > Hello Marcus, > > Thank you for a response. But I have been hunting down a barrel > connector for over a week. I have searched all of digikey, mouser, and > amazon. I have already bought and received a barrel connector which I > purchased from Ebay, and it was too wide for this socket. I am > currently buying various connectors with “long barrel” versus “short > barrel” and simply shooting in the dark now. > > If anyone has any definitive datasheets on this with actual > specifications, please let me know. > > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-leave@lists.ettus.com I'm trying to get part numbers. From my own experience, I think it's just basically a standard 5.5mm x 2.1mm barrel connector, with the added frill of the threaded locking arrangement.

RC

Royce Connerley

Tue, Aug 8, 2023 7:29 PM

The E310 uses a bayonet style locking barrel connector. I have used Kycon KLDX-PA-0202-A-LT on the E310. DigiKey has them in stock.

On Aug 8, 2023, at 12:22 PM, Marcus D. Leech patchvonbraun@gmail.com wrote:

On 08/08/2023 13:16, shapkiquarry@gmail.com wrote:

Hello Marcus,

Thank you for a response. But I have been hunting down a barrel connector for over a week. I have searched all of digikey, mouser, and amazon. I have already bought and received a barrel connector which I purchased from Ebay, and it was too wide for this socket. I am currently buying various connectors with “long barrel” versus “short barrel” and simply shooting in the dark now.

If anyone has any definitive datasheets on this with actual specifications, please let me know.

USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com

I'm trying to get part numbers. From my own experience, I think it's just basically a standard 5.5mm x 2.1mm barrel connector,
with the added frill of the threaded locking arrangement.

USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com

The E310 uses a bayonet style locking barrel connector. I have used Kycon KLDX-PA-0202-A-LT on the E310. DigiKey has them in stock. > On Aug 8, 2023, at 12:22 PM, Marcus D. Leech <patchvonbraun@gmail.com> wrote: > > On 08/08/2023 13:16, shapkiquarry@gmail.com wrote: >> >> Hello Marcus, >> >> Thank you for a response. But I have been hunting down a barrel connector for over a week. I have searched all of digikey, mouser, and amazon. I have already bought and received a barrel connector which I purchased from Ebay, and it was too wide for this socket. I am currently buying various connectors with “long barrel” versus “short barrel” and simply shooting in the dark now. >> >> If anyone has any definitive datasheets on this with actual specifications, please let me know. >> >> >> _______________________________________________ >> USRP-users mailing list -- usrp-users@lists.ettus.com >> To unsubscribe send an email to usrp-users-leave@lists.ettus.com > I'm trying to get part numbers. From my own experience, I think it's just basically a standard 5.5mm x 2.1mm barrel connector, > with the added frill of the threaded locking arrangement. > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-leave@lists.ettus.com

Z

zhou

Wed, Aug 9, 2023 9:26 AM

Thanks Marcus.I find that it is easier to choose target RF at which DSP freq is zero, then avoid DC in data allocation in baseband.
Anyway, what do "lowest offset" and "corrected " mean in the calibration file? some example lines as below. I am uinsg step size 1MHz.TX DC: 1020.000000 MHz: lowest offset -92.824059 dB, corrected 35.168568 dBTX DC: 1021.001221 MHz: lowest offset -90.716408 dB, corrected 32.376762 dBTX DC: 1022.002442 MHz: lowest offset -91.902306 dB, corrected 34.561279 dB
Kind regards,Hongwei

On Monday, 7 August 2023 at 14:46:35 BST, Marcus D. Leech <patchvonbraun@gmail.com> wrote:

On 07/08/2023 09:41, zhou via USRP-users wrote:

Thanks for your quick response, Marcus.
On the 2nd question, I mean, when LO is different from the target RF freq, DSP will make up the difference. LO leak will become a spurious signal at DSP freq. Can this LO leak be compensated in USRP? if yes, how?
If you move the LO leakage out of the passband of your application sample rate, it won't be bothersome.

Thanks.

On Monday, 7 August 2023 at 14:11:08 BST, Marcus D. Leech patchvonbraun@gmail.com wrote:
On 07/08/2023 04:40, zhou via USRP-users wrote:

Hi,

I have a question regarding USRP calibration. I am using X310 and UHD 4.4. To save calibration time, the step size is set to be 5MHz and the freq range is [600MHz, 6GHz]. My questions are: 1. will the compensation be made at these discrete frequencies only, or interpolation will be applied to frequencies which are between the steps? Interpolation is applied.

how to compensate DC offset in case there is DSP freq?
The DC offset compensation is applied based on the analog frequency setting of the RF PLL. The DSP component
is "perfect" from a offset and balance perspective.

Thanks, Hongwei

USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com

_______________________________________________

USRP-users mailing list -- usrp-users@lists.ettus.com
To unsubscribe send an email to usrp-users-leave@lists.ettus.com

Thanks Marcus.I find that it is easier to choose target RF at which DSP freq is zero, then avoid DC in data allocation in baseband. Anyway, what do "lowest offset" and "corrected " mean in the calibration file? some example lines as below. I am uinsg step size 1MHz.TX DC: 1020.000000 MHz: lowest offset -92.824059 dB, corrected 35.168568 dBTX DC: 1021.001221 MHz: lowest offset -90.716408 dB, corrected 32.376762 dBTX DC: 1022.002442 MHz: lowest offset -91.902306 dB, corrected 34.561279 dB Kind regards,Hongwei On Monday, 7 August 2023 at 14:46:35 BST, Marcus D. Leech <patchvonbraun@gmail.com> wrote: On 07/08/2023 09:41, zhou via USRP-users wrote: Thanks for your quick response, Marcus. On the 2nd question, I mean, when LO is different from the target RF freq, DSP will make up the difference. LO leak will become a spurious signal at DSP freq. Can this LO leak be compensated in USRP? if yes, how? If you move the LO leakage out of the passband of your application sample rate, it won't be bothersome. Thanks. On Monday, 7 August 2023 at 14:11:08 BST, Marcus D. Leech <patchvonbraun@gmail.com> wrote: On 07/08/2023 04:40, zhou via USRP-users wrote: Hi, I have a question regarding USRP calibration. I am using X310 and UHD 4.4. To save calibration time, the step size is set to be 5MHz and the freq range is [600MHz, 6GHz]. My questions are: 1. will the compensation be made at these discrete frequencies only, or interpolation will be applied to frequencies which are between the steps? Interpolation is applied. 2. how to compensate DC offset in case there is DSP freq? The DC offset compensation is applied based on the *analog* frequency setting of the RF PLL. The DSP component is "perfect" from a offset and balance perspective. Thanks, Hongwei _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-leave@lists.ettus.com _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-leave@lists.ettus.com _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-leave@lists.ettus.com _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-leave@lists.ettus.com

usrp-users@lists.ettus.com

What is the power socket on an Octoclock CDA-2990?