This is the biggest drawback for me so far.
I purchased a Foretrex 901 with AB a week or so ago, and despite being a "simpler" device than a Kestrel 5700, its not been the easiest introduction so far.
I have to say
@DocUSMCRetired has been superb in the AB support department, whereas
@Garmin have been lacking. I have yet to get any responses from Garmin on issues noted.
For the benefit of others, here are some things I didn't know before buying, but I wish I had:
- Getting identical outputs from the Garmin and a Kestrel is impossible.
The "rounding" of data is something I have experienced, even with all inputs and environmental identical. I know the differences are less than a click, but something in my engineering nature really bugs me about that. If I put the same mathematical sum into two different Casio calculators, I would expect the same result. So I still don't really get why AB on my Kestrel 5700 and the AB on my Foretrex 901 give different results.
- Target card
Unlike the Kestrel 5700 Elite with AB, that can hold up to 30 "sectors" (different target cards of up to 10 targets), the Garmin 901 Ballistic edition with AB can only hold a single target card. This renders the Garmin almost completely unusable for my needs in PRS style matches. With the kestrel I can input the whole COF the night before in the hotel, and save myself loads of time on the line inputting distances, that can be much more wisely spent on watching the wind or stage prep.
I get that when the Vectronix Vector X binos finally make it to the market in significant numbers, there should be the functionality to ping the targets one by one and fill the target card with distance, DOF and incline instantly.
But for now, given that the Kestrel is a far older design, I would have expected the Garmin to be able to keep up and enable more than one target card on the device. There are several AB LRF devices that will do this. My Fury's would send range, DOF and inclination to the 901, but the connection was somewhat unreliable when the fury's went to sleep and I had to wake them back up. My vector X binos connection has been rock solid with the 901. There is a bug in the target card page of the Garmin. It will receive DOF, but deletes it when you select the next target. I believe Garmin has been working on a fix for this in a software update.
- Environmental units of measurement within the AB section of the Garmin can not be changed. Temp is stuck in °F & Station pressure in HG. Perhaps not an issue in the US, but in the UK everything else is described in °C and Mb.
you can change them. 4th page from the map. SETUP/APPLIED BALLISTICS/INPUT UNITS: CHOOSE METRIC. You'll need to do the same with WIND UNITS if you want those KPH.
- The Garmin "Tempe" sensor only provides the Foretrex 901 with ambient temperature, you still need another separate means of reading the ambient station pressure and humidity. Disappointingly, this means you probably need to get those figures from a Kestrel or at least someone else on the firing line with a Kestrel. I know the readings aren't likely to swing significantly in the day, but still, at the price of the unit, I would hope it could take all these readings itself, or at least the additional $40 sensor could pick up more than just ambient temp.
- The Calypso Mini AB can provide Ambient temp, and Humidity as well as wind to the Garmin, but still not Ambient Station pressure. As yet I have not been able to get the Garmin and the Calypso Mini AB to work together to provide ballistic data for wind calls. I believe this connectivity may have been released in the update I am struggling to do.
- Garmin suggests that updates can be carried out wirelessly through their "Connect" or "Explore" app's. My experience has been that this is incorrect, the explore app just directs you to the connect app, and the connect app tries, but after 7 hours was still unable to fully push the update to the device. I know it can be done through a PC connection with Garmin Express, but why advertise that it can be done wirelessly, when it cannot.
The first time you update has to be done connected to the computer, after that it's wireless from the app.
- If you have a mobile connected to the Garmin, and one of the Garmin app's open on the mobile, if you switch off the Garmin on the device, it will immediately power back up and continue to do so until the app is closed on the mobile and connection severed. A bug no doubt, but as Garmin doesn't respond within a reasonable time frame, I wouldn't expect it to be fixed any time soon
- I have also noticed, that if a mobile app is connected to the Garmin, when changing target distances, you can only scroll 1 yard/meter at a time, instead of holding down to scroll by larger increments / more quickly. Doesn't sound like much hassle, but clicking down 950 times when I switch from Centrefire to Rimfire shooting is a PITA!
- The Garmin/AB synapse app can only send profiles created in the Synapse app to the Foretrex 901. It cannot pull profiles from the device to back them up.
- Currently there is no way to sync AB profiles across different brands of device. So if you have a fully trued profile on your Kestrel, you will have to go through the process on the Garmin from scratch. You should be able to pull from kestrel to AB synapse app. Maybe I need to take another look, but I think that's how I loaded all my profiles.
I think it has the capability to be something truly great, but right now it has too many issues which result in significantly slower operation than my Kestrel 5700 Elite. I am going to persist for another week trying to find work arounds and fixes, but if that fails the Garmin & Tempe will be returned and go back to using the Calypso Mini AB with the mobile app, and the Kestrel for ballistic data.
On a separate note, does anyone know, can a Kestrel, paired with a Kestrel HUD, and the Calypso Mini AB, show live wind on a full target card with wind speed/direction data from the Calypso?