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ANOTHER ANTENNA IN THE BUILDING STAGES
https://www.hamradiodeals.co.uk/forums/viewtopic.php?f=59&t=102871
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Author:  M3FEH [ Sat Apr 27, 2019 7:13 am ]
Post subject:  ANOTHER ANTENNA IN THE BUILDING STAGES

:shock:

Morning folks were at it again.

Another portable antenna a Inverted V Tri band linked 80 40 and 20m with 80m loading coils and taking the design one further with 160m coils.

Will do the basic design first and get that operational and then think about the 160m coils. :yahoo:

Leads me to a question :blonde

On the coils am using is .75mm insulated wire with 55 turns on a 40mm former waste pipe that is. Do i double that amount of turns to gain 1.93mhz or there about for me second loading coil that replaces the 80m coil when want to op on 160m :think:

And below is the picture of me first 80m coil 3.700mhz

Karl 2E0FEH


Attachments:
File comment: NO1 OF TWO 80M COILS
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Author:  M0JSW [ Sat Apr 27, 2019 9:41 am ]
Post subject:  Re: ANOTHER ANTENNA IN THE BUILDING STAGES

Inductance coil calculator...
http://www.66pacific.com/calculators/co ... lator.aspx

Really useful site.

Author:  M3FEH [ Thu May 09, 2019 1:09 pm ]
Post subject:  Re: ANOTHER ANTENNA IN THE BUILDING STAGES

YET TOO ON AIRED TESTED :good:

to wet windy mess around today all being well tomorrow get this puppy airborne :yahoo:

Attachments:
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SAM_0452__1557405682_38765.jpg [ 39.62 KiB | Viewed 534 times ]

Author:  G6CSL [ Thu May 09, 2019 1:16 pm ]
Post subject:  Re: ANOTHER ANTENNA IN THE BUILDING STAGES

Leads me to a question:
Are these supposed to be 'loading coils', or traps?

Author:  M3FEH [ Wed Jun 19, 2019 12:08 pm ]
Post subject:  Re: ANOTHER ANTENNA IN THE BUILDING STAGES

LOADING NOT TRAPS :hello:

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