Very interesting. And, not at all what I expected.
73, de Lou K2LKK
At 01:59 PM 2/27/2008 +0000, you wrote:
>I received the below response from LDG when I enquired if the meter could
>give accurate readings at 70mhz.
>
>Sorry, we've never tested there. Since we use the input frequency in
>calculating
>the forward and reverse power, I'm guessing the it will not be accurate
>there.
>
>Though this appears a bit vague, it would suggest the TW2 probably won't be
>all that reliable outside the pre-defined band ranges.
>
>Cheers,
>
>Tim, (GI4OPH)
>
>------------------------
>----- Original Message -----
>From: "Senk, Mark J. (CDC/NIOSH/NPPTL)" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Wednesday, February 27, 2008 1:36 PM
>Subject: Re: TW2 question
>
>
> > What happens if you transmit through the TW2 with the band on the =
> > incorrect setting?
> >
> > I wonder if they switch a tuned circuit. =20
> > If not, maybe they apply some factor to compensate for power =
> > sensitivity. So, if you send 5 watts on 6 meters and the meter is set =
> > to 2 meters, it might read higher. And higher yet when set to 1.25 =
> > meters. =20
> > Since the SWR is a ratio, it ought to remain the same regardless of the =
> > TW2 band setting.
> > If you plan to experiment, use a 50 ohm load and low power.
> >
> > Hey, don't call me if experimentation damages your TW2. =20
> >
> > Mark
> > =20
> >
> >
> > Mark J. Senk | 412-386-6513 | [log in to unmask]
> > <img =
> > src=3D"http://212.179.113.209/QRCode/img.php?d=3DBEGIN%3AVCARD%0AN%3AMark=
> > %20J.%20Senk%0ATEL%3A412-386-6513%0AEMAIL%3Azia7%40cdc.gov%0AEND%3AVCARD&=
> > c=3DContact%20Mark%20Senk&s=3D4"
> > alt=3D"QR4Senk" />=A0
> >
> > -----Original Message-----
> > From: For blind ham radio operators =
> > [mailto:[log in to unmask]] On Behalf Of John Miller
> > Sent: Tuesday, February 26, 2008 10:02 PM
> > To: [log in to unmask]
> > Subject: Re: TW2 question
> >
> > you push the outer 2 most buttons for 1 second and it will say what band =
> > you're on, again changes it to the next band, it will say in voice what =
> > band it's going in to.
> > ----- Original Message -----
> > From: "Lou Kline" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Tuesday, February 26, 2008 8:53 PM
> > Subject: Re: TW2 question
> >
> >
> >> How do you set the band? I don't see anything on mine that looks like =
> >
> >> a band selector.
> >>
> >> --Lou K2LKK
> >>
> >>
> >>
> >> At 02:41 PM 2/26/2008 -0500, you wrote:
> >>>Ah-ha. When all else fails read the manual. I got my TW-2 just=20
> >>>before Christmas only because they were being discontinued and figured =
> > I should
> >>>grab it. Plugged it in to hear it speak, but have never used it or =
> > read
> >>>the manual So now I see how to set the band.
> >>>
> >>>many tnx Butch and John. I would have been very confused if I had=20
> >>>tried using it without setting the band.
> >>>
> >>>73, Steve KW3A
> >>>----- Original Message -----
> >>>From: "Butch Bussen" <[log in to unmask]>
> >>>To: <[log in to unmask]>
> >>>Sent: Tuesday, February 26, 2008 2:20 PM
> >>>Subject: Re: TW2 question
> >>>
> >>>
> >>> > You do have to select ehe band on the tw2, it goes from 50, 144,=20
> >>> > 220, and 440. I don't know how broad these bands are, but=20
> >>> > certainly not that narrow. These types of readings are all=20
> >>> > relative anyhow. I'm sure the
> >>> > 6 meter band would be close enough for the 70 meg band. BTW, what=20
> >>> > was the web page that had the a c adapters? I called a e s and=20
> >>> > they didn't have a clue, said they didn't have anything.
