#440MHz - Twitter Hashtag

18 days ago

435 MHz Skew Planar antenna Produces an efficient sky view radiation pattern. Full antenna details: https://t.co/iA88EayIS7 #HamRadio #432MHz #440MHz #70cmband #fpvantenna

vk6ysf97230's tweet photo. 435 MHz Skew Planar antenna
Produces an efficient sky view radiation pattern.

Full antenna details: https://t.co/iA88EayIS7

#HamRadio #432MHz #440MHz #70cmband #fpvantenna https://t.co/lnFvDKsCDl

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Metro Atlanta Ham Radio! @K4KHOMetroATL

12 months ago

Working on programming channels for #taxsat #aprs #440mhz #hamradio ! This is going to be epic!!!!

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Peter Miles (VK6YSF) @vk6ysf97230

almost 2 years ago

435 MHz 5 Petal Clover Leaf Antenna Home brew 5 element omnidirectional horizontally polarised antenna for 435 MHz. Better than 2:1 SWR from 425 MHz to 445 MHz Details of construction and testing: https://t.co/djBBfY6ur3 #HamRadio #432mhz #440MHz #antenna

vk6ysf97230's tweet photo. 435 MHz 5 Petal Clover Leaf Antenna
Home brew 5 element omnidirectional horizontally polarised antenna for 435 MHz.

Better than 2:1 SWR from 425 MHz to 445 MHz

Details of construction and testing: https://t.co/djBBfY6ur3

#HamRadio #432mhz #440MHz #antenna https://t.co/IS5faIGKbS

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Peter Miles (VK6YSF) @vk6ysf97230

almost 2 years ago

Skew Planar Antenna. Spent the day in workshop completing my new Skew Planar Antenna for the 70cm band. SWR: Better that 1.6:1 across the 70cm band and 1.07:1 at 440 MHz Impeadence at 440 MHz 48.8 +3.1j 👍 #HamRadio #432MHz #440MHz #antenna

vk6ysf97230's tweet photo. Skew Planar Antenna.

Spent the day in workshop completing my new Skew Planar Antenna for the 70cm band.

SWR: Better that 1.6:1 across the 70cm band and 1.07:1 at 440 MHz
Impeadence at 440 MHz 48.8 +3.1j 👍

#HamRadio #432MHz #440MHz #antenna https://t.co/hel3Ta2o1q

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GiamMa-based researchers SDR R&D IoT @giammaiot2

about 3 years ago

UHF Transmit Video By dellycem Via Reddit https://t.co/aTWbw2j4ar FZ can replay back recorded UHF transmission :) Will try with external boosted 2W CC1101 soon. #SoftwareDefinedRadio #SDR #FlipperZero #UHF #440170KHz #440Mhz

giammaiot2's tweet photo. UHF Transmit

Video By dellycem
Via Reddit

https://t.co/aTWbw2j4ar

FZ can replay back recorded UHF transmission :) Will try with external boosted 2W CC1101 soon.

#SoftwareDefinedRadio #SDR
#FlipperZero
#UHF #440170KHz #440Mhz https://t.co/ghhav1sNGg

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Pedro Cabrera @PCabreraCamara

about 4 years ago

Os dejo a continuación los #análisis con el #NanoVNAv2 S-A-A-2 de 4 grandes #antenas #bibanda Vhf/Uhf: Nagoya 771 RH770 Diamond SRH36 Diamonf SRH519 En #Vhf se han analizado entre #144MHz y #146MHz, en #Uhf entre #430MHz y #440MHz, los dos con su #calibración correspondiente:

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James Hannibal (KH2SR) @QuirkyQRP

almost 6 years ago

Give your HT’s effective power output a little boost with a QuirkyQRP ZipTenna Multi-Band counterpoise lanyard! https://t.co/T0KPVLcuXF #ziptenna #quirkyqrp #hamradio #amateurradio #vhf #uhf #2mband #70cmband #144mhz #440mhz #weatherband #EDC #marinebandradio #airbandradio

QuirkyQRP's tweet photo. Give your HT’s effective power output a little boost with a QuirkyQRP ZipTenna Multi-Band counterpoise lanyard!

https://t.co/T0KPVLcuXF

#ziptenna #quirkyqrp #hamradio #amateurradio #vhf #uhf #2mband #70cmband #144mhz #440mhz #weatherband #EDC #marinebandradio #airbandradio https://t.co/U1O9LjFYW8

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(B)ayside (A)mateur (R)adio (F)raternity-WA6BLC @WA6BLC

almost 8 years ago

Fantastic view @PoliceCreek! You talked us into it! We’ll be on the #hamradio #UHF #440mhz or #VHF #2meter talk-in #frequency if anybody at the dept is a #RadioAmateur. Our radio club was PD centric and mostly retired #LEO now or eccentric. 🤣👮🏻‍♀️👮🏻‍♂️