OK, I’ll give it a shot!
Apparently Kjell LA1KHA and Aage LA1ENA had been discussing mimimal power SOTA activating for a while, around 10 years ago.
Kjell LA1KHA activating with RockMite 30 powered by a PP3.
Kjell shares his experience on a reflector thread -
Richard G3CWI posts about activating with a RockMite, Kjell LA1KHA puts forward his idea for a challenge - How many QSO’s on a single Alkaline 9V battery.
Kjell puts forward the rules for the challenge -
Contest - Most QSO’s on a standard PP3 battery.
Open to all SOTA activators
All SOTA summits allowed.
Conventional PP3/MN1604 Alkaline 9V battery, any brand, non rechargeable.
Only one battery is allowed, and it should supply the entire station i.e. Receiver, transmitter, tuner, keyer, etc. (But battery for cell phone, flashlight, etc allowed. )
Any antenna type , but no fixed installation allowed.
QSO is exchange of call sign, RST and CFM/ RR
Main rules must be fair play , honest log and have fun.
The goal is to show that even a small and simple station should be able to make contacts.
Almost immediately, Richard G3CWI begins operating with his home brew rig named ‘Top Gun Special’ and Energizer High Tech 9V battery.
LA1KHA and LA1ENA visit the G-QRP convention and it prompts activity by G3CWI, at the same time M1BUU gets interested in the challenge and decides to build a rig.
30th December 2011
Colin M1BUU(M0CGH) does his first activation with a modified Small Wonder Labs RockMite 30
At end of 2011 stats stood -
1st G3CWI Richard 405 QSOs
2nd LA1KHA Kjell 402 QSOs
3rd LA1ENA Aage 50 QSOs
4th M1BUU (M0CGH) Colin 7 QSOs
Kjell LA1KHa sends Richard G3CWI his prize - a copy of ARRL’s More QRP Power
Colin M1BUU starts activating with his home brew rig - MRM-39
25 February 2012
M1BUU unveils 17m Challenge rig - it kinda works, but not really a success
Tom M1EYP does his first PP3 activation using a modified RockMite 30
M1BUU uses a new, untested, specially modified RockMite 20 and works Barry N1EU, 36,000 miles per watt!
Kjell reaches 575 QSO’s on battery #5
M1BUU (M0CGH) retires his first battery and opts for battery number 2, Panasonic Evolta to begin the Winter bonus period.
M1BUU works N1EU again! RockMite 20, Battery #2
Kjell begins activating with an LNR MTR-3B
M1BUU at 89 QSO’s battery #2
Stats as at January 17th 2018, best score on single battery -
Kjell LA1KHA 575 QSO’s
Richard G3CWI 461 QSO’s
Colin M1BUU 132 QSO’s
Tom M1EYP 74 QSO’s
Aage LA1ENA 53 QSO’s
Apologies for any errors etc!
I think we soon discovered that PP3 batteries just last too long, the enthusiasm for the challenge runs out before the battery!