102" ss whip tuning through the bands.
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- Опубліковано 3 сер 2017
- Now that I have all stainless steel mounting hardware on my mirror I have finally reattached my tuner and went to the band's checking to see what would tune. So I did just a quick run through including identifying on everyone that would give me a decent swr. Changing the hardware from the mixed metals to the same metal and Welding things together made a difference on noise levels and bandwidth, it also seemed to help my tuner function to a degree better. If you're a ham radio operator on a budget, this is probably exciting for you, I tried to run through it for fairly quickly and show all the details without going overboard. Hope you enjoyed, 73 Alpha echo seven Quebec Tango
- Наука та технологія
I ran a 102" whip with an LDG tuner and was able to tune 6-40 meters. I installed a Chamelleon mini coil under the whip and can now tune 6-160.
How is it with the coil on receive and tx?
One of them big make up brushes are great for dusting your radio and a micro fibre cloth on top! Have one of them radios still in the box. Gonna give it away to my nephew only 11 when he passes his foundation license in France. Hell he can have my AT 180 as well.
Just installed my 102” whip with a 10” gp riser. On my 15 cascadia. Very easy to adjust and tune swr. Works great.
He is doing 10-30 meters with his does yours do that?
What bands are you able to work,Ben?
Does a 102" need to be tuned for standard 40ch CB radio? The guy that sold me the equipment told me it didn't need it. He also stated that I should use 18' worth of Cable
coax length, what ever fits! no magic number... having said that, if your doing a co-phase, a quarter wave length can be a tuning stub, or help you transform your resistance a tid bit, and half wave lengths can pass things through... for most single antenna applications, just get what ever fits! I have random length stretches of coax from radio to amp, amp to antenna, my SWR is 1.1:1!!!
Use what works, toss what does not! That is the magic trick in this hobbie!!!!!!! As far as the 102" being perfect, sure, in a perfect world, I found on my truck I had to add 6 inches, that made my setup perfect. Make sure you have good ground system, and clean connectors, I have to pull my stuff apart every spring and clean it. Have fun putting it together and using it...
o ya, don't argue with the CB guy, just make your shit work, what ever it takes, then use it, if he says 18' and you try it, if it doesn't work, change it! Don't get stuck on stupid things that are supposed to be the PERFECT STANDARD! These things are only the starting point, if you find you need to modify your setup, then do it! 73
Depends! Your ground system & where you mount the whip. Using simple math, lets look at some numbers, starting points really, your SWR meter will let you know if you need to add or cut your antenna a bit.
102"= 28.94 Mhz = near middle of 10m ham
108.5"= 27.205 = channel 20 on cb
The 102" whip band width may be good enough to cover all 40 channels with an acceptable SWR, if your happy with it, then no tuning needed.
I personally wanted CH 20 to be where my SWR is lowest, so I added 6 inches, and BOOM! I was super happy. 1.1 swr. Hope this helps, and no matter what you do in this wonderful hobby, HAVE FUN! 73
8.5 foot is generally good.
@@888rogermoore yup
Did you try using a 9:1 balun to the tuner? Might get you more range
That discoloration looks like moisture/water.It's easy for moisture to get into a PL-259 connector when turned up like that.I'd replace the coax & use an elbow connector on the next coax as well as some good electrical tape at least.If the rig is one you own or drive all of the time wrap that connector with electrical tape & a good wrap of Coax Seal & then another layer of electrical tape.make sure the coax seal is between the layers of tape that you install so that it can all be removed if needed or when you get a different truck.Also I have found that the MFJ 929 is a far better automatic tuner for the HF Bands.It will tune what my LDG AT-1000 won't touch.It will tune a 102" stainless steel whip on 40 thru 10 meters & anywhere in between.I am usually NOT a fan of MFJ but I am very pleased with how it operates with my ICOM 706 MKIIG.Even on the bands that the LDG tuner will tune the MFJ tuner tunes much quicker & the SWR is always better. de W4KVW {:>)
I thought the icom 706 came with its own matching tuner
The 706, 7000, 7100, none of these have built in tuner
Rodney Spencer maybe Oliver is thinking of the Icom AH-4.
