# ARRL FMT with GNU Radio

**URL:** <https://www.ruby-forum.com/t/arrl-fmt-with-gnu-radio/233076>\
**Category:** GNU Radio\
**Created:** [November 15, 2014, 8:31pm UTC](https://www.ruby-forum.com/t/arrl-fmt-with-gnu-radio/233076 "2014-11-15T20:31:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [November 15, 2014, 8:31pm UTC](https://www.ruby-forum.com/t/arrl-fmt-with-gnu-radio/233076/1 "2014-11-15T20:31:41Z")

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I made a video of the ARRL Frequency Measurement Test I did the other  
night  
using the X310, GNU Radio, and Baudline. It covers in detail the  
flow-graph  
operation. I measured sub-Hz accuracy, but feel I could have done  
better.  
I’ll have to do a better job of characterizing the frequency and  
sampling  
offsets next time.

[![](https://img.youtube.com/vi/_brT8AElZi0/maxresdefault.jpg "ARRL November 2014 Frequency Measurement Test with SDR") ](https://www.youtube.com/watch?v=_brT8AElZi0)

> **[GitHub - madengr/fmt: GNU Radio project for ARRL Frequency Measurement Test](https://github.com/madengr/fmt)**
>
> GNU Radio project for ARRL Frequency Measurement Test - GitHub - madengr/fmt: GNU Radio project for ARRL Frequency Measurement Test

Thanks,  
Lou  
KD4HSO

–  
View this message in context:  
[http://gnuradio.4.n7.nabble.com/ARRL-FMT-with-GNU-Radio-tp51330.html](http://gnuradio.4.n7.nabble.com/ARRL-FMT-with-GNU-Radio-tp51330.html)  
Sent from the GnuRadio mailing list archive at [Nabble.com](http://Nabble.com).