Troubleshooting mylack of distance, receivng and transmitting.

"Take the time to read my post I NEVER said that ...."

I did not type the words you say you never said I copied and pasted them from your post.

In any case unimportant. What is important is the suppression of people coming here to share their experiences. Like Piranha in the Amazon no one should dare to share anything let the attacks begin. If anyone had a remote clue how many hours over a long time Mike has carefully tried one thing after another in the quest to have a decent radio in His truck. I fail to see why He was not allowed to let His experiences stand for what they were. Experience. With the sole motivation of helping His peers, i.e., truck drivers. I already know from talking to Him He wishes He had said nothing about it. He had to badger me to speak because He does not know how to describe His method in technical terms and while yes I am able I kept telling Him it is a complete and utter waste of both time and words. This is childish and immature, the attack gods or radio who's egos simply cannot allow the words of another to stand. He is not a technician so is out of His depth to defend what He posted. However it should have been taken for what it was, His real world experience through patience trial and error in arriving at something which works for Him. Simply because you refuse to accept it in theory does not justify the attitude and incivility which leaves the impression next time He will not bother saying anything. Let people speak and accept it with grace being respectful to the people who take the time to share.

 

ENJOY cutting your coax .....

The great CB MYTHs

Cutting coax ......
Extra Channels ......

AUDIO GAIN on a antenna AKA JOGUNN ....

 

I don't want to get into some long debate only show your reference of "conjugate matching" really doesn't really support your claim. You might want to read "Hams and the Conjugate Match by R. Dean Straw, N6BV Senior Assistant Technical Editor, Editor, The ARRL Antenna Book"

In respect to your referance to 'Reflections' by Walter Maxwell W2DU I found the following information:
"However, because of the complex nature of various relationships between voltages and currents in an RF power amplifier, during normal operation the internal source resistance of the amplifier, RS, is almost never equal to its optimum load resistance, RL. Hence because of the different values of resistance existing between the source and the load when we complete a matching operation, we do not have a true conjugate match when an RF amplifier is coupled to an antenna tuner or a feed line."

Did you notice we do not have a true conjugate match when coupled to either a tuner or feed line.

Another question Dr No. Are you from the Southwest Missouri or Northwest Arkansas area?


Leon
(kc0iv)

 

"really doesn't really support your claim"


Right, and you may wish to read the 'Saga of Conjugate Match' by W2DU. I saved you the search here it is. You see I never made any claims in this thread, only provided one possible reason why Mikes radio is now talking and hearing so well. It is Bruce who assumed I was making claims about tuning by cutting coax and then went on the attack. So who is the bigger fool, Him or the fool who backs Him up? Clearly the concept of using coax terminated in a reactive situation of non characteristic impedance as an impedance transformer is completely over the head of WA4GCH. I hear He works on radios. However this does not mean He has a degree in Electrical Engineering with an in depth understanding of RF theory now does it? You can teach chimps to fly but that don't make em biscuits.

Copy and paste any claims I have made in this thread and ask specific questions about them. WA4GCH made the assumption about claims I was making and then started attacking them. Problem is all so far I have posted is a description of what Mike has done and the results he is seeing. Period. I mentioned Maxwells book in the hopes some here could read up on the subject of conjugate matching to perhaps gain an insight as to why Mikes setup is working so well. Also so some could understand the difference in conditions in a coax when it terminates into a highly reactive condition as opposed to a purely resistive one. Great minds are always in a quest to learn and understand more. Nauseatingly simple minds refuse to do so and harp ad infinitum on the same subject for all time. Mike posted some info on what He had done for the benefit of others. I mentioned complex conjugate matching as a possible means to answer why His radio is talking so well now after all the trials He has gone through. Better yet why don't you explain why it does in your own terms. Considering the fact that all Mike did was try to tell how to make a Wilson work well mounted on the mirror in His model truck and immediately several Hams came in telling Him it cannot work and is damaging His radio, which He knows is incorrect on both counts.

