Showing posts with label building. Show all posts
Showing posts with label building. Show all posts

8 Feb 2024

2013 at the old QTH

The photo shows me busy in 2013 at the back of the garage at the old QTH.

At the old QTH the operating was done in our grandson's bedroom and building at the back of the garage. 

These days I have a dedicated shack for building and operating .... but the building bit is rarely used!!

21 Jan 2022

Building

The photo shows me building something. 

This must date from before 2013 when we moved QTH.  This was at the back of the garage where most of my building was done.

At the present QTH I have positions in the shack for both operating and building, although I have done little building since my stroke.  I find my fine motor skills and eyesight are not good enough these days.

Operating is mostly with digital modes as I find speaking hard these days. I use SSB and FM/AM, but mostly FT8 and WSPR.

7 Dec 2021

Start them young


This photo may have been on a few months ago. I post in several places and forget! 

It shows one of our grandsons building a radio. He loved it and was good at soldering very quickly. I had forgotten the thrill of hearing stations on something you had built.

15 Apr 2014

Some building in the shack!

For the first time since my stroke last year I decided to build and test something in the shack (other than a loading coil). For my very wobbly self, this is a major step.  I decided to have a go at the Petitico 10 parts rig from PY2OHH shown a few posts back.

Somewhere I have a 7MHz crystal, but I could not locate it, so I built a bench version, for 3.560MHz instead. I still haven't managed to optimise values yet.

On RX the sensitivity with 600 ohm headphones was, at best -70dBm, so a strong signal is needed to hear anything. It was less sensitive with a crystal earpiece. It is possible that further optimisation might yield a few dB more, but this level I expected. The RX-TX offset seems ideal. The only real operating technique, with this sort of sensitivity, is LISTEN (for a good, strong signal) and then POUNCE. I have yet to check TX output power.

 I'd like to try it on 7MHz really and may buy some 7.030MHz crystals from GQRP club sales. On 7MHz I have an antenna and can listen for my signal on the Twente SDR RX in Holland.

The actual results are almost academic. What mattered was that I actually built something with my soldering iron, didn't burn holes in the carpet and, sort of managed, despite my severe balance problems.

I am wondering if I should open the Ultimate 3 Beacon kit box and build it or wait a few more weeks. At the moment I think I should wait. My confidence levels are still low.

The 481THz NLOS test I had planned will have to wait until I feel less giddy I have decided. Everything for now will be shack based.

9 Feb 2014

Building skills - still poor

As a result of my stroke, my building skills are still poor. Today I wound a loading coil for 472kHz on a 110mm diameter former and, frankly, it was very hard work and at the end of it I was exhausted.  Gradually my strength and stamina are returning, but there is some considerable way to go. I think, for now, I should avoid much experimentation that needs much/any building work.

8 Nov 2012

Building requests

In the last 24 hours I've had a couple of requests from people asking me if I'd build some of my projects for them. One person asked if I'd build them a Pipit 15m transceiver and another a 472kHz transverter. Regretfully I had to say sorry that I could not.

It is not that I don't want to. Rather, it is because I don't have enough spare time! I've so many projects on the go currently, and a stack more in my head waiting to get started, as well as trying to live a normal family life doing the usual chores. Then we have the grandchildren who take time, not that we mind this at all.  So, please do not ask if I can build projects for you. I always try to help with advice and suggestions when asked - I try to respond within 24 hours unless I am away -  but I do not want to do building.

Quite a few of my projects would benefit from a small PCB. This is also something that I rarely get around to because I've already moved on to something else. There is probably a small business possible, if I was inclined, designing projects, making a PCB and selling kits. This is unlikely ever to make me rich though and I'd prefer to be a source of ideas instead.