Knowledge Base
Frequently Asked Questions
Does my StroboPLUS HDC require calibration?
Unlike more modern Peterson strobes, legacy models such as the Peterson 400, 420, 450 and 700 do require occasional calibration.
If you require service, please open a support ticket and return the tuner for repair.
Was this helpful?
Help others find this information sooner.
How do I read a strobe display?
Adjust your instrument until the pattern is as close to still as possible. Strobe displays are 'real-time' and extremely precise. They require very fine tuning adjustments to stop the display because the frequency/pitch of any instrument is never totally stable.
You'll quickly learn to read the display, make the most precise adjustments and appreciate the high resolution that only a Peterson provides.
Was this helpful?
Help others find this information sooner.
Is the accuracy the same for all Peterson tuners?
Was this helpful?
Help others find this information sooner.
Peterson Connect does not detect my StroboPLUS HDC in Linux environment.
Chrome needs access to /dev/hidraw*, so either set "chmod a+rw /dev/hidraw*" or start chrome as root with the --no-sandbox option
*Some Ubuntu based distros do not allow running Chrome as root with the --no-sandbox option enabled. -Running as root without --no-sandbox is not supported. See https://crbug.com/638180. You can however run Chromium as a normal user and invoke that option.
Some users have reprted a fix by adding a new udev rule as follows: KERNEL=="hidraw*", SUBSYSTEM=="hidraw", MODE="0664", GROUP="plugdev", ATTRS{idVendor}=="2368", ATTRS{idProduct}=="*SEE BELOW"
* Some Peterson products operate in two different modes with individual product id's for firmware update operations. Multiple rules may need to be created. Here is the list of Peterson USB product ID's
idProduct =
Stomp Classic = 8002
StroboPLUS HD = 0003
StroboPLUS HD Firmware Mode = 8003
StroboClip HD = 8004
StroboStomp HD = 8005
StroboPLUS HDC = 0006
StroboPLUS HDC Firmware Mode = 8006
If there is trouble connecting or reconnecting as a product is switching modes, ex: StroboPLUS HDC product id 0006 to StroboPLUS HDC Firmware Mode 8006 run the command:
"sudo chmod a+rw /dev/hidraw*"
This command will solve any "waiting on user input" or if the update button in Peterson Connect is unresponsive. The command may need to be executed more than once.
Was this helpful?
Help others find this information sooner.
What is my StroboPLUS HDC’s Sweetened Tunings feature all about?
Was this helpful?
Help others find this information sooner.
What is a Guided Tuning?
The result is an accurately tuned guitar tuned to the required alternative tuning.
Using Peterson Guided Tuning, it is not only possible to try out new tunings without any other reference whatsoever, it is also entirely possible for someone with no previous musical experience at all to consistently, accurately and easily tune a 5, 6, 7, 8 or 9-string guitar to any tuning.
Was this helpful?
Help others find this information sooner.
Is there a carrying case available?
Cases are available for the AutoStrobe™ line, the StroboClip HD and the StroboPLUS HD/HDC.
Was this helpful?
Help others find this information sooner.
Which Peterson products work with Peterson Connect?
- StroboClip HDC
- StroboStomp Mini
- StroboPLUS HDC
- StroboClip HD
- StroboStomp HD
- StroboStomp LE
- StroboPLUS HD
- Stomp Classic Pedal Tuner / Active DI
Was this helpful?
Help others find this information sooner.
How accurate is my StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
I often tune my acoustic instrument in a loud environment. What's available to help with that?
A Peterson TP-3 clip-on tuning pickup is a very versatile device with a 1/4" connector that can be clipped onto any portion of the instrument that vibrates, such as the headstock of a guitar or the bell or lead pipe of a horn.
A Peterson Pitch Grabber Mobile Tuning Clip utilizes a 1/8" connector for use in mobile phones or tablets with software tuners.
For instruments with a flat resonating surface, you can use a suction cup tuning pickup to reduce ambient noise interference.
Was this helpful?
Help others find this information sooner.
How do I send my product in for repair?
If you have not registered your tuner, you must do so before opening your support ticket.
All products returned for service must have a support ticket number on the outside of the box as well as on the accompanying paperwork on the inside of the box.
We strongly recommend shipping with tracking information and insurance. Peterson Electro-Musical Products, Inc., and subsidiaries thereof, are not responsible for lost packages in transit to our repair facility.
Include a description of your problem in both your support ticket and paperwork included with your product. Please be specific about the type of malfunction as well as the conditions under which it occurs. Include your name, address, phone number, and email address on the accompanying paperwork.
There is a minimum charge of $95.00 US plus return shipping charges for all Mechanical Peterson tuners received and a minimum charge of $48.00 US plus return shipping charges for all LCD Peterson tuners (unless subject to Peterson warranty). If you would like an advance estimate for service, you must include a request in writing with the product you ship. If you choose not to have your product repaired, there is a $48 diagnostic charge plus return shipping.
Payment options include PayPal, VISA, MasterCard, AMEX and Discover Card.
Any balance is due within 30 days of the completion of the repair. After 30 days, a storage fee will be charged. After 90 days, your property will be considered abandoned and will disposed of at our discretion.
For international (non-USA) repairs and for all Conn and Node tuner repairs, please open a support ticket as different procedures may apply.
Contact and Shipping Details:
For service of Peterson tuners:
Peterson Electro-Musical Products, Inc. 11601 South Mayfield Ave. Alsip, IL 60803 USA TEL: 708-388-3311 (ext. 143) FAX: 708-388-3341 Email: techwest@petersonemp.com
Was this helpful?
Help others find this information sooner.
Where should I put the vibe clip?
