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I‘ve never come across a need for ferrites on a UHF mobile install, there is not much inside a car that will generate RFI at UHF and anything that might be a problem would just get picked up by the antenna. Otherwise for VHF/UHF usually three to four #43 mix or Laird 28 mix snap on ferrite beads...

For a particular ferrite mix there will be a specific number of turns needed to target a frequency range and your first picture is typical of how it’s done. Are you working with HF or VHF/UHF?

I have not found a tripod as you describe using AT-1011 elements as the legs. I have seen some tripods supposedly made by Shakespeare and they were not much different than the one in the middle picture above. There is also a version that folds up instead of being taken apart and the mfr is...

The OP is in Oklahoma City and I don’t imagine that to be an RF hell like LA or NYC but the symptoms do sound like receiver overload. I also don’t think the antenna or mount or coax or grounding or the vehicle has anything to do with it. Does the OP have another radio to try in the vehicle? Even...

What does the noise sound like? Noise when engine is running or when off?

You should also upgrade control head firmware.

It’s typically the opposite with people fed up with fiberglass antennas that have developed noise from bad internal connections caused by the antenna swaying in the wind or from corroded dissimilar metals. I saw this recently with a Sinclair VHF antenna on a local 2m repeater and a10dB...

Even if it’s the same keypad through the products lifetime, newer RF hardware should be a newer radio and I’ve seen more problems with older hardware like R13 or earlier compared to R20. I had an R13 hardware radio and its keypad gave me fits then I replaced the front cover with keypad and all...

I would temporarily replace the DB-224 and bring it down for testing on the ground. You can test under isolated conditions with known good coax and patch it to the repeater looking for desense. You can also sniff it with a Yagi and spectrum analyzer looking for IMD generation. If it has problems...

I had a Liberty for a couple of weeks about 3-4yrs ago, I put a lowball snipe on eBay and got it for $107 including the side connector USB programming and Hirose adapter. I kind of remember it having a speaker mic also. It did FPP and the battery had some life left but at the time there was not...

I did a lot of 2-way radio work in Lockwood Valley in the 80s and 90s but I never had knowledge of the radio system in question. I was moe interested in things like the burger joint up the road or the F-117 that crashed on my buddies property.

Do a search with egzumer and chirp, there might be a file you drop into chirp that allows it to work. I had the same problem with IGV v2.95 and was pointed to a file I have to run with chirp for that radio/ firmware combo.

Not to mention lots of test equipment to align the repeater, duplexer and filters plus the knowledge to operate all of it.

Friends don’t let friends go narrowband.

How do you run one through a full alignment? The maintenance manual shows the TCXO as the only available adjustment.

Without doing a calculation I would estimate that antenna with 5 watts fed directly into it should be fine about 12” or more away. You should be able to stare into the antenna just 1ft away while it transmits at 5w and not have a problem. The RF safety specs have a time limit involved meaning...

A typical scanner Discone like the Tram 1410, Diamond D130, Radio Shack, etc, is not very good in the 700-800MHz range because the radiation pattern shifts way upward in that range causing about 10dB of degradation at the horizon.

Probably the 447.640 Winsystem in San Diego. Does it should like a bunch of blowhards jumping on users that talk for more than 1 minute or who don’t use their silly etiquette? Or does it have a Friday night ”technical net” where the poorly informed operators constantly give out bad technical...

A random length antenna can have an impedance ranging from maybe 10 ohms to past 2500 ohms, way out of range for an LDG type tuner even at the antenna. Coax loss goes through the roof when operated under very high VSWR but 450 or 600 ohm line does not, so that is a way to address some problems...

What you have assembled is a recipe for VSWR disaster. There are a few options to make a workable antenna like feeding the existing 200ft dipole with 450 ohm ladder line all the way to the shack and using a wide range tuner with balanced input. That should tune and operate 80-10m and radiate...