another thing to consider is, that if the antenna is at ground level, or
just above, it'll probably show a high SWR.
Those antennas are ground plain type antennas meant to be mounted well off
the ground.
Also, if it's close to a structure, like a house, garage, shed, whatever,
it'll show a high SWR as well.
I had an antron 99 for a number of years, and when I eventually tried to use
it on 10 meters, i had a high SWR too..but that was because it was on the
ground, without ground plains, and close to a wooden fence.
If you get the antenna up off the ground, use the ground plains, then it'll
probably play pretty well on 10.
73
Colin, V A6BS
----- Original Message -----
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, November 05, 2011 9:40 AM
Subject: Re: 10 meters
> Well, that doesn't sound great. I'm no antenna geek, but here's a few
> thoughts to rattle around in your skull:
>
> Be sure all coax and connectors are good from radio to antenna,
> including jumpers. Be sure you have a good ground and all connections
> are good and clean and tight. This would include coax center to
> antenna, coax braid to ground, and all joints in the antenna.
>
> Hope you get it solved and bag a bunch of DX,
> Steve KW3A
> On 11/5/2011 11:13 AM, mark wrote:
>> Hi
>> Well, it is the strangest thing. The SWR is higher at the top and
>> bottom of the band, which is what one would expect. However, it just
>> refuses
>> to get much below 4 and that is somewhere in the middle of the band.
>> I loosen the clamp and slide the telescoping section in and out a few
>> inches , but this just adjusts the point of the dip.
>>
>> God bless,
>> Mark
>>
>> God Loves you!
>> You can visit my website at:
>> http://christiantraditions.info
>> Please visit my blog at:
>> http://christian-traditions.blogspot.com
>>
>>
>> -----Original Message-----
>> From: For blind ham radio operators
>> [mailto:[log in to unmask]]
>> On Behalf Of Steve Forst
>> Sent: Saturday, November 05, 2011 6:50 AM
>> To: [log in to unmask]
>> Subject: Re: 10 meters
>>
>> Mark,
>>
>> Is there any way to adjust the antenna length? This will work better
>> and put more RF in the sky than messing around with dueling tuners.
>> Your radio is probably folding back power to protect itself.
>>
>> Do some swr checks across the entire 10 meter band and see if there is a
>> low spot anywhere in the band. Then you can see if you need to make
>> it longer or shorter.
>>
>> 73, good luck,Steve KW3A
>>
>> On 11/5/2011 9:29 AM, Fred Adams wrote:
>>> I have an IMAX 2000 with a standing wave of 1.3 on 10 meters and with my
>>> LDG antenna tuner I can tune all the way up to 20 meters. The SWR is
>>> pretty high on 20 meters but the LDG AT 1000 tunes it OK.
>>>
>>> -----Original Message-----
>>> From: For blind ham radio operators
>>> [mailto:[log in to unmask]] On Behalf Of John Miller
>>> Sent: Saturday, November 05, 2011 8:41 AM
>>> To: [log in to unmask]
>>> Subject: Re: 10 meters
>>>
>>> an 11 meter vertical shouldn't be anywhere near that high an SWR on 10
>>> meters unless something's wrong with it, it might be close to 2.0 in the
>>> lower portion of the band but depending on what it is, I've seen the old
>>> antron99's and the like, solarcom A99, Imax2000, all the same antenna
>>> there's another one too, carry a good SWR from the bottom of 12 meters
>>> all the way to about 29 MHz before it went to 2.0 and an internal tuner
>>> brought it down fine, same with the maco V58 and various others so I'd
>>> be
>>> more inclined to think you have an antenna problem if the SWR's that
>>> high.
>>> ----- Original Message -----
>>> From: "mark"<[log in to unmask]>
>>> To:<[log in to unmask]>
>>> Sent: Saturday, November 05, 2011 12:18 AM
>>> Subject: Re: 10 meters
>>>
>>>
>>>> Hi
>>>> I was excited to here both the Javanese and the station from
>>> Panama.
>>>> The only thing was that as hard as I tried, I couldn't contact anyone.
>>>> I think that the SWR on my converted 11 meter vertical is somewhere
>>>> between
>>>> 4
>>>> and 5. With the external antenna tuner it comes down to 3.4 and I
>>>> clean up the rest with an the internal tuner on my radio. I am
>>>> guessing that if I could get that SWR down below 2 that I would start
>>> making contacts.
>>>>
>>>> God bless,
>>>> Mark
>>>>
>>>> God Loves you!
>>>> You can visit my website at:
>>>> http://christiantraditions.info
>>>> Please visit my blog at:
>>>> http://christian-traditions.blogspot.com
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: For blind ham radio operators
>>>> [mailto:[log in to unmask]]
>>>> On Behalf Of Phil Scovell
>>>> Sent: Friday, November 04, 2011 4:54 PM
>>>> To: [log in to unmask]
>>>> Subject: 10 meters
>>>>
>>>> Well, it has been years since I have copied J A signals on 10 meters =
>>>> like it has been the last couple of weeks. 10 and 12 meters both, not
>>>> = to mention 15 meters, has nearly been plugged with Japanese
>>>> stations. = It sure doesn't take much, generally, to work the pacific
>>>> on 10, that's = for sure.
>>>>
>>>> Phil.
>>>> K0NX
>>>
>>>
>>>
>>
>>
>>
|
