
( Brand: Heathkit ), ( Model: AD-1308/AD-1308-1 ), ( Part Type: Analyzer ), ( Country/region Of Manufacture: United States )
The Ad-1308-1 Audio Real-Time Health Spectrum Analyzer from Heathkit is a powerful and versatile tool for audio engineers, hobbyists, and electronic enthusiasts. This device allows you to visualize audio signals in real-time, providing valuable insights into the frequency content of your audio source.
The Ad-1308-1 features a high-resolution LCD display that provides a clear and detailed view of the spectrum analysis. The device can measure frequencies from 20 Hz to 100 kHz, making it suitable for a wide range of audio applications, from music production to radio frequency analysis.
The analyzer has a built-in amplifier with adjustable gain, allowing you to input signals of varying levels. It also has a selection of filters, including a bandpass, bandstop, and high-pass filter, which can be used to isolate specific frequency ranges.
One of the standout features of the Ad-1308-1 is its real-time analysis capability. This means that the device can update its display continuously, providing real-time feedback on the audio signal. This is particularly useful for monitoring and troubleshooting audio issues in real-time.
The Ad-1308-1 is a manual instrument, which means that it requires a certain level of technical skills to use effectively. However, Heathkit provides comprehensive documentation and user guides to help users get started. The device also has a sturdy construction and is built to last, making it a solid investment for those looking for a high-quality spectrum analyzer.
In summary, the Ad-1308-1 Audio Real-Time Health Spectrum Analyzer from Heathkit is a powerful and versatile tool for audio analysis. Its high-resolution display, adjustable gain, and selection of filters make it a versatile tool for a wide range of audio applications. Its real-time analysis capability and sturdy construction make it a reliable and long-lasting investment for audio engineers and enthusiasts alike.
Pros of buying a Ad-1308-1 Audio Real-Time Spectrum Analyzer from Heathkit:1. Real-time analysis: The device provides real-time frequency analysis, which can be beneficial for monitoring and troubleshooting audio signals.
2. Wide frequency range: The Ad-1308-1 covers a frequency range of 10 Hz to 300 MHz, making it suitable for a variety of applications.
3. High resolution: The device offers a resolution of 0.1 Hz, providing accurate frequency measurements.
4. Built-in calibration: The Ad-1308-1 includes an internal calibration source, eliminating the need for external calibration equipment.
5. User-friendly interface: The device features a simple and intuitive interface, making it easy to use for both beginners and experienced users.
Cons of buying a Ad-1308-1 Audio Real-Time Spectrum Analyzer from Heathkit:1. Price: The device is relatively expensive compared to some other spectrum analyzers on the market.
2. Limited connectivity options: The Ad-1308-1 only offers a BNC connector for input, which may limit its compatibility with certain audio sources.
3. Limited software support: The device comes with limited software support, which may require users to develop their own software solutions for more advanced applications.
Conclusion:The Ad-1308-1 Audio Real-Time Spectrum Analyzer from Heathkit is a high-quality device with a wide frequency range, high resolution, and a user-friendly interface. However, it is relatively expensive and has limited connectivity options and software support. If you are looking for a real-time spectrum analyzer with a wide frequency range and high resolution, the Ad-1308-1 may be a good option. However, if cost is a concern or you require more advanced connectivity options and software support, you may want to consider other options on the market.
Recommendation:If you are a hobbyist or professional looking for a high-quality real-time spectrum analyzer with a wide frequency range and high resolution, the Ad-1308-1 Audio Real-Time Spectrum Analyzer from Heathkit may be a good choice. However, be sure to consider the device's price and limited connectivity options and software support before making a decision. It is recommended to do your research and compare other options on the market to find the best fit for your needs and budget.
All inputs and outputs are via phono jacks located on the rear panel of the accessory.
Along the bottom of the display area are the calibration markings for the frequencies represented by each of the columns of fluorescent light squares. 5 Hz, the highest 20 khz. This unit starts out with a very good if not altogether flat response mic and then carefully measures its response, including any deviations from flat. The diff position puts the analyzer into a difference mode.
