I'd like to throw our current problem out at everyone for opinions - let me
know what you think please.
Currently we have a three sector system. Lets call them .5, .6, and .7
.6 seems to operate flawlessly without any issues.
out of .5 and .7 only one will transmit at a time.
When we first purchased this system (February) all three sectors transmitted
but they would also lock up several times a month requiring a reboot. The
power supply in use, in my opinion, was a "home brew" power supply that looked
like four or five computer power supplies run together. I have since learned
(from someone involved in the initial installation) it was a FM broadcast power
supply. Connect more power cords and you get more amps. Only two of the four
power supply cords were really required but for a while all four were used.
One "main" wire ran out to surge protectors where the current carrying wires
split out into wires going to each individual radio.
The only way to reboot one was to reboot the entire power supply which rebooted
the 3 radios and the ASN.
Fast forward a bit - the consultant (who is helping us build a radius server to
move to integrate with powercode and intergrate with our network) also got with
telrad and we determined the units were running firmware that was built for the
LTE conversion but was not recommended for production use.
Accidentally at one point the wrong firmware was loaded and rejected by the
base stations (they would not even boot with it) but telrad told the consultant
it was the wrong firmware and provided the correct firmware. This is the day
that transmit problem started with .5 or .7
At the end of that day stabiliity had returned to the platform (no more random
lockups) but one of those two units would no longer transmit.
Initially they would not get a gps lock, or only one or the other would get a
gps lock. We have tried slaving to the gps of the working unit (.6) but the
problem still existed in one way or another.
The consultant suggested we purchase a new power supply - one that could
monitor amps and current - and we did so. After installing it we still had
the same problem - - and we also found even if we disconnected all of the wires
to a basestation that base station would still power up (but would not
necessarily transmit) via the ground wire. The next step the consultant made
was to replace all the power wires on the tower with factory made power wires.
We did that yesterday - but there is still no change.
I have suggested we engage telrad directly on this again (we are now one full
month nearly with at least one of the three sectors down, we've lost probably
40 of 120 customers on the tower to disconnection - although I feel once
everything is stabailized they will come back, the other options in the town
are horrible)
I understand this to be an extremely odd issue ; any thoughts?
In our internal camp some of us are thinking we may be using overlapping
frequencies - but I feel sure we have checked for that.
I am sure we will check again. :)
Jay Fuller
Cyber Broadband Inc
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