[NLRS] HackRF One SDR Xcvrnsmit

[Tony Emanuele]

Doug,

I stopped by the HackRF booth at the Dayton Hamvention and had a few
questions for the young engineer manning the booth.   My thought was that
the product might make for a reasonably priced piece of test gear for the
shack/lab and so my questions were of that nature.  On the TX side it was
pointed out that there is no output filtering (in order to keep the price
reasonable) so that harmonics were down only 10 dB or so.  On the RX side he
mentioned that the receive performance starts to fall off at about 3 GHz
because of the board material.  Band specific filters and a preamp will
likely result in acceptable performance for my application.  I have yet to
make the purchase.

73,

Tony WA8RJF

-----Original Message-----
From: NLRS [mailto:nlrs-bounces at mailman.qth.net] On Behalf Of Doug Reed
Sent: Monday, May 30, 2016 1:41 AM
To: nlrs <nlrs at mailman.qth.net>
Subject: [NLRS] HackRF One SDR Xcvrnsmit



I'm wondering if anyone in the group has tried using a HackRF One as a
poor-man's microwave radio? It is spec'ed from 5MHz to 6GHz receive and
transmit as a SDR device. The TX side is barely 0dBm to -10dBm, lowest in
the high GHz range, but that is nothing a small chip amp can't improve. It
is an I/Q device which makes it "all mode" with the right software. The main
negative is that it is only an 8-bit device so it has less than 50dB dynamic
range which limits spectral purity.
It wouldn't be a high performance system, but it really sounds like the low
cost option to play with. But there is so much happening in SDR that I
needed to ask and to keep looking.....
<http://www.nooelec.com/store/hackrf-one.html>

In a similar class is the Lime SDR radio project. This will not be delivered
until the fall but it beats the HackRF because it has a 12-bit I/Q data
handling. There is a comparison chart.
<https://www.crowdsupply.com/lime-micro/limesdr>

73, Doug Reed, N0NAS.
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