When you say low speed, how low? Like telemetry/SCADA speed? There are FHSS systems intended for long links in 900 and 2.4, Jaime would be the expert. I’ve also seen power companies and railroads do low speed links in licensed 900 MHz, usually with a paraflector at each end.
From: Dan Petermann Sent: Wednesday, May 06, 2015 3:13 PM To: [email protected] Subject: Re: [AFMUG] 65 mile link 9402’ at one end and 7271’ at the other. Mountainous with no trees almost no vegetation. On May 6, 2015, at 1:09 PM, Chuck McCown <[email protected]> wrote: Good point, what does the path look like? If it is hill country or mountains, high to low etc diversity may not be needed. But if the path is flat at essentially the same elevation, it may be needed. If the path is flat, same elevation over smooth stuff or water diversity will most likely be needed. From: Colin Stanners Sent: Wednesday, May 06, 2015 12:57 PM To: [email protected] Subject: Re: [AFMUG] 65 mile link You need spatial diversity for a link that far, and a good air protocol so PTP400 with one 4ft or larger dish at one end and two 4ft dishes (separated by 50ft? Link planner would tell) at the other. On May 6, 2015 12:15 PM, "Dan Petermann" <[email protected]> wrote: I have a customer that needs a low speed very long link. Link is 64 miles, 2200’ elevation change. I’m looking at a Last Mile Gear connectorized PTP100. Reliability is definitely needed. Any other radios you guys would recommend? 900MHz is out due to noise floor.
