-30.39 dB FSL -40.41 dB urban area FSL report says 42db on antennas and -27.5 dB so if I adjust mine I am -28.39dB. what a few dB's among friends?
Jaime Solorza Wireless Systems Architect 915-861-1390 On Wed, Mar 4, 2015 at 10:03 AM, Hardy, Tim <tha...@comsearch.com> wrote: > So, assuming 2’ antennas at 38.7 dBi, your RSLs should be around -33.8 > dBm (+/1 2.0 dB) > > > > *From:* Af [mailto:af-boun...@afmug.com] *On Behalf Of *Chuck McCown > *Sent:* Wednesday, March 04, 2015 11:54 AM > *To:* af@afmug.com > *Subject:* Re: [AFMUG] Smart guys on lost question > > > > I have never had problems using simple free space path loss for these > frequencies. > > I doubt there is significant cable or waveguide loss. > > Dragonwaves mount to the antenna and the gain of the antenna is at the > interface. > > > > 96.6 + 20logD + 20log F Where F & D are GHz and Miles. > > > > 96.6 + 10.5 + 25.1 = 132.2 dB > > > > *From:* Jaime Solorza <losguyswirel...@gmail.com> > > *Sent:* Wednesday, March 04, 2015 9:31 AM > > *To:* Animal Farm <af@afmug.com> > > *Subject:* [AFMUG] Smart guys on lost question > > > > Hello Smart Dudes on the list: > > Running a 3.348 mile path for 18 Ghz Dragonwave link to compare what > someone else came up with. I am wondering if they used just unfaded free > space loss calculation and coming up with a figure 10dB better than mine, > I am using unfaded urban area free space loss for mime. I use just free > space loss we are within 3db of each other. I added 1 db of cable loss > since I do not know if waveguide was used or many other details. I will > get all that information on site. > > I have always engineered paths on conservative side since the start. > > > > What are your thoughts Hobson? > > > > Thx > > > > > > Jaime Solorza > > Wireless Systems Architect > > 915-861-1390 >
