OE1IFM's blog

In April 2010 a friend of mine took one of my beacons to 5X7 in his luggage on a business trip. In Masaka he handed it over to Jack, 5X7JD. He run the beacon from April '10 until August when heavy storms broke the power line to his building and the antenna.
Shortly after that Jack had to leave Uganda and the beacon remained there powered off.
Two months ago he had a chance to return for a short visit and took the beacon with him to Florida. From there it arrived by mail last week.

BeaconTNG does it's first transmits! - Check www.oe1ifm.at

Today I got to a point in software development, where I could TX my first WSPR sequences on 14 and 10MHz.
The framework is more or less ready, a lot of cosmetics left, but all building blocks work just fine.
The most impressive facts:
Frequency accuracy : < 0,02Hz
Time accuracy : < 10ms
Time and frequency base : Navsync CW-25TIM
Power consumption in sleep mode : < 10mW
Frequency range : 1MHz - 55MHz
Power Range : 10dBm - 40dBm
Number of filters : 8
Log file memory : 1MB
Processor : PIC 18F87J60
Interfaces : serial terminal, Ethernet (Telnet), 3x16LCD display
I/O ports : 8 opto isolated digital outputs (eg for antenna relays, power or temp management)
2 opto isolated digital inputs (eg external wake up or shut down)
10MHz GPDSO reference out

Vienna, April 2nd, 2010

Six months after bringing V53ARC online, the second WSPR beacon in Africa got into service. 5X7JD went online today. The beacon is hosted by Jack, 5X7JD who is located in Masaka, Uganda.
Jack Dunigan, a US citizen, is permanently located in Uganda working for AIDCHILD, an organization with homes, clinics, and academies for orphans who are abandoned and living with AIDS. Visit www.aidchild.org, donations are very welcome.

Same as the Namibia system, the beacon was developed and funded by Gernot Frauscher, OE1IFM. Visit www.oe1ifm.at to find out more about the beacon project. The system has 1W output and cycles through 80,40,30,20,17,15,12 and 10m, so one can hear the WSPR signal returning every 16 minutes. Antenna is an HyGain Av 18VS multi-band vertical. The beacon hardware is an embedded system based on a PIC 18F2455 MCU, an Analog AD9851 DDS chip and a MOSFET PA with selectable filters. Time and location information are derived from an attached GPS receiver. This beacons will be available as a kit soon and we are looking for hosts in interesting locations.

After successfully deploying my first system as V53ARC in October, I will have my second beacon system running in two weeks from now.
Jack, 5X7JD, agreed to host a WSPR beacon system at his location on Masaka, Uganda.
Equipment was shipped today and is expected to arrive on March 5th.

As V53ARC, the 5X system will TX with 1W and cover the bands from 80m to 10m, so the TX interval will be 16min or 12,5%

I will post updates here, once we get the beacon up and running.

check also: www.oe1ifm.at

Thanks to everyone! I just got back from my sailing trip and checked the database: More than 2.500 enties on 80, 40, 30, 20, 17, 15 and even some on 12m within 6 days! No spots on 10m though - obviously the piece of wire I used as an antenna didn't work on 10m at all. Among the spots are some really nice one's:
2009-09-06 16:08 OE1IFM 7.040118 -22 0 JN65 1 VK6POP OF88bd 13432 106
2009-09-09 20:58 OE1IFM 14.097125 -18 1 JN65 1 WB5NMZ EM62vi 8152 299

I will be on a sailing trip from Sept. 5th to Sept. 12th cruising the northern Adriatic. My latest WSPR beacon will be active all week on 80m to 10m with 1W into a piece of wire. As WSPR does not support pre- or suffixes to the call sign, the beacon will be operated as OE1IFM. Most of the time the correct call will be IK3/OE1IFM. For short periodes OE1IFM/MM will be appropriate when we cross from Italy to Croatia. There 9A/OE1IFM will be the correct call. I will try to announce the actual correct call on the WSPR homepage.

In close cooperation between the DAGOE Foundation, Mercy Ships and 5 Dutch radio amateurs, a new DX-pedition is on its way.

If everything goes according to plan the team foresees a visit to Benin from October 7th until October 30th.

The team expects to be on air from October 10th-27th and will also participate in the CQWW SSB 2009.

I am in contact with the DX-pedition and they will take one of my beacons to Benin.
So if it works out TY1MS will be active in WSPR!

I have designed and built a versatile WSPR beacon that works on 160m to 6m with up to 15W.
It derives time and location information from a GPS mouse and creates WSPR data locally without the need of a PC.
It has a LPF switch module and a attenuator switch module. It can run multiple DDS/PA modules concurrently.
Initial config is done with a Windows utility over USB. Details on the project are available at http://www.oe1ifm.at

Have a look. I would be happy about comments

73, Gernot, OE1IFM