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Subject:
Re: TS590 internal watt and SWR meter VS LDG TW1
From:
Tom Behler <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Wed, 16 Nov 2011 20:21:04 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (62 lines) 
    Good suggestion, Gerry.

I'll try it!

Tom Behler:  KB8TYJ

----- Original Message ----- 
From: "Gerry Leary" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, November 16, 2011 8:00 AM
Subject: Re: TS590 internal watt and SWR meter VS LDG TW1


> If you can, take the TW1 out of the circuit and see if the kkenwood meter
> changes after that.
> ----- Original Message ----- 
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, November 15, 2011 4:32 PM
> Subject: TS590 internal watt and SWR meter VS LDG TW1
>
>
>> Hi, all.
>>
>> As I have been working on tuning my newly-installed 160 meter half sloper
>> antenna, I have noticed something interesting, when comparing the SWR's 
>> on
>> 160 meters that are given to me by the TS590 internal meter, and the LDG
>> TW1
>> talking watt meter.
>>
>> What I have noticed is that the TS590's meter gives me a 5 to 1 SWR at 
>> the
>> top and bottom of the band, with the lowest SWR at about 2.0 to 1 around
>> 18.300 or 18.400 MHZ.  Also, the TS590's internal auto-tuner seems to 
>> tune
>> the antenna from the top to the bottom of the band with no problem.
>>
>> Interestingly, though, my TW1 starts out ok with farily similar readings
>> to
>> those given by the TS590's internal meter, but as I get to the top of the
>> band, its SWR readings shoot up to about 12 or 13 to 1, in comparison to
>> the
>> 5 to 1 given by the TS590's internal meter.  All readings are taken with
>> the
>> TS590 auto-tuner in the off position, and with an output power of
>> approximately 30 watts.
>>
>> Would anyone have an explanation for these variations I am seeing?
>>
>> I do not seem to notice this much of a variation on other bands.
>>
>> As a side note, due to the fact that the MFJ 259B analyzer I am borrowing
>> gets confused because of the A M broadcast station in my area, I honestly
>> don't know what the resonant frequency of the antenna is, but I think I 
>> am
>> reasonable in saying that it's probably not too far from 18.300 or 18.400
>> MHZ.
>>
>> 73 from Tom Behler:  KB8TYJ
>

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