[Hackrf-dev] advice on a txco to buy?

[Orrin Winton]

Hello folks, have had my HackRF for about a week and am going thru
Michael's tutorials & other tutorials. Love this device.

Are the eBay items described as "New External TCXO clock PPM 0.1 for HackRF
One GPS Applications GSM/WCDMA/LTE" for $10-12 the appropriate part to buy?
(noob here)

Or can some similar item be bought that has SMA jacks on it and can be
connected via cable to the jack on the rear of the HackRF?

The $10 clock looks like it'll require leaving the top half of the case
off, is why i ask.

At 434 MHz doing hackrf_transfer i'm getting 700 to 1000 hz drift
(downwards in freq) on a replayed CW signal, in ten minutes, which (if i'm
calculating this correctly) is 1.6 to 2.3 ppm.

I'm being careful to use the correct antenna on the HackRF, keep gains low,
and use low xmit power (2W) on my amateur transceiver across the room (to
record an rf_transfer). Possibly i should put an attenuator on the 2W radio.

Thanks for comments.

Orrin in NE Calif.
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Re: [Hackrf-dev] Hackrf1 with gnuradio 3.7.11 win64.msi

[Gavin Jacobs]

Dominic Spill
The windows msi package for 3.7.11 includes rtl and hackrf drivers in 
gr-osmosdr, so it should work.

jf.devois,

Here are some suggestions to narrow down the problem.

In Windows, start a Command window and navigate to:
C:\Program Files\GNURadio-3.7\bin

Then type this command:
rtl_test

You should see something like this:
Found 1 device(s):
  0:  Realtek, RTL2838UHIDIR, SN: 5201
Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 
19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 
48.0 49.6
[R82XX] PLL not locked!
Sampling at 2048000 S/s.

If you see the above, then you will have to type ^C to stop rtl_test.
BUT if you get an error message, then you will probably have to run the ZADIG 
program to updage the USB driver. Here is the link: https://zadig.akeo.ie/ Once 
you have done that, you can proceed with the next test.


Zadig - USB driver installation made easy
Zadig is a Windows application that installs generic USB drivers, such as 
WinUSB, libusb-win32/libusb0.sys or libusbK, to help you access USB devices.. 
It can be especially useful for cases where:
zadig.akeo.ie


In the same Command window you used above, type this command:
hackrf_info

You should get something like this:
hackrf_info version: 2017.02.1
libhackrf version: 2017.02.1 (0.5)
Found HackRF
Index: 0
Serial number: xxx
Board ID Number: 2 (HackRF One)
Firmware Version: 2017.02.1 (API:1.02)
Part ID Number: xxx

If that works, then gnuradio companion should also work.

Hope that helps,
Jake




From: HackRF-dev  on behalf of 
jf.dev...@gmail.com 
Sent: June 12, 2018 1:11 PM
To: Dominic Spill
Cc: hackrf-dev
Subject: Re: [Hackrf-dev] Hackrf1 with gnuradio 3.7.11 win64.msi




jf.dev...@gmail.com

From: Dominic Spill
Date: 2018-06-12 18:17
To: jf.dev...@gmail.com
CC: hackrf-dev
Subject: Re: [Hackrf-dev] Hackrf1 with gnuradio 3.7.11 win64.msi
On 12 June 2018 at 04:12, jf.dev...@gmail.com 
mailto:jf.dev...@gmail.com>> wrote:
>
> I'm a french physics teacher not a computer expert
> I use hackRf1 with grc  on a  Pentoo  Linux   USB stick boot  with my 
> students in electronics  since 2 years to measure emission reception levels
> with an hackrf1 for emission and a DBTV  USB stick for reception   both on 
> the same computer
> (I have been unable to install GRC  under a Linux system otherwise)
>
> I now try to use GRC/HackRF1   under Windows 7 ( which is my usual computer 
> system)
> The new .msi   gnuradio windows installation   3.7.11   works   in my 
> computer   under windows 7

Where did the .msi file come from?  could you give us a link to the download?

> GRC works without using external  sources and sinks
> But   it doesn't   works   with Hackrf1  (osmocom source)it creates a 
> python.exe  bug
>
> I tried with  the  DBTV  USB stickrtlsdr source :  grc doesn't   
> communicate with the usb  ( null source instead)
>
> Do I need a pilot or something else  to run  osmocom and   rtlsdr sources  
> with GRC  under windows 7?

I suspect this is because while the .msi contained GNU Radio, GRC, and 
gr-osmosdr, it doesn't include the libraries required for using HackRF or the 
RTL-SDR devices that gr-osmosdr uses.

