bcoleman1
Member
Hi All, Hope all is well.
We have 2 Repeater units in Ireland at a Tower mast site. ( Co. Louth)
A digital broadcast signal antennae was installed on frequency 175mhz on the same Tower mast early April last.
Unfortunately, the RFI knocked /de-sensitised, out our radio mesh repeater which was on its own freq and we restored it by installing a cavity filter.
However, we have a legacy unidirectional alarm repeater named Ateargo ( Italian vendor). It is on 167 TX/transmit freq. and 172 RX/Receive freq. that got knocked offline as well and 20 odd RMA units are missing daily timer test since early April.
I found out the name of the Co. whose client installed the digital radio broadcast signal and he kindly turned it off one night for me , however it made no difference, still same 25-26 missing RMA units.
Alarm rma units meant to receive into the Tower site in Louth first then transmit to Dublin Ateargo Receiver before transmit over ip link to NOC/ARC Monitoring centre in Belfast.
I have ran a bird watt meter model 43 on original Ateargo repeater at the high site/Louth and SWR readings are good.
I have swapped out the power supply and battery on it too. Kenwood unit.
by the way we tried installing even a dual cavity filter on the Ateargo repeater but it made no difference either.
I also tried setting up a test environment of spare Ateargo repeater unit and ateargo rma test radio however could not get any alarms in from a house attic
in Monasterboice which is at 1400m height - the highest point between Mourne mountains and Dublin mountains.
Any ideas what good be causing the problem,/advice greatly appreciated please/
Thank you.
We have 2 Repeater units in Ireland at a Tower mast site. ( Co. Louth)
A digital broadcast signal antennae was installed on frequency 175mhz on the same Tower mast early April last.
Unfortunately, the RFI knocked /de-sensitised, out our radio mesh repeater which was on its own freq and we restored it by installing a cavity filter.
However, we have a legacy unidirectional alarm repeater named Ateargo ( Italian vendor). It is on 167 TX/transmit freq. and 172 RX/Receive freq. that got knocked offline as well and 20 odd RMA units are missing daily timer test since early April.
I found out the name of the Co. whose client installed the digital radio broadcast signal and he kindly turned it off one night for me , however it made no difference, still same 25-26 missing RMA units.
Alarm rma units meant to receive into the Tower site in Louth first then transmit to Dublin Ateargo Receiver before transmit over ip link to NOC/ARC Monitoring centre in Belfast.
I have ran a bird watt meter model 43 on original Ateargo repeater at the high site/Louth and SWR readings are good.
I have swapped out the power supply and battery on it too. Kenwood unit.
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I also tried setting up a test environment of spare Ateargo repeater unit and ateargo rma test radio however could not get any alarms in from a house attic
in Monasterboice which is at 1400m height - the highest point between Mourne mountains and Dublin mountains.
Any ideas what good be causing the problem,/advice greatly appreciated please/
Thank you.
