The astute of you would have noticed updates had stopped for about 2-3 months, they've just resumed after I've rewritten the backend, which will now allow filtering from a new front end I hope to release shortly. There's an issue where some of the sites (Voda 700Mhz) aren't being correctly identified as 4G, that'll be resolved in the next update that will happen this evening, after the newest RSM database release.
Will be launching the new version of GIS Geek shortly, focusing on Cell Tower position and frequency filtering
RSM provide an application called Spectrum Search Lite free to download here. The application is designed to be used offline and as such RSM periodically update a database file for use inside that application, and make it available for download at the same link. This forms the basis for all of our RSM layers.
The key elements of all of the data displayed have had zero manipulation. The points are mapped using NZMG2000 coordinates found in the RSM database. All information displayed with an associated point is a straight extract from that database, however, this should never be used as an official guide. I provide the RSM licence number with every data point. All details should be manually confirmed by using the RSM SMART page and this licence number.
The main point here is what is being mapped are licences for usage of spectrum. At this stage there isn't an easy way to tell if the site physically exist or not based on the information available from RSM. A key example of this is LTE sites. At the time of writing there are multiple Spark LTE sites listed, however none are live to the public.
Where the provider, lat and long have been the same, I've combined the information into one "cell site" so it's easy to get a closer picture to what frequencies should be available in your area. I've also added the ability to toggle network providers, and if it's warranted in future can do the same for frequencies.
There are currently 6 frequency bands in use in New Zealand for 2G/3G/4G as at 2014.
1: Currently only operating on the West Coast of the South Island on a trial basis by Vodafone. See here.
2: Vodafone used to operate 2G GSM on 1800, but have since announced their 4G LTE will be on that frequency. We assume all of the Vodafone licences that we plot on 1800MHz are actually 4G LTE licences due to the fact none of the licences existed before December 2012.
3: Spark have announced they're rolling out LTE on 1800MHz, but the towers plotted may not have LTE hardware installed, or enabled.
4: Spark are operating a trial on 2600MHz frequencies in parts of Auckland. See here.
At last count, there were 40,945 licences in the RSM database. The possibilities here are relatively endless. I'm going to look at exploring how difficult it would be to plot some point-to-point links, possibly starting with any supporting the big three cell providers networks, simply because they're easy to single out. If anyone has any other ideas of what would be handy/cool from this data, hit Contact above and let me know.
The information that makes up the Chorus layers is sourced from their Network Build Update page, specifically their "Distribution cabinet information notice" section. These layers were generated from data published May-2013 by Chorus. While the data is from official sources, it is possible I have introduced errors while converting the coordinates to a format Google Maps understands.