[Hackrf-dev] tramsmit simple file

[Cinaed Simson]

Note, be careful of the rf_gain settings.

And you need give the absolute path the file in the File block.

I have a tuned antenna and good cabling.

If there's an imbalance at the antenna for whatever reason, current will
flow down the outside the coaxial sheath.

I place a current choke on the coaxial cable at the antenna end.

The choke won't impact the currents flowing inside the coaxial cable.

The carrier frequency of 172.025 MHz is the same frequency which my
BeagleBone Black transmits when it's powered up.

I'm mot sure if it's a filter resonating or a bug.

I believe the 170 MHz band is reserved for government and wireless
microphones.

On 02/09/2016 07:29 PM, McDonald, J Douglas wrote:
> I managed to transmit FM radio, finally.
> 
> Here's whta I really need: 
> 
> I have a file, arbitrary length, of 16 bit signed integers .  This is assumed sampled at 
> 20MHz, that is, bandwidth  0 to 10MHz. I could make it a mono wave file, but no header is easier.
> 
> I want to read it into  grc  and change it  (presumably by multiplying by a complex sine wave)  to a stream of complex numbers  sampled at 10 MHz,  presumably from -5 to 5 MHz.  This then gets fed to an Osmocom sink to HArckRF which transmits it centered on some high frequency. 
> 
> The only thing I don't know how to do is read in a plain (non-wav) file at 10 MHZ and
> get it to a complex stream at half the sample rate centered at zero. 
> 
> How do I do these two things?
> _______________________________________________
> HackRF-dev mailing list
> HackRF-dev at greatscottgadgets.com
> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
> 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: file-transmit.grc
Type: text/xml
Size: 27230 bytes
Desc: not available
URL: <https://pairlist9.pair.net/pipermail/hackrf-dev/attachments/20160210/f9404042/attachment.xml>