Hi Ray, yes, that is true as to the dual driven element KLM/M2 antennnas.
But the THx series uses the older BN86/newer BN4000 units, which are 1:1.
73 de Billy, AA4NU
> On April 2, 2020 at 3:11 PM Raymond Benny <rayn6vr@gmail.com> wrote:
>
>
> If its feeding a dipole type antenna, which your antenna is, you need a
> 1:1balun. 1:1 matches 50 ohm coax to the dipole element, which is near 50
> ohms.
>
> If it is a dual driven element then use a 4:1 balun. Dual driven element
> impedance is near 200 ohm and is transforms 50 ohm for the coax.
>
> Ray
> N6VR
>
> On Thu, Apr 2, 2020, 1:01 PM Mark Pride via TowerTalk <
> towertalk@contesting.com> wrote:
>
> > Pretty certain its 1:1
> >
> > Regards,
> >
> > Mark, K1RX
> >
> >
> >
> >
> >
> > On Thursday, April 2, 2020, 04:00:21 PM EDT, <marsh@ka5m.net> wrote:
> >
> > It never ceases to amaze me how much basic technical information is NOT in
> > product manuals.
> >
> > 73,
> > Marsh, KA5M
> >
> >
> >
> > -----Original Message-----
> > From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Phil
> > Sent: Thursday, April 02, 2020 2:26 PM
> > To: towertalk@contesting.com
> > Subject: [TowerTalk] Need info on balun for Hygain TH-7DX antenna
> >
> > It appears that the balun on my TH-7 has died. Can someone please tell me
> > if this is a 4:1 balun....the Hygain manual is silent on this subject as
> > far
> > as I can tell.
> >
> > thanks, 73, Phil W5BVB
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > 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
> >
> _______________________________________________
>
>
>
> _______________________________________________
> 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
|