MGL Avionics User Forum

Not really that happy with the slow rising edge of the signal you are showing. K-factor in our case is simply the number of pulses per liter of fluid passing through the sender. There are three pulses for every full rotation of the internal impeller. Getting really accurate flow numbers is a bit of ...

It's basically identical to the RDAC XF,
have a look at the XF manual page 6 for details.

Yes of course, both control head as well as EFIS control in any combination you like. I'm taking the design of the T16 with extreme care - this thing must be the best transponder ever right out the box (and the lowest cost). I'm not taking any chances on this one. There will likely be several versio...

I guess early 2021. The design is basically complete - prototype is operational and meets all requirements. Rather good actually. Extremely good jitter performance and also the P6 phase decoder is outstanding (this is quite a critical thing in a mode-s transponder). In order to avoid infringing on t...

If you look on the processor board - you will find a chip labeled CY62... from Cypress. That is a 2MByte static RAM. Next to it you will find a 16374 chip. The latter is used as address/data demultiplexer. It goes straight to the CPU (BGA, nothing much you can do there). Using a very good magnifier ...

No diagnostics for that RAM. I assume you are running the current firmware ? I remember we slowed access to the RAM some years ago were we indeed found issues where it would write fine to certain locations but not to others. But that was noticed as part of production Q/C and never made it out the do...

It is a barometer. It is quite useful if you fly an unpressurized aircraft as it effectively shows you how much oxygen you are getting relative to sea level. Judging by your reading you are somewhere between 4000 or 5000ft altitude. So already down. It's a more useful tool for this than the altimete...

The AUX input is only suppressed if there is incoming RX. It has two levels - one sets the level if there is no audio from the microphones and the other sets the level of the AUX signal if there is sound at the microphones (enough to open the VOX). This way you can set it up so it just mutes the sou...

You did zero the reading with the sensor NOT near a cable ? That is needed to get the zero point exact. You can read the voltage on the signal wire with a volt meter. The zero current point is 2.5V - from here it either increases or decreases depending on direction of the current. The amount of the ...

I did the above mentioned checks using a Challenger lite on my desk. You mentioned the class D/E setting - that is also in battery backed RAM. I wonder if there is not some kind of actual hardware fault, perhaps intermittent. But so far all (except for the delay you mentioned) points to the battery ...