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Messages - C-ya

#1
I have a "decade box" of sorts to use when I attempt calibration, should I actually do it.  We have a club event coming up on the 21st of April that I can compare it to better quality analyzers at the location we are doing the event.  There are 8-10 antennas on site, so I can compare the MR100 back to back with another analyzer on the same antenna.  If it looks similar, I won't calibrate it.

#2
OK, I finally got some readings with the MR100.  My antenna is right on at 80 - imagine that!  40 and 20 are very high and require a tuner.  I haven't hooked it up yet and gotten scans with it but I'll try to do that soon.

I used two different programs.  Slightly different measurements but they tell me the same thing.  I only scanned the voice portion of the band for my privilege.

WinPCC plots







SM6WHY program





#3
I just received my MR100 analyzer.  I found this site searching for it's use after I saw it on ebay.  I'm glad I did, as I have found some interesting topics on this forum.  You have even gotten me to download a CW app for learning and even going to the LCWO page.  I haven't signed up, but I plan to.

I'll try to post a few plots of my 80-40-20 OCF.  I'm having issues tuning it since I went from twin lead feed to coax and balun due to space restrictions at my current QTH.  With 100 feet of 300 ohm twin lead, it was pretty much "no tune".  With the balun and 50 feet of coax, 80 is tough for the LDG tuner, 40 is great, and 20 is not perfect.

Thanks for the forum and hopefully I can contribute a bit as well as learn a lot.  I have been lurker for about a month but I registered tonight to post in this thread and a Slim Jim thread.
#4
Antennas / Re: Building a 2m Slim Jim Antenna.
March 05, 2018, 06:49:10 PM
Hello!  My first post on the board.  I built a Slim Jim for 2m/440 and I love it.  It is mounted on my chimney for height.  For those needing to adjust SWR without moving the feedpoint, you can also adjust the gap between the folded ends.  I haven't found the need for it - I  must have gotten lucky with tuning that day! - but I have seen others do it that way.  I found one method of making the antenna that included a screw/bolt in one end and with turning the bolt, you increase or decrease the gap.

I screwed then soldered then covered with mastic tape (the weatherproof wrap tape) the connections onto the antenna and mine has been in service for many years.

Glad to have found the site!  I just ordered and received an MR100 antenna analyzer.  I'll post more in that thread.