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Now that fall is in full swing and most.....typo alert remove  "and most" (thanks to Gary at rework eliminator for Elecraft K2)and soon all the leaves will have dropped from the trees. The temps  already are starting to drop not yet to freezing but soon. So outdoor activities will be more limited as winter gets her firm grip on this QTH. 

Serial 7372 soon in the works

I find that radio conditions do improve in the winter months and there are some major CW contest to keep me busy on some of the weekends....but.....I don't know about my readers but I also like to have a few winter radio projects on the go. This winter's project is an ambitious one that satisfies my kit building hunger. I purchased another Eelecraft K2 kit, my first K2 kit was a blast to build. With this kit I want to take my time and very much enjoy the build. Another decision I made was to sell the rig once built and run through it's paces. I then can use those funds to put toward my next winters project. I try to keep what I call my well rounded approach to ham radio. This includes on air operating time for sure, reading my monthly ham radio

K6XX's kit for the K2

magazines, blogging and blog reading, interfacing computers with the hobby and of coarse kit building. I also wanted to add a CW tuning aid to my original Elecraft K2 and it just so happens that K6XX has a kit to add a CW tuning  indicator to the rig.  This kit has the dreaded SMD parts!!!! Now having said that I used to say that about kits that came with winding toroid's and that is not a big deal anymore. Below is a video of how the tuning light works.

Up and running

I have decided to add an additional page to my blog giving access to the KX3 videos. This way they are available for anyone who is interested. This way you do not have to go and search all through the blog to find them. For that reason the 4th video is not on the front page of my blog but rather on the KX3 video page and you will find the tab at the top of the blog if you wish to go there for a look.

Well the KX3 is almost completed and this is the 3rd of a 4 part assembly video of the radio. In this YouTube video I go over the problems I had with the ATU installation, the roofing filter board issue and the battery holder oops I had and needed to correct before there was damage. The build is almost complete but have a look and either get excited about purchasing one or pick up some pointers before you do  your build.

This is my first time using Imovie  with my Mac computer to edit a video. There are many great things that can be done using this program, things that over time I am going to have to learn. This is part ONE of a four part series. I am working on the editing of part two now and hope to add more flavor the the movie. Part ONE is a little long but now I have the hang of how to edit and shorten them.

Someone is going to be busy this weekend with a kit!!

Charger ready for testing

I have built  A&A Engineering's 1 amp Smart Battery QRP charger mainly for my Elecraft K2's internal battery. This very much is a smart charger and here are a FEW reasons why.....

1. The charger can be connected to the battery indefinitely and no harm will come to the battery. Once the battery is fully charged the Smart charger will remain in maintenance mode delivering a float charge. Therefore the battery cannot be over charged.

2. The charger can stay hooked up to the battery while operating the radio if you so choose to do so. The charger will enter the bulk mode to help with the load of the radio operating.

3. When the charger is connected it automatically determines the type of charge the battery needs.

Close to done but no heat shrink on LED

 The charger can either be ordered fully assembled and tested or as a kit.....yours truly held true and strong the the QRP spirit and chose the kit. The kit did arrive very fast and all parts were checked and accounted for. If you are a first time builder of  kits this may not be the one for you as the instructions are vague at times. I did get myself into problems after  realizing I had missed part of the assembly and had to go back to add parts and two jumpers. The kit does not give you the "standard" step by step instructions regarding assembly. It's more or less tells you too "install the components according the the pictorial diagram".  There are even little side notes here and there one in particular relating to jumper installation that I totally missed. I did get the charger all together and it was time to check the unit out. So I plugged the charger in, turned it on and ........no 12 volts DC from the leads on the charger!!!!

Top view with no jumpers or D1 ops

Fried resistor

 It was time to check the board to see if parts were installed according to plans and if all solder joints were good and soldered. All seemed to be good so it was off to the internet to see if anyone had the same troubles. It was on the internet I found a test procedure for the kit version of the  charger from A&A Engineering. For some reason beyond me I am not sure why this was not included in the kit!!! Anyway.....one of the things what was emphasized was if the charger is not hooked up to a load you will NOT get any output. Well that solved the problem of no output and things now seemed to be "normal" There was a test procedure in the text that

Decided to use Anderson conn's

allowed you to see if parts of the charger were working as they should. It involved removing the IC and shorting legs of the IC 16 pin socket to certain areas of the circuit board. When this was done certain voltage reading should be observed or LED's should turn on. Here is my BIG problem with this type of testing......when you short things out things can go WRONG and they DID!!! I guess I was not paying close attention and I shorted the wrong pin on the IC to ground and I FRIED a resistor on the board. When you short out to test I call this a destructive way of testing I much more prefer using a meter to look for certain voltages. If  you either don't get the right voltage or a down right outrageous voltage you understand
either:
1. You are in measuring in the wrong place.
2. You have made a mistake in the assembly.
In either case nothing has been toasted

Some heat shrink fun

In the end all checked out ok with the Smart charger and it working great to charge my Elecraft K2.  Over all this is a great unit even with the hiccups that I had. Some of the things that are not clear in the instructions are as follows
1. The heat shrink tubing is very clearly stated to go on the transistor but it also should go on the leads of the LED's...that was not so clear and I have redo the LED's.
2. Make sure you add the jumper J1 to J2 in my case it is mentioned but off to the side of the instructions
3. There is no diode to be installed in D3 position, instructions just say install parts and there are is D1, D2 and D3. Just install the diodes (both are the same diode) one in D1 the other D2.

D1 needs to have the diode not D3

4. If  you ordered the QRP version of the charger as I did you will get a separate kit that allows the charger to switch between two charging currents. Read those instructions and install the resistors they tell you too or you will end up removing resistors if you follow the main instructions then move to the add on kit instructions as I did.
5. When done remember the output leads will SHOW NO VOLTAGE UNLESS A LOAD IS APPLIED.
6. The document required to test the unit can be found at the link above under "test procedure". BUT when  you do it be very careful!!!

Finished product

A few months ago I built and blogged about my  QRPometer build from the 4 state qrp club its a great kit. In the post there was only 2 con's that I could think of regarding the kit.
1.The TX and Antenna connections were RCA and not BNC, the kit now ships with the RCA to BNC      adapters.  
2. The meter did not come with a case and the rear of the meter had an exposed circuit board. I felt this left the meter vulnerable to damage.