Manual for magnum 257

Attach the mounting bracket to the vehicle first then mount the to the bracket. If the rear panel is not A ground-plane antenna provides greater coverage and accessible you may want to attach the power and an- is recommended for fixed station-to-mobile operation.

Page 7: Installation If purchasing an alternator noise filter for the Magnum make sure the filter is rated for at least 10 amps continuous current draw. The entire frequency range of the Magnum Increases or decreases the energy developed in the can be stepped through in 10 or kHz increments. Page 9 To activate the programmed offset frequency, press for programming instructions. The will 7. Page Other Features 2. Memory Back Up blue. Press slightly and release, FUNC will be displayed The features a super-capacitor back up for the 5 on the LCD indicating that the function command is memory channels.

The can be disconnected from activated. Print page 1 Print document 12 pages. Rename the bookmark. Delete bookmark? Cancel Delete. Delete from my manuals? Sign In OR. Hook up radio to power and turn on for a minimum of 10 seconds. Turn off radio and disconnect from all power sources. Remove Bottom cabinet cover. Remove unsolder Diode D2. This is the only Non-Surface mount component found in this area. Hook the radio back up to power and turn on the radio.

The band indicator will appear on LCD. Use the CALL button to select bands. When turned off and on again, the radio will always default to original 10 meter settings. NOT current limited!