Table Mtn over by E-burg is the classic easy to access spot for camping and radio. I did Field Day and VHF tests for years up there. There are dozens of wide open excellent places to camp with good access for a tent trailer.
On the west side there are still a few decent places you can reach up high, but they are going fast with all the gates and road closures. You can reach the Mt. Pilchuck parking lot (3,150 ft) with almost zero snow right now. That's about the best and highest radio spot I can think of with camping. There are a number of logging roads that branch off the Mtn Loop Hwy with some good camping. Take a weekend and get out and wander the back roads off the Mtn Loop or off Hwy 20. Excellent camping at Baker Lake with pay and dispersed camping.
I camped last week on the N. Fork of the Skykomish river with excellent camping, but the radio reception sucks. You have to access that area via Jacks Pass east of Skykomish. The road from Index is still washed out from the 2007 floods. I was able to drive near the top of Johnson Ridge at 4,000 ft. last week, so it's amazing how little snow there is right now.
There are some good areas on Tonga Ridge over 4,000 ft. and on Maloney Ridge across the valley near Skykomish. You're almost too far east for good radio though, but great camping. Camping to me is NOT staying in a pay campground with some one 30 ft. away, so any place I go is away from the mobs.
I take a RV battery with a 400 watt ac/dc converter for most of my power needs and have a Yamaha 1,000 watt generator if I need to charge. That's a super generator that gets me 12 hrs of run time on about 1/2 a gal. of gas that you can hardly hear. I've been known to take my sat. dish and receiver too, so I've gotten some good stares from people. I ditched my camper years ago and either tent camp or use a 10x10 ft. tarp shelter I built. I take a portable wood stove and stay toasty warm in the coldest weather.
Even though many areas are getting closed and gated, we still have 100's of great places to camp and explore away from the crowds. Just be sure you pick up your garbage and leave it better than you found it. Only takes a few inconsiderate people to wreck it for good. Once the gate goes up or Road Closed signs it's rarely ever reopened. Here's a summer shot from where I camped last week.
Attachment:
P6298055.JPG [ 171.42 KiB | Viewed 1460 times ]