# For Sale: bladeRF x115 with GPIO expansion

**URL:** <https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825>\
**Category:** GNU Radio\
**Created:** [March 16, 2014, 2:14am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825 "2014-03-16T02:14:06Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Detlef\_R](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/58f4c7/32.png) [@Detlef\_R](https://www.ruby-forum.com/u/Detlef_R)\
**Post date:** [March 16, 2014, 2:14am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/1 "2014-03-16T02:14:06Z")

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I just don’t use it much since I primarily use 2m amateur band. Very  
clean and little use; never left my lab bench. The x115 is the large  
FPGA version. Also included is the GPIO expander board and the 1m USB  
3.0 cable. Works great with GNU Radio via gr-osmosdr.

Asking $600 via PayPal with USPS Priority Mail shipping in USA.

Pics here:

[http://forums.qrz.com/showthread.php?428974-bladeRF-x115-SDR-and-GPIO-Expansion](http://forums.qrz.com/showthread.php?428974-bladeRF-x115-SDR-and-GPIO-Expansion)

Thanks,  
Lou  
KD4HSO

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**Author:** ![madengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ec9cab/32.png) [@madengr](https://www.ruby-forum.com/u/madengr)\
**Post date:** [March 16, 2014, 2:24am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/2 "2014-03-16T02:24:58Z")

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Yes, thanks, I’m aware of that. I already have an N210 + WBX +  
LFTX/LFRX cards so that’s getting all the use. I have been doing allot  
of LF DX monitoring recently, so 60 kHz isn’t even low enough.

Thanks,  
Lou  
KD4HSO

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**Author:** ![madengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ec9cab/32.png) [@madengr](https://www.ruby-forum.com/u/madengr)\
**Post date:** [March 16, 2014, 2:18am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/3 "2014-03-16T02:18:09Z")

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BladeRF have released an transverter that extends the frequency range  
down  
to 60KHz. Are you sure you want to sell?

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**Author:** ![madengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ec9cab/32.png) [@madengr](https://www.ruby-forum.com/u/madengr)\
**Post date:** [March 16, 2014, 2:31am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/4 "2014-03-16T02:31:08Z")

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On 03/15/2014 09:23 PM, Louis B. wrote:

> Yes, thanks, I’m aware of that. I already have an N210 + WBX + LFTX/LFRX cards  
> so that’s getting all the use. I have been doing allot of LF DX monitoring  
> recently, so 60 kHz isn’t even low enough.
> 
> Thanks,  
> Lou  
> KD4HSO

I’ll point out that for VLF monitoring, a 96kHz (DC-48kHz) or 192kHz  
(DC-96kHz) sound card works quite well.

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**Author:** ![madengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ec9cab/32.png) [@madengr](https://www.ruby-forum.com/u/madengr)\
**Post date:** [March 16, 2014, 2:58am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/5 "2014-03-16T02:58:34Z")

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Quite so. I have a GPSDO though, so it’s nice to be able to lock to  
that. Last week I recorded WWVB (60 kHz) amplitude and phase for 1 week  
to monitor propagation. Interesting results to see the fades over 6  
days Phase was futile though as their new BPSK mod messes things up.

Thanks,  
Lou  
KD4HSO

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**Author:** ![madengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ec9cab/32.png) [@madengr](https://www.ruby-forum.com/u/madengr)\
**Post date:** [March 16, 2014, 6:01pm UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/6 "2014-03-16T18:01:34Z")

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On Sat, 15 Mar 2014 20:57:02 -0500  
Louis B. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> Quite so. I have a GPSDO though, so it’s nice to be able to lock to that.  
> Last week I recorded WWVB (60 kHz) amplitude and phase for 1 week to monitor  
> propagation. Interesting results to see the fades over 6 days Phase was  
> futile though as their new BPSK mod messes things up.

I’d be interested in the results of your analysis.  
Heck, i’d be even interested in the raw data 🙂

And yes, the insanly stupid PSK modulation scheme of WWVB is a pain for  
everyone. ☹

```
  Attila K.

```

–  
I pity people who can’t find laughter or at least some bit of amusement  
in  
the little doings of the day. I believe I could find something  
ridiculous  
even in the saddest moment, if necessary. It has nothing to do with  
being  
superficial. It’s a matter of joy in life.  
– Sophie Scholl

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**Author:** ![madengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ec9cab/32.png) [@madengr](https://www.ruby-forum.com/u/madengr)\
**Post date:** [March 16, 2014, 10:54pm UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/7 "2014-03-16T22:54:16Z")

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On Mar 16, 2014, at 12:00 PM, Attila K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> I’d be interested in the results of your analysis.  
> Heck, i’d be even interested in the raw data 🙂
> 
> And yes, the insanly stupid PSK modulation scheme of WWVB is a pain for  
> everyone. ☹

I switched this reply to the thread I posted last night, which has the  
plot and python files. Here is the raw data:

[https://dl.dropboxusercontent.com/u/49570443/rms\_amplitude.bin](https://dl.dropboxusercontent.com/u/49570443/rms_amplitude.bin)

[https://dl.dropboxusercontent.com/u/49570443/phase.bin](https://dl.dropboxusercontent.com/u/49570443/phase.bin)

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**Author:** ![madengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ec9cab/32.png) [@madengr](https://www.ruby-forum.com/u/madengr)\
**Post date:** [March 16, 2014, 3:00am UTC](https://www.ruby-forum.com/t/for-sale-bladerf-x115-with-gpio-expansion/239825/8 "2014-03-16T03:00:24Z")

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On 03/15/2014 09:57 PM, Louis B. wrote:

> Discuss-gnuradio mailing list  
> [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
> [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)  
> I built a prototype WWVB receiver in GR a couple of years ago, but I  
> don’t locally get WWVB ☹ Neither did my LaCrosse clock though, so it  
> wasn’t my fault 🙂