Nice rig . Try splitting ur coax lead to element and shield to reflector
Can you tell me what whip you have the stores im looking at keep saying its a cb whip but i am running hf like you.
I was on a 102" cb radio whip, it works on 10 & 11m just fine, some use a tuner and have had luck with all the bands from 6m-40m. The further away from the resonate freq of the antenna the less efficient it will become.
I have 102-in stainless steel whip on a Toyota Corolla with a ball mount and spring right in the middle of my trunk, I run a 18 ft coax right to the radio and got a one to one match. now some people get a one to three one to five match that is not acceptable because the radio operates it's best when it's at its lowest match that's the way I Work It. The trick is to get the correct length of coax to the 102 inch whip either by adding to it or subtracting a little bit from it but the rule is every nine feet is a match on 102 in whip, and my radio gets out good I have a Galaxy
DX 86 V 10 meter amateur radio I put an rm Italy small kicker upper and lower side band plus Am I dead key on Am side 100 w swinging up to 150 and on sideband I swing up to 220 Watts it's all I need. I talk skip on my mobile not as good as those Base antenna but they hear me pretty good I am satisfied. my next step is a Mako 4 element beam ill be the new kid on the Block!
Hello world!
I am using an SGC239 antenna coupler mounted inside a cable TV amplifier case, used a "gumdrop" mount on one end of the box with a heavy duty spring feeding a Shakespeare 108" fiberglass whip. Box is bonded with one inch braid to chassis and powered by a set of power injector / power splitter that was featured in an old QST article. Works great from 40-6 meters, no issues whatsoever. Cost? Just the coupler ( on sale many moons ago) a few minor parts for power devices, cable box, free. Beats paying what SGC wanted for a similar unit which came out to over three times the cost.
@Subgunman it’s been over a year. How’s it working out? Is there anything you would have done differently? I’m stuck in an HOA and your solution sounds like something I can use. Tnx de WB3CFN…dit dit 😊
I set up a SGC tuner in a friends house who lives in HOA, He is on the air from 160-6! He has some noise issues due to being in the attic and so close to neighbors houses too. but he is on the air!
I Rodney, I have a Peaked and tuned 10/11M Stryker radio with mods. I am trying to decide if it is a waste of money to purchase a nice Stryker SR-A10 antenna or cut down a whip.
Your antenna is the most important part of your radio system. Not all antennas are made equal, you can take Brand X and put it on your car and it works fine , you can take that same brand and put on your pickup and it may not do anything right at all. Sometimes you have to go through a couple of antennas to find the one that works with your vehicle. Make sure that it is capable of handling the kind of power you're going to put through it, you're running good coax, and you have a good ground system to the Mount of your antenna. It is also a good idea to check and clean your antenna system in the spring every year. Lots of Road Grime from the winter driving builds up in places and can cause SWR issues. Good luck getting the best antenna setup and have fun when DX comes back around!
Use a whip. Cut fitting off the bottom and buy a 10” GP riser. Makes the whip fully adjustable for a wide band. I use this on my truck
Coax was replaced with some RG400, its same size as RG58 but is much better quality. Some minor issues were fixed with new wire. 73 ae7qt
What tuner do you have hooked to it?
At the time I believe I had my LDG-7000 hooked up.
Next time you replace the coax try using LMR -240 flex, Davis RG-8X+III (same as the LMR but a bit less expensive ) or LL-240 from JEFA Technologies (Again, LMR-240 flex type just less expensive)! I use JEFA LL-240 flex and have had no problems with it, ever and at $0.44 per foot!
@@jfrphoto01 just as long as it will handle 2kw pep watts, sounds good...
