We had an RB800 with a 604 daughterboard in the shown enclosure, a new employee with very cold hands accidently broke some of the pins off and rendered the daughterboard useless (btw those should be a ribbon instead of the elongated pins). We didnt have any instock (not sure why), but needed to come up with a fast fix. Had a rb800 on the truck, installed it using the same poe ethernet run as the first board splicing from one dc barrel to the other, the power supply is a 58v 1amp (we compensated for the voltage loss in the 300ft poe run.
We went from what could have been an extended outage to a 20min fix.
Now my question is, any major reasons this cant be a permanent solution for this one instance?
No but constructive criticism about the use of long link leads ( over 1 meters +) even with very low loss RF cable I would expect between 2-3db actual on site connection loss, put another way a loss of up to 50%, It may look pretty impressive to have all the RF leads neatly secured and with extra enclosures on to mast but I would like to have max power from any AP or PTP not wasted in connection loses.
So you are suggesting in this instance 8 POE runs, 8 Enclosures, 8 rb411s? I’ve wondered if people usually use that method or the method shown above. This is really the only site with longer LMR400 runs, most of our sites are just a few feet for lmr Runs.
So you are suggesting in this instance 8 POE runs, 8 Enclosures, 8 rb411s? I’ve wondered if people usually use that method or the method shown above. This is really the only site with longer LMR400 runs, most of our sites are just a few feet for lmr Runs.
Yes - Anyone with RF transmission experience will know the importance of RF load on to a radio card and any extra RF lead will alter the impedance of the RF load and result in reduced radiated power from the antenna.
I mentioned my solution to this in another post with integrated enclosures another issue you are almost certain to encounter is with the radio cards (8) so close together is interference because every radio after transmitting will go in to receive mode and during this cycle it will encounter interference from the other cards which will probably be transmitting at that time and it is a safe bet that the more heavily used the radio cards the more interference encountered unless you have them synced and even if they were synced you would not have maximum throughtput from each radio card.
Thanks for the info. These are all things we are aware of, but until recently integrated enclosures for omnis, sectors, and high gain parabolics have been almost non-exisent in the marketplace. If their was one wisp request it would be a well thought out line of antennas with an enclosure suitable for a few different router boards that is connectorized to the ant. Jirous is making some, but they still have a wYs togo.
Rf wise I am very familiar with the obstacles preseneted here,but powering boards like this is something I wondered if anyone else has done with longterm success.
