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Technical Topics => Equipment => Topic started by: IZS4 on February 08, 2020, 2201 UTC

Title: Tram 1411 Discone
Post by: IZS4 on February 08, 2020, 2201 UTC
Today I received a Tram 1411 Discone in the mail. I have no real UHF/VHF antennas up and needed something to experiment with for a wideband SDR receiver im getting. I can't say how performance will be, but I'm quite impressed with the construction so far for the price. It's much more heavy duty than I had imagined. 
Title: Re: Tram 1411 Discone
Post by: chanito on February 10, 2020, 1954 UTC
Tram 1411 has the SO-239.

See here for an image of how it is to be mounted. Not sure if Tram included the short mounting pipe to side-mount on a mast.

If not, then you would need to use a mast with an open end, and pass the coax down through that. If you are mounting to a chimney mount, tripod mount, eave mount or wall mount, this shouldn't be a problem.

https://www.radioresearch.us/Antenna-Broad-Band-Discone-Scanner-Base-25-1300-p/1411.htm (https://www.radioresearch.us/Antenna-Broad-Band-Discone-Scanner-Base-25-1300-p/1411.htm)

If it didn't come with the short mast and side clamp, you can improvise with a short piece of EMT or PVC and a antenna mast clamp. The antenna does not have to be electrically connected to the mast, so either way it should work fine.

That said, I would use EMT or similar metal pipe so you can ground the whole mast and ground plane radials.
Title: Re: Tram 1411 Discone
Post by: IZS4 on February 10, 2020, 1958 UTC
Yup. I was able to cut a short piece of metal pipe at work and even came across the mast clamps I needed, so I'm good to go on the mounting. I want to seal any potential water intrusion points as well before permanent mounting. Thanks for the feedback.