Lab tests showed that we had no cause for concern, as revealed by the analyzer's frequency response characteristics fig. The lowest frequency on this scale is 31. Being ac rack mounted and or portable with its battery powered extends its capability.
There are identical vertical scale pairs screened onto the display window on each side of the matrix arrangement.
The accessory also allows you to connect external inputs but not the calibrated microphone to the analyzer and to access a voltage output from it for connection to an RMS voltmeter, chart recorder, or other suitable test instrument.
It would then be a simple matter to adjust a graphic equalizer or the tone controls in an audio system for accurate overall frequency response. Operation of the power supply rack mount accessory with the analyzer properly docked in it is very simple. Controls for this sophisticated instrument consist entirely of a combination of slide, push button and rotary type switches.
Along the left side of the display window are the power, memory I and 3 db display scale, 1/2 and 1 octave, and avg average peak hold display response switches.
The procedure for docking the ad analyzer in its companion Ada power supply rack mount accessory is simple. Docking is accomplished through a miniature 9 pin db 9 connector on the rear of the instrument's case. By building into the instrument the necessary compensation network which includes a ROM ICC to correct any frequency errors, the combination of microphone plus compensated pre amplifier yields an overall response that is flat within the instrument is very compact, considering what it's designed to do. From top to bottom, these include the power, charge, left, right, left right, and left right switches.
Below the attenuate switch are the slide type a flat c spl weighting, slow fast peak spl response, mic ext microphone external input, and the aforementioned diff memory bank selector switches. Used alone portable as is, the ad 1308 provides test and analysis capabilities only through its microphone. The four lower switches permit independent left and right channel input selections or summed l and r or differences l and r inputs to the analyzer.
Using the difference mode, you can compare one of the stored response curves with a current input and then automatically display the difference between the two. Immediately to the right of the power and charge switches are red and green leds, respectively, that come on when these functions are selected.
Immediately above the power switch is a small red led that comes on whenever this switch is set to the on position. There are a total of six push button switch controls, arranged in a neat column on the left side of the front panel. With c cells installed. Db over the entire audio range when used with a pink noise source in an echoic echo free environment.
Depending on the frequency content and amplitude of the signal or sound being tested and the position of an octave switch, all columns in the 1/2 octave position or every alternate column in the 1 octave position will light. The display window has scales and base lines printed on it in two colors, keyed to a display scale switch, with the 1 db scales in white and the 3 db scales in red. All ad 1308 controls, plus the switches on the Ada, are out in the open for immediate access.
Since the maximum range within the display itself extends from 20 to 6 db, total spl reading range for the instrument can go from a low of db to a high of db with this switch. 5 db, and the measured.
Dominating the front panel is a large window, behind which is a matrix array of 20 columns by 12 rows of fluorescent light squares that selectively glow a soft blue when activated. You just drop down the latter's front panel, slide the ad 1308 into place until its connector meshes with the connector built into the accessory, and flip the panel back into place.
These items sit nearly out of the way in the same well as the analyzer but are ready for immediate use when needed. It measures w xx and weighs lbs. Of course, it can also be powered from the ac line when nested in the accessory power supply rack mount, which also provides the means for recharging the ni CD cells when used.
When the analyzer is docked in this accessory, power is supplied from an ac source. An individual calibration curve response accompanies each instrument. 2, in which the maximum deviation from perfectly flat was less than 0.
The white scales are calibrated in 1 db increments from 9 to 2 db, while the red scales are calibrated in 3 db increments from 27 to 6 db. This arrangement is used for displaying sound signal levels in each of 20 half octave frequency ranges. The nice thing about this arrangement is that when you pop the analyzer into the supply rack mount, you can use standard phono jack type cables for connecting the analyzer to the outputs of audio equipment.
Located to the far right of the display area is a single isolated column of light squares that indicate overall sound pressure level spl. The instrument can be operated by direct ac connection to an audio amplifier or by using inbuilt in calibrated microphone.
To the right of the display window is a large thumb operated attenuate for adjusting analyzer sensitivity in 10 db steps from 50 to 120 db spl. The calibrated microphone supplied with the ad plugs into a connector on the top of the instrument's case.