You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

No 007, I thought you were referring to Skirtchaser's 1/4 wave without a ground plane.

I agree that a direct fed 1/4 wave with an effective ground plane is a very effective antenna if you get it up 30'+. However, I doubt that the matching devices used in most of the antennas we talk about in CB are loosing as much as 4db due to the matcher. There is some loss involved with transforming any impedance to another value in order to make a transmitter happy, but I don't know of anyone here capable of actually measuring what this value is.

I have had several A99's over time and I agree some act bad, but I have never seen one that did not talk good and the one I use today is one of the original A99's and it does not cause TVI. But with the thousands of A99 out there it would not surprise me that some are bad and maybe don't perform as well.

In my area here in Houston probably 99% of the stations that talk locally here hit my stations with signals from S3 - S9+. Now if one is 4db better than another, what difference does that make?

<blockquote data-quote="Marconi" data-source="post: 95615" data-attributes="member: 903">No 007, I thought you were referring to Skirtchaser&#039;s 1/4 wave without a ground plane. I agree that a direct fed 1/4 wave with an effective ground plane is a very effective antenna if you get it up 30&#039;+. However, I doubt that the matching devices used in most of the antennas we talk about in CB are loosing as much as 4db due to the matcher. There is some loss involved with transforming any impedance to another value in order to make a transmitter happy, but I don&#039;t know of anyone here capable of actually measuring what this value is.&nbsp; I have had several A99&#039;s over time and I agree some act bad, but I have never seen one that did not talk good and the one I use today is one of the original A99&#039;s and it does not cause TVI. But with the thousands of A99 out there it would not surprise me that some are bad and maybe don&#039;t perform as well. In my area here in Houston probably 99% of the stations that talk locally here hit my stations with signals from S3 - S9+. Now if one is 4db better than another, what difference does that make?</blockquote>

[QUOTE="Marconi, post: 95615, member: 903"] No 007, I thought you were referring to Skirtchaser's 1/4 wave without a ground plane. I agree that a direct fed 1/4 wave with an effective ground plane is a very effective antenna if you get it up 30'+. However, I doubt that the matching devices used in most of the antennas we talk about in CB are loosing as much as 4db due to the matcher. There is some loss involved with transforming any impedance to another value in order to make a transmitter happy, but I don't know of anyone here capable of actually measuring what this value is. I have had several A99's over time and I agree some act bad, but I have never seen one that did not talk good and the one I use today is one of the original A99's and it does not cause TVI. But with the thousands of A99 out there it would not surprise me that some are bad and maybe don't perform as well. In my area here in Houston probably 99% of the stations that talk locally here hit my stations with signals from S3 - S9+. Now if one is 4db better than another, what difference does that make? [/QUOTE]

Top Bottom