VSIEQ860-6 In-Line EqualizersViewsonics In-Line Equalizers provide signal level correction at 6dB, 9dB and 12dB increments. Both the tubular (VSIEQ) and rain-hat (VSSMEQ) products are available in 860MHz and 550MHz designs. VSIEQ products come with a rubber seal on the male port to resist water intrusion. Both products are usable indoors or outdoors over a wide temperature range and linear in performance.