@@jfrphoto01 looking at a 4kw amp these days... will these cheap coaxes handle? Still have a long way, and some prep time to get these 4+kw watt levels. Still planning & prepping... 73
It looks all well done now, so might not be a good advice, but if you can move the tuner right next to the antenna, you'll have better results. The tuner as it is, matches the coax and the whip to a resistive load, so the antenna doesn't radiate but is part of the antenna, and add losses. But it might not be practical to do so :/ anyway cool video ;)
I would love to have my remote tuner mounted on the side of my truck next to antenna, that would be the most ideal setup for sure. 73
Have you tried the Little Tarheel antenna?
I have not. I have used HiQ screwdriver in the past. It worked well until I broke the coil. I was 3rd owner, it had lots of miles and lots of UV cracks, it only took a few months driving around with it mounted on my semi truck to break the plastic around the coil. I've been using Hustler coils ever since, they are in my current budget...
I've always wondered, why do truckers tilt their antennas forward at what appears to be 45deg
good question sean. I tilt mine for two reasons, one being clearance of everything, the other being less rfi back into my equipment. When I had my antennas stood straight up the hot point of the antenna, being the middle, was right next to the metal of the door, where some wires for all kind of computer controll run up the door on the inside, so moving the antennas forward gets the antenna radiation hottest spot out further into the air. You may find as I did that your antenna will give you a better swr band width and less feedback into the computers, more so true with higher power amplifiers. For those who run just legal 4 watts on 27mhz CB, its more about looks. Hope that helps you some...73
Thanks for the reply, I'm a ham also, as well as a CDL driver, local only and we aren't allowed to have our own radios in the trucks, so my radio doings is all in my POV.
I use the Yaesu FT-857D, currently without any sort of tuner, planning on either the LDG YT-100 or the FC-30.
My antennas are MFJ hamsticks and an Outbacker style multiband. Lots to work on for sure. I just bought a 102"whip which I'll most likely trim to about 98 &1/2" to be resonant on 10M and still usable on 11M when we go on a road trip. I found your video when I did my search on the 102" whip.
Hi Sean, I am sure you will find NO NEED to trim the 102" to be resonate on 28-29! I actually had to add 6" to mine to get it into the CB band better, but still have good swr all the way up to 28.7 with out tuner. Check it with your install before you cut! 73 and good DX AE7QT
It's cut to 99", which works out to a center frq. of 28.36mhz. Actually that was my first cut. After filing the rough and installing, it had a virtually flat SWR on 10.The needle barely moves. I think if I remember correctly, the SWR;'s didn't hit over 2 until about 29.6. 11m is 1.4-1.7. Fully acceptable. Bearing in mind I'm QRP on CB, with an unmodified Cobra 25, and up to full power on 10m with the hf radio. I use a Yaesu FT-857D with a LDG meter which plugs into the control head for the test. planning on getting an MFJ-902B "Tiny Travel Tuner" 150 watts, 80-6m . Possibly a YT100 later.
I use a Diawa 2pos RF switch to toggle between the two radios on the HF side..
The whip is attached to the bumper of my 2015 Nissan Frontier with a Hustler 1 & 1\2" ball mount, so I get a sufficient ground. My other antenna is an MFJ-1699 multi-band Outbacker style antenna that I have attached to my tool box. That antenna is still a work in process. The grounding needs to be improved before it can be decent. I use the 4"HD spring for flexibility if it hopefully doesn't encounter a limb.
For 6m, I use another 2pos. RF switch In addition to the 857, I also have a Yaesu FT-1900. It shares the Diamond M-285 whip on the hood. As I'm sure you know, in general a 5/8 wave on 2m is a 1/4 wave on 6.That antenna, like the cut 102 is virtually flat on 6. Those three antennas are fed to the HF side of the FT-857D with an MFJ 3 pos. RF switch. I use three RF switches. I seldom us six anyway, its just on an antenna that will work for the occasion that I might use it.
