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portapack-mayhem / mayhem-firmware

Custom firmware for the HackRF+PortaPack H1/H2/H4
https://hackrf.app
GNU General Public License v3.0
3.41k stars 553 forks source link

calls menu #181

Closed kyumo closed 3 years ago

kyumo commented 4 years ago
  1. Is it possible to add all gains controls to this menu?
  2. it will be cool, if you can record all calls, and listen later
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euquiq commented 4 years ago

The CALLS application (not menu) has no audio. It is rather used for detecting close (like NEAR, in cm.) transmissions (i.e. from a keyfob). Regarding gains controls, there are already LNA and VGA controls exposed in there. The missing parameter is AMP (on / off).

I just compiled a test version with AMP ON, and it did not have any apparent influence on detecting my keyfob. Since it is a "close call" concept perhaps this would explain NOT exposing the amp parameter... but it could be done: The app would need a bit of re-arranging, making space for the AMP 1/0 selector.

I wonder if the calls app is already giving its best ... or it can be better. On my tests, detecting a keyfob has been "sketchy" (like not right away, and only 1 out 3 times giving a reasonably spot-on frequency).

What is your experience with it ? I will peek at the code today and try to add the AMP selector or at least have a better informed opinion about it.

kyumo commented 4 years ago

For example, I tried with external antenna to monitor airband, and I found all channels in my location (of couse i knew it before), but It seems to me very useful. And I thought, that it willbe good also to listen all channels.

smannchen commented 4 years ago

This is similar to the uniden close call feature of their scanners. Meant only for short distance. The scanner app already can do what you want, and probably more efficiently. I can say that an audio on/off feature may be useful, and perhaps a frequency logger as well. Most scanners with the close call feature also have audio. I however can't justify putting the Amp toggle in there since testing at close range could potentially burn the Amp.

ArjanOnwezen commented 3 years ago

@kyumo ticket will be closed. Both @euquiq and @smannchen gave good motivations..