Upgrades for HackRF-One 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 stand-alone operation.1 MHz to 6 GHz operating frequency. Half-duplex ceiverUp to 20 million samples per second. 8-bit quadrature samples (8-bit I and 8-bit Q)Specifications:For GNU Radio, SDR#, and the likeSoftware-configurable RX and TX gain and baseband filterSoftware-controlled 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 expansionHi-Speed USB 2.0USB-poweredOpen source hardwarefor HackRF One 1 MHz to 6 GHz SDR platform software defined radio development boardAbout for PortaPack H2:Description: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 for-original 2nd generation H2Support the latest official firmware upgradeSpecification:3.2-inch TFT240*320 screenNavigation switchAudio outputMicrophone inputDC 2.1 interface4-layer gold plateType:B:With 35DBi GSM/3G/4G Antenna/A:Without 35DBi GSM/3G/4G AntennaColour:BlackMaterial:PCB+electronic components+Metal Package Contents:1 x Assembled for HackRF Portapack H2 + for HackRF One 1MHz to 6GHz SDR1 x Telescopic Antenna1 x 35DBi GSM/3G/4G Antenna1 x Micro-Usb Charging Cable/1 x Assembled for