Portable spectrum analyzers only capable of up to around 1600 MHz are also pretty cheap from Chinese sources now, if you want something that is not a radio but a general purpose unit you can attach to your own selection of yagis and dipoles. Would recommend something like this for people doing a lot of 900 MHz or getting into TVWS bands sub-1GHz.
https://www.aliexpress.com/item/HSA2016A-USB-interface-Handheld-Digital-spectrum-analyzer-with-portable-Field-Strength-Meter-spectrum-monitor/32845561598.html?spm=2114.search0104.3.22.4f734b70jM6PLT&ws_ab_test=searchweb0_0,searchweb201602_3_10152_10151_10065_10344_10130_10068_10324_10547_10342_10325_10546_10343_10340_10548_10341_10545_10696_10084_10083_10618_10307_10059_308_100031_10103_10624_10623_10622_10621_10620,searchweb201603_25,ppcSwitch_3&algo_expid=2b1215dc-9f68-4604-af7b-e7c417178cda-3&algo_pvid=2b1215dc-9f68-4604-af7b-e7c417178cda&transAbTest=ae803_1&priceBeautifyAB=0 On Tue, May 22, 2018 at 4:19 PM, Mathew Howard <mhoward...@gmail.com> wrote: > If you want a 900mhz spectrum analyzer, there are lots of options. You > could get a UBNT radio pretty cheap or Canopy FSK radio for next to nothing > that'll do the job just fine. > > On Mon, May 21, 2018 at 11:01 PM, Steve Jones <thatoneguyst...@gmail.com> > wrote: > >> Midpoints is what we try to get in these situations. If the customer is >> worth having, it's great, they handle the funny business with the midpoint >> property owner (usually they pay for that customers service) and it leaves >> you the ability to serve other customers on the other side of the tree line. >> >> Fyi Ubnt used to have a 900 mhz USB spectrum analyzer. I put mine in a >> small project box with 10' usb and small adapter to N on an 11dbi yagi with >> a screwdriver through the hole as a handle. Worked great for checking noise >> and tracing interference for under 60 bucks. Better than investing in 450 >> and it sitting on your shelf because the electric company wants to remotely >> rape people. >> >> On Mon, May 21, 2018, 1:52 PM Chuck McCown <ch...@wbmfg.com> wrote: >> >>> Maybe leapfrog with some back to back rockets or picos or whatever is >>> cheap at the treeline. Solar powered. >>> >>> *From:* Mathew Howard >>> *Sent:* Monday, May 21, 2018 12:49 PM >>> *To:* af >>> *Subject:* Re: [AFMUG] 8 mile link >>> >>> Yeah... but that only works if you have property access. >>> >>> On Mon, May 21, 2018 at 1:32 PM, Chuck McCown <ch...@wbmfg.com> wrote: >>> >>>> 700’ of cable and use as high capacity radios as you want. It really >>>> is not that far if you have property access. >>>> >>>> *From:* Eric Kuhnke >>>> *Sent:* Monday, May 21, 2018 11:46 AM >>>> *To:* af@afmug.com >>>> *Subject:* Re: [AFMUG] 8 mile link >>>> >>>> Probably worth getting a spectrum analyzer that has 900 in its range, >>>> and a 900 yagi, before spending the $2700+ on a 450i 900 AP and antenna. >>>> >>>> For the original poster's problem I would try, if possible, moving up >>>> to 3' dishes on both ends, and ac based radios. And using a 10 MHz channel. >>>> Might have a better chance of getting a signal like -61 (not -71) and >>>> through "some" trees. >>>> >>>> On Mon, May 21, 2018 at 10:31 AM, Mathew Howard <mhoward...