Rohde & Schwarz SMFA BN 41300 HF/VHF/SHF RF Signal Generator, 1.39–510 MHz

The Rohde & Schwarz SMFA BN 41300 is a vintage analog RF signal generator for HF, VHF, and SHF test applications. It provides a frequency range of 1.39 MHz to 510 MHz across 12 ranges, with AM and FM modulation for laboratory electronics testing, RF development, communications research, and service engineering.

Technical specifications

• Frequency range: 1.39 MHz to 510 MHz in 12 ranges
• RF output impedance: 50 Ohms
• RF output connector: DECIFIX B
• Output voltage: 0.03 µV RMS to 2 V RMS
• Output level without attenuator: 110 dBµV and 120 dBµV
• RF attenuator: 10 dB steps, from -20 dBµV to +100 dBµV
• Electronic fine tuning: ±30 kHz, 100 kHz, and 300 kHz
• Internal modulation generator ranges: 10–100 Hz, 100–1,000 Hz, 1–10 kHz, and 10–100 kHz
• Internal modulation generator output: 0–6 V
• AM modulation: 0% to 95%, 10 Hz to 100 kHz
• FM modulation: 0 to ±300 kHz deviation in three ranges, 10 Hz to 100 kHz frequency
• Power supply: 115/230 VAC, 150 VA

The unit is described as cosmetically excellent and functionally tested. Included accessories comprise a coupling head 41300-36, separator capacitor with fuse 41300-37, multiple tips and cables, adapter cable 41300-34, and the original Rohde & Schwarz operation and service manual with technical information and wiring diagrams.