During the late 1970's , KUOW Seattle used to run a 10 watt translator from the West Hills on 103.9 . It caused some interference to then KOMS Lebanon.

Anyone remember that one? What was the reason behind that arrangement?

(I know for many years there was a TV translator on Channel 4 in Vancouver, Washington to provide WA-state educational TV content to Clark County -- very weak signal. It's long gone...)

BTW, KUOW is relayed on the Canadian small-dish provider Bell ExpressVu. Unfortunately there's a routing error that causes KUOW to drop out when KCPQ-TV has to be substituted with Vancouver carriage when there is content duplication. Subscribers might be listening to some NPR show then get switched in mid-stream to Maury Povich audio. It's apparently some piggy backing mixup of the Seattle feeds.

K280AC 103.9 Portland broadcast from atop the St. Johns Bridge rebroadcasting KUOW Seattle. K280AC signed on the air between November 6 & 14th, 1977. City of license moved to Vancouver and transmitter site moved to Portland's West Hills. Off the air in 1984.

K04EI channel 4 Vancouver School District signed on the air in July 1968 from Portland's West Hills. K04EI rebroadcast KPEC-TV channel 56 Lakewood Center (Tacoma) Clover Park School District, via over the air pickup from K70DT channel 70 Centralia on Mt. Boisfort aka Baw-Faw Mtn.

The St. John's bridge?? That has got to be one of the most interesting locations for a broadcast transmitter!

I'm also suprised that at K04EI, they were able to pull in the signal from a Centralia UHF translator from Vancouver!

K70DT had about 5kw power.