Check the listing for details. Agilent/HP 58504A GPS Antenna NEW. Condition: New. Listed at 149.95 USD. Agilent/HP 58504A GPS Antenna New in Box! Features: Frequency 1575.4 MHz +/-5 MHz Impedance 50 W Nominal Total Gain 30 dBi Polarization Right Hand Circular Noise Figure 1.5 dB Typical Payment: Payment must clear before shipping. Shipping On This Item: Shipping & Handling can be calculated using the shipping calculator. USA shipping with USPS. Shipping worldwide with USPS. See calculator for available options. Shipping address must match "bill to" address. Return Policy: This item may be returned within 30 days from the date you receive your order for refund of auction sale price. Shipping & Handling fees are non-refundable. Feedback Policy: When the customer is satisfied with a purchase and leaves positive feedback then we are more than happy to leave feedback in kind. Please contact us FIRST if there is a problem or concern. Photo gallery click to enlarge