Re: [Hackrf-dev] Still hoping for PTT

2018-06-27 Thread Giuseppe Marullo
Agreed, But assuming the hw model could be disabled by a little switch you won't need any software change at all and retain bias ability for rx only applications. If using software is that easy, then there should be no problem to activate bias and tx function at the same time. I guess that not

Re: [Hackrf-dev] Still hoping for PTT

2018-06-27 Thread Chuck McManis
It is a bit more complicated Giuseppe than that. You see there are systems which have active antennas (powered) for receiving. In such a system you can use the antenna bias to provide power to the active antenna elements (typically a filter bank and an LNA). Those are typically receive only

Re: [Hackrf-dev] Still hoping for PTT

2018-06-27 Thread Giuseppe Marullo
> Or to put it differently, :-) If the HackRF would enable the ANT bias > when it was transmitting then it would "just work" as they say. Definitely I would vote for this. Maybe we could "link" the TX LED signal with the BIAS using a little hw "bridge" so not to rely on any sw change. Giuseppe

Re: [Hackrf-dev] HackRF-dev Digest, Vol 70, Issue 14

2018-06-27 Thread Tony Hagen
Reply to message 1: You can make a USB CABLE arrangement for external power supply to hackRF. You need to disconnect the power line from the USB Connector which can be fed to an external 5V 73 Tony -Original Message- From: hackrf-dev-requ...@greatscottgadgets.com Sent: Wednesday,