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 Homebrew 2m/70cm Dipole Antenna

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DerekF
Contributor
Contributor



Call Sign : 26-CT-4631....M7OGB
Posts : 77
Times Thanked : 5
Join date : 2022-09-09
QTH or Location : Middlesbrough, North Yorkshire
Equipment Used : Icom F25SR, Intaride IR-803, Baofeng UV-5R, Anytone AT-778UV
Age : 70

Homebrew 2m/70cm Dipole Antenna Empty
PostSubject: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeSun Mar 19, 2023 9:35 pm

Following on from my PMR446 Antenna I decided to try my hand at constructing a 2m/70cm Vertical Dipole Antenna.
3mm stainless steel rod was used for the antenna arms and various other bits and pieces I had laying around in my shed were used to complete the build.
I still need to construct a better designed mast but the one I cobbled together worked fine to test the antenna.
SWR for 2m calling frequency was a near perfect 1:1
SWR for 70cm calling frequency and PMR446 approx 1:1.5 which I believe is acceptable.
Homebrew 2m/70cm Dipole Antenna 2m70cm10
Homebrew 2m/70cm Dipole Antenna 2m70cm11
Homebrew 2m/70cm Dipole Antenna 2m70cm12


Last edited by DerekF on Sun Mar 19, 2023 9:41 pm; edited 1 time in total

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DerekF
Contributor
Contributor



Call Sign : 26-CT-4631....M7OGB
Posts : 77
Times Thanked : 5
Join date : 2022-09-09
QTH or Location : Middlesbrough, North Yorkshire
Equipment Used : Icom F25SR, Intaride IR-803, Baofeng UV-5R, Anytone AT-778UV
Age : 70

Homebrew 2m/70cm Dipole Antenna Empty
PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeSun Mar 19, 2023 9:39 pm

Homebrew 2m/70cm Dipole Antenna 2m70cm13
Homebrew 2m/70cm Dipole Antenna 2m_cal10
Homebrew 2m/70cm Dipole Antenna 70cm_c10

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Victor
CT Directors
CT Directors
Victor


Call Sign : 26-CT-3228 / M7VIC
Posts : 5296
Times Thanked : 339
Join date : 2019-11-10
QTH or Location : Bedford
Equipment Used : Various

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PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeMon Mar 20, 2023 6:27 am

Looking good Derek. Homebrew 2m/70cm Dipole Antenna 1f44d 

Once you start building antennas there's no stopping and they'll grow in number until you have quite a collection of them! Smile


Thanks for posting.


All the best,
Victor

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https://www.qrz.com/db/M7VIC
HomerBB
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Posts : 1
Times Thanked : 0
Join date : 2022-11-11
QTH or Location : Rogers, Arkansas USA
Equipment Used : IC-746

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PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeTue Mar 28, 2023 2:11 pm

Looks great!
I've made a few of these. Work great. I also made a fan dipole by adding a 3rd dipole for 220 Mhz. It was fun to do and use.

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DerekF
Contributor
Contributor



Call Sign : 26-CT-4631....M7OGB
Posts : 77
Times Thanked : 5
Join date : 2022-09-09
QTH or Location : Middlesbrough, North Yorkshire
Equipment Used : Icom F25SR, Intaride IR-803, Baofeng UV-5R, Anytone AT-778UV
Age : 70

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PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeTue Mar 28, 2023 2:18 pm

Thank you, I've never heard of or seen a fan dipole but I'll now try and find one on using Google or Youtube.

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Ace
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Call Sign : 26-CT-4203 - G0ACE
Posts : 14
Times Thanked : 1
Join date : 2021-07-24
QTH or Location : Reading, Berkshire
Equipment Used : Mustang CB81, Tristar747, Belcom LS102

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PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeTue Mar 28, 2023 3:51 pm

Looks good and I'm sure it tested well, especially when you have it on it's new mast which I expect will be a little higher. Smile 

I have a lot of antennas to build and have been waiting for an improvement in the weather. Now the clocks have changed, we have lighter evenings. So when it stops raining I'll be throwing lots of wire and aluminium skywards.

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RadioWavez
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New Member



Call Sign : 2-CT-210
Posts : 44
Times Thanked : 7
Join date : 2022-01-01
QTH or Location : Lexington, Kentucky
Equipment Used : Alinco DX-SR8

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PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeTue Mar 28, 2023 6:17 pm

Looks like a fun build. Getting a dual band antennas in a compact design looks worth the effort. Thanks for sharing the pics.  Wink

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DerekF
Contributor
Contributor



Call Sign : 26-CT-4631....M7OGB
Posts : 77
Times Thanked : 5
Join date : 2022-09-09
QTH or Location : Middlesbrough, North Yorkshire
Equipment Used : Icom F25SR, Intaride IR-803, Baofeng UV-5R, Anytone AT-778UV
Age : 70

Homebrew 2m/70cm Dipole Antenna Empty
PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeTue Mar 28, 2023 11:03 pm

I enjoyed the build process and hoped by sharing my photos it would inspire others to have a go at building their own antennas.

Yes Ace, my intention is to mount it a little higher - let's hope the weather improves so we can all "get outside and play" Very Happy

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Ace
New Member
New Member



Call Sign : 26-CT-4203 - G0ACE
Posts : 14
Times Thanked : 1
Join date : 2021-07-24
QTH or Location : Reading, Berkshire
Equipment Used : Mustang CB81, Tristar747, Belcom LS102

Homebrew 2m/70cm Dipole Antenna Empty
PostSubject: Re: Homebrew 2m/70cm Dipole Antenna   Homebrew 2m/70cm Dipole Antenna Icon_minitimeTue Mar 28, 2023 11:39 pm

DerekF wrote:
...
 - let's hope the weather improves so we can all "get outside and play" Very Happy
Indeed, it's been a long, wet Winter and time we had some antenna fun and helped the wiggly waves escape to DX lands. Arrow

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