There are times when production cannot keep up with incoming orders. I strive to have orders shipped NO LATER than 10 days from the order date.
Orders are processed and shipped in chronological order. First in - First out.
You will get a shipping notification from the USPS with a tracking number when your order ships.
THANK YOU for your understanding and continued patronage.
| Here is a photo of where we will be in the Tailgating area: | (click for larger image) Horse Track Tailgating Space Number 7727 |
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The NEW Version 4 is currently in production and we are actively shipping orders!!!
The RB_STM32_DVM is yet another Multi-Mode Digital Voice Modem that gives new life to analog repeaters by allowing them to become digital capable. The STM32 has an on-board microcomputer, so there is no need for a separate Arduino or other processor board. This board, plus a platform running MMDVMHost is all that is required.
- Two chains of low-pass filtering. (One for TX, one for RX) These filters are a 3 pole filter with a "knee" of approximately 4kHz.
- 25 turn potentiometers for fine Receive and Transmit Audio level adjustment.
- An easy to solder DB-9 for connection to the host repeater. Includes mating connector and metalized hood.
- RSSI support built on-board.
- New 'clip' circuit to help with RX level adjustment.
Links to instructional videos: Thanks to Craig Gagner W1MSG
 STM32_DVM_PiHat:Special Limited Time Price - $95 This version is customized to be plug-and-play with a Raspberry PI 2/3/4 micro computer board. (The RPI4 is overkill for the MMDVM project) Combined with one of our custom cases, (optional) it makes for a nice, neat compact package. STM32_DVM_PiCase:Special Limited Time Price - $10 This case is designed to cover your Raspberry PI 2/3 with the STM32_DVM installed. Complete Raspberry Pi3 / STM32_DVM Combo:Special Limited Time Price - $325 Note: This price is higher than usual due to the current cost and availability of RPi's This is a complete DVM package which includes: The above comes pre-assembled and ready to connect to your repeater. Note: The pre-loaded software is freely downloadable from - https://www.pistar.uk/ |
| STM32_DVM_NanoPi: Special Limited Time Price - $300 Schematic and board layout This is a complete DVM package: The above comes pre-assembled and ready to connect to your repeater. Note: The pre-loaded software is freely downloadable from - https://www.pistar.uk/ Setup instructions |
| STM32_DVM_USB: Special Limited Time Price - $110 This is a modem board version for folks that aren't running MMDVMHost on a Raspberry Pi. This version requires an external platform running MMDVM host, however instead of plugging directly onto a Raspberry Pi host platform, it connects to the host platform just like other vendor's two piece (filter/processor combo) version via a USB cable. |
| DC-DC Converter: Special Limited Time Price - $8 This is an optional DC-DC converter module for the V3 & Greater boards ONLY that allows powering of the DVM and Raspberry Pi though the radio interface connector pin 9. Maximum input voltage is 24V DC. |
Interface CablesWe now offer cables to connect our STM32_DVM boards to popular radios/repeaters
For use with repeaters. These cables are approximatley 18" long.
*** - Will only work with ORIGINAL DR-1X's, NOT refurbished units or DR-2's. | For use with simplex radios to build "High-Power" Hotspots. These cables are approximatley 18" long.
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All of our products come with courteous and friendly customer service. While product documentation is continuously under development, the user manuals for these products will follow in the same lines as the rest of the RB products in being straight forward and thorough.
I am in the process of assembling a fairly broad collection of connection diagrams for various repeaters and simplex radios. These will all be published on-line for folks to download, easily make the necessary connections to their radio, and configure their software to be on the air with the new digital modes easier than ever before.
My hope is that these products help more people get started with the new and expanding digital modes and their advanced capabilities.
Ordering information:
Secure PayPal Ordering - Use the "Add to Cart" buttons above to make your selections.Quantity can be changed at PayPal after adding an item to the cart.
More than one item may be added to the cart/order to save shipping costs.
Shipping is calculated by PayPal during the checkout process.
Two shipping options are available: Ground and Priority. (Priority Mail is more expensive, but quicker.)
We are NOT responsible for lost or stolen packages.
All shipments are shipped via USPS with a tracking number to the address provided by PayPal.
We have no control over your package once it is placed in the USPS outgoing mail slot.
For more information, Please contact Scott either via e-mail or by phone (814) 444-9460 during reasonable hours EST.
Official Product of Scott Zimmerman / Repeater Builder
Inspired from a similar design: github.com/wojciechk8/MMDVM_pog
Low-pass filter design by SQ6POG
Images property of Repeater Builder.
Logo Design by Elisha Zimmerman KB9WCX
HTML May 3,2023- N3XCC
