- Spectrum Analyzer, 9kHz to 1.5GHz with preamplifier and tracking generator
- 2012-2014 top selling unit
- 9 kHz to 1.5 GHz Frequency Range
- 1.5 GHz Tracking Generator (TG)
- Multiple markers and marker table functionality
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+ $76.16 shipping
Rigol DSA815-TG Tracking Generator Spectrum Analyzer
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The Rigol DSA815/TG is a compact and light Spectrum Analyzer with premium performance for portable applications. The use of digital IF (intermediate frequency) technology guarantees reliability and performance to meet the most demanding RF applications. The very large display (20.3 cm / 8) of the Rigol DSA815 Spectrum Analyzer with a resolution of 800x480pixels provides a very good overview over all its comfortable functions like Auto Tune, Auto Range, Auto Scale and Auto Couple. These functions enable the analyzer to acquire signals and match parameters automatically, instead of the manual process necessary with a traditional analyzer. The Rigol Spectrum Analyzers have a sophisticated and easy to use user interface and offers multiple functions for all tasks. The menu navigation is very intuitional in use and all functions and parameters are easy to reach because of the graphical interface. Benefits of Rigol's all digital IF design The ability to measure smaller signals: on the basis of this technology, the IF filter enables smaller bandwidth settings, which greatly reduce the displayed average noise level. The ability to distinguish between small signals by frequency: using the IF filter with the smallest bandwidth setting it is possible to make out signals with a frequency difference of only 100 Hz. High precision amplitude readings: this technology almost eliminates the errors generated by filter switching, reference level uncertainty, scale distortion, as well as errors produced in the process of switching between logarithmic and linear display of amplitude when using a traditional analog IF design.
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Top customer reviews
Very feature packed and as good as one of the big names I am used to using at work. I wish it went higher than 1.5G but for the price you can't beat it.
Very solid construction.
There is no free ride. The low price has it's downfalls. Of course how this affects you is dependent on your background, experience with Spectrum Analyzers and application.
If this is your first SA, it's more than adequate. If you are using it for OTA (over the air) monitoring as in broadcast and/or 2-way communication, it might not be. Coming from a Agilent or similar, it surely won't be.
Having experience with a number of scopes under $10k, this is surely a good deal, but the major 'beef' is the slow "update rate"of the display of the sweep. This is NOT the refresh rate, but the rate data is sent to the screen. Many didn't know what I was talking about. Rigol did, to their credit and was able to supply specs which no one else could. While discussing the problem with both of these scopes, I was told the "update rate" is only 5Hz with the 815 & the 1030. The new model; DSA832 rate is substantially faster at 25Hz.
Two related problems which are not limited to just this model or brand; reported sweep speeds:
1. The readout shown is not always correct. The actual speed is usually slower. Example: 100ms is actually closer to 150ms. 750ms is actually 1,000ms (one second). This is not the only SA that I have seen inaccurate speeds reported. Some will report different rates under the same setting.
2. Dropping below 100ms will rarely display a faster updated trace. The 'choppiness' will still be there. The same applies to the older 1030 series. While you can manually dial down to 20ms, it will not show any difference. In other words, while the actually sweep is faster, you won't visually see it. At least you are able to change the sweep speed up or down, Instek's scopes you can only increase the time..
1. Price (what else can one say),
2. Size & weight,
3. Decent color display,
4. Decent US support in English, unlike Instek which seems rare these days (but see below),
5. Tracking generator is close to free ($200 option). I've seen many TG's add $2k to the price. You would be foolish not to equip it this way,
6. Preamp included. You do get a warning 'beep' when the input is at the overload level,
7. Conventional menu structure unlike R&S, Agilent & Anritsu,
8. Perfect entry level SA, especially for hobbyists,
9. Decent boot time (20 sec) and immediate shut down,
10. Low standby current (1 watt).
11. Free 3rd party remote screen capture available that captures in 3.5 seconds (see below).
1. Overload input is 10db/m less than most others; 20dBm vs 30dBm
2. Inability to update the display to show sweeps faster than 100ms (depending on other settings) due to 5Hz update rate.
3. Very noisy fan which doesn't seem to be necessary since this runs cool,
4. Outdated 480 line NTSC resolution. At least give us 600,
5. Repair and alignment will probably have to be done in China with a 4-6 week turnaround time though hopefully this will change,
5. You can only save screen shots to a USB stick, not to internal memory like Instek's,
6. No white screen option for the screen saves, you have to use PC software to invert colors if you wish to print the results to save ink,
7. You are forced to name the screen saves with a confusing text entry setup that requires jumping past the Chinese symbols entry every time you switch from numbers to letters. You have to keep switching back and forth between letters and numbers since you can't use the number keypad unlike Instek,
8. Overall specs are in a lower tier class (as expected at this price). Noise floor and phase noise specifically.
9. No optional battery or DC operation.
10. No 'jog' dial, only a small knob. Navigation buttons are only up & down,
11. The 'feet' that fold out to tilt the unit up have a tendency to collapse when you lift the scope from the bench. Instek's system is far better,
12. Only 4 markers,
13. 3rd party remote control software is bloated and expensive. Surely not worth it. Why can't Rigol provide a basic version?
14. Measurement software included with the 1030 series is now a option.