The base station updates occur once every 10 seconds and are fixed in the firmware. That is what you might have been seeing. For a walking recovery it's not noticeable but if one is in or on a vehicle a little delay could be noticed. Kurt
The first time couple of times I used my TRS with the base station the updates seemed that they were about every second. The last time I used it, they were much more infrequently. I will have to go back and see if they were 10 seconds apart (I had a video camera running).
Here is an excerpt from the LCD user manual that would indicate one second (or so) intervals would be normal:
"The final number on the top display is the number of elapsed seconds since the last fix. If
you’re getting constant data, this is going to be a zero, and you will hear a nice beep every
second or so. Once your rocket launches and you lose GPS lock under boost, the beeps will go
away, and you’ll see the counter start incrementing. Typically, in 5-20 seconds depending on
the speed of your rocket you’ll start hearing the beeps again, and the position will update.
When that happens, the timer will reset to zero again."