[Hackrf-dev] HackRF-dev Digest, Vol 42, Issue 3

[Tony Hagen]

Hi Cinaed,

Which typical band you will be interested in



73s
Tony
-----Original Message----- 
From: hackrf-dev-request at greatscottgadgets.com
Sent: Monday, April 04, 2016 10:59 AM
To: hackrf-dev at greatscottgadgets.com
Subject: HackRF-dev Digest, Vol 42, Issue 3

Send HackRF-dev mailing list submissions to
hackrf-dev at greatscottgadgets.com

To subscribe or unsubscribe via the World Wide Web, visit
https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
or, via email, send a message with subject or body 'help' to
hackrf-dev-request at greatscottgadgets.com

You can reach the person managing the list at
hackrf-dev-owner at greatscottgadgets.com

When replying, please edit your Subject line so it is more specific
than "Re: Contents of HackRF-dev digest..."


Today's Topics:

   1. More RF power (Tony Hagen)
   2. Re: More RF power (Marc P?quignot)
   3. Re: <DKIM> Re: TIME OF ARRIVAL OF CW SINGAL in Nanoseconds
      with HackRf (Andreas Hornig)
   4. Re: More RF power (Cinaed Simson)


----------------------------------------------------------------------

Message: 1
Date: Sun, 3 Apr 2016 15:31:00 +0530
From: "Tony Hagen" <prosdr at gmail.com>
To: <hackrf-dev at greatscottgadgets.com>
Subject: [Hackrf-dev] More RF power
Message-ID: <2D596BD325DF41289EE7447084825F72 at cedalabz>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original

Hi,

In the past post I found quite a good amount of the hackrf user want to
transmit with more RF power.

If you all can discuss your wish list of the band/frequency I can build
respective low cost RF amplifier of 1, 2, 5 watts or more

Please let me know your interest on this



73s
Tony



------------------------------

Message: 2
Date: Sun, 3 Apr 2016 15:08:46 +0200
From: Marc P?quignot <marc.pequignot at gmail.com>
To: hackrf-dev at greatscottgadgets.com
Subject: Re: [Hackrf-dev] More RF power
Message-ID: <570115DE.8070108 at gmail.com>
Content-Type: text/plain; charset=windows-1252; format=flowed

Hi,

It will be at the limit. However a Ham HF band may be interesting.
A couple of watts is enough.

73s

F6DNH


Le 03/04/2016 12:01, Tony Hagen a ?crit :
> Hi,
>
> In the past post I found quite a good amount of the hackrf user want
> to transmit with more RF power.
>
> If you all can discuss your wish list of the band/frequency I can
> build respective low cost RF amplifier of 1, 2, 5 watts or more
>
> Please let me know your interest on this
>
>
>
> 73s
> Tony
>
> _______________________________________________
> HackRF-dev mailing list
> HackRF-dev at greatscottgadgets.com
> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
>



------------------------------

Message: 3
Date: Sun, 3 Apr 2016 20:51:20 +0200
From: Andreas Hornig <andreas.hornig at aerospaceresearch.net>
To: ERNEST MATEY <ernestmatey310 at gmail.com>
Cc: emmanuel.fuste at laposte.net,  "hackrf-dev at greatscottgadgets.com >>
hackrf-dev" <hackrf-dev at greatscottgadgets.com>
Subject: Re: [Hackrf-dev] <DKIM> Re: TIME OF ARRIVAL OF CW SINGAL in
Nanoseconds with HackRf
Message-ID:
<CAFqvUhy42H4wGosjYDhQhuOTJc0zXMugOdrap9VTmAsPkyNcmw at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hi Ernest,

may I ask what kind of appraoch you are using? 30 meters acurracy will be
sporty.

Andreas

On Sat, Apr 2, 2016 at 7:02 AM, ERNEST MATEY <ernestmatey310 at gmail.com>
wrote:

> Hi Andreas,
>
> Thank you very much for reply and check of website.
> Precision for Bird Project I aim is 30 meters.
>
> Thank you for your help and suggestions are greatly welcomed for CW
> arrival detection and time measurement.
>
> Best Regards
> Ernest.
>
> Sent from my BlackBerry 10 smartphone.
> *From: *Andreas Hornig
> *Sent: *Saturday, April 2, 2016 1:16 AM
> *To: *ERNEST MATEY
> *Cc: *emmanuel.fuste at laposte.net; hackrf-dev at greatscottgadgets.com >>
> hackrf-dev
> *Subject: *Re: [Hackrf-dev] <DKIM> Re: TIME OF ARRIVAL OF CW SINGAL in
> Nanoseconds with HackRf
>
> Hi Ernest,
>
> the first question for me is, what kind of precision of orbit
> position/parameters do you want to achieve for your BIRD satellite[0].
> I might perhaps help, because I am doing the same thing for my PhD workbut
> not with GnuRadio and HackRF.
>
> And yes, my approach is DSP heavy as others told here already, and I am
> working on this for 3 years now (started as a side project). :D
>
> Andreas
>
> [0] http://birds.ele.kyutech.ac.jp/mrErnest.html
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<https://pairlist9.pair.net/pipermail/hackrf-dev/attachments/20160403/f5f863cf/attachment-0001.html>

------------------------------

Message: 4
Date: Sun, 3 Apr 2016 13:21:51 -0700
From: Cinaed Simson <cinaed.simson at gmail.com>
To: hackrf-dev at greatscottgadgets.com
Subject: Re: [Hackrf-dev] More RF power
Message-ID: <57017B5F.6000402 at GMail.COM>
Content-Type: text/plain; charset=windows-1252

On 04/03/2016 03:01 AM, Tony Hagen wrote:
> Hi,
>
> In the past post I found quite a good amount of the hackrf user want to
> transmit with more RF power.
>
> If you all can discuss your wish list of the band/frequency I can build
> respective low cost RF amplifier of 1, 2, 5 watts or more
>
> Please let me know your interest on this

Hmm, at 1 W a VSWR over 1.22:1 may smoke the RF amplifier on the HackRF
- assuming roughly a 10 mW reflection smokes it - and ignoring all the
losses in the system.

How about low power amplifiers (100-500 mW) - with a maximum RF_IN of at
least 20 dBm?

How about low power band pass filters - with a maximum RF_IN of at least
20 dBm for the HackRF, Ubertooth and Yardstick?

-- Cinaed


------------------------------

Subject: Digest Footer

_______________________________________________
HackRF-dev mailing list
HackRF-dev at greatscottgadgets.com
https://pairlist9.pair.net/mailman/listinfo/hackrf-dev


------------------------------

End of HackRF-dev Digest, Vol 42, Issue 3
*****************************************