Like WA4GCH using extremes as examples in His posts you are now going between the final collector or plate and the output termination i.e. the matching section, and using this to refute the conversation about Mikes setup which concerns the coax and antenna to His radio which is after the matching network inside the rig. Apples and oranges. Anyone versed in transmission line theory knows when a coax is terminated in an impedance other than it's characteristic impedance a range of impedances is seen down the line. When combined with reactive components the actual values become complex requiring trigonomettric equations to solve. One thing I do know is I should have listened to AB7IF and not let Mike talk me into wasting my time in this thread. A completely useless waste of time.

Furthermore I do not see how my location has any relation to this conversation nor how it is any business of yours. In order to answer such a question you would have to prove your justification for needing to know and why it is information needed germane to the discussion of Mikes posts concerning His antenna setup.

 

May I ask a simple question? Why is everyone making such a pissing contest out of this?

You don't need complicated theories and a calculator to know that the friggin antenna is too friggin close to the truck and the reflection is causing the problem!

You guys are trying to kill eack other over a simple problem.

GRANTED...logistically, the solution is not as simple as the problem.

 

That I will agree on

 

So, besides the 18-ft coax CB trick, we don't have a good antenna solution on the Cascadia? I have the walcott mount and wilson 2000 as in the picture, and having troubles adjusting for any acceptable SWR, using a shorter coax.

I'll be home in a few days and will be trying to install my FT-857d in my Cascadia. I'm hoping that I can rig up some grounding straps from the mount to the frame and be able to use a HF antenna...

 

Have you actually adjusted antenna length? Is your swr highest on channel 1 or 40?

 

"May I ask a simple question? Why is everyone making such a pissing contest out of this?"

WA4GCH "That I will agree on"

Interesting statement coming from the one who started the pissing first. Right at post 3. Over multiple pages coming back in and pissing on everyone mentioning their results concerning coax length. Every time it's mentioned by anyone innocently posting their own opinions you immediately come in pissing on them all over again. RollingRadios tried to mention his opinions on the subject and unlike you He has years of experience dealing with antenna systems in 18 wheelers. In these trucks zero to poor ground and proximity of conductors to the antenna are a fact of life one learns to deal with and some have done so hundreds of times with great results in performance.

Philjo in post 19: "I know exactly what your saying Mike. Ive had the same experiences with my Volvo but didn't have the heart to tell all the fellas with their degrees."

In comes Peterblt: "Francis antenna's need 18ft of coax."

You piss on him in post 22: "I hate to tell you this but 18 foot of coax if the antenna is working will do nothing ......

18 foot is the wrong length even if your tryng to use coax to tune it ....and 50 ohm coax is the wrong type anyway ."

DO YOU SEE A PATTERN YET!? Have you ever in your life as a profession every day for a living solved antenna problems in 18 wheelers?

No? Let us go on:

post 33 "Another CB myth cutting coax fixes SWR ."

Then Gadfly comes in with his pissing on the poor truck driver in post 39.

Along comes big M making jokes about antenna lube, all aimed at humiliating the truck driver who dared to post His opinion. Something absolutely not tolerated by all the ham operating mostly non truck driving members of this CB forum on a truck drivers website. You all leave a bad taste in peoples mouths and cause them to no longer desire to speak what they think out of concern for the piranha like attacks and humiliation you will force them to suffer. This has all along been the real point I wished to get across, something the only real tech ever at this site was banned for doing. Speaking truth.

Why it is you simply cannot allow others to come in and post their thoughts without fear of immediate attack I simply fail to understand. It is called civility and common decency, respect for your fellow man. Most of you guilty of this are not even truck drivers and are to a person ham operators. Again, do you see a pattern here? You really should try to allow people to speak and let it stand for what is is without coming in every single time forcing your 'corrections' of 'bad thought' upon every member of this board. I see you then try to act like the innocent nice guy having started the frenzy wherein the pack must come in to make their addition to the million little paper cuts driving anyone away who dares to say anything you do not agree with.

Far too boring and a useless waste of time but you go on with multiple posts harping the same idea ad nauseum. Yes a new word, meant to give color to ad infinitum of a specific nature. I am really tired of this thread and the attitudes here so you can have your cartoon channel back. Unlike many, I have a full life and this is just not worth the time.