Specs for the loop:

Diameter:	6'2"
Circumference:	20 ft
Target frequency range:	3.5mhz - 10.2mhz (80m - 30m)
Actual frequency range:	3.4mhz - 9.6mhz (missed 30m, oh well)
bandwidth:	less than 50khz (without tuning)
tuning capacitor:	(ideally) 20pf - 380pf, ~10kv at 100w

The bandwidth is fairly small, so pretty much any change in frequency requires the tuning capacitor to be adjusted. The tuning affects reception as well as transmission, which is one of the advantages, as the narrow bandwith also rejects noise.

See also capacitor specs.

I also have pictures of other antennas.

First several capacitor plates large colossal	capacitor diagram large	(wrong tree) large colossal	Couldn't find a belt for this gear. large colossal
large colossal	large colossal	large colossal	large colossal
large colossal	large colossal	remote control mechanism complete large colossal	countersunk screws, etc. large colossal
motor mounted large colossal	large colossal	large colossal	had to remove the ratchet to allow reversing large colossal
Note the feed loop parasidically feeds the large loop; white cylinder is a pass through balun large colossal	large colossal	large colossal	large colossal
large colossal	large colossal	capacitor sealed in box large colossal	windom visible behind loop large colossal
rebuilt to reduce friction large colossal	plates are no longer buckled large colossal	large colossal	view from below large colossal
Top of windom and nearly all of the loop is visible (can you find them?) large colossal