Excellent all-inclusive RF and analog modulation performance up to 3 or 6 GHz
The E4428C ESG analog signal generator delivers outstanding spectral purity, level accuracy, output power, and analog modulation performance up to 3 or 6 GHz for all general-purpose test needs. This makes the E4428C ESG a superb choice for general-purpose tests requiring CW, AM, ΦM, and FM receiver and component test signals in the cellular, ISM, and UNII frequency bands.

Lowest Single-Sideband (SSB) phase noise performance in its price class
Single-Sideband (SSB) phase noise is an extremely important specification of a signal generator. For example, if used for measuring the adjacent channel selectivity of a receiver, your test results might indicate a failure when your receiver is actually functioning properly if the phase noise of the signal generator is too high. With a typical SSB phase noise performance of -134 dBc/Hz at 20 kHz offset from a 1 GHz carrier, the E4428C ESG will meet your demanding performance needs. Other key applications that require high spectral purity include LO substitution, low-jitter clock stimulus, blocking/interference signals, and in-channel measurements close to the carrier.

Keysight E4428C ESG Analog Signal Generator 為一款高頻譜純度、低相位雜訊的類比射頻訊號產生器，專為一般 RF 測試、接收器驗證與元件量測所設計。
其頻率涵蓋最高 3 GHz 或 6 GHz，具備優異電平準確度與穩定輸出表現，適合 CW 與多種類比調變應用，廣泛用於 cellular、ISM 與 UNII 頻段之測試需求。

・E4428C-503：250 kHz to 3 GHz（電子式衰減器，標準）
・E4428C-506：250 kHz to 6 GHz（機械式衰減器）
・E4428C-UNB：High output power（機械式衰減器，高功率版本）

・Frequency range：250 kHz to 3 GHz / 6 GHz
・Superior specified level accuracy：
　±0.6 dB（up to 3 GHz）
　±0.9 dB（up to 6 GHz）
・Broad output power range：
　–136 dBm to +17 dBm（1 GHz）
　+16 dBm（3 GHz）
　+10 dBm（6 GHz）
・High-stability timebase，確保頻率穩定度與準確度

・Single-Sideband (SSB) phase noise：
　Typical –134 dBc/Hz @ 20 kHz offset（1 GHz carrier）
・適用於鄰頻選擇性、阻塞與干擾源測試
・支援 LO substitution、低抖動時脈刺激與近載波量測應用

・Remote interfaces：GPIB / RS-232 / LAN
・SCPI 指令程式控制
・適合整合至自動化測試與 ATE 架構

・E4428C-1EM：前面板連接埠移至後方
・E4428C-1CM：機架安裝套件（無把手）
・E4428C-1CP：機架安裝套件（含把手）
・E4428C-1CN：前面板把手套件

・AI 伺服器與資料中心相關無線模組 RF 校準與干擾測試
・LTE／Sub-6 GHz 接收器靈敏度、阻塞與鄰頻測試
・Wi-Fi 5 / Wi-Fi 6 無線模組 RF 基本驗證
・NB-IoT 與低功耗無線通訊裝置測試
・射頻晶片、PA、LNA、Filter 等 RF 元件特性量測
・一般 RF 實驗室、校準單位與產線 EOL 測試

Keysight E4428C datasheet: 

Excellent all-inclusive RF and analog modulation performance up to 3 or 6 GHzThe E4428C ESG analog signal generator delivers outstanding spectral purity, level accuracy, output power, and analog modulation performance up to 3 or 6 GHz for all general-purpose test needs. This makes the E4428C ESG a superb choice for general-purpose tests requiring CW, AM, ΦM, and FM receiver and component test signals in the cellular, ISM, and UNII frequency bands.

Lowest Single-Sideband (SSB) phase noise performance in its price classSingle-Sideband (SSB) phase noise is an extremely important specification of a signal generator. For example, if used for measuring the adjacent channel selectivity of a receiver, your test results might indicate a failure when your receiver is actually functioning properly if the phase noise of the signal generator is too high. With a typical SSB phase noise performance of -134 dBc/Hz at 20 kHz offset from a 1 GHz carrier, the E4428C ESG will meet your demanding performance needs. Other key applications that require high spectral purity include LO substitution, low-jitter clock stimulus, blocking/interference signals, and in-channel measurements close to the carrier.

• Datasheet PD1528352058622