DK5YA - JN49nx - 4x9 M-square

Who is DK5YA?
 

www.vhfdx.de
www.dk5ya.de
www.spessartwetter.de
www.solweb.de

OP: Udo - WW LOCATOR JN49nx

I'm a VHF-enthusiast since 1964. At the age of 6 I was seriously searching for the miracles of broadcast inside my parents brand new HiFi system using a screwdriver and the big solder gun I found at my fathers shack desk. Nice surprise for whole family: neither small green guys from Mars inside the radio nor sound out of the speaker anymore...

In 1980 I got my first license, DG4NAE, a new solder and few screwdrivers also...of course. In 1983 I became DH8NAA. Since 15. May 1998 I am DK5YA. In August 2006 we went to a new QTH, still in JN49nx right on the border to JO40na, out of the town on the countryside. Now I'm at 400 meters a.s.l. with a clear view and a superb take-off all around.
To see a panoramic 360 deg. view of my new QTH and take-off click here.

Radio is my business, I'm a Broadcast-Journalist at Hessischer Rundfunk in Frankfurt/M., part of the Broadcast Net ARD [Radio and TV] in Germany. I'm also member of DF0HR, Hessischer Rundfunk Clubstation.

Recent rig [summer 2018]:
#1 ELECRAFT K3 (S) with DB6NT transverters and homebrew adaptive dual RX system for 144MHz, LDMOS SSPA
#2 ELECRAFT K3 (S) for 23cm with Transverter by SG-Labs, 4mtr. with Transverter by HA1YA and HF. Homebrew LDMOS amp with BLF188XR HF/50MHz, LDMOS amp (MRF13750) homebrew >600W on 23cm

YAESU FT817 backup for transverters

SDR RSP2pro [MAP65 et al]

Several spare VHF/UHF rigs

All LNA's by HA8ET (144/70 MHz) and VHF-Design (23cm)

Antennas are
5 el. Yagi I0JXX on 50 MHz
6 el. Yagi DK7ZB on 70 MHz
4 times 22 el. X-Pol yagis for 144 EME MHz by . Adaptive RX and continous circular TX. See the scheme here.
3 meter mesh dish on 1296 MHz with septum feed by rf-hamdesign
90cm dish for 10 GHz (QRT)
45 cm dish on 24 GHz (not in the air at present)
Wires and verticals for shortwave
Towers:
Two times Flammex Pull 12 mtr. towers made by Frick.
dk5ya@dk5ya.de.
 

4 times 9 element M² 4 times 9 element M²
Old 4 times 9 el. Mē @ 12 mtrs. from 1998 until 2014 Old 4 times 9 el. M² @ 12 mtrs. from 1998 until 2014 Old 4 times 9 el. M² @ 12 mtrs. from 1998 until 2014 pointing east
Click images below to enlarge!
4 times 18 el. XPol by DF7KF @ 12 mtrs. from April 2014 , sold 2016 New 4 times 22 el. XPol by M² @ 12 mtrs. from September 2016 New 4 times 22 el. XPol by M² @ 12 mtrs. from September 2016
LDMOS 144 MHz SSPA SV9/DK5YA June 1998
144 PA with 4x MRFE6VP61K25H LDMOS SV9/DK5YA June 1998 10 GHz transverter boxed [enlarge]
Front: 50/432/10GHz/ Rear: old 144 MHz 10 GHz dish/50 MHz 5el./432 MHz 25el. Both towers@12 mtrs. high (2008)
Left 144 MHz, right 50/432/10 GHz
in 2008
Antennas beaming north (2008) Tower #1 erected 2006/Tower #2 in 2008
3m mesh dish 23cm 144 and 23
3 mtr. mesh dish 23cm Mesh dish and 4x22Xpols 90 cm 10 GHz dish - now QRT