# RF drive test app using GR

**URL:** <https://www.ruby-forum.com/t/rf-drive-test-app-using-gr/231460>\
**Category:** GNU Radio\
**Created:** [August 9, 2014, 5:17am UTC](https://www.ruby-forum.com/t/rf-drive-test-app-using-gr/231460 "2014-08-09T05:17:46Z")\
**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:** [August 9, 2014, 5:17am UTC](https://www.ruby-forum.com/t/rf-drive-test-app-using-gr/231460/1 "2014-08-09T05:17:46Z")

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Thought I’d share an RF drive test app I wrote using GR. It decimates  
WBFM  
channel power down to 1 second then logs that along with GPS NMEA data  
from  
the B200 GPSDO. The post processing takes the power and generates a  
color  
map, then plots the lat/lon points to a Google Map, with labels for  
power  
and altitude. I may switch it to GeoJason maps as that may work nicer  
for  
logging multiple channels at once. What I’d really like to do is to  
have it  
transmit and key a repeater, then log the power, but I don’t think  
repeater  
operators would tolerate the kerchunking.

> **[GitHub - madengr/drive\_test: RF drive test application using Ettus USRP +...](https://github.com/madengr/drive_test)**
>
> RF drive test application using Ettus USRP + GPSDO, GNU Radio, and Google Maps - GitHub - madengr/drive\_test: RF drive test application using Ettus USRP + GPSDO, GNU Radio, and Google Maps

Thanks,  
Lou  
KD4HSO

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