You're not going to notice it all that much if the radials aren't the same
all the way around, differences in direction will be very slight at best. I
think I notice my metal house in the way more than I do the fact that I have
different length radials.
----- Original Message -----
From: "Richard B McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, September 12, 2014 9:40 AM
Subject: Re: the Effect of Non-symmetrical Radials on Radiation Patterns
> Hi Perry!
>
> Thanks for your below. Yeah, I am a little worried about radial symmetry.
> My radial pattern will be a bit more bowtie in shape rather than a circle.
> Regrettably, space limitations cause this : ( Do you have any ideas on
> how
> to go about addressing that so as to improve the effective radiation
> (transmition?) pattern?
>
> 73,
> Richard KK6MRH
>
> -----Original Message-----
> From: [log in to unmask]
> [mailto:[log in to unmask]]
>
> Sent: Thursday, September 11, 2014 9:26 PM
> To: [log in to unmask]
> Subject: RE: [KenwoodTS-2000] TS-2000 Internal Antenna Tuner Basics & the
> Effect of Radials on SWR
>
>
>
> The radials should be about a quarter wavelength on each band of interest.
> You can actually get by with shorter lengths as the "ground" will tend to
> shorten the physical length needed for an electrical quarter wavelength.
> Most studies show that you need a minimum of 16 radials for each band is
> needed for best performance. SWR is just one measurement of the antenna's
> efficiency. Radiation resistance is the other and is highly dependent on
> the
> radial field.
> I'd scrap the metal mesh as steel isn't the best conductor and will be a
> pain to lay. Also shielded wire is a waste. Just use 12 gauge THHN (your
> electrician friend should be able to get that) insulated copper wire.
> Actually anything bigger than 20 gauge or so is OK. You can use an
> electrical panel grounding tie strip to connect all the radials to the
> antenna's grounded base. The radial can just be laid on the ground and
> fastened down with "weed stop" fabric "staples" that look like oversized
> hair pins. You can even make your own from stiff wire. In a few weeks, the
> grass will have covered the wires.
> Any none symmetry of the radial field will tend to skew the antenna's
> pattern in the direction of the best radial coverage.
>
> Perry K4PWO
>
>
> -----Original Message-----
> From: [log in to unmask]
> [mailto:[log in to unmask]]
>
> Sent: Thursday, September 11, 2014 9:43 AM
> To: Richard B McDonald
> Subject: [KenwoodTS-2000] TS-2000 Internal Antenna Tuner Basics & the
> Effect
> of Radials on SWR
>
> Hi Steve! Your question (below) about my radial system leads me to ask
> everyone the following question: Is SWR affected by radials? Presently, I
> seem to have some trouble successfully using the TS-2000's internal
> antenna
> tuner. I seem to always get a "SWR" CW squawk : ( I *think* I should get
> an
> "A" CW squawk when the tuning was successful. Isn't that right? The
> following is a bit more background.
>
> Right now, *no* radials are laid-in. I have purchased all the materials
> for
> my radial system and made a plan, but I have not yet had time with my
> electrician friend (sighted) to lay it in. So far, just getting up this 43
> foot 160M - 6M vertical and laying in the ~75 feet LMR-400 coaxial feed
> line
> has been a fair amount of work. My radials will be the final step; and
> that
> should happen within a few days. The radial system *will be* the
> following:
>
> * 10'X4'W 19 gauge galvanized steel industrial mesh, centered at the base
> of
> the antenna
> * 4 ~43' 14 gauge shielded copper wires
> * About 8 ~7' random length radials like the last item
> * I may also connect to my neighbor's adjacent chain link fence ; )
>
> For now, I cannot even tell you what, exactly, my SWR is. My wife
> (sighted)
> cannot understand how to read the SWR meter (girls ; )). I will need a man
> to explain it to her; so she might then be able to tell me what it says if
> I
> were to ask her to read it for me.
