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#1
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Ahoy.
I have a new CB and a new Wilson Lil Wil antenna. The instructions with the Lil Wil say to: Check SWR on channel 1 Check SWR on channel 40 If channel 1 has a lower SWR than channel 40, cut 1/4" from the antenna top and measure again...continue until the SWR for channel 1 and 40 is about equal. Channel 1 gave me a nice low 1:1.4 Channel 40 gave me a nasty 1:2.8 So I snipped off 1/4" and measured again. Channel 1 gave me 1:1.3 Channel 40 gave me 1:2.5 So my question is, snipping off that 1/4" really improved the channel 1 SWR but only dropped channel 40 a little bit. How many 1/4" increments am I gonna hafta snip before these two equal out? Also, I'm guessing that at some point, channel 1 is going to start to go back up (instead of improving)...should I stop there and live with whatever the higher channels are displaying? Rather than continuing to snip until 1 and 40 are about equal? Thanks, Kahuna |
#2
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On Wed, 04 May 2005 17:59:32 -0700, Big Kahuna wrote:
Ahoy. I have a new CB and a new Wilson Lil Wil antenna. The instructions with the Lil Wil say to: Check SWR on channel 1 Check SWR on channel 40 If channel 1 has a lower SWR than channel 40, cut 1/4" from the antenna top and measure again...continue until the SWR for channel 1 and 40 is about equal. Channel 1 gave me a nice low 1:1.4 Channel 40 gave me a nasty 1:2.8 Nasty? So I snipped off 1/4" and measured again. Channel 1 gave me 1:1.3 Channel 40 gave me 1:2.5 So my question is, snipping off that 1/4" really improved the channel 1 SWR but only dropped channel 40 a little bit. How many 1/4" increments am I gonna hafta snip before these two equal out? Also, I'm guessing that at some point, channel 1 is going to start to go back up (instead of improving)...should I stop there and live with whatever the higher channels are displaying? Rather than continuing to snip until 1 and 40 are about equal? Thanks, Kahuna Vinnie S. |
#3
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Vinnie S. wrote:
Nasty? Nasty azz ewe wanna be? ($1-two live) |
#4
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Keep clipping, chn 1 may go up, but even if it goes up don't go over 1.5,
then depends on where you will talk more, 1-20 or 20-40 try to keep that section below 1.5. Rich. "Big Kahuna" wrote in message ... Ahoy. I have a new CB and a new Wilson Lil Wil antenna. The instructions with the Lil Wil say to: Check SWR on channel 1 Check SWR on channel 40 If channel 1 has a lower SWR than channel 40, cut 1/4" from the antenna top and measure again...continue until the SWR for channel 1 and 40 is about equal. Channel 1 gave me a nice low 1:1.4 Channel 40 gave me a nasty 1:2.8 So I snipped off 1/4" and measured again. Channel 1 gave me 1:1.3 Channel 40 gave me 1:2.5 So my question is, snipping off that 1/4" really improved the channel 1 SWR but only dropped channel 40 a little bit. How many 1/4" increments am I gonna hafta snip before these two equal out? Also, I'm guessing that at some point, channel 1 is going to start to go back up (instead of improving)...should I stop there and live with whatever the higher channels are displaying? Rather than continuing to snip until 1 and 40 are about equal? Thanks, Kahuna |
#5
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Anything below 1:1.5 is fine. I'd say, keep snipping. Even if you use
the lower channels most, you should keep clipping at least until you get channel 40 under 1:2 so you don't hurt anything on the rare occasion you do want to go all the way up to 40. |
#6
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On 05 May 2005 01:53:32 GMT, Buzzard wrote:
Vinnie S. wrote: Nasty? Nasty azz ewe wanna be? ($1-two live) I misread his post. The Little Wil's are notorius for wicked SWR, and so-so performance. He was probably better off with the Wilson 1000 or the K40. Both are superior antennas to that little wil. Vinnie S. |
#7
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Big Kahuna wrote:
Ahoy. I have a new CB and a new Wilson Lil Wil antenna. The instructions with the Lil Wil say to: Check SWR on channel 1 Check SWR on channel 40 If channel 1 has a lower SWR than channel 40, cut 1/4" from the antenna top and measure again...continue until the SWR for channel 1 and 40 is about equal. Channel 1 gave me a nice low 1:1.4 Channel 40 gave me a nasty 1:2.8 So I snipped off 1/4" and measured again. Channel 1 gave me 1:1.3 Channel 40 gave me 1:2.5 So my question is, snipping off that 1/4" really improved the channel 1 SWR but only dropped channel 40 a little bit. How many 1/4" increments am I gonna hafta snip before these two equal out? Also, I'm guessing that at some point, channel 1 is going to start to go back up (instead of improving)...should I stop there and live with whatever the higher channels are displaying? Rather than continuing to snip until 1 and 40 are about equal? Thanks, Kahuna You are correct, it is possible to cut too much off, and the Channel 1 SWR will start going up. But, there is nothing terribly wrong with the readings your getting. It's always nice to get a better match, so I would continue clipping, but only until you get the Channel 40 SWR down below 1:2. Then don't worry about it. The Channel 1 SWR is already very good, and you are never going to notice the slight mismatch at the high end. -- Martin E. Meserve - K7MEM http://www.k7mem.com (remove _nospam_ from my email to reply) |
#8
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Buzzard wrote:
Vinnie S. wrote: Nasty? Nasty azz ewe wanna be? ($1-two live) That's what I call inflation! Used to be just a nickle. Jeff |
#9
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Your theory is right but your numbers don't make sense to me. If you
snipped off some and the ch40 reading went down... then the ch1 reading should have increased. By the way... Lil Wils are not much good. They are notoroius for bad matching characteristics because of their very short length. The performance of that short an antenna is very poor. Professor www.telstar-electronics.com Big Kahuna wrote: Ahoy. I have a new CB and a new Wilson Lil Wil antenna. The instructions with the Lil Wil say to: Check SWR on channel 1 Check SWR on channel 40 If channel 1 has a lower SWR than channel 40, cut 1/4" from the antenna top and measure again...continue until the SWR for channel 1 and 40 is about equal. Channel 1 gave me a nice low 1:1.4 Channel 40 gave me a nasty 1:2.8 So I snipped off 1/4" and measured again. Channel 1 gave me 1:1.3 Channel 40 gave me 1:2.5 So my question is, snipping off that 1/4" really improved the channel 1 SWR but only dropped channel 40 a little bit. How many 1/4" increments am I gonna hafta snip before these two equal out? Also, I'm guessing that at some point, channel 1 is going to start to go back up (instead of improving)...should I stop there and live with whatever the higher channels are displaying? Rather than continuing to snip until 1 and 40 are about equal? Thanks, Kahuna |
#10
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On 7 May 2005 15:15:49 -0700, "Professor"
wrote in .com: Your theory is right but your numbers don't make sense to me. If you snipped off some and the ch40 reading went down... then the ch1 reading should have increased. Only if the dip is between 1 and 40. His antenna was too long for channel 1 so shortening it reduced the SWR across the band. ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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