Most commented posts
- Build your own Hytera cable — 36 comments
- Icom IC-9700 frequency modification — 15 comments
- Icom IC-9700 Power overshoot — 15 comments
- Icom IC-9700 and WSJT-X — 14 comments
- Hytera MD785(G) noise modification — 13 comments
Author's posts
Nov 06 2015
1st during CQ-WW-DX SSB?
The raw scores from last months CQ-WW-DX SSB-contest are availlable. Tough I was operator at PI4AMF I also spend some hours making QSO’s from home. In total 200, QRP-assisted. Seems to be enough to make it till the 1st place in the Netherlands if you rely on the RAW scores (search for PH4X).
Nov 01 2015
Tropo on VHF
No. The map below is not the map with the route asilum seekers are taking from Syria towards rich country in Western Europe. It’s a real-time map showing tropo ducts on VHF. This data is bases on APRS stations transmitting there GPS-position on 144.800 MHz. You should save it on your bookmarks is active on VHF …
Oct 29 2015
Switching to vertical: First results
A few months back I switched from a magnetic loop antenna to a vertical one. There were two main reasons to do so. The first one is the ability to be able to remotely tune the antenna. With the I3VHF-loop I wasn’t able to. The second reason was to have support for the 80 (and soon …
Sep 15 2015
Playing with the DV4mini
The last post has been a while now. I was busy preparing the annual Balloonfoxhunt and helping Mischa (PA1OKZ) out with expanding the PI2NOS repeater system. Last week a package arrived from Hamshop, the distributor for the DV4mini USB stick in the Netherlands and Belgium. Time to start playing around… What is the DV4mini The …
Apr 29 2015
Half way DXCC-Challenge
Today I noticed I’m half way the DXCC-challenge with 500 band-points. Now that I have access to the 80-meter and (limited) 160-meter band, I hope to achieve 50 band-points on these together before next year. Meanwhile, a worked-indicator in the Logbook shows me new countries per band. I’m still very limited with my antenne set-up (Magnetic …
Apr 20 2015
Building Inverted-L
I’m busy building an inverted L antenna. Going about 10 meters up and 10 meters horizontal. This gives me the possibility to work on the 80-meter and 160-meter band, using a CG-3000 tuner. I’m currently using about 2x 12 meters of wire as counterpose. This will be a bit more in the near future, but …
Apr 13 2015
MLA-T from the inside
Some pictures from the MLA-T Magnetic Loop Antenna. You can see the stepper motor (with 1:600 delay), the feedlines from the N (Yes, N, not PL) connectors and the extension capacitor with shunt for operations on the 160-meter band.
Apr 11 2015
New antenna for PI6ATS
PI6ATS, a locat ATV repeater, has a new VHF-antenne. The operators used an old indoor horizontal loop / halo antenna for audio reception on 144.7625 MHz. This wasn’t the best situation, since many people had a way stronger signal on 13cm then on VHF, if the repeater could receive a signal (1750 HZ tone) at …
Apr 11 2015
Testing the MLA-T
After cleaning the garage yesterday, I found the – after one year still boxed – MLA-T Magnetic Loop Antenna. Hope to have time this weekend to test things out. First thing to do is find a good point to fix the coupling loop, since this model has no gamma match like mentioned on the Wimo …
Feb 22 2015
Hamnet.nl website
Since yesterday, hamnet.nl is live. This website shows the building activities of a Dutch HAMNET.
Jan 17 2015
1A0C confirmed via LoTW
Most European DXCC’s are in. During the Christmas holiday I managed to work 1A0C, a new one for me. Today I’ve noticed the QSO was confirmed via LoTW. Big thanks to the operators for activate this not-so-common DXCC.
Dec 31 2014
Building first HAMNET link
Yesterday, Mischa (PA1OKZ) and I went to the tower in Hilversum to do some maintenance on PI2NOS. We took time to mount the first HAMNET-dish directing to PI1AMS / PI1RYS in Amsterdam-West (25km). The dish is located indoor behind a window about 110 meter HAAT. The Amsterdam site will be 55 meter HAAT. Line of …
Dec 08 2014
HAMNET hardware is in
Last week I’ve received the first hardware to do some comparisons between several wireless links we’re going to roll out in 2015 to create a HAMNET-backbone in the Netherlands. For testing I’ve ordered a Ubiquiti Nanobeam M5 with 40mm dish (25 dBi) and a Mikrotik SXT Lite5 set. Both operate on 5 GHz only and …
Dec 08 2014
Moving over ampr.org IP-space
Last week some Dutch hams (PA1OKZ, PA4TW, PE1CHL, PE1RJV and me, PH4X) moved over the 44.137.0.0/16 legacy IP-space to a gateway in Amsterdam, the Netherlands. Formerly announces by the University of San Diego in California, ping-times were becoming problematic since more and more repeaters with real-time applications used this tunnel. Moving over the IP-space from San Diego …
Sep 23 2014
RSSI value on MotoTRBO
After the Hytera ‘hack’ to show the RSSI value, there is also a possibility to do this on Motorola MotoTRBO equipment. It’s quite easy. Press the left arrow 3 times followed by pressing the right arrow three times. That’s it.
