I like that 300mah 2s cell shown. I best get me a couple for smaller rockets. Query Jim about the MW, It depends on the encoding that's used whether or not it can be directly plotted on a map. Same with the AIM unit. I don't know what the protocol is with the MARSA54L system soon to be available. Direct "no touch" data transfer is helpful to
prevent wild goose chases from "imperfect" data keying.
Jim has much, much, much more experience than I but I bet he likes going directly after the rocket and not messing
with waving the Yagi. I bet he's great at it but it' so much easier to walk (or ride) to a point on a map, get back
and fly the next project instead of wasting time trying to find the last one.
The issue with the 1S cells is they start out at 4.2V and I believe it drops pretty quickly if used with the EF. Power output on the transmitter also could drop in a quicker fashion. If the rocket sits on the pad for a time or it's cold out, might have "some tracking issues".
I bet the 2S 300mah batt would give at least 2 solid hours and leave enough so one can safely recharge the battery.
One doesn't want to drain these things to "zero" as you can send it to the recyclers then. Can't to anything to save the pack. They don't have a discharge limiter.
Believe me, I've done it while software testing, went to bed and forgot for a day. Lost two 1200mah packs that way.
Kurt Savegnago
https://aprs.fi/#!mt=roadmap&z=11&call=a/QCRS&timerange=3600&tail=3600
https://aprs.fi/#!mt=roadmap&z=11&call=a/PARS&timerange=3600&tail=3600