Hi Bob
Do you have a 40 meter antenna hanging on your tower? Sometimes a 40 meter
antenna too close will mess up 15. 73
Tom W7WHy
> The tower project went well, the antenna is up and although we did run
> into
> some problems with the HamIV rotator. Somehow the four bolts that hold the
> bell housing together had dropped out (vibration I guess) anyway after
> taking the rotor down and reworking it all including new grease, all is
> well
> and it is working.
>
> The antenna doesn't cover much of the 15 meter band right now.
>
> I am talking about from 20.959 to 21.172 is my 2.0:1 points. It never does
> come down completely to 1:1 on 15 mtrs like it does on 20 mtrs and 10
> mtrs.
>
> 21.080 is its point of best resonance and it only comes down to 1.8.
>
> So I think this may be a feed line length issue. I also installed an
> additional coax BALUN after already having the Hygain BALUN inline, so I
> am
> going to take the coax BALUN out and then I will see what it will do.
>
> 20 mtrs from 13.900 to 14.275 < 2:1 range
> from 14.000 to 14.165 < 1.5 range
> from 14.000 to 14.080 it is flat.
>
> 10 mtrs 28.000 to 28.870 it is less than 1.5
>
> If I solve this 15 mtr issue I will be very happy with this beam, thanks
> for
> all the help and support.
>
> Bob AD5VJ
>
>> -----Original Message----
>> From: Jim Hargrave [mailto:w5ifp@gvtc.com]
>> Sent: Thursday, April 01, 2010 9:25 PM
>> To: Tower and HF antenna construction topics.
>> Cc: ad5vj@ad5vj.com
>> Subject: RE: [TowerTalk] Hygain TH-6DX
>>
>> Bob,
>>
>> My Manual has the curves. I'll scan the page and send it to you direct.
>>
>> 73's Jim - W5IFP
>>
>>
>> > -----Original Message-----
>> > From: towertalk-bounces@contesting.com
>> > [mailto:towertalk-bounces@contesting.com]On Behalf Of Bob AD5VJ
>> > Sent: Thursday, April 01, 2010 5:49 PM
>> > To: towertalk@contesting.com
>> > Subject: [TowerTalk] Hygain TH-6DX
>> >
>> >
>> > I have opted to go the TH-6DX route due to time constraints on
>> > getting help
>> > and also due to the fact that I cannot afford what it would take
>> > to get all
>> > the other parts to make it a whole antenna at this time.
>> >
>> > I will have to budget for that for next year possibly or later the
>> way my
>> > economy is looking here.
>> >
>> > Does anyone have what would be considered a normal looking swr
>> > curve for the
>> > TH-6DX? The TH-7DX manual has one but the manual for the TH-6DX
>> > does not. I
>> > have looked on Google and the only thing it comes up with is
>> something
>> > called a 'torrent download' whatever that is.
>> >
>> > Anyway can't find one does anyone happen to have one or have a copy
>> of the
>> > May 1970 Ham Radio Magazine. Someone told me there is a curve it in
>> on the
>> > TH-6DX.
>> >
>> >
>> > Thanks
>> > Bob AD5VJ
>> >
>> > 73,
>> > Bob AD5VJ
>> >
>> >
>> >
>> > _______________________________________________
>> >
>> >
>> >
>> > _______________________________________________
>> > TowerTalk mailing list
>> > TowerTalk@contesting.com
>> > http://lists.contesting.com/mailman/listinfo/towertalk
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|