I deal with quite a bit of repeater work for Hams. We have a very active DMR network in Indiana with dozens of repeaters on the network. We have learned the repeater folks are being told worst case scenarios. Our first repeater we put online we were told they needed a 3megx1meg constant connection. Once it was online and getting heavily used we are seeing spike of 512k, and this is a repeater that is very heavily used.
Attached is a usage graph of what is called a Cbridge server. This is basically a soft switch for these repeaters. This particular server has a couple dozen very active repeaters talking to it. So this is real world bandwidth usage with a couple dozen DMR repeaters talking to a single source. Justin Wilson (n2jsw) j...@mtin.net <mailto:j...@mtin.net> --- http://www.mtin.net <http://www.mtin.net/> Owner/CEO xISP Solutions- Consulting – Data Centers - Bandwidth http://www.midwest-ix.com <http://www.midwest-ix.com/> COO/Chairman > On Feb 18, 2016, at 9:34 AM, Ken Hohhof <af...@kwisp.com > <mailto:af...@kwisp.com>> wrote: > > We do that at a tower for a ham club voice repeater, they never use much > bandwidth, nowhere near 20x20, not even 1M. > > They are doing something different, or more likely just don't know how much > they need, or are just asking for the sky because why not? > > > -----Original Message----- From: Jerry Head > Sent: Thursday, February 18, 2016 8:04 AM > To: af@afmug.com <mailto:af@afmug.com> > Subject: [AFMUG] HAMSs and Internet > > I think a few of the list members out there are HAMs so I need some > advice please. > I support our local HAM group and have allowed them to place repeaters > on two of my towers > at no charge to their group. Now one of their members has asked for > Internet service at one of the > sites for HAM use. I have heard something about HAMs using the Internet > to "talk" so I guess this is > not unusual. > For me the kicker is that he is asking for 20x20Mbps service...I > certainly have the capacity but > that just seems excessive. > Opinions anyone? >
