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It really depends on the transponder type. Generally it will be one of two methods. Most of the GA transponders such as Garmins 330's you enter the maint menu and have to reset the N number and oct or hex code. In the corp jets with such as the TDR94 series and Honeywells, it is generally...

Lots of good advice above. Just go get the IFR cert. During the cert they can adjust the baro screw of the altimeter to get it withing limits if they are an appropriately rated repair station. Additionally the encoder can be adjusted as well. Depending on the type encoder, most are not worth...

My understanding is the 4K is just for the box, not including wiring, antenna install or installation. You're right the GTX330 is cheaper, but you need to factor in a Navigator installation because the 330 with ads-b needs gps input. So if comparing options, figure both the 330 and a 430...

I read the article too. Mainly about ADS-B "in". What is required is ADS-b "out". It is not just Class B and C where it will be required. Anyone within the 30nm Mode C veil of a class B will need it as well, even if you are just flying underneath the class B. The good news is options are...

Fearless, the short answer is yes. If you do the 327, you will get a new tray and wire harness. If you have an old encoder, it would be a good idea to change that out at the same time - go with the Trans Cal. I would also recommend changing your coax to the antenna. They probably need to...

Yes cold weather can cause it to take longer to warm the tube and start operating. Same goes for the old analog encoders. Particularly if you taxi out with it in off instead of standby - it has no warm up time. Even on a warm day these units take a few minutes before they start working. Most...

Trans Cal's are pretty close to bullet proof. They are more money, but last a long time. See this link http://www.trans-cal.com/prodServ/Nano.html Install manual, Ch 9.6 shows pin for pin compatability with your AR850 assuming it's the 15 pin model. Something else to think about - you mentioned...

I just re-read this series. How exactly do you know you encoder is off by 300 feet. Maybe it is okay, but your altimeter is off?

As mentioned, Narco is gone so messing around with this unit is probably a waste of time. They can be slightly heat sensitive and they are definately voltage sensitive. Generally if they are set on a bench at 28v and you install them in a 14 volt system they are off by around 100 feet...

Okay, pull up the maint menu as follows: Prior to applying power to the SN3500, depress and hold the [BRG] and the [MEM] pushbuttons, then apply power to the unit. Continue to hold until the first maintenance menu appears. This protocol insures that maintenance menus cannot be called up...

I doubt if it's wiring or a connection, and intermitent problems don't only apprear at certain headings. You say the DG was recently replaced. Was it replaced for exactly this issue or for another issue and now you are ruling it out because it is a freshly changed part? I bring this up...

Check just forward of the pilot door - maybe 6 inches forward, about midway point of the door. There is probably no "flat port or pepper shaker" like what you might be looking for. It is just a very small hole in the side of the fusalge. The hole is probably a little less then a 1/32 inch. On...

Since your shop mainly does jets, they are most likely in the habit of doing "in ship" certifications on the ADC's. Which means they run the altimeter up with applying vaccum and also need to apply vaccum to the pitot system as well. As another responded earlier, this needs to be done so you...