Portland to Salem
Metro Area Repeaters
147.040 + 100.0 hz
442.225 + 100.0 hz
(linked to 444.125)
147.380 + 100.0 hz
443.750 + 100.0 hz
(linked together fulltime)
444.125 + 100.0 hz
(linked to Sylvan 442.225)
444.400 + 100.0 hz
(linked South Saddle)
South Saddle Mountain
147.320 + 100.0 hz
442.325 + 100.0 hz
(linked to Skyline 444.400)
147.120 + 100.0 hz
444.225 + 100.0 hz
Redmond / Bend
147.040 + 114.8 hz
-linked to Hood and Eagle Butte
442.225 + 114.8hz
-linked to Hood and Cinder Butte
147.260 + 103.5.0 hz
147.020 + Open
145.330 - Open
We Still Need Your Help!
The Sylvan Hill KOIN TV transmitter tower 147.040 and 442.225 Antenna Fund drive
Thanks to all that have already
donated an extra $50 here and there, we have $960 dollar already
collected towards the total.
Thanks to all that have already donated an extra $50 here and there, we have $960 dollar already collected towards the total.
Here's the latest Thanksgiving update on the Emergency Antenna Fundraiser
Located high up on the KOIN TV transmitter tower lives the 147.040 and 442.225 repeater antennas.
Feeding those two repeater antennas are 250' runs of Andrews Heliax; the 040 machine uses a ½” run and 225 machine uses a 7/8ths run.
A few years ago the technical team began to notice some antenna system issues with both the 147.040 and 442.225 repeaters - this included high swrs and noticeable coverage problems as reported by many of you.
During 2014, the 147.040 system was having the most trouble and showing high SWR readings - sometimes lasting many weeks, only to clear up by itself. The team is pretty sure that this is indicative of water damage and the continuing corrosion that is occurring.
As most of you are already aware, the 442.225 antenna system failed earlier in the year as well and as of Turkey day, we have been unable to afford to fix the antenna system the way it oght to be fixed.
The 442.225 has been on the air this summer ONLY because the repeater is currently operating on a borrowed UHF commercial antenna which belongs to our site host.
On Oct 9th, ARRG hired our lowest bidder to install the new antenna ARRG members recently purchased (thank you) but once up the tower, the tower company found that the new antenna could not be hooked up to the old hardline, because it was water corroded and bad.
Currently, there is a brand new 440 antenna mounted in place on the KOIN tower but without a viable way to feed it, it's being wasted and unused.
For the first time in ARRG’s 38 year history, there is a good chance that ARRG will have to pull the plug on one of the systems busiest repeaters.
We shouldn't forget that our KOIN Sylvan Hill site is one of Portland's most popular repeater systems and without the 147.040 and 442.225 system operational, the following events will be adversely affected by the situation; Hood to Coast, Race for the Cure, Bridge Pedal and a dozen other events.
It should be noted that even
though our team initially did all the tower work at KOIN over a decade
ago, no Amateur Repeater techs or climbers are allowed on any commercial
broadcast towers anymore due to new commercial climbing regulations and
increased insurance liability insurance.
It should be noted that even though our team initially did all the tower work at KOIN over a decade ago, no Amateur Repeater techs or climbers are allowed on any commercial broadcast towers anymore due to new commercial climbing regulations and increased insurance liability insurance.
Please realize that those that serve you on the Board and Technical Team hates to ask any of you for additional financial support without first doing all we can do to raise as much money as we could, first, before publically asking for more.
As many of you have noticed over the summer, our team has been putting in overtime in a last minute push to raise money to help cover the KOIN situation. A small handful of your technical team worked their butts off this summer cleaning up estates, doing tower work, setting up and running swap tables at Mic & Key, Rickreall, OMSI Makers Faire and SEAPAC - all in an attempt to raise funds so we wouldn’t have to once again approach the general membership with our hands out.
Even with all these efforts, the team was only able to cover the cost of the new Telewave antenna and some of the October 9th install bill.
November 9th, 2015, the total bid came in at $6300.00 to fix 147.040 and
This will be a brand new coax run to 442.225 and to 147.040, plus a
spare backup dualband antenna in case either the 442.225 or the 147.040
antenna were to fail.
This will be a brand new coax run to 442.225 and to 147.040, plus a spare backup dualband antenna in case either the 442.225 or the 147.040 antenna were to fail.
Plus the backup
antenna is primary for the Hood to Coast race system. Without it, we can
no longer hold the HTC race on the KOIN system from the site. Instead
we'll be using crossband radios from multiple locations to feed the
system in a piece meal attempt.
Plus the backup antenna is primary for the Hood to Coast race system. Without it, we can no longer hold the HTC race on the KOIN system from the site. Instead we'll be using crossband radios from multiple locations to feed the system in a piece meal attempt.
Repairing it will cost thousands; not doing anything will eventually cause the team to take one or more off the air until which time as the team can afford the repairs in the future. This is just the reality of keeping our repeaters at a commercial broadcast site with all the strict new rules and regulations. This isn't just happening to ARRG, it's also occurring with many other groups that have repeaters housed at Radio or TV sites.
ARRG still needs your help!
Your donation is covered, we are a 501 (c)3 team and all donations are 100% tax deductible and we'll provide you an IRS approved receipt
Click in the donate button to securely donate any amount to the ARRG Antenna fund.
Your donation to ARRG (we are an official non-profit 501(C)3) is tax deductible.
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Please send a check to ARRG, Inc. PO Box 91213, Portland, OR. 97291
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