[CQ-Contest] broadbanding 80m delta loop
Bob, W3IDT
w3idt at comcast.net
Mon Jul 29 16:03:50 EDT 2019
>> I remember an old article by L B Cebik . . .
Newest version, cites Cebik's (w4rnl, sk) work:
http://ncjweb.com/features/QEX-Leeson-Broadband-Dipole.pdf
(QEX November/December 2018)
Bob, w3idt
.............................
. Robert F. Teitel, W3IDT .
. .
. W3IDT at arrl.net .
. W3IDT at comcast.net .
.............................
On 7/29/2019 9:11 AM, Tom Hellem wrote:
> Darrell:
> I just ran an old one I had in EZnec.
> The 2:1 SWR bandwidth is about 280 Khz.
>
> I remember an old article by L B Cebik that described a way you can
> broadband an
> 80 meter antenna simply by using a couple specific lengths in series of 75
> ohm and
> 50 ohm feedline. If you are interested I can try to dig it up and send you
> a copy.
>
> Tom
> K0SN
>
> On Sun, Jul 28, 2019 at 7:58 PM AB2E Darrell <ab2e at hotmail.com> wrote:
>
>> Hello all,
>> Hope it's oK to ask this on this forum.
>> Trying to figure out if it's worthwhile to make one delta loop that will
>> cover most of CW and lower part of SSB.
>> Does anyone have up a full wave delta loop for 75/80M?
>> If so, what are your 2:1 SWR band edges?
>> I was thinking if I cut it to resonate around 3.6 it might be wide enough
>> for both.
>> If not I'll just go with 2 separate antennas.
>>
>> Thanks and 73,
>> Darrell AB2E
>>
>>
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