Common places to clip the vibe are:
On your belt line at the small of the back next to your spine, on the back of your collar, on your side next to your hip bone, or on your shoe.
Remember, always place the barrel of the vibe toward your body for the most effective beat transfer.
Was this helpful?
Help others find this information sooner.
What is the frequency response range of the StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
Which browsers support Peterson Connect?
Peterson Connect will not function in Safari. Custom Configuration, Sweetener Design, and Tempo Map designer will function in Safari, but Safari does not support webHID therefore data transfer to your device is not possible.
Was this helpful?
Help others find this information sooner.
What is the note range of the StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
How do I enter Polyrhythm Mode on my StroboPLUS HDC?
Press the Parameter button until the beat value (bottom number) of the time signature flashes. Scroll the Value Wheel past 16 and you will see the letters POL appear. You are now in Polyrhythm Mode and may adjust your polyrhythm elements from 1-19.
When in Polyrhythm Mode, tempo follows the 1st element, or top number, of the polyrhythm.
Was this helpful?
Help others find this information sooner.
How many Metronome Presets and Tempo Maps can I store on my StroboPLUS HDC?
The longer the Tempo Map is, the more memory it will use which will deplete the amount of locations, respectively.
Was this helpful?
Help others find this information sooner.
Is the StroboPLUS HDC rechargable?
Was this helpful?
Help others find this information sooner.
What are the dimensions of the StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
What is the tempo range of the StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
What are the available beat values for the StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
What are the available beats per measure of the StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
What is the global cents offset range of the StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
How do I adjust by 1/10th of a cent or Hz on my StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
What should I do if my new Peterson product doesn't seem to work properly?
Was this helpful?
Help others find this information sooner.
Windows 10/11 presents "USB device can't be recognized" error when I plug in my tuner.
A restart of your computer will usually solve this issue.
After your computer powers off, restart your computer, plug in your tuner, and the USB drivers should install automatically.
Was this helpful?
Help others find this information sooner.
What is the range of Hz calibration or Concert A calibration of my StroboPLUS HDC?
Was this helpful?
Help others find this information sooner.
How do I find out how far out of tune my guitar is in cents?
The following video shows this process using a StroboPLUS HD.
Was this helpful?
Help others find this information sooner.
I've registered my product warranty but it's not showing up in the list of products that I can configure.
Was this helpful?
Help others find this information sooner.
Not finding an answer? Open a support ticket for personalized support of your Peterson product.
Product Manuals
Not finding an answer? Open a support ticket for personalized support of your Peterson product.
Firmware History
StroboPLUS HDC Version 1.0.23
Thursday, September 19, 2024 3:44:37 PM EDT
- Various bug fixes and improvements
- Sweetener OE9. Offset for note B2 changed to -1.9 cents. Was +1.9 cents
StroboPLUS HDC Version 1.0.22
Tuesday, March 28, 2023 7:00:00 PM EDT
- Various Bug Fixes and Improvements
StroboPLUS HDC Version 1.0.21
Tuesday, October 18, 2022 2:00:00 PM EDT
- Various Bug Fixes and Improvements
StroboPLUS HDC Version 1.0.20
Friday, April 8, 2022 12:16:00 PM EDT
- Various Bug Fixes and Improvements
StroboPLUS HDC Version 1.0.19
Tuesday, February 22, 2022 11:16:00 AM EST
- Changes how various parameters are adjusted
- Tempo, Concert A, Cents and Timer adjust in whole units rather than tenths
- Holding IN on the encoder while turning increments in tenths
- Holding Parameter Button while turning changes Tempo Beat Value in Metronome Mode
StroboPLUS HDC Version 1.0.18
Friday, February 4, 2022 2:24:00 PM EST
- Fixes auto-off in metronome mode
- Various Bug Fixes and Improvements
StroboPLUS HDC Version 1.0.17
Monday, January 24, 2022 1:24:00 PM EST
- Metronome: Increases allowed number of tempo maps from 10 to 100
- Various Bug Fixes and Improvements
StroboPLUS HDC Version 1.0.16
Wednesday, January 12, 2022 8:00:00 PM EST
- In tuner mode, default auto-off time-out changed from 2 minutes to 10 minutes
- Various Bug Fixes and Improvements
StroboPLUS HDC Version 1.0.15
Wednesday, November 17, 2021 7:48:00 AM EST
- Metronome now supports setting tempo in Eighth notes, Dotted Quarter notes and Half notes rather than ONLY Quarter notes per minute
- Defaults to Dotted Quarter notes per minute when meter is adjusted to 3/8, 6/8, 9/8, 12/8 etc
- Various Bug Fixes & Improvements in addition to updates included in Firmware Version 1.0.14
StroboPLUS HDC Version 1.0.14
Friday, October 1, 2021 11:23:00 AM EDT
- Fixes battery level meter - was showing lower than the actual battery level
- Auto-Power OFF disabled when in Timer Mode
- Additional Accent Patterns in Metronome for 13/x to 17/x meters
- Alternate Accent Pattern selections save with Metronome Preset
- Shows Tempo Map name with Metronome Preset
- Various Bug Fixes and Improvements
StroboPLUS HDC Version 1.0.13
Tuesday, September 7, 2021 8:00:00 AM EDT
- Various Bug Fixes
- Fixes Battery Level Indicator
StroboPLUS HDC Version 1.0.12
Saturday, June 19, 2021 4:53:00 PM EDT
- First Official Production Release
StroboPLUS HDC Version 1.0.11
Saturday, June 12, 2021 5:53:00 PM EDT
StroboPLUS HDC Version 1.0.10
Monday, June 7, 2021 7:17:00 AM EDT