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I have a K40 antenna hooked to a Uniden PC76. In just overnight I went from a 1:1.5 to 3.5. I checked to see if there was anything loose. There wasn't so then I scraped and sanded my mirror bar. changed it none. Any ideas to do will help me greatly.

Whats the difference between the dynamic speaker and a noise canceling spaeaker? Thanks for imput about the squeal. I have the 636 mic so thats not the problem. The D-11 has been clipped for a long time. The squeal started happening after the echo board and talkback was done. I guess there...

Why reconnect D-11? Doesnt this let out all that my radio will do? Everyone tells me that they cant belive that my radio isnt one of the higher costing radios. They tell me that is very crisp and clear. All I want is my TB to be on without the squeal. Is a bigger ohm what needs to in the TB?

My Uniden PC76XL has echo board and talk back, peaked, tuned and D-11 clipped. With talk back on and mic gain up my speaker squeals. Speaker is across the cab from me. Will a noise canceling speaker correct this squeal? What is the difference between a dynamic speaker and a noise canceling...

Keep reading this forum and you will be amazed at what you learn. After reading reading different things here and then talking with the guys I run with they want to know where I learned what i know and I tell them thats where knowledge will cost. :twisted:

I had the cobra 25wxst, I liked it a lot and now I miss the wx. I traded in for a uniden pc76xl that was already peaked and tuned, then spent $70 on echo board. I thought I needed bigger radio to get out further and after spending $110 total I was still only getting out a couple miles. Then I...

alright I'll try that with the radio but I'm afraid to mess with the antenna because of what I went through to set my swr's to 1.2 :lol:

The clip was done before I got the radio. I dont have a problem running it turned down. I like the fact I have to turn my radio down :twisted: :wink: I just dont like the squeel. I didnt know if I needed to take it back to the shop. I am using a 636 mic. Which brings me to my other concern when...

:D Got an echo board and talk back installed Saturday. Talkback turns off with the ch 9 switch. Radio has been peaked and tuned and D-11 clipped. With talk back on I can only turn mic gain up to just less than 3/4 of the way and then it starts sqealling. Turn TB off and squeal is gone. Is this a...

Well after I started cutting it down a little further my swrs are down to 1 on 20, 1.25 on 1 and a little less on 40. I think this is about the best I'm going to get. I'll keep the coat hanger trick in mind for the next time thanks

Its on the mirror bar. I'm about to go shorter on the whip. Worst case is I have to buy another one. The whip now is at 46 1\8" overall its a little over 5' from tip to mounting bracket. ??

I have a new K-40 antenna, 49" whip. Checked swr's and 40 was higher than 1. started to shorten the whip and it was getting better, 1 was about 1.25 and 40 was about 2 then I shortened it another quarter inch and it went to hell with 1 over 2 and 40 over 3.5. What do I do now?

I found this on eBay and I have seen them on some trucks but what is it and does it help? http://cgi.ebay.com/GROUND-PLANE-KIT-4-Wilson-Firestik-CB-Ham-Radio-Antenna_W0QQitemZ110098832743QQihZ001QQcategoryZ48692QQtcZphotoQQcmdZViewItem

I really dont what brand it is. I know I have better SWR's with it than I do with the Firestik I have. I'm going to trade or sell this cobra 25 for better antenna.

After listening todayI guess its doing good. I just need to get use to it because I talked and they talked back for a about a mile or so after they passed me on channel 19 in Birmingham Al. If you,ve ever been thru there you know how load everyone is.

I guess 19 has to much traffic but it just seems like that cobra 25 did better. Can I be receiving better on one channel over others, excluding 19 because of all the traffic?

Okay now whats anl\nb? Sorry about the stupid question but The 25 was pretty much plug and play for me :lol:

The Uniden 76 I have is going good. Everyone I have talked to says it sounds great. I talked to a guy about 15 to 18 miles from the house and he told me I was talking over everyone he was talking to upthere. That was on channel 1. While talking on channel 19 I dont think that I'm receiving as...

alright I found d-11 and its clipped but dont see a jumper on the bottom

:shock: :? :lol: thats was greek to me. Is there scematics that can look at so I can know what you just said, Thanks :)