NORCAL Frequency change?

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There seems to be a change in approach frequency into KSFO. The usual feeder of Boulder 133.95 now sometimes will pass to a 133.170. this may be a replacement or somehow addition to 120.35 Foster into RWY 28R. Any insights?
 

Skip_Wilson

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There seems to be a change in approach frequency into KSFO. The usual feeder of Boulder 133.95 now sometimes will pass to a 133.170. this may be a replacement or somehow addition to 120.35 Foster into RWY 28R. Any insights?
What direction are the planes coming from. Are the using the Diamond 5 arrival?
 

silagi

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It is being used by aircraft arriving on the DYAMD Five Arrival and landing on 28R.
 

Skip_Wilson

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It is being used by aircraft arriving on the DYAMD Five Arrival and landing on 28R.
I looked on AirNav and didn't see a Boulder on the standard arrivals list. I listen to the planes and can see most of them using DYAMD 5 as they transition to ARCHI. I've not heard the waypoint the OP was asking about. Just trying to help out a new person.
 

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I have noticed them on Bodega arrival which feeds into 133.95 Boulder Sector then often 135.65. On busy days they will separate right downwind traffic to 28R onto 120.35. However recently I noticed them using 133.17 rather than 120.35 for right down winds

I looked on AirNav and didn't see a Boulder on the standard arrivals list. I listen to the planes and can see most of them using DYAMD 5 as they transition to ARCHI. I've not heard the waypoint the OP was asking about. Just trying to help out a new person.
Boulder is a sector not arrival. I hear them on Bodega arrival

It is being used by aircraft arriving on the DYAMD Five Arrival and landing on 28R.
Ive only noticed on Bodega arrival.

Ive only noticed on Bodega arrival.
Actually I just noticed it on DYMAND as well. Seems like it replaced 120.35. wonder why?

Ive only noticed on Bodega arrival.
Actually I just noticed it on DYMAND as well. Seems like it replaced 120.35. wonder why

Funny thing I heard a controller he was about to send them to 120.35 cut him self short and said correction 133.17
 

silagi

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BOLDR is a way point on the BIG SUR Arrival
 

silagi

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133.17 is active again today.
 
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