The Keysight/Agilent/HP 8648A-1E5-1EP is a synthesized signal generator engineered for RF testing in high-volume manufacturing environments including cordless phones, pagers, and two-way radios. This model combines precise frequency and amplitude control with Option 1E5 high stability timebase and Option 1EP pager signaling capability for POCSAG, FLEX, and FLEX-TD format testing.
## Technical Specifications
• Frequency range: 100 kHz to 1 GHz
• Frequency resolution: 0.001 Hz steps with 10 Hz display resolution
• Frequency accuracy (standard): Typically ±3×10⁻⁶ × carrier frequency (Hz)
• Frequency accuracy (Option 1E5): Typically ±0.15×10⁻⁶ × carrier frequency (Hz) or ±0.092×10⁻⁶ × carrier frequency (Hz) within 90 days of calibration
• Output power range: –136 dBm to +10 dBm (maximum +13 dBm)
• Power resolution: 0.1 dB
• Output accuracy: ±1 dB (typical)
• Output impedance: 50 Ohm
• Frequency switching speed: <75 ms below 1001 MHz; <100 ms at 1001 MHz and above
• Harmonics (output ≤+4 dBm): <–30 dBc
• Subharmonics (<1001 MHz, output ≤+4 dBm): <–60 dBc
• Phase noise (typical at 500 MHz): –120 dBc/Hz to –110 dBc/Hz single-sideband
• AM modulation accuracy: Typically ±7% of setting ±1.5% over 0°C to 50°C at <70% depth
• DC FM accuracy: ±500 Hz carrier frequency accuracy below 1001 MHz
## Key Features
• Modulation modes: AM, FM, and phase modulation
• Option 1E5 timebase: Aging <±0.1 ppm/year and <±0.0005 ppm/day; temperature stability <±0.01 ppm (typical); line voltage stability <±0.1 ppm (typical)
• Standard timebase: Aging <±2 ppm/year; temperature stability <±1 ppm; line voltage stability <±0.5 ppm
• Pager encoder (Option 1EP): POCSAG, FLEX, and FLEX-TD signaling support
• Remote programming: GPIB (IEEE-488.2-1987) interface with Listen and Talk capabilities
## Typical Applications
• Cordless phone RF testing
• Pager and two-way radio manufacturing test
• Digital paging format validation (POCSAG, FLEX, FLEX-TD)
## Compatibility & Integration
GPIB remote programming enables automated test system integration for high-volume production environments.
