I see your question has been answered.
I'm not a geocacher, & I live near this city: 48 25.43, - 123 21.56
so, far from you, but I have relatives near there.
BTW, that format, degree plus decimal minute, works but is a pain to convert.
Most maps use just the decimal degree, e.g. 48.4222; or degree, minute, second.
Please tell the site.
Next problem. The cache description uses the terms “street number” & “house number”.
Is there a difference? With my limited resources, I could only find the latter.
My checksum came to 163, resulting in a negative number for G, obviously incorrect.
I have a wrong number for one of the above “terms”. Maybe someone built a new house since the cache was placed.
Simple logic dictates which numbers are odd or even.
AB is a given, 29, as is EF, 34, & I'm fairly certain D = 1.
The bits past the decimal point are the uncertainty.
The closest I can get is -43 29.717, 172 34.303 which puts it in Nepal Reserve.
Similar numbers, a few points south – on the street, Nepal Place.
If you can send me your numbers, A to P, perhaps we can crack this.
Have you toured the neighbourhood?
Your mission, should you choose to accept it ...
http://www.youtube.com/watch?v=F5HMWUBmhS8
Don't go to the airport, or Washington. (-;