Add to Cart Quick view Oak Hills Research DD-1 Digital Dial, Frequency Counter for OHR QRP Radios Oak Hills Research MSRP: Now: $99.99 Was: Oak Hills Research DD-1 Digital Dial, Frequency Counter for OHR QRP Radios This unit was tested on the air with an OHR QRP radio and it works fine. So I know it will work with the OHR rigs. Unfortunately I do not have a manual for this unit... MSRP: Now: $99.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $99.99 Was: Subtotal: Add to Cart