anyhow I have been working a little 20m both CW and FT8 This has been a lot of fun and a worthwile activity. On the ham radio front I have been working a good bit of 6m FT8 which has been fun. I will be in a neck brace for a while and I will also have to go to Physical Therapy for a while and then after the release me I can go back getting on to the treadmill. So this time I think I will take the doctors advice and slow down a little. Then the the disk will be fused to the disk next to it. they plan to pick out the damaged disk and replace it with a special plastic disk. So I joined a gym and started walking when I was home, this worked well enough but after about 4 weeks I find out I have the buldged disk. I prefered swimming but its hard to find a place where I can get time in a pool where I wouldn't have to share the pool with a lot of little germ factories. I was also told by several Doctors that I needed to go to the gym. I was told some time ago this could happen if I didn't watch what I did and how I did it. Earlier in June I found I had ruptured a disk in the cervical area of my back. I know I ran over coax and turned it into several smaller pieces. How'd that work for you Dan? Seriously tho I think we have all done this type of thing. Unfortunately Dan ran over the loop he had laying on the ground with his brand new zero turn lawn moder. Common sense and practical experience leads me to suspect the signal level to be in the -30 to -50db compared to the TX antenna. According to Dan the signal level that was obtained from the wire was quited a bit lower than the transmit antenna. The one he had been looking at is a wire placed in a 15 x 15 ft squre and staked to the grass. I dont currently have the the signtl generators to test the IP3 but a good test would be the next contest on TB.ĭan has also started working on ideas for a low noise RX antenna for TB. Hopefully Dan has sent me two of the boards so I can start working on them because the winter DX season will soon be upon us. The IP3 of course is what enables us to handle RF levels that exist when you live in a urban area or near a high power AM station or even on a band when we have a contest. The problem with this is that the bias will often be off and therefore the IP3 will likely be severly degraded. Apparently the guy that layed out the board layed it using the older version of the amp and many of the bias resistors are simple carbon 20% resistors.
#Icom 756 pro ii blog install
Both items came pretty fast and I am now searching for some thin film resistors of the correct value to install on the boards. So Dan ordered the boards from europe and I ordered the 2N5109 transistor of ebay.
This is a pretty nice amp, however one must be careful to get the latested schematic and parts list otherwise the IP3 will much less. The third order intercept (IP3) for this amp is said to be in the order of +43dbm and gain of the amp is said to be around 20db. I suggested the W7IUV amp that is circulating on the WEB. 6/22/18 Earlier in June Dan WA3UEV decided he need a nice preamp to augment his top band antenna situation.