Antennas – xmw.de

I have a collection of bought and DIY’d antennas

Transmit Antennas

VHF/UHF/SHF

Diamond D-190 discone for 70cm upwards with 2m whip
- TX possible on 2m, 70cm.
- RX hampered by bad RG58 cables with PL connectors.
Ground plane 2m/70cm build from BNC socket and solid wire
Ground plane 2m/70cm build from BNC socket copper plate and copper welding rods
LogPer 2m/70cm design by OE3MZC (build instructions) (defunct)
- hard to adjust/tune
Yagi 2m design by DK7ZB
- used for contesting in 2022, works great. 70cm too.
Yagi 70cm design by DK7ZB (incomplete)
2 POTY feeds for 2.4GHz QO-100
wlan grid 90cm for 2.4GHz 90cm
wlan yagi for 2.4GHz
Arrow Antenna 146/437-10BP w/Duplexer (to be tesed)

HF

I prefer resonant antennas, as my radio do not come with antenna tuners build in. I possess a MFJ Deluxe Versatuner 2, but that’s tedious to operate in the field

There is a partially assembled AT-100 kit, but that’s for another day.

I tend to use 1:1 (choke) baluns at the feed points and and for noise suppression at the transeiver.

ZS6BKW

Resonant multiband designed by ZS6BKW, derived from GR5V.

13.75m dipol wires, 12.22m + x Wireman CQ-553 as depiced in this build instruction by DL9NBJ.

EFHW

end-fed half wave dipole. Basically un-un with a 3 to 21/24 turn ratio resulting in a 1:49 / 1:64 impedance transformation. Optional counter-poise connected to the balkony or portable, a run of 6m coax to the transceiver.