Posts Tagged ‘New setup’
Station comfort and ergonomics
In this month’s QST I found an article that sparked my interest entitled “Comfort design for your station” This is an area I feel that gets looked over when setting up a station. Most of the time I find we lean more towards how the setup looks as to the ergonomics of the setup. I am very guilty of falling into the trap of setting up a station making sure it looks very pleasing to the eye. After a contest or two and having to sit down at the radio for over 6 hour or more at a time I become very aware that it’s all about ergonomics first and looks later. These days setting up a station most of the time does not just mean a radio but it can include a computer monitor, Laptop and various bits and pieces. Some of the mistakes I made:
Rig and monitor up to high |
- I had selves on the desk and I decided to put the monitor on one of the shelves, it looked very cool but over time I found the slight angle my head was on looking up (just slightly) became a chiropractic issue! I then decided to purchase a moveable arm for the monitor so I could adjust it to any position and this proved to be a great investment.
- Since the radio is the most expensive item I had it front and center on the desk. For me over time I found having my arm extended in front of me was not very comfortable. It may sound strange but the best position for me is having the radio off to my left or right side. My right arm keeps its natural bend as I tune and adjust the radio.
Monitors on swivel arms - I’m not sure about Icom, Kenwood or Yeasu but Elecraft has only 2 heights for the rig……either flat on the desk or with tilt stand (K3) or legs (KX3). For me both are just not comfortable. I wish they would incorporate adjustable legs for custom heights. I did purchase the Elecraft K-pod which fixed this height issue but that was not the sole reason for the K-pod purchase.
Sideview of swivel arms |
In closing there is one radio desk setup that I have seen now and then on the internet and thought for me it would be the best and I say "thought" because it only looks comfortable in the picture and until I was to try it I would not know for sure. It involves mounting the rig right into the desktop and almost having it flush with the desktop. Below are some pictures of this and if you have done this or tried it please post your comments about this setup.
Out on the trail with the KX3
The bike all loaded up |
After loading up the bike the first thing I found out was the kick stand on the bike would not support the bike and the loaded side bags. It turned out to be a fine balancing act when it
Diamond K400 mount |
Here is a list of the items I am packing:
KX3-on it's own with no Pelican case
Extra battery just in case- The Tracer battery pack
18 gauge counter poise- only for 20m at this time
Pens, paper and 3x5 cards with programming Kx3 instructions
Headphones- I don't use ear buds as my hearing is not that great and any noise around me tunes out CW.
Trunk lip mount base for antenna- Diamond K400
Miscellaneous items- antenna connectors, adjustable wrench, tire repair kit for bike, hat, sunglasses and so on.
Lets get to the trail adventure..........I was able to bike to one of my pre picked spots down at the Lake where a nice size picnic table was available. The antenna mount setup worked great on the bikes rear rack which I mounted back at the condo in case there was issues. I attached the counter poise via a male female 14 gauge connectors. The rig setup was straight forward as I have done this many times in the past. I fired up the rig and I wanted to see at this point if the counter poise was sufficient for a decent SWR and it was. BUT after
The setup |
The surprise error code |
There is a good idea out there…….
Trying to find my way around |
That's better |
Doing the MFJ loop happy dance!!
For some time now I have been trouble shooting my MFJ 1788 loop off and on. I have had a problem with getting 20m to tune. The best I could do was an SWR in and around 12 to 1 and really that is not good at all. Even with that SWR the K3 tuner was able to drop it too a flat match but odd things were still happening....for example
1. Tuning the loop for max noise (as low SWR was not happening) did happen but as soon as the rig was tuned in any way the noise dropped to nil.
2. Once max noise was achieved and I transmitted the max noise was gone again.
3. There was no spots on the Reverse Beacon Network while giving the tuned match a go.
4. When transmitting power levels were all over the place from 1 watt to 5 watts.
I had posted my 20m tuning problem on 2 loop user groups and had some great advice but nothing seemed to even come close to solving the problem. I then emailed MFJ who very promptly emailed me back and advised me to change the shape of a 12 gauge copper loop that was located inside the loop. Easier said than done this involved removing half the plastic cover on the loop and changing the shape of this loop then
checking the SWR. The hard part was trying to figure out where the sweet spot for 20m was on the loop was. The loop would read an SWR of 12 to 1 no matter what adjustment I gave the loop. I ended up tuning the loop for the highest noise level I could hear. I figured this was as close as I could get to the sweet spot for 20m. Adjusting this small loop did not really change anything and I was getting frustrated! The best thing I find when this happens is to put the project aside and do some thinking. I did just that over the past few weeks I enjoyed the bands the loop would tune and thought about my next move. The loop consists of a rotating capacitor that tunes the loop via a motor. I had been reading on the loop reflector sites and a reoccurring conversation was how quality control at MFJ was very low. For some reason I wanted to check the spacing of the capacitor plates on the loop antenna . It turned out the plates had a warp to them and at the low end spacing was good but in and around
20m's some of the plates were very close and maybe touching each other. After some time of tweaking the plate spacing I was able to have equal spacing for the full rotation of the capacitor. The SWR on 20m is now down to 1.4 to 1 and that was the problem as I put the loop back together I kept an eye on the SWR to see if it changed at all. The piece of equipment that really helped me out with this process was the MFJ 259B analyzer. This unit made tracking my SWR very easy, bottom line is the antenna is now working great and now it's time to get on the air and see how 20m is preforming from the condo.
1. Tuning the loop for max noise (as low SWR was not happening) did happen but as soon as the rig was tuned in any way the noise dropped to nil.
2. Once max noise was achieved and I transmitted the max noise was gone again.
3. There was no spots on the Reverse Beacon Network while giving the tuned match a go.
4. When transmitting power levels were all over the place from 1 watt to 5 watts.
I had posted my 20m tuning problem on 2 loop user groups and had some great advice but nothing seemed to even come close to solving the problem. I then emailed MFJ who very promptly emailed me back and advised me to change the shape of a 12 gauge copper loop that was located inside the loop. Easier said than done this involved removing half the plastic cover on the loop and changing the shape of this loop then
Adjusting the loop |
Some plates to close |
The MFJ 1788 loop arrives!
Ready for inspection |
Capacitor |
Control box test |
1. Send the control box back to either MFJ or DX Engineering for repairs?
2. Ask MFJ if it's possible to make the repair myself if they were to send me the part?
I settled on option 2 as I could still use the control box until the switch arrived and not be put on hold until control box was repaired or replaced. (note: I purchased DX Engineering's last unit)
Stepper motor |
All was going well until the capacitor was rotating counter clockwise and it just stopped! I then rotated the capacitor in the clockwise direction and back counter clockwise and it worked just fine. After many back and forth rotations the capacitor never acted up…..maybe this was a one off. I emailed MFJ regarding the switch and they are going to mail one to me so I can do the repair. Next is to mount the antenna and see how it performs stay tuned!
We are in the new QTH!!
The new station slowly being setup |
Boxes slowly being dealt with |