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SteveShannon reacted to an answer to a question: Let's talk antenna masts
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SteveShannon reacted to an answer to a question: Amature bands VS. GMRS Range
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AdmiralCochrane started following Antenna grounding?
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AdmiralCochrane reacted to an answer to a question: Antenna grounding?
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Don't tell the EME guys that. Well, maybe they fit "very unusual circumstances" LOL
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"With ease" is a stretch as well. I remember reading these in real time.
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AdmiralCochrane reacted to an answer to a question: Let's talk antenna masts
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AdmiralCochrane reacted to an answer to a question: Let's talk antenna masts
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Jinxmedic575 joined the community
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WSFY587 joined the community
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That explains why I could pick up VHF stations from Buffalo [2, 4, sometimes 7] & Syracuse [3, 5, never 9] when I lived in Rochester, NY, I couldn't get any UHF from Syracuse [24. 68] at all, & only once from Buffalo [29, never could get 17], & I think that was because of a band opening I probably would have needed a very tall tower to improve my reception chances There was a house just outside the city limits on the NW side that had vertically stacked TV antennas, I'm sorry that I never knocked on the door to ask what they were able to pick up
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0558 joined the community
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exactly what i was thinking
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WRUE951 reacted to a post in a topic: Comet 712EFC -- no ground plane radials
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SteveShannon reacted to a post in a topic: Comet 712EFC -- no ground plane radials
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WRYA681 joined the community
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WSGL775 reacted to a post in a topic: Marine VHF
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WRWK929 changed their profile photo
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WRTC928 reacted to a post in a topic: Comet 712EFC -- no ground plane radials
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Then do that. If you have a tipping mast then there is no real down side to using the temp ground plane.
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Access is just a matter of tipping the mast up and securing it to a post with hose clamps. I just now emailed Comet about the radials. In the meantime, I'm going to stand it up and do some tests with the improvised radials. It will be easy enough to tip it back down and change them when the "correct" ones arrive.
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GreggInFL reacted to a post in a topic: Hamvention
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If you have easy access to your antenna I say go for it. In my case my antenna is only accessible by bucket truck at my house. Trying to be one and done but that didn't work because I had water infiltration on my last setup. No idea how, I waterproofed the heck out of it and when I took it down I saw no signs of water. Yet since my setup worked at 26ºF and stopped at 32ºF I can only conclude it was water and when it froze it let things be right.
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The rods I got are also stainless steel. I'm going to email Comet, but I'll use what I have until the new ones arrive.
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Either way, bad things can happen when dissimilar metals are put together and exposed to the environment over time.
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Nope, probably cheap chynese SS. I still have a 712 in it's bag. Maybe later today or tomorrow when I'm back at the shop I'll take a look. 95% sure it's not aluminum, too heavy.
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Here is the USCG page for channel/freq assignments: https://www.navcen.uscg.gov/us-vhf-channel-information. Even though I'm just a recreational boater, it's still fun to monitor some of these channels, especially when overseas.
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Hmmm. As cheap as they sell the Comet i'm thinking the radias are made of threaded aluminium rod or tube.
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Amazing to think about.. Here is a neat video, long but very interestig about communications to and from space
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takes 20 hours to receive a signal from Voyager and the same amount of time for Voyager to receive a signal from earth.
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WRVH403 changed their profile photo
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WRFX204 joined the community
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I agree, go with the correct radials made from stainless steel. Cheap all-thread will rust and seize in the antenna housing.
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LeoG started following Comet 712EFC -- no ground plane radials
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The originals are stainless steel. Always stinks to have delays. But... do it right, do it once.
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And it takes a while for the signal to be received after it is sent. Get's longer every minute. Still, it is pretty cool that we can still communicate. I'm waiting for someone to respond on that frequency. Could be interesting.
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Nope, no stars between us and Voyager. Voyager is 15 billion miles away. The nearest star (other than our sun) is 23 Trillion miles away.
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Interstellar dust Asteroid fields Kuiper belt The heliosphere
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But a hell many of stars.
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I'm of the opinion that on 2m/70cm, anything more than 50 watts is just wasted, with perhaps a few exceptions under very unusual circumstances.
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There aren't any buildings in the way.
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I thought it was probably just an oversight, but I figured I'd ask if this was normal. I found an easy solution and I don't want to wait on radials. I'll probably email them anyway so I have spares.
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Yeah, I figured it was probably something like that. I found an easy work-around, so I guess it's okay.
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