>
> All of the foregoing are, I suppose, a result of my inexperience and
> normal
> learning curve growing pains attendant with being brand new to all this :
> (
> So, all the advice I can get is greatly appreciated.
>
> 73,
> Richard KK6MRH
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Steve Forst
> Sent: Wednesday, September 10, 2014 7:15 AM
> To: [log in to unmask]
> Subject: Re: TS-2000 Internal Antenna Tuner & Mode Basics on 6M
>
> Richard,
>
> Just curious. What kind of radial system were you able to put under the
> vertical?
>
> 73, Steve KW3A
>
> On 9/10/2014 9:54 AM, Richard B McDonald wrote:
>> Hi Steve!
>>
>> Thanks so much for your below. This is very helpful. I *totally* will
>> soon upgrade to "General." The contest you mention below will allow me
>> to trial-and-error my way around my HF antenna. I will report
> back about it.
>>
>> 73,
>> Richard KK6MRH
>>
>> -----Original Message-----
>> From: For blind ham radio operators
>> [mailto:[log in to unmask]]
>> On Behalf Of Steve Forst
>> Sent: Wednesday, September 10, 2014 4:30 AM
>> To: [log in to unmask]
>> Subject: Re: TS-2000 Internal Antenna Tuner & Mode Basics on 6M
>>
>> Richard,
>>
>> I'm not much of a 6 meter guy, although my new antenna will work on 6.
>> For what it's worth there is a VHF contest this weekend, starting at
>> 1800 UTC Saturday. I don't think you work CW, so most of the "good"
>> stuff will be USB with the main calling frequency at 50.125. Most of
>> the folks will be using horizontal antennas, but there is no reason
>> you can't make some contacts with your antenna. The other station will
>> just want your 4 digit grid square.
>>
>>
>> You may also hear 2 meter USB around 144.200 for this contest.
>>
>> As time goes on, you will learn what modes are used where and when and
>> so be in the proper mode at the proper place.
>>
>>
>> How is the antenna working? Since you do have a tech license, there
>> are places in the HF band where you can check it out and see how it
> works.
>> Maybe prowling around the bands will entice you to upgrade.
>>
>> 73, Steve KW3A
>>
>>
>>
>>
>>
>> On 9/8/2014 12:21 PM, Richard B McDonald wrote:
>>> Hi!
>>>
>>>
>>>
>>> I just got my 6M - 160M 43 foot vertical antenna up, and am now ready
>>> to explore HF for my first time. I want to start with the 6M band;
>>> since I
>> am
>>> only a technician for now. I have a Kenwood TS-2000. My questions
>>> relate to 1) use of the internal antenna tuner and 2) what mode to be
>>> in while scanning through the band listening for activity.
>>>
>>>
>>>
>>> About the internal antenna tuner, I know "SWR" in CW sounds if no
>>> match
>> can
>>> be found, but what should I hear if the tuning was successful? Also,
>>> is tuning only necessary before transmitting but not for receiving
>>> (just listening)? Basically, what's the best way to employ the
>>> internal antenna tuner?
>>>
>>>
>>>
>>> About "scanning" what I mean here is manually dialing through the
>>> band -
>> not
>>> auto scanning of any sort. So, when doing this what mode (e.g., AM,
>>> FM, USB, LSB) should I be in to best hear some activity? Also, am I
>>> correct that once I hear something I can then switch among these
>>> modes so as to better tune-in the activity?
>>>
>>>
>>>
>>> Many thanks! This is all new to me; so any tricks are greatly
>> appreciated.
>>> This is especially so for how best to use the internal antenna tuner!
>>>
>>>
>>>
>>> 73,
>>>
>>> Richard KK6MRH
>>>
>>>
>>>
>>
>>
>>
>
> ------------------------------------
> Posted by: "Richard B McDonald" <[log in to unmask]>
> ------------------------------------
>
> ------------------------------------
>
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