The 2m and 70cm ports of the packet node stack at Spout Springs are a bit "under the weather."
Although both ALW:WA7V-7 and ALW96:WA7V-9 are technically operational, the RF performance of both nodes have been seriously degraded since about the middle of May. Since they share a common duplexer, feedline and antenna, the problem is expected to be found in one of those components. Interestingly, this doesn't seem to be associated with a severe weather event, of the sort that occurs routinely throughout the winter months.
Furthermore, an abundance of snow (including an additional surprise 14"+ snowfall on June 10) continues to prevent a leisurely drive to the radio site by automobile. Just before the most recent snowfall, it was reported that N7ERT encountered about 4' of snow at the gate which is roughly 2 miles from the site. Because of the lateness of the season, I've held off visiting the site until I can drive up there. Besides, I didn't really want to trudge up there through the snow, even if it was on skis or snowshoes, and then have a tower climb to look forward to. ;)
My current guess is that I'll be visiting the site in early July to determine the problem. The repair may not happen until a subsequent trip is made on another date, depending on what is needed to fix it.
73,
WA7V
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Re: Mountain Top Node Status(Score: 1)by wa7v [4] (Colonel.Panic@BlueScreenOfDeath.com) on 23 Mar, 11, 18:46 (User information [5] | Send a message [6] http://wa7v.com/ [7]) |
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The highly abbreviated report on what I discovered when I arrived: a very-broken dual-band collinear antenna. "It's dead, Jim." The slightly longer version: I had horizontally mounted two sections of black ABS pipe on the tower to brace the upper levels of the flimsy, side-mounted vertical antenna. After a couple of years in the weather, the pipes had failed, and ended up destroying the antenna in the process. Why doesn't anyone build a dual band collinear antenna on amateur frequencies that is really suitable for mountaintop use? |