You can buy new tuning forks with certification paperwork by visiting our online store.Device that generates sounds of constant pitch when struck Stalker Dual with antennas marked 34.7 Ghz. MPH Bee with counter unit marked Ka band. MPH Python series 1, 2, or 3 or Fs marked Ka Band between antenna connectors. Ka band radars include: Genesis 2 models with antennas marked Ka band or 35.5 Ghz, Kustom Eagle series radars with 35.5 Ghz (or 33.4-36.0 Ghz) frequency marked on side. Stalker Dual with antennas marked 24.150 Ghz KA-BAND FORKS MPH Python series 1, 2, or 3 or Fs marked K Band between antenna connectors.

Eagle series with 24.150 Ghz frequency marked on side. Genesis 1, Genesis 2 models with antennas marked K band or 24.150 Ghz, Kustom Trooper, Kr-10sp, Pro-1000, Pro 1000ds. K band radars include: Genesis VP and VPD. X band are for older model radars usually antenna or radar is marked 10.525 Ghz. Ka band forks are different for each radar manufacturer (i.e. All K band radars use same K band tuning forks. (This is because the radar subtracts the patrol speed of 35 from the closing speed of 80 to calculate the target speed of 45.)Įxample: Using 35 and 80 mph forks, will give a PATROL reading of 35 mph and a TARGET reading of 45 mph How to Determine What Forks to OrderĪll X band radars use same X band tuning forks. With both forks now vibrating simultaneously in front of the radar antenna, the PATROL speed should read the lower speed fork, and the TARGET speed should read the speed stamped on the higher fork, minus the speed on the lower fork.While continuing to hold the lower speed fork in front of the radar, perform step 3 on the higher speed fork and hold it in front of the radar as well.Using the lower speed fork, perform step 3 and verify that the patrol speed displays the same as the speed stamped on the tuning fork +/- 1 mph.Place the radar in moving mode of operation.Repeat steps 3 and 4 using the higher speed tuning fork.Verify that the target speed displays the same as the speed stamped on the tuning fork +/- 1 mph.With a dual antenna radar, either antenna may be used. Lightly strike the lower speed fork on a hard non-metallic surface and hold the tuning fork approximately 1 inch in front of the antenna.Place the antenna in the transmit mode by releasing the “hold” switch or putting the radar unit in “run”.

Place the range control in maximum position.

Place the radar in stationary mode of operation.

The following procedure should be followed when checking a Police radar unit with tuning forks: Two tuning forks are required for a Moving/Stationary radar unit. One tuning fork is required for a stationary only radar. Again, no actual tuning or adjustment is done on the radar. The tuning forks are used as an “external source” of generating a signal and thus verifying the accuracy of the radar’s readout. This is because all 4 manufacturers have different Ka band operating frequencies. Ka band forks are specific to the manufacturer of radar. Any K band fork will work on any K band radar. The tuning fork is made out of aluminum, and it’s length and shape is designed to vibrate at a set frequency each time it is struck.Īny X band tuning fork will work on any X band radar. The word “tuning” comes from the fact that the same type of forks are used to “tune” musical instruments.

The radar is not actually “tuned” but simply verified as being accurate by the use of the tuning fork. Police radar units can be verified for accuracy by utilizing a “tuning fork”.

Tuning fork frequency for 65 mph