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The other night while at the radio I notice my Astron power supply for no reason was giving out a loud hum for about 4 seconds then nothing. Now I have two Astron supplies an RS-20 and RS-35 both being beside each other I was not sure which one it was. After a process of elimination I found that BOTH supplies were doing it. This was taking place while the supplies were under load from any my radios during transmit and when both radios were not transmitting. I tested each supply with all radios off and still got the intermittent hum. The other items that are on the same outlet  like my PC did not have any troubles at all. I did see....well I thought I did....the compact florescent bulbs on my ceiling fan flicker.
I thought it was them and it did seem when I turned off the lights it went away.....well that theory was short lived when the power supplies hummed again with the lights off....how romantic is that, lights off and the glow of two Astron power supplies....I digress.... I then ran an extension cord to another outlet that I knew was not on the same circuit as were the trouble was coming from. That seemed to be the fix things the  supplies are running great now with no more hum. As I write this post it seems that the over head compact florescent light (that is on the same circuit) has a flicker to it. I changed the bulbs to incandescent lights and the flicker is still there. I checked the voltage at the outlet and it is 120.1 volts AC. I have gone down to the main panel and checked all the connections and they were fine.  I am going to have to investigate loose connections and neutral troubles on this circuit this weekend.  But for now the Astron supplies are running just fine on the other outlet. 

It is a very rare event when I am able to spend a majority of the late afternoon and early evening on the radio. Julie and rose this morning to do a much needed house cleaning once that was done it was time for a walk. It's September and the weather is starting to change on Saturday it was 38C with the humidity but Monday it was a nice 18C. After our walk it was  hobby time for both Julie and I, her with photography and me ham radio. I began by starting the PC and opening up the QRP spot website. I noticed a spot for VA2OTA who was activating a summit for summits on the air. I tuned to 14.060 for a listen but was not able to hear anything...... according to the spots he was there and looking for contacts.
So I setup VFO B on the k3 for 14.060 using my new Grove HS-900 antenna. This way I was able to listen for VA2OTA with in my right ear and on VFO A cruise all the other bands for contacts with my left ear. While waiting for VA2OTA my left ear picked up 4O3A at 14.019 I gave him a call and he came right back with a 599...not bad for 5 watts and an attic dipole. It was a very short QSO as he had many in line
waiting for him. I was hearing some action in my right ear but it was only other stations working VA2OTA so it was off to VFO A again to see what was out there. 40 meter was not to busy as it was still early so back to 20 meters. I came on a QSO that was just ending so I waited and called Vito ON6VL he came back to me and gave me a 559 report. Conditions were changing and Vito was starting to loose me so we ended our QSO. It was back to the computer and someone who posted a spot for VA2OTA said they had to use the audio peak filtering on their K3. That got me thinking and I not only used the APF (a link to YouTube for an example) but diversity mode as well. BINGO it worked at 14.060 VA2OTA jumped out of the noise floor. Now mind you it was...JUST....above the noise floor. I waited for my turn as there was a line up wanting to make contact. I gave him a call and he came back to me we exchanged reports and that was it.  So over all the radio time was a success.

All done... an event worth celebrating

In my last post after installing the general coverage receiver in my K3 and all was

Before the change

After the change

put back together I realized I had not put the filters in descending order. For some reason I started with the 2.7khz and then the 6.0khz. So it was now time to disassemble the K3 AGAIN to switch the order of 2 filters. While the rig was apart I also wanted to open up the sub-receiver....what the heck eh. It has it's own set of filters which had to match the main receiver's order of filters.

The sub-receiver apart filters switched

sub-receiver back together now to change labeling

All of the sub-receivers filters had to be moved down one slot. The "event"  went a bit more smoothly this time it was like I had just taken it apart.....wait....I just did!! All is back together now and working great.

KBPF3 board

The mess

About 2 weeks ago I emailed my order into Elecraft for the KBPF3 general coverage board. It arrived on Thursday and was placed off to the side until Saturday. I did my reading to familiarize myself with the installation. It seems I was not familiar enough as I made an amateur mistake but more on that later. My K3 has the sub-receiver installed so I have the choice of putting the general coverage unit in the main or sub receiver. I choose the main receiver. So the first order of business is to get the work bench all cleared off and get the K3 on it. That is easier than it sounds as the back of the radio desk is a snake of wires and cables. Before taking ANY cabling comes off the K3 I made notes of where all the cabling came from and went too. In the past  it was delusional of me to think I can just "remember" where all the cables went on the

K3 hookup

back of the K3. So it was off to the bench with the K3 and the ESD band went on!! Removing the top cover was very straight forward and exposed the insides of the K3. Now I don't know about you but I am never thrilled about digging into the K3 and adding and removing parts. The Sub-receiver was the first item to be removed. There are 3 TMP coaxial cable connections that have to be removed. Unfortunately I have nice fat farmer's fingers I managed to remove the cables and pull the sub-receiver out.  This exposed the main K3 board where the KBPF3 was to be installed and a new 8 pole

Top cover off

6khz filter to be added. The general coverage kit came with 2 standoff's for mounting the board but in Elecraft's wisdom the standoff's were already on the main board.,so that was one step I could forget about. The KBPF3 board fit into place very smoothly the only concern was mating the KBPF3 connecting pins to the main board. That was done by feel and was only known if it was done correctly when the stand offs on the main board matched the holes on the KBPF3 board. Then it was time to install the 6khz 8 pole inrad filter. The filters have to be installed from wide to narrow. This meant it

Sub-receiver

was time for me to move filters around to accommodate the new wide filter.  Removing a bottom cover was in order to expose the filter's fastening screws.  With the KBPF3 board in, sub-receiver back in....just a note of caution make sure the plastic cover is  on the battery on the K3's main board. If it inadvertently came off and was left off it will come into contact with the sub-receiver's case and that is not good. Next all the covers went on

KBPF3 installed

and it was time to hook the radio up and turn the general coverage board on in the K3's sub-menu's. Also setup the new filter within  the elecraft software. This is when it hit me....I MADE A VERY AMATEUR MISTAKE!! The filters have to be installed wide to narrow bandwidth. I checked out my pictures and sure enough for some reason (brain dead

Note the wrong order of filters!!

moment) I have the 6khz filter after the 2.7khz filter. I have not done it yet but I have to take the whole radio apart to switch the two filters around. After that mistake I stopped for the evening I won't check out the general coverage until the filters are switched around.

Bottom cover off

CLICK TO ENLARGE PHOTO'S FOR THE FULL AFFECT.

F-16

This past Sunday Julie and I were off to the Waterloo Air Show . The weather forcast was very iffy and seemed the show may be cancelled due to severe weather. The sky's were very dark most of the morning as we toured the aircraft on the tarmac but we were told it was going to clear. By the time the show started at 1pm there was sunny periods. We did come prepared with rain gear, umbrella and the specialized rain gear for Julie's camera stuff.  We had what was called flight deck seating...translation VERY up close and personal with the aircraft and NOISE. Below are  very few (1300 in total) of the snap shots Julie captured during the airshow. The American F-16 Viper, Canadain Forces CF-18  Fighter, the

CF-18

Harvard, flying in a four team formation, the P-40 Kitty Hawk and the Canadian Snow birds team.

F-15

The Harvard

Snow Birds

P40 Kitty Hawk