The VHF/UHF side of the 857 is on a Diamond dual band antenna.
Three antennas, three radios, and three switches lol, I guess it's a technique, also know as a work in process.
I like the way it looks when you tilt your antennas, especially the antennas with coils.. it reminds me of a grass hopper...
I run a 102 in whip on my HF rig in my jeep. If you put a 1:4 Unum in line it will tune on 40 meters. Still very, very inefficient but can make contacts.
I have Hustler resonators to cover 10 through 80. 40 and 80 for me are completely unusable when driving... the computers in my semi cause about 40 over S9 noise! When I park all that noise goes bye-bye. It is what it is
@@rodspencer2000 I am Blessed that I have ZERO noise from my RAM 1500 Quad Cab with my ICOM 7000 & Hustler Resonators.It's the quietest HF mobile setup I have ever ran in any vehicle.The Chevrolets were Terrible for making Noise.
Very nice. I’ll need to get one for my Pete. I’ll get an extension of some kind perhaps a fabbed post to mount it to my rig’s deer guard.
One doesn’t “have “ to have all of the Hf spectrum but a few bands is still good.
73
WØCPM
Yes sir! So true, I just have always enjoyed having options for all of them. Get your favorite bands up and running well, then just enjoy! 73 and good DX to you! AE7QT
What kind of efficiency that you get on each band.Just because it will tune up does not also say that it will work well.I'm sure it will not work as well as a resonant antenna & it should not be expected to do so.
%100
All your loss happens when you tune your antenna through coax. But if you're tuning your antenna with a tuner hook directly to the antenna, you don't need to tune your coax therefore you have no loss.
@@rodspencer2000 IMPOSSIBLE with a mobile antenna.
@@rodspencer2000 the biggest loss is the antenna is not optimal for the band they are being used on.Most are a Quarter Wave Length at best without some type of coil and that’s far from Optimal.
I got mine to tune up on 40 meters
fine biz OM, I was just messing around and thought I would record it. 73
Weatherproof that PL-259.
All my connectors are weatherproof now. Obviously this video was shot almost 2 years ago so some things have changed. Upgraded coax, new connectors, new ground straps, different mounts. I keep on top of my stuff pretty good, I appreciate your concern and it is nice to know people notice these little things.
@@rodspencer2000 OK, but that connection wasn't weatherproof in this video.
I understand that your comments were pretending to this video. I heard and seen what you're talkin about. Everything I have now it is different than it was then. I have all my stuff waterproof as best I can. I try to do maintenance on my stuff every spring when it starts to warm up and dry out a little bit. Clean all the connectors redo all the waterproofing. Just general maintenance line don't have issues.
How do you water proof?
It's 1/64th on 160 I think a 1/32 on 80 don't hold me to it
Quarter wave on 160m is 136.6667 Feet, so divide that by quarter wave on 11m at 9.0425 feet, that is 15.113 times too short for 160m quarter wave. Thank you for this comment! It gave me a good reason to break out my Frequency wavelength calculator. So to keep it stupid simple, if you have a tuner that can load up your CB antenna on 160m, it won't preform very well. It is still possible to make contacts, you just will loose a crap ton of power from the back of the tuner to the tip of the antenna. What ever you do out here in this wonderful hobby, HAVE FUN! That is all that matters... 73
if you dont have 3-5 of static it aint going to work
Static levels change every where I drive, out of the big cities it is very quiet, in the cities its usually very noise. s3-5 is not a standard for noise
Tuners don't make it perform :)
Make it matched with wavelength. :)
thx great video.
cant tune the wrong length, you need to get a screw driver antenna, even if it tunes your receive and transmit will be severe degraded
I have had a screwdriver in the past, it worked well until I broke it. These videos are just some of my adventures on different kinds of installs. These trial and errors are how one learns, I have learned a lot over the years and hope to keep doing so until I pass on. 73