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Wednesday, August 18, 2010
POTUS Visit to Seattle
I was unable to make the trip up to Seattle to monitor the arrival of President Obama on Tuesday, but I did get some reports from folks on the ground there.
Here is what was reported active near Boeing Field, where Air Force 1 arrived;
164.8875 MHz, N001 - OSCAR
165.3750 MHz, N001 - CHARLIE
167.0125 MHz, N001
167.0375 MHz, N001
169.5125 MHz, N001 - WHCA SIERRA
I still have not come up with a standard "name" for the 167.0125 and 167.0375 channels that have been used by the Secret Service for a few years now. They are sometime referred to as POTUS protection detail channels, but they are often used where the POTUS or VPOTUS are not present.
Also, 165,7625 MHz, P25 with a NAC of N167 was reported active at Boeing Field. Unknown who exactly this might have been.
In addition to the conventional channels, there was some speculation as to who might be using the IWN, the federal VHF trunked radio system in the Seattle area. Locals set up to monitor the system activity reported nothing unusual on the trunking sites they were monitoring, but the IWN system very rarely seems to simulcast activity on sites other than the ones the users are affiliated with. Also, although the local Seattle field office of the Secret Service undoubtedly has IWN radios, it's doubtful the traveling POTUS protective detail has access to the IWN on these types of trips.
I did get to hear the departure of the Oregon Air Guard F-15's sent to intercept the incursion of the restricted airspace near Seattle. The alert flight (callsign ROCK) was launched from PDX airport and apparently went super-sonic to get up to there in a hurry, causing all kinds of phone calls about sonic booms and explosions!