I got my hands on a set of 2nd hand solar-panels. most of them are rotten. But i found one that works. so a “Sun”day afternoon of toying around gave me some ideas on how to move on. altho the glass is shattered it still works fine.
Field kit backpack.
I wanted a field backpack for ages. Yesterday i figured i could reuse the sem35 pack. So i started drawing to see how it would all fit in. Stil in the drawing stage. But here is a glimps. It will fit a batterij 12v 5 or 7amps. The ft-817nd, LDG Z817 and my wire antennes. …
mWatt meter -72db tot 18 db
As you can see on my site I’m building a lot of little tools that can help me out in the shack. While browsing AliExpress i ran in to an nice little power measuring module based on the AD8307. I decided to buy one and see if it would do the job. After a few…
Lightning Receiver
In the januari 2017 number of Razzies there was an article about a lightning receiver. They started with an basic receiver, but later changed to a pre-build module with more capabilities. My interest wen’t to the basic receiver, simply because, like many of my little projects, its all made up around component that many of us…
13.8Volts 47Amp PSU
The idea I have some old server power supplies laying around with the intention to convert them in to a good power source for my HAM stuff. The base will be and DSP-600 from HP, capable of producing 47Amps on 12v. With some tweaking it can produce 13.8V, Also it has a 5V. Always handy…
12V 10Amp 19″ power supply
I have had the parts laying around for a while and with the arrival of the 2U high 19 inch chassis it was time to put it all together. A 12V (13,4 actually) power supply for in my rack. Some specs: DV voltage : 13,4 Volts ( i can’t up the voltage more on the…
Carbon Microphone conversion
Sinds I have a SEM-35 I have noticed that the mic really sucks (excuse me for the langue). But these carbon microphones have a tendency to become clothed. It come with age and moisture. So after searching the web i found a side that has nice description how to convert it to a electret microphone. The site is…
DRA818 – Weekend Radio
DRA818 module comes in two versions: DRA818V, that covers freq. from 134 to 174 MHz and DRA818U that covers freq. from 400 to 470 MHz. I have the VHF version. At the present I have programmed it to have: 1. simplex channels with 12.5 kHz step 2. repeater channels with 12.5 kHz step (subtones included)…
QRSS – Ultimate3 kit
Going QRSS – Ultimate3 kit. I’m on the waiting list due to the enormous demand….. that means only 1 thing… it’s a really good kit.. Will have the 10, 20 and 40M LPF and relay board. The powerboard for the wspr beacon and qrss transmitter. Now on are 5volt and 9volt. Will add 3,3volt later…
VK5JST Aerial Analyser
This project was published in the May 2005 issue of the Australian magazine “Amateur Radio”, and has been designed using parts which are very readily available (see the circuit and parts list). There is little point in supplying a kit of parts to amateurs who have been around a while – most will be in…
Ham Nieuws- DXpeditions
- Contest Calendar
- Phone Fray0230Z-0300Z, Jun 20
- CWops Mini-CWT Test1300Z-1400Z, Jun 20 and 1900Z-2000Z, Jun 20 and 0300Z-0400Z, Jun 21
- NAQCC CW Sprint0030Z-0230Z, Jun 21
- NCCC RTTY Sprint0145Z-0215Z, Jun 22
- NCCC Sprint0230Z-0300Z, Jun 22
- UFT QRP Contest0600Z-0900Z, Jun 23 and 1400Z-1700Z, Jun 23
- Ukrainian DX DIGI Contest1200Z, Jun 23 to 1200Z, Jun 24
- His Maj. King of Spain Contest, SSB1200Z, Jun 23 to 1200Z, Jun 24
- ARRL Field Day1800Z, Jun 23 to 2100Z, Jun 24
- Phone Fray