And Yet Another "Home-Brewed" item. 3 Wire Shielded cable.
Del,
Thanks for your input and reminder as to which end to connect to ground. I worked as a Business / Data technician at GTE/Verizon for almost 40 years, so I know a little about noise on circuits.
As far as the HAM Radio, I got my 1st Novice ticket in 1976. WN9RLY... I have hearing problems so the Morse code was a real struggle for me. I could barely get the 5 words per minute required for the Novice. Let alone the 13 word per minute for a General ticket. I ended up having 3 different Novice calls before they came out with the Tech Plus ticket. I could ALWAYS pass the General theory part of the test. Just not the code. The Tech Plus required 5 words per minute and passing the General theory. Which I did in 1986 as N9QEP. After moving from Illinois to Arkansas, I finally in 2010 took the General test and passed. If I had studied for the Extra I think I could have gotten it. I took that test the same day and got 50% without any study at all. My call is now W5HMB. My initials. HMB Herbert Mitchell Beer. When I make a call, I identify as Whiskey 5 Herb's MOPAR Barn.
Here is the link to our local club. HSVARC – Hot Springs Village Amateur Radio Club
Check into our net using the Echo Link some Tuesday evening at 7PM central time.
Herb aka "Dart67" W5HMB
Been there done that. You realize you only ground one end? At the computer end. "Faraday shield." You can also use other cables that are not shielded, with extra pairs, and ground the unused pairs at one end. May not be quite as effective, but often works.
First time I did that, was working out of town installing 911 gear. Motorola had made a change in the remote radio control console. The under desk headset connector was not shielded, they are balanced pairs. But it was picking up hash from the very large, very powerful CRTs used back then for the CAD (Computer Aided Dispatch) and the other for the ANI/ ALI for 911 (Auto Number, Auto Location Information). So I did the same thing grounded one end to the rear of the console interface, and just like that, gone. The boss was impressed when I told him about it.
I am 77. First licensed in 65, Jr in high school, got my general after graduating.
This was our ham club at Treasure Island, Navy electronics tech "A" school. I recently heard we have just lost another two of us.
There are three websites about the old club
K6NCG - Treasure Island Radio Amateur Club 1969-1970
K6NCG Amateur Radio Station - Treasure Island, CA
K6NCG
Me, 1968, 20 years old, working at the top of the 120ft tower
Del,
Thanks for your input and reminder as to which end to connect to ground. I worked as a Business / Data technician at GTE/Verizon for almost 40 years, so I know a little about noise on circuits.
As far as the HAM Radio, I got my 1st Novice ticket in 1976. WN9RLY... I have hearing problems so the Morse code was a real struggle for me. I could barely get the 5 words per minute required for the Novice. Let alone the 13 word per minute for a General ticket. I ended up having 3 different Novice calls before they came out with the Tech Plus ticket. I could ALWAYS pass the General theory part of the test. Just not the code. The Tech Plus required 5 words per minute and passing the General theory. Which I did in 1986 as N9QEP. After moving from Illinois to Arkansas, I finally in 2010 took the General test and passed. If I had studied for the Extra I think I could have gotten it. I took that test the same day and got 50% without any study at all. My call is now W5HMB. My initials. HMB Herbert Mitchell Beer. When I make a call, I identify as Whiskey 5 Herb's MOPAR Barn.
Here is the link to our local club. HSVARC – Hot Springs Village Amateur Radio Club
Check into our net using the Echo Link some Tuesday evening at 7PM central time.
Herb aka "Dart67" W5HMB