Solar CDX

QRP TTF 2013

For the 50th anniversary of the Vienna Wireless Society, the club operated under a special event call sign: W5O. As usual, there was a good turn out of club members for both the picnic and on-air activities. We put a couple rockmites, FT817s, and a KX3 on the air, and accumulated 62 contacts in our [...]

Stuffing code into an ATTINY 45

For the QLF project, I had to get my code onto an ATTINY 45, which wasn’t so difficult, but also to free up the RESET pin to act as a digital output, which a bit more doing.

My experience with microcontrollers, aside from some PIC activity a decade ago, has been confined to the Arduino, [...]

QLF (version 1 and 2)

One of the limiting factors in making optimal use of a radio is the number of human appendages that interact meaningfully with the radio, hence the importance of a big knob on the front of the radio and hands to turn it. Morse code operators have known this since the dawn of time and have [...]

VAQP 2013

VAQP 2013 didn’t go quite the way I’d imagined it would, but it was still fun. Getting N1MM set up the night before the event, I was surprised to see fields for an exchange number. I’m pretty sure this was a new feature, and I’m not sure how popular it will be with people who [...]

Significant Other: Firmware

It occurs to me that I’ll likely be writing about the Significant Other project for a while, so it now gets its own category on the blog. I’ll go back and fix the tagging on older posts to be consistent.

The main board and relay board prototypes are in a final enough state that I [...]

TEAPOT: The electronically actuated pneumatically operated transmitter

A couple days ago, before the NAQP-CW, Pete K6BFA mentioned that before the start of the contest, some Boy Scouts would come over to the club station to talk about learning morse code. This wasn’t about working towards a radio or electronics merit badge: they wanted to learn the code for team competitions in which [...]

Significant Other Update: Logic Board

For a few months, I’ve been playing working on a design for a QRP accessory as a way of becoming familiar with both the arduino platform and homebrewing technique. The basic idea was to put everything except a transceiver in one box, so I couldn’t leave anything behind when operating in the field. I [...]

Significant Other Power Supply

Initially, I hadn’t given the power supply for the Significant Other project too much thought: I was more focused on the microcontroller, relays, and so on. After going for maximum efficiency with these components, though, it began to annoy me that it would be very wasteful to use an LM7805 regulator to bring lead acid [...]

Sky House: Arrival

The Nerkspedition to Sky House is underway. We arrived in LA a couple days ago and drove up the 101 to around San Luis Obispo yesterday. The final road to Sky House is a long, winding dirt road that hairpins its way up a mountain to a fabulous house that overlooks neighboring mountains, Morro Bay, [...]

Field Day CW Totals

We’re still assembling the total number of contacts from FD 2012 because the SSB and CW stations were not networked, but here are the totals for the two CW stations. I’d say we hit our goals and then some.

 

The 80/20/10 station

Mhz Contacts 3.5 279 7 304 21 15 Total 599

The 40/15 [...]