I don't have much experience of using them, but I've heard good things about 
the binary packages hosted here: http://downloads.myriadrf.org/builds/PothosSDR/

Thanks,
  Dominic

Thank you for your answer
I tried to run GRC from the Pothos  installation but GRC is unable to find my 
Python 2.7 already installed
I'll tried to reinstall  Python 2.7

Sincerely
JF Devois

[https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif]
  Garanti sans virus. 
www.avast.com
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Re: [Hackrf-dev] Hackrf1 with gnuradio 3.7.11 win64.msi

[jf.dev...@gmail.com]

jf.dev...@gmail.com
 
From: Dominic Spill
Date: 2018-06-12 18:17
To: jf.dev...@gmail.com
CC: hackrf-dev
Subject: Re: [Hackrf-dev] Hackrf1 with gnuradio 3.7.11 win64.msi
On 12 June 2018 at 04:12, jf.dev...@gmail.com  wrote:
>
> I'm a french physics teacher not a computer expert
> I use hackRf1 with grc  on a  Pentoo  Linux   USB stick boot  with my 
> students in electronics  since 2 years to measure emission reception levels 
> with an hackrf1 for emission and a DBTV  USB stick for reception   both on 
> the same computer
> (I have been unable to install GRC  under a Linux system otherwise)
>
> I now try to use GRC/HackRF1   under Windows 7 ( which is my usual computer 
> system)
> The new .msi   gnuradio windows installation   3.7.11   works   in my 
> computer   under windows 7

Where did the .msi file come from?  could you give us a link to the download?

> GRC works without using external  sources and sinks
> But   it doesn't   works   with Hackrf1  (osmocom source)it creates a 
> python.exe  bug
>
> I tried with  the  DBTV  USB stickrtlsdr source :  grc doesn't   
> communicate with the usb  ( null source instead) 
>
> Do I need a pilot or something else  to run  osmocom and   rtlsdr sources  
> with GRC  under windows 7?

I suspect this is because while the .msi contained GNU Radio, GRC, and 
gr-osmosdr, it doesn't include the libraries required for using HackRF or the 
RTL-SDR devices that gr-osmosdr uses.

I don't have much experience of using them, but I've heard good things about 
the binary packages hosted here: http://downloads.myriadrf.org/builds/PothosSDR/

Thanks,
  Dominic

Thank you for your answer
I tried to run GRC from the Pothos  installation but GRC is unable to find my 
Python 2.7 already installed
I'll tried to reinstall  Python 2.7

Sincerely 
JF Devois


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https://www.avast.com/antivirus
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Re: [Hackrf-dev] Hackrf1 with gnuradio 3.7.11 win64.msi

[Dominic Spill]

On 12 June 2018 at 04:12, jf.dev...@gmail.com  wrote:
>
> I'm a french physics teacher not a computer expert
> I use hackRf1 with grc  on a  Pentoo  Linux   USB stick boot  with my
students in electronics  since 2 years to measure emission reception levels
> with an hackrf1 for emission and a DBTV  USB stick for reception   both
on the same computer
> (I have been unable to install GRC  under a Linux system otherwise)
>
> I now try to use GRC/HackRF1   under Windows 7 ( which is my usual
computer system)
> The new .msi   gnuradio windows installation   3.7.11   works   in my
computer   under windows 7

Where did the .msi file come from?  could you give us a link to the
download?

> GRC works without using external  sources and sinks
> But   it doesn't   works   with Hackrf1  (osmocom source)it creates a
python.exe  bug
>
> I tried with  the  DBTV  USB stickrtlsdr source :  grc doesn't
communicate with the usb  ( null source instead)
>
> Do I need a pilot or something else  to run  osmocom and   rtlsdr sources
 with GRC  under windows 7?

I suspect this is because while the .msi contained GNU Radio, GRC, and
gr-osmosdr, it doesn't include the libraries required for using HackRF or
the RTL-SDR devices that gr-osmosdr uses.

I don't have much experience of using them, but I've heard good things
about the binary packages hosted here:
http://downloads.myriadrf.org/builds/PothosSDR/

Thanks,
  Dominic
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[Hackrf-dev] Hackrf1 with gnuradio 3.7.11 win64.msi

[jf.dev...@gmail.com]

Hello

I'm a french physics teacher not a computer expert
I use hackRf1 with grc  on a  Pentoo  Linux   USB stick boot  with my 
students in electronics  since 2 years to measure emission reception levels 
with an hackrf1 for emission and a DBTV  USB stick for reception   both on the 
same computer
(I have been unable to install GRC  under a Linux system otherwise)

I now try to use GRC/HackRF1   under Windows 7 ( which is my usual computer 
system)
The new .msi   gnuradio windows installation   3.7.11   works   in my computer  
 under windows 7

GRC works without using external  sources and sinks
But   it doesn't   works   with Hackrf1  (osmocom source)it creates a 
python.exe  bug

I tried with  the  DBTV  USB stickrtlsdr source :  grc doesn't   
communicate with the usb  ( null source instead) 

Do I need a pilot or something else  to run  osmocom and   rtlsdr sources  with 
GRC  under windows 7?

Thank you for your help
Sincerely JFD






jf.dev...@gmail.com


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antivirus Avast.
https://www.avast.com/antivirus
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