Aeroflex IFR Marconi NAV-750BR – Signal Generator
Aeroflex IFR Marconi NAV-750BR – Signal Generator,A navigation signal generator capable of simulating VOR, ILS, and marker beacon signals. It's used for testing navigation receivers and avionics systems in both bench and flightline environments.
- Model
- Aeroflex / IFR / Marconi NAV-750BR
- Calibration
- Available on request
- Price
- $3,579
- Status
- In stock
- RFQ ref
- NAV-750BR
This unit
The Aeroflex IFR Marconi NAV-750BR is a precision navigation signal simulator for functional testing and calibration of airborne receiver systems. It generates VOR, LOC, ILS, COMM, and Marker Beacon signals in a self-contained unit suitable for bench and flightline deployment, eliminating the need for multiple test instruments.
Technical Specifications
Signal Generation- Complete VOR, LOC, COMM, Marker Beacon (MKR), and Glide Slope (G/S) generator
- 40 paired LOC-G/S frequencies
- ARINC two-out-of-five wire frequency selection output Frequency Coverage
- 70.000 to 79.900 MHz, 108.000 to 156.000 MHz, and 329.000 to 335.000 MHz
- Selectable in 10 kHz steps (70–799 MHz) and 50 kHz steps (108–156 MHz)
- COMM frequencies: 118.000 to 157.950 MHz in 25 kHz steps
- 100 Hz frequency resolution
- Automatic channeling with 25 kHz spacing Modulation
- Automatic VOR or LOC modulation selection
- VOR tones at 9960 Hz (phase-locked to 2.16 MHz crystal) and 1020 Hz
- G/S deviation selectable as ±0.045, ±0.091, ±0.176, ±0.400, and continuously adjustable 0.800 DDM
- FM deviation accuracy: ±5% of indicated deviation excluding residual phase modulation at 1 kHz
- Distortion: <3% at 10 radians for FM and <3% at 1 kHz rate for AM up to 80% modulation depths
- External modulation input via front panel BNC or rear panel jack RF Output
- Output level selectable in 1.0 dB steps from -127 dBm to 0 dBm
- RF output range: -137 dBm to +25 dBm (carrier frequencies up to 1.2 GHz); -137 dBm to +19 dBm (above 1.2 GHz)
- Maximum guaranteed AM output: +8 dBm
- Usable to 2 GHz with AM for carriers <1 GHz Power & Physical
- DC Operation: 11 V to 32 V
- Power consumption: 70 W (Option 3 not fitted)
- Built-in bearing monitor
- Demodulation output on rear panel
Key Features
- GPIB control (NAV-750BR model)
- Single instrument replaces multiple test sources
- Flightline and bench-ready configuration
Typical Applications Functional testing and calibration of airborne navigation receivers, avionics systems, and VOR/ILS/COMM equipment.
Compatibility & Integration Designed for testing navigation receivers and avionics systems across aviation applications.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 108.000 to 156.000 MHz, 70.000 to 79.900 MHz, and 329.000 to 335.000 MHz | Power Range (dBm): '-137 dBm to +25 dBm (carrier frequencies up to 1.2 GHz) |
| -137 dBm to +19 dBm (carrier frequencies above 1.2 GHz) | Voltage / Current Range | 11 V to 32 V DC |
Aeroflex / IFR / Marconi NAV-750BR — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Aeroflex / IFR / Marconi NAV-750BR. Calibration covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Aeroflex / IFR / Marconi NAV-750BR faults: YIG oscillator failure (no output or loss of lock), step attenuator wear (output drops or steps at set attenuation), ALC loop failure (uncontrolled output power), I/Q modulator assembly failure. HP/Agilent 836xx series most common faults are YIG oscillator failure and step attenuator contact wear causing output steps or drops at specific attenuation settings. Keysight E4428C/E4438C units most commonly develop ALC loop failure and I/Q modulator assembly faults. YIG oscillator replacement and attenuator service are stocked repairs.
Aeroflex / IFR / Marconi NAV-750BR price
This Aeroflex / IFR / Marconi NAV-750BR is listed at $3,579. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Aeroflex / IFR / Marconi NAV-750BR calibration cost
NIST-traceable calibration for the Aeroflex / IFR / Marconi NAV-750BR is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
