I have used the AH4 with a 400 foot loop and have gotten decent results. They both should attempt to match an antenna at that frequency. Tom NU4G On Oct 10, 2006, at 11:01 AM, -José=LU1ARV- wrote: > Dear IcomMan's! > Is possible to use in 160 meter, the AH-4. > I have an AH-3. > Thanks > JL