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First of all you need to do your analysing again as you're analysing way too much bandwidth. You're analysing from 2MHz to 52.5MHz with a +/- 25000kHz scan. You need to only set it to scan +/- 500-1000kHz. If you do that and put up the same screenshots again it'll give a whole lot more...

One of the common tricks to do with the Icom 7000 mic when upgrading the element in it was to also glue a couple of pennies in it to give it a bit more weight. Open it up and see if you can put a couple of coins in it to do the same.

Conditions were mental for DX last night. At 1am in the morning I was on the 20m band listening to loads coming in stateside and that band usually dies the death around 10-11pm. 10m band all day had loads on too.

Depending if you want to spend any money Sirio do a 3/8th thread version of the Performer 5000. Comes with a fetching camo coil cover, the Performer 5000 Fighter 3/8. They also do "trucker" versions of the 5000 too that have a short shaft under the coil with a 3/8 connection.

Was reading through all the threads and I realised one thing.... Once upon a time life with a CB was simple. You'd get an antenna, screw it into a magmount or a mirror mount, throw it on the car, hook your CB up to wherever you could get 12V from and off you'd go, happy as a pig in muck...

Did you see if your noise problem went when you removed the spring? In regards to a second bead, you can never have too much choking and the more turns you get through it the more it chokes. I've got a RF choke on my Hustler 5BTV at the antenna and then one near where the coax comes into the...

A centre or top loaded antenna will move the RF current maximum up the antenna which should mean you put out a more horizontal signal and get better range than a base loaded antenna. Hate to say it but mirror arm brackets don't do anything for performance, even with ground straps. Might look...

It's horizontal metal directly under the antenna feedpoint (where the coax ends at the antenna) which counts as a RF ground and at the moment you've effectively got just one thin strip an inch wide and 6ft long as far as the antenna system is concerned. Using a strap would just give you a far...

WINNER WINNER CHICKEN DINNER I think I know the answer. (Or I hope so otherwise I'm about to look a clown). I'm so glad you've posted that picture, I think I've figured out what the biggest cause of your problems is. As we know, RF flows over the surface of a conductor, not through it. Also as...

So in regards to the QSO range. This is no skip, just direct mobile to base between two towns. No doubt you've seen, know of or have experienced the fact that many mobiles struggle to make a few miles. As in regards to not being able to observe a difference, yeah that's quite possible looking...

I'll hold my hands up and given I work nights, do at least 10 hours and sometimes up to 15 and flip from nights to days and back again with the inevitable lack of sleep it wouldn't be beyond the realms of possibility for me to post some absolute complete unadulterated bollocks I'd never post...

I know you're not that daft but believe me there's plenty who don't make the link. Same for those who used to fit the bulbs on the ends of their antennas so it'd light up like a lighthouse every time they keyed the mike.

Ooh jesus. I know absolutely nothing about American models of cars but does that have factory fitted bluetooth for hands free? I ask as there was a software problem on some Fords over here in the EU where randomly the bluetooth module wouldn't go to sleep or power down when the car was turned...

For this reason the Sirio 4000 is a better choice than the 5000. Same length, same S point for S point but it has a thinner whip which is less wind resistance. Downside is narrower bandwidth below 2:1 than the 5000 but it's still sufficient to cover enough of 11m to make the freebanders happy...

I don't use a SWR meter, I use an antenna analyser. You don't need to chart anything. The goal when using a 1/4 wave antenna is to end up with a feedpoint impedance of 36.8 Ohms where the resonant point (X=0) of the antenna is as that's the feedpoint impedance of a 1/4 wave antenna over a...

As someone who has taken the time to do it as per that website I don't. When I'm on my CB with 4W I talk to the next town 10 miles away with a S9 signal report, when I'm going to a nearby city and with my 4W mobile managing to talk to people on Ch19 over the top of local home bases and when I'm...

So if you've read the website you'll know that . Means that you've basically no RF ground and that the ground strap does nothing. If you look through the HOS folder on the picture gallery on that site you'll see similar installs and they all have the same comments attached..."virtually no...

Oh when it comes to air wound chokes it's absolutely specific as they're very narrow banded. 5 turns of RG213 on a 4.25" former gives you a RF choke that gives you 8k Ohms choking between roughly 25.5MHz-28MHz. If you increase the number of turns by just two, making it 7 turns that detunes the...