Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: Prev 1 [2]   Go Down
  Print  
Author Topic: Very high SWR?????  (Read 2767 times)
AE5KH
Member

Posts: 29




Ignore
« Reply #15 on: February 19, 2013, 03:01:33 PM »

My next project is to get a Little Tarheel II mounted for my HF side of the IC7000, but if I can't get the VHF/UHF side working can't start on that.
Logged
KK9CQ
Member

Posts: 6




Ignore
« Reply #16 on: February 19, 2013, 03:48:40 PM »

I'm confused !
What is a 5/6 SWR ? Or a 10 SWR ?
Bob
KK9CQ
Logged
AE5KH
Member

Posts: 29




Ignore
« Reply #17 on: February 19, 2013, 06:56:05 PM »

Well thank you guys for all of your help.

I thought that the number I was getting did not make much sense to me so I got ahold of another SWR Watt meter and this is what I got.

@ 144.700 SWR 1.25 @ 5 Watts
@ 147.900 SWR 2 @ 5 Watts
@ 440.100 SWR 1.5 @ 3 Watts
@ 449.900 SWR 1 @ 5 Watts

 These are much better numbers.

Now on to my next project, to mount a Little Tarheel II for the HF side of the IC7000.  Lets see how much trouble I get into with that!!!!
Logged
G7MRV
Member

Posts: 480


WWW

Ignore
« Reply #18 on: February 23, 2013, 10:35:39 PM »

Well thank you guys for all of your help.

I thought that the number I was getting did not make much sense to me so I got ahold of another SWR Watt meter and this is what I got.

@ 144.700 SWR 1.25 @ 5 Watts
@ 147.900 SWR 2 @ 5 Watts
@ 440.100 SWR 1.5 @ 3 Watts
@ 449.900 SWR 1 @ 5 Watts

 These are much better numbers.

Now on to my next project, to mount a Little Tarheel II for the HF side of the IC7000.  Lets see how much trouble I get into with that!!!!


I was going to jump in with a few suggestions here, but it looks like you've found your culprit!

What I would suggest though, is to invest in a good dummy load. Get one suitable for at least the maximum power you are likely to use. This would have saved you time with this problem, as a quick test into the dummy load would likely have showed up the bad meter.

I keep a 250w rated load in the boot (trunk) of my car alongside the radio, as my HF antenna isnt always fitted. When I dont have a HF antenna fitted for a while, I switch the radios HF antenna port to the load. That way I cant inadvertantly transmit on HF into an open port. (the VHF/UHF antenna is a permanent mount)
Logged

K1CJS
Member

Posts: 6034




Ignore
« Reply #19 on: February 24, 2013, 07:55:18 AM »

Glad to hear you've found a solution, but keep in mind that most two or more band VHF/UHF antennas have been factory adjusted for optimum preformance--even if the SWR seems to read high.  You're best bet with these antennas is to leave the adjustments made alone UNLESS the instructions tell you otherwise.  They will work OK and without any damage to your rig, even at seemingly high SWR.

« Last Edit: February 24, 2013, 08:00:05 AM by K1CJS » Logged
Pages: Prev 1 [2]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!