By Wander Lúcio Gomes. (PU4WLG)


Make your radio new again!

DDS-VFO kits are out of this world and the best way to upgrade or expand your old radio so it has a

new life and look.

This is a great project for those of you who want a full functioning VFO for your radio. It can be as simple or as full featured as you like. Lets say you have a favorite radio but the Pll is dead and it will cost a lot to repair it, no problem, with the DDS-VFO you can, and cheap! Another example is your Channel display is out and you don't want to pay the high price of getting a new one, no problem...just slide in the DDS-VFO and your done!

The new version has been fully customized to adapt to various radio models, including HF radios. This version allows a frequency adjustment for bandwidth mode with limits from 0Hz to 99MHz, it also allows removing the Channel mode and Radio Receiver mode, remaining exclusively for a VFO mode.

In general, this version has:

   Channel Mode, VFO Mode, display your call sign, band Scan, spectrum scan, selectable

channel scan, priority scan

   HF Receiver Mode  (mixer not included, but easy to build or purchase from us!)

   Polyphonic roger beeps

         A settings / Service Menu with 29 items

includes several adjustments that can be made by the user, such as:

lock / unlock clairifier, choose between roger beep tones or leave in a random mode, Turn on / off frequency in Channel mode, limit TX time, control brightness of screen, set high and low frequency range, 2nd output for Transverter to name a few.



Ver 6.79 programmable channel scan!

Comming Soon!:

Dealer site login

Log into the DDS-VFO dealer site for kit dealer specials and custom information!

( All radios we modify meet FCC part 95 regs for frequency range 26.965 to 27.405 ).

All of the componants of each kit we send you, are tested 100% In house before we ship.


Email  for more information and kits.


Sold, Built and  Installed by Troy Radio Service right here is the U.S.A!   Firmware by PU4WLG.      

Outside the U.S.A

Click here:


DDS-VFO is intended for receive only operation if being used in “Class D citizen band radios inside the U.S.A” Operation other than receive in Class D citizen band radios inside the U.S.A may constitute violation of part 95 FCC rules and regulations.

Information contained on this website is for technical and educational purposes only.


Note, we recommend the 0.96" display size for most

mobile and base radios. Some base radios 1.3"

To order one of our DDS-PCB's, click the order button below and order what you want. When we get your order we will send an invoice for the shipping.

                    Autherized DDS Dealers!

Puertorico: Torqui Electronics 787-486-5985

hours 9am to 5pm Atlantic standard time



The Radio Garage

We are swamped! Contact  customer service before you send in anything. Thank you!

Please read our TOS prior to purchasing. Click and Read here:

Labor for installing DDS-VFO as of 2023 to your radio is between 55.00 to 95.00 if it is on the list,  call  to check if its been added to the list or get an estimate.

Cobra- 25,29,138-139XLR, 142, 148F. Galaxy-DX66, DX88, DX94, 98HVP, 979, SSB-Echo. Uniden-Grant, Grant-xl, Washington all, PC122. Ranger-69, 2960. RCI-X9, 39, 69HVP, 99N4, X9, 2980WX. TRC-453, 457.


DDS-VFO Videos!


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