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Photos of Mini Wire Antenna Sample Build

Adam Rong
 

Folks,

See this page in Chinese:
https://mp.weixin.qq.com/s/hQLW6Trv837d5q2eXay3aQ

The first photo is for 49:1 UNUN for EFHW, and the second photo is for 1:1 BALUN for Dipole. It will be added to the option drop down list of D4D in a week or two. Now I am still waiting for parts and massive production PCB.

The PCB design is inspired by nice designs from QRPGUYS. My design part is that the same PCB can be used for both EFHW and Dipole.

Thanks,
Adam

Adam Rong
 

Folks,

I will receive all the parts this weekend and will ship a few kits. Please place email order at 12 USD each plus 5 USD each time for shipping.

The PCB will be compatible for these applications using a toroid FT-63-43:
BALUN 1:1
BALUN 4:1
UNUN 49:1
UNUN 9:1

Thanks,
Adam

Adam Rong
 

Folks,

This is the formal version.
https://mp.weixin.qq.com/s/CyMkfWmNQ0g6Q_O4aKLNvA

Thanks,
Adam

Adam Rong
 

 

Folks,

The manual is being written. It takes a week or so.

Thanks,
Adam

Mini Wire Antenna

Kit Assembly Manual

 

Draft

CRKITS.COM

 

The Mini Wire Antenna can be used with D4D DSB Transceiver for FT8, HT-1A CW Transceiver and other QRP power level transceivers. It is tiny and light weight. You will need to supply the wire and coaxial cable by yourself since the shipping cost is high. The max OD for wire is 3mm, but it works great for thinner wire.

 

Applications

  • 49:1 or 64:1 UNUN for EFHW

  • 9:1 UNUN for Long Wire

  • 1:1 BALUN for Dipole

  • 4:1 BALUN or UNUN

  • and etc...

 

Part List

  • 1x BNC connector with washer and nut

  • 1x 100p capacitor

  • 1x Toroid Material -43 OD 16mm (Manufactured by Fair-Rite)

  • Enameled Wires

    • 60cm 0.7mm OD Red

    • 60cm 0.7mm OD Shining Golden

    • 60cm 0.7mm OD Dark Golden

  • 5x Cable Tie

  • 1x Main PCB

  • 2x Insulator PCB

fj.tragauer@...
 

Hi Adam,
Thanks I have received the Mini Antenna Kit. Please send more instructions how to build like in second photo for 1:1 BALUN for a Dipole for the 40m band. How many windings for each wire. What is the exact meaning  A - L, A' and B - G, B' and C - R, C' - B from the manual.

Best regards,
Fred

Adam Rong
 

Fred,

Sorry for the delay. Please refer to this diagram.
https://groups.io/g/crkits/photo/90325/0?p=Created,,,20,2,0,0

Thanks,
Adam

Adam Rong
 

And I just updated the Mini Wire Antenna manual to Draft 2 version.

Thanks,
Adam