Preamplifiers Home $ products $ Antennas and measurement $ Preamplifiers Preamplifiers EM-4215 | Preamplifier, 1 kHz – 1 GHz (Download PDF) EM-4202 | Preamplifier, 0.1 – 12 GHz (Download PDF) EM-4203 | Preamplifier, 12 – 18 GHz (Download PDF) EM-4206 | Preamplifier, 9 kHz – 1 GHz (Download PDF) EM-4211 | Preamplifier, 2 – 18 GHz (Download PDF) EM-4212 | Preamplifier, 100 MHz – 18 GHz (Download PDF) EM-6990A | Preamplifier (Download PDF) We are happy to help you with advice and assistance. Contact us ← TS-9000 Replacement Antennas Filters →