Upgrades for HackRFOne R9: MAX2837 is replaced by MAX2839. Si5351C is replaced by Si5351A with additional clock distribution. A series diode is added to the antenna port power supply.For HackRF One is a Software Defined Radio peripheral capable of mission or reception of radio signals from 1 MHz to 6 GHz.Designed to enable test and development of modern and next generation radio technologies, for HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for standalone operation.1 MHz to 6 GHz operating frequency. Halfduplex ceiverUp to 20 million samples per second. 8bit quadrature samples (8bit I and 8bit Q)Specifications:For GNU Radio, SDR#, and the likeSoftwareconfigurable RX and TX gain and baseband filterSoftwarecontrolled antenna port power (50 mA at 3.3 V)SMA female antenna connectorSMA female clock input and output for synchronizationConvenient buttons for programmingInternal pin headers for expansionHiSpeed USB 2.0USBpoweredOpen source hardwarefor HackRF One 1 MHz to 6 GHz SDR platform software defined radio development boardAbout for PortaPack H2:This usually comes with a new crystal clear case so you can see all the beautiful silkscreen art.Comes with a built in microphone.Has new CPLD code so the reboot button doesn't freeze the device unlike some of the other H2's on the market.This Version of PortaPack H2 adds a 10.00MHZ TCXO FOX 5070 crystal oscillator to the fororiginal 2nd generation H2Support the latest official firmware upgradeSpecification:3.2inch TFT240*320 screenNavigation switchAudio outputMicrophone inputDC 2.1 interface4layer gold plateType:B:With 35DBi GSM3G4G AntennaA:Without 35DBi GSM3G4G AntennaColour:BlackMaterial:PCB+electronic components+MetalPackage Contents:1 x Assembled for HackRF Portapack H2 + for HackRF One 1MHz to 6GHz SDR1 x Telescopic Antenna1 x 35DBi GSM3G4G Antenna1 x MicroUsb Charging Cable1 x Assembled for