In reply to MM0GYX:
Fine business Ian.
I trimmed my SW20+ to run at exactly 1 watt from a 12.6V supply - about the voltage from a charged SLAB. I soldered the PCB at the end of last year, but I didn’t get around to putting the board into a case and wiring it up until early this year. I set up a temporary dipole antenna in the garden last Sunday so that I could try the SW20+ and do the RX alignment.
I really enjoyed using the SW20+, I worked 4 stations from the garden (LZ,I,9A & HA). I normally use a RockMite, so the SW20+'s performance blew me away! It’s amazing to hear just one station at a time! The sidetone is very nice too, being a real sidetone and not one generated as a square wave from a PIC. I find that the RockMite sidetone annoys me after a while. I tried smoothing filter on the sidetone, but I found that it cut out the lower frequency ‘program’ tones.
I have decided that outside of my ‘PP3 challenge’ activity, I will use the SW20+ as my SOTA rig of choice. I found it quite difficult to send nicely with my straight key, after using a Palm Mini Paddle for the last couple of Month’s. I have a PicoKeyer chip from N0XAS, so I think I will make up a little circuit board and wire it into the rig so I can use my paddle key. I am quite tempted by the ‘FreqMite’ too.
I love Dave K1SWL’s kits - he is a very clever man, I just wish he had more kits to choose from! I find it amazing that the RockMite started life as a party favour, it was intended as a novelty to build at Lobstercon so they could have QSO’s across the convention site!
I am very envious of your activation today - and I hope the SWL rigs continue to provide great value!
(owner of 3 RockMites, 4 home brew RockMites and an SW20+!)