[TowerTalk] Need info on balun for Hygain TH-7DX antenna

[Gary K9GS]

Around here the HyGain "baluns" are called RF Fuses...73,Gary K9GS
-------- Original message --------From: W0MU Mike Fatchett <w0mu at w0mu.com> Date: 4/2/20  4:16 PM  (GMT-06:00) To: towertalk at contesting.com Subject: Re: [TowerTalk] Need info on balun for Hygain TH-7DX antenna Those baluns were and probably still are pretty bad.  Many other better solutions available.On 4/2/2020 2:18 PM, Billy Cox wrote:> 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 at 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 at contesting.com> wrote:>>>>> Pretty certain its 1:1>>>>>> Regards,>>>>>>   Mark, K1RX>>>>>>>>>>>>>>>>>>      On Thursday, April 2, 2020, 04:00:21 PM EDT, <marsh at 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 at contesting.com> On Behalf Of Phil>>> Sent: Thursday, April 02, 2020 2:26 PM>>> To: towertalk at 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 at contesting.com>>> http://lists.contesting.com/mailman/listinfo/towertalk>>>>>> _______________________________________________>>>>>>>>>>>> _______________________________________________>>> TowerTalk mailing list>>> TowerTalk at contesting.com>>> http://lists.contesting.com/mailman/listinfo/towertalk>>>>>> _______________________________________________>>>>>>>>>>>> _______________________________________________>>> TowerTalk mailing list>>> TowerTalk at contesting.com>>> http://lists.contesting.com/mailman/listinfo/towertalk>>>>> _______________________________________________>>>>>>>> _______________________________________________>> TowerTalk mailing list>> TowerTalk at contesting.com>> http://lists.contesting.com/mailman/listinfo/towertalk> _______________________________________________>>>> _______________________________________________> TowerTalk mailing list> TowerTalk at contesting.com> http://lists.contesting.com/mailman/listinfo/towertalk______________________________________________________________________________________________TowerTalk mailing listTowerTalk at contesting.comhttp://lists.contesting.com/mailman/listinfo/towertalk