在 VIA 家族產品中的的 Echo 系列有些是加入了頻譜分析儀的功能. Echo 系列產品中都是雙埠口的規格. 頻率範圍有兩種, 由 4.0Mhz 到 1.0GHz 的 1000 型, 以及到 2.5GHz 的 2500 型. 其中 1000SF 機種及 2500 機種則另外有頻譜分析儀的功能 2500,1000SF 機型另外還具有 FDR 的功能. FDR 即是 Frequency Domain Felectometer 的簡稱, 通常稱為頻率時間域反射儀. 產品包括一精緻堅固的黑色攜行袋, 操作手冊, 8 個 AA NiMH 電池, AC 充電器, USB 連接線, PC Vision 軟體, 較長用假負載, 所以的這些附件均收納於一個軟性提包中.
具有的分析功能如下 SWR Return Loss (dB) Phase Angle Reactance (X) Resistance (R) Impedance (Z) Gamma Magnitude Gamma Angle Linear Gain Phase Gain Spectrum Analysis (僅 2500,1000SF 機種) Frequency Domain Reflectometer (僅 2500,1000SF 機種) 主要的規格; Range: 4.0 MHz to 1.0 GHz 91000,1000) & 4.0 MHz to 2.5 GHz (2500) Display Resolutions: 1 KHz up to 1.1 GHz, 10 KHz for > 1.1GHz-2.5GHz Measurement speed: ~3 sweeps / second Frequency display width: 250 points x N x resolution (N=intiger) Impedance Range: 2 to 2000 Ohms Impedance plotting scales: 0 to 50 Ohms min, 0 to 2000 ohms max Impedance Formats: Resistance, reactance, Z, Z angle, SWR, return loss , S11 vector Phase angle plotting scales: +/- 15 to +/- 180 degrees Harmonic and spurious: > 30dB below fundamental Output power: ~ +0dBm @ 50 Ohms Power requirements: 90-240VAC 50-60Hz AC power for charging Antenna connector: `N` Type S11 & S21 Size: 8.5” x 4.3” x 2.25” (216 x 109 x 57mm) Weight: 2 lb 1 oz (923grams) with softcase and batteries Cursors: 2 Memory: 250 Tests Results/Instrument Setups Display: Qtr VGA Backlit LCD 280 x 156 pixels Communications: USB 2.0 Port Internal Power: 8 AA NiMH (included), Alternate alkalines or NiCd batteries External Power: 15VDC @ 450mA Environmental: Splash and dust resistant Drop Resistance: MilStd 810F Transit Drop, 48 inches (122cm) 產品規格文件
特價:	NT$89,900.00 (含 5% 營業稅)