| 1D5 | HIGH STABILITY TIME BASE |
| 1DR | NARROW RESOLUTION BANDWITH |
| 1DS | 3.0 GHz PREAMPLIFIER |
| A4H | GPIB AND PARALLEL PRINTER INTERFACES |
| B75 | PERFORMANCE BUNDLE (1D5+1DR+1DS) |
| 1AX | rs-232 |
| H57 | bundle opt. for military : 1d5,1dr,a4h,ayx,baa,ayz,obw,ob1,uk9 |
| ayx | Fast time domain sweep |
| baa | fm demodulation/deviation |
| ayz | External Mixing need to add 11970A 26.5-40 ghz mixer...... |
| obw | service documentation |
| ob1 | manual set |
| 009 | connection kit |
| uk9 | front panel cover |
| b72 | 8 M byte mem |
| 226 | phase noise personality |
| 1DN | 3.0 ghz tracking gen |
| A4J | IF and sweep ports |
| 1D6 | Time-Gated Spectrum Analysis |
| BAA | FM Demodulation |
| UKB | 100 Hz low frequency extension |
| 106 | Bluetooth FM demodulator |
| 060 | Reduced emissions |
| 120 | Enhanced Wide Offset Phase Noise and ACPR Dynamic Range |
| 1A7 | ESA Series ISO 17025 compliant calibration with test data |
| 219 | Noise figure measurement personality and hardware |
| 225 | License Pre-Installed Cable fault location personality |
| 227 | License Pre-Installed Cable TV Field Service and Analog Broadcast Measurement Personality |
| 228 | License Pre-Installed Bluetooth measurement personality |
| 252 | License Pre-Installed EDGE upgrade to GSM Measurement Personality |
| 304 | Bluetooth premium opt. Bundle |
| BAH | License Pre-Installed GSM/GPRS measurement personality |
| B7D | Digital signal processing and fast ADC |
| B7E | RF communications hardware |
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