> >>> > 73s
> >>> > Butch Bussen
> >>> > wa0vjr
> >>> >
> >>> > On Tue, 26 Feb 2008, Steve
> >>> > Forst wrote:
> >>> >
> >>> >> Tim,
> >>> >>
> >>> >> LDG is *very* good at answering e-mails. I would contact them and =
> >
> >>> >> try and get the real answer.
> >>> >>
> >>> >> [log in to unmask]
> >>> >>
> >>> >> since it is microprocessor controlled, there may be something=20
> >>> >> encoded that will not allow you to do what you want.
> >>> >>
> >>> >> I must admit I am confused about what John said. While the =
> > manual=20
> >>> >> says
> >>> >> something like "Simply select the band you wish to operate on..."=20
> >>> >> I assumed it was refering to selecting the band on your=20
> >>> >> transceiver, not on the TW-2.
> >>> >> The only controls I am aware of on my TW-2 are the same as on the
> >>> >> TW-1: F
> >>> >> power, R power and swr buttons and a volume knob. Maybe I am=20
> >>> >> missing something besides my hair.
> >>> >>
> >>> >> 73, Steve KW3A.
> >>> >>
> >>> >>
> >>> >> ----- Original Message -----
> >>> >> From: "John Miller" <[log in to unmask]>
> >>> >> To: <[log in to unmask]>
> >>> >> Sent: Tuesday, February 26, 2008 11:33 AM
> >>> >> Subject: Re: TW2 question
> >>> >>
> >>> >>
> >>> >>> I know you have to change bands on it, but how far it extends to=20
> >>> >>> I don't know, for example, I can use the 440 setting to measure=20
> >>> >>> GMRS in the
> >>> >>> 467
> >>> >>> range, where I checked mine and it works. I know you have to set=20
> >>> >>> the band, but how far each one actually extends to is a good=20
> >>> >>> question.
> >>> >>> ----- Original Message -----
> >>> >>> From: "Tim Crawford" <[log in to unmask]>
> >>> >>> To: <[log in to unmask]>
> >>> >>> Sent: Tuesday, February 26, 2008 11:27 AM
> >>> >>> Subject: TW2 question
> >>> >>>
> >>> >>>
> >>> >>>> Hi,
> >>> >>>>
> >>> >>>> Does the TW2 measure continuously between 50 and 144 mhz, or are =
> >
> >>> >>>> the =3D bands set as defined ranges?
> >>> >>>>
> >>> >>>> Reason for asking is that here in the UK, we have a frequency=20
> >>> >>>> allocation =3D at 70mhz, (4 meters).
> >>> >>>>
> >>> >>>> Cheers,
> >>> >>>>
> >>> >>>> Tim, (GI4OPH)
> >>> >>>>
> >>> >>>
> >>> >>>
> >>> >>>
> >>> >>
> >>> >
> >>> >
> >>> >
> >>>
> >>>
> >>>
> >>>
> >>>--
> >>>No virus found in this incoming message.
> >>>Checked by AVG Free Edition.
> >>>Version: 7.5.516 / Virus Database: 269.21.1/1300 - Release Date:=20
> >>>2/26/2008 7:50 PM
> >>
> >> Louis Kim Kline
> >> A.R.S. K2LKK
> >> Home e-mail: [log in to unmask]
> >> Work e-mail: [log in to unmask] Work Telephone: (585) 697-5740
> >>=20
> >
> >
> > --
> > This email has been verified as Virus free.
> > Virus Protection and more available at http://www.plus.net
> >
>
>
>
>
>--
>No virus found in this incoming message.
>Checked by AVG Free Edition.
>Version: 7.5.516 / Virus Database: 269.21.1/1303 - Release Date: 2/28/2008
>12:14 PM
Louis Kim Kline
A.R.S. K2LKK
Home e-mail: [log in to unmask]
Work e-mail: [log in to unmask]
Work Telephone: (585) 697-5740
|
