<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>neurotech1</author><text>One thing about the RPV&amp;#x2F;Quadcopter debate that is rarely mentioned is the reason why they don&amp;#x27;t use ADS-B transponders.&lt;p&gt;The FAA requires ADS-B trasponders to have high accuracy GPS, and that pushes the cost to over $2,000 per device. It would be logical for the FAA to relax the GPS requirement slightly, so a cheap GPS module is sufficient to alert nearby aircraft of RPV activity over a certain altitude (eg. 200ft AGL) These RPV-grade ADS-B transponders could use a limited signal output, to avoid nuisance pop-ups from longer distances. The transponder Mode-S ID uniquely identifies the RPV.&lt;p&gt;It would be possible for a transponder to use an alternate channel frequency, similar to how many General Aviation aircraft use 978Mhz ADS-B. Even with an alternate RPV channel, the RPV operators would still be alerted to regular aircraft operations.</text><parent_chain></parent_chain></comment><story><title>U.S. Will Require Drones to Be Registered</title><url>http://www.nbcnews.com/news/us-news/u-s-will-require-drones-be-registered-n446266</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>MichaelApproved</author><text>I love the progress &lt;i&gt;drones&lt;/i&gt; have given our society. From surveying property to beautiful aerial views in a video to cool view of your kids soccer game to just plain fun. Drones are amazing.&lt;p&gt;You can buy a great drone and get amazing shots over and over for less than it would cost to hire a helicopter once.&lt;p&gt;However, they also pose a risk. I&amp;#x27;d favor a &lt;i&gt;simple&lt;/i&gt; registration process and clear cut rules that are not infringing on the use of drones. I&amp;#x27;d like to see the registration used mostly to enforce the rules and track a drone back to its owner.&lt;p&gt;Ideally, drones should also broadcast its ID, so it&amp;#x27;s easy for other pilots to know they&amp;#x27;re in the area and also allow LEO to ticket&amp;#x2F;fine for offences. Without a broadcasting ID, most of these rules will be hard to enforce.</text><parent_chain></parent_chain></comment><story><title>U.S. Will Require Drones to Be Registered</title><url>http://www.nbcnews.com/news/us-news/u-s-will-require-drones-be-registered-n446266</url></story>