Hi Cinaed,
Which typical band you will be interested in
73s
Tony
-----Original Message-----
From: [email protected]
Sent: Monday, April 04, 2016 10:59 AM
To: [email protected]
Subject: HackRF-dev Digest, Vol 42, Issue 3
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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" <[email protected]>
To: <[email protected]>
Subject: [Hackrf-dev] More RF power
Message-ID: <2D596BD325DF41289EE7447084825F72@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 <[email protected]>
To: [email protected]
Subject: Re: [Hackrf-dev] More RF power
Message-ID: <[email protected]>
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
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------------------------------
Message: 3
Date: Sun, 3 Apr 2016 20:51:20 +0200
From: Andreas Hornig <[email protected]>
To: ERNEST MATEY <[email protected]>
Cc: [email protected], "[email protected] >>
hackrf-dev" <[email protected]>
Subject: Re: [Hackrf-dev] <DKIM> Re: TIME OF ARRIVAL OF CW SINGAL in
Nanoseconds with HackRf
Message-ID:
<cafqvuhy42h4wgosjydhqhuotjc0zxmugodrap9vtmaspkyn...@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 <[email protected]>
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: *[email protected]; [email protected] >>
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
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Message: 4
Date: Sun, 3 Apr 2016 13:21:51 -0700
From: Cinaed Simson <[email protected]>
To: [email protected]
Subject: Re: [Hackrf-dev] More RF power
Message-ID: <[email protected]>
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
------------------------------
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