Features: Mini Round antennas set, small circular antennae, tuning rings, radio receiver antennas. The UHF segment is from 400MHz to 470MHz, and the VHF segment is from 80MHz to 150MHz. 2Pcs (1xlarge and 1xsmall), with vhf segment diameter of 10cm and uhf segment diameter of 5.0cm, capable of firing. Craft from quality material, can provide effective signal reception and minimize interferences. The interfaces is SMA male connector with needle. Specifications: Material: Printed Circuit Board The diameter of segment VHF is 10cm/3.94inch The diameter of the segment UHF is 5.0cm/1.97inch Frequency: 400M-470MHz 80M-150MHz Applicable Model: Suitable for DSP DSP2 Radio Receiver Package Includes: 1 Set Mini Round Antennaes note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.