The Yaesu ATAS-25 is a great choice for temporary Field Operations with several Yaesu transceivers including the FT-991A. It covers these amateur bands: 7, 14, 21, 28, 50, 144 and 430 MHz. The bands are covered by manual changing the supplied elements and hand adjusting the coils. See the chart below. HF and 6 meter power capacity is: 100 watts SSB/CW 50% duty cycle and 50 watts AM/FM. Power capacity for 144/430 MHZ is 50 watts in all modes. Maximum height is 7.2 feet 2 lbs. A hex wrench and three wire radials are supplied (20, 9.8 and 6.6 foot).
This antenna requires a camera type tripod base (not supplied). The antenna has an SO-239 (PO) antenna connection, ready to accept a PL-259 plug. 50 Ohms nominal. Matched SWR Less than 2.0:1. Please note that several items illustrated above, such as the radio, camera tripod, base, table, tent and coax are not supplied. The ATAS-25 is not designed for permanent, long-term outdoor operation.
For some models, you may wish to purchase a diplexer or triplexer to avoid having to move your cable from one antenna jack to another. Read the directions carefully for cautions.
Click here for ATAS-25 video demonstration [2.1 mins.]
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