Absolutely, We have CTM or CMM which has saved us much grief over the
past 10yrs.
I have had sites like Gino has and each one has its own unique grounding
issues but if looked at close enough youll find its something as simple
as a
poor ground back to the mains ground. Or no ground at all.
On 10/25/2015 03:39 PM, George Skorup wrote:
I have no doubt it's the SS clamping that's blowing the fuse. If there
was no fuse, I bet the SS would continue clamping and start smoking if
there's enough current to supply it. I don't know if it helps save
things, but I'm leaning towards yes. Just getting all of the radios on
the same DC bus seems to have helped quite a bit as well.
On 10/25/2015 12:51 PM, Ken Hohhof wrote:
Speaking of fuses, I know sometimes we get overcurrent trips on CTMs
and SyncInjectors and have to reset them. Very rare, but always
during storms. It is possible this is saving radios, I can't say for
sure.
-----Original Message----- From: George Skorup
Sent: Sunday, October 25, 2015 12:34 PM
To: [email protected]
Subject: Re: [AFMUG] Site Grounding - what we are doing wrong?
One thing we've been doing for several years now is a bonding wire up
the tower. I do not trust the tower steel/leg joints being low enough
resistance. Failure rate went way down. DC and fuses doesn't hurt
either.
On 10/25/2015 10:57 AM, Gino Villarini wrote:
So we are loosing radios left and right due to lightning!
Typical site setup:
Radios on tower grounded to tower
Shielded cable
Shielded patch panel - grounded
Regular cat5 jumpers
Wbmfg SS - grounded
Regular cat5 jumpers
Poe device
What's wrong?
