Yes, GPO2 will have to be freed up for the mixer. Filters are planned to be controlled in the future using a port extender. There is no concept yet of how this will be configured in the firmware. In any case, it will be in version 4.21 Thanks for the response. - Is this the same for the ATS25 Max D...

Hi, For general interest, do you have a proposed block diagram for using the add-on mixer with the ATS25-AMP or is it assumed that the connections are made directly to the SI4732 inputs, bypassing the ATS25-AMP filters and LNA? The GPO1 and GPO2 control signals on the ATS25-AMP are used as previousl...

Hi,
In CB mode it allows you to select NFM. 73, Dave

Hi, Thanks for the reply. Yes, I initially thought that the hardware was only required for the VHF bands down conversion, but this will be for AM and SSB/CW modes. For NFM which will be using the FM tuner, I also see that frequency conversion will be required. Again I had assumed a patch had been ge...

Hi Paul, For the VHF bands, additional hardware is required. A basic implementation is shown in the attached link, consisting of an NE602 mixer IC and an SI5351 frequency synthesiser IC. http://forum.harduino.ru/viewtopic.php?t=11&start=22 There will probably be add-on PCBs made in the future wi...

Please provide the connection diagram of the mixer in your receiver so that I can understand if it works correctly Hi, Perhaps that is the problem. I have not implemented any mixer. It looks like I wrongly assumed that the CB and 10M pseudo NFM would work without any hardware changes, but that obvi...

Hello, I would like to purchase a key for the ATS 25 Amp as I have installed new firmware 4.2 beta. I am in the UK. Thanks, Paul Hi Paul, The ATS25-AMP should come with a key, so there should be no need to purchase one. I installed V4.2 AIR beta with no issues, the 15.04.2024 release fixes an issue...

A general question on the pseudo NFM for CB and 10M. I did a quick test, with CB band, AM mode selected on the ATS25-AMP and with the TinySA set to AM modulation a clear 1kHz tone was received. With NFM selected on the ATS25-AMP and with the TinySA set to NFM modulation, no tone was received. I did ...

Hi,
I have tested the updated V4.2 AIR beta release 15.04.2024 and it seems to have fixed the issue with the filter selection.
Thanks very much.
73, Dave

Hi, I have updated my ATS25 AMP to V4.2 AIR beta. The installation was fine and "ATS25 AMP" was selected in the setup on the receiver. Everything appears to be working correctly, but I have noticed a minor issue. Switching between various options seems to result in the wrong values for the...