raytheonbbn / hammer Goto Github PK

Add setting to allow the user to implement and adjust an audio preamble to overcome radios that may be slow to break vox and squelch thresholds (UV-5R).

Essentially a tone or white noise that precedes the data burst, the length of which can be adjusted in-app.

Howdy,

Hardware:
2x Pixel 3a
2x AnyTone 878UV
2x BTECH APRS Cable

Versions:
ATAK - 4.3.1.5
Hammer - 4.3.1
GrapheneOS - Android 11

This feature request is based off of an issue I am currently having. When transmitting CoT markers or messages, the receiving radio returns "Error: src.length=8000 srcPos 4143 dst.length=2000 dstPos=0 length=3857", and "Error: bad checksum." I have heard the audio output of one of the radios and it seems like the packet header is not fully transmitted with the packet. I am aware that VOX has an inherent delay, and on my radios the minimum delay is 0.5 seconds. I believe that the Hammer CoT packet header is less than 0.5 seconds in length and does not fully transmit across the radios.

A note on APRSdroid:
APRSdroid has mitigated this issue by adding a preamble time to open up VOX on the radio. The length of the preamble is adjustable based on the user's requirements. My feature request is that a similar adjustable preamble timer should be added to increase the compatibility on VOX based transmissions in Hammer. It seems as if it would not be too difficult to implement as it is simply adding time between Hammer outputting audio and when it begins sending data.

For any further questions in my testing environment, please leave them below. Thanks development team for this product.

When loaded I am able to send self position markers for a period of time, however after a certain amount of time, the audio is disabled.

Of course I've spent two years trying to make the Hammer plugin work with a specific hanheld radio. I finally crack and vent my frustration here online, and then an hour later figure out what the problem is. I have Yaesu VX8-DR radios, adapters that convert the speaker/mic. plugs to a 3.5mm plug, and a digirig device with a Yaesu HT adapter, a Samsung Note 9, and a short high speed usb-c to usb-c data cable. The final solution that fixed it all and made it work was to add a toriod to each end of the usb-c cables.

I was able to get it working by changing constant here: https://github.com/raytheonbbn/hammer/blob/main/app/build.gradle#L12

Trying to install it on Android 9 device, but it's not available.

ATAK.MIL 4.4.0.8

Baofeng UV-5R
Connected via APRS cable
VOX - 1
SQUELCH - 1

Sample rate: 4000
Padding milliseconds: 2000

All I get is:
"HAMMER: error receiving message. Details: failure copying array." And the error occurred on the receiving device as soon as the preamble tone is received.

It seemed like previous versions were running a much slower sampling rate; 1200 - 2400 baud, but if I set anything lower than 4000 in this version, the app crashes.

I had success with the older version before the sampling rate and padding options were available.

When trying to chat, I click on the text entry and the keyboard comes up. The entire screen shifts upwards, and top menu is no longer visible and there is no obvious way to make keyboard disappear to press the "send" button.

Hi, I'm Denis (K0TX) - a ham behind digirig project.
The interface's sound card works with Hammer Plugin, but there is also a serial COM port that allows PTT by RTS signal or CAT with the capable radios. My question is if it would be possible to modify the plugin to allow these additional more reliable PTT methods?

Error was on installing the plugin, along the lines of: Unable to parse