@gmail.com> >>>> wrote: >>>> >>>>> The problem with 900mhz, is that you never know if it's actually going >>>>> to work in any given area until you try it. If there are 900mhz smart >>>>> meters around, don't even bother... but even if there aren't, 900mhz can >>>>> be >>>>> pretty unpredictable in my experience. If you do go 900mhz, PTP450 is >>>>> definitely the best option. >>>>> >>>>> On Mon, May 21, 2018 at 11:59 AM, Erich Kaiser < >>>>> er...@northcentraltower.com> wrote: >>>>> >>>>>> 900 PTP 450 with KP Performance Antennas, I run mine 3 miles >>>>>> completely NLOS on 7 MHZ and it runs fine to my house. During heavy rain >>>>>> and through heavy foliage (Currently) this is what I am getting >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Mon, May 21, 2018 at 11:53 AM, Dave <dmilho...@wletc.com> wrote: >>>>>> >>>>>>> Yeah, The 450i 900 system would definately do the trick >>>>>>> How much bandwidth do you need? >>>>>>> The 900 on a 10Mhz channel we see around 35Mbs in a noisy >>>>>>> environment on 8x/4xmimoB rate. >>>>>>> If your doing ptp with it then open it up to 20Mhz wide and bang on. >>>>>>> >>>>>>> >>>>>>> On 05/21/2018 10:49 AM, Travis Johnson wrote: >>>>>>> >>>>>>> Ok. I'll give those a try and see what happens. Thanks. >>>>>>> >>>>>>> Travis >>>>>>> >>>>>>> >>>>>>> On 5/21/2018 9:37 AM, Mathew Howard wrote: >>>>>>> >>>>>>> You could very likely get a bit more speed out of that by going to >>>>>>> the new AC radios... my guess is that the airFibers would be even >>>>>>> better, >>>>>>> but I haven't used any of those in the 2.4ghz variety. >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Mon, May 21, 2018 at 10:31 AM, Travis Johnson <t...@ida.net> >>>>>>> wrote: >>>>>>> >>>>>>>> The current signal level is -71. I have a 2ft dish on each side. >>>>>>>> >>>>>>>> Travis >>>>>>>> >>>>>>>> >>>>>>>> On 5/21/2018 9:15 AM, Mathew Howard wrote: >>>>>>>> >>>>>>>> Yeah... 900mhz PTP 450 is probably the best option. >>>>>>>> >>>>>>>> What kind of signal level do you get with the 2.4ghz radios? you >>>>>>>> could probably get a bit more out of it by going to airFiber 2x or >>>>>>>> Rocket >>>>>>>> 2AC radios... and maybe a bigger dish. >>>>>>>> >>>>>>>> On Mon, May 21, 2018 at 10:09 AM, Jeff Broadwick - Lists < >>>>>>>> jeffl...@att.net> wrote: >>>>>>>> >>>>>>>>> 900 PTP 450 from Cambium >>>>>>>>> >>>>>>>>> Jeff Broadwick >>>>>>>>> CTIconnect >>>>>>>>> 312-205-2519 Office >>>>>>>>> 574-220-7826 Cell >>>>>>>>> jbroadw...@cticonnect.com >>>>>>>>> >>>>>>>>> > On May 21, 2018, at 11:05 AM, Travis Johnson <t...@ida.net> >>>>>>>>> wrote: >>>>>>>>> > >>>>>>>>> > Hi, >>>>>>>>> > >>>>>>>>> > I'm looking for suggestions for an 8 mile link that will be >>>>>>>>> shooting through a single wall of trees about 1/8 mile from one end >>>>>>>>> of the >>>>>>>>> link. Currently using 2.4ghz Ubnt radios. Works great during the >>>>>>>>> winter, >>>>>>>>> but once the trees fill back in, the link drops to about 5Mbps actual >>>>>>>>> throughput. Would be nice to get 20Mbps. >>>>>>>>> > >>>>>>>>> > Any suggestions? The trees are 80ft tall, so putting up a 100ft >>>>>>>>> tower at a residence is not really an option. The other side is on >>>>>>>>> top of a >>>>>>>>> 1000ft tall hill. >>>>>>>>> > >>>>>>>>> > Travis >>>>>>>>> > >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>> >>> >> >
