Author - M0YOM

The Shack

11th September 2009
M0YOM
M0XXT Archive
Add comment

Below is a picture of our current shack.

We are in the process of moving to a larger shack within the same building, this also involves a major re-design of the station. Once completed we will have state of the art M2/MM station. The stations development and build will be fully documented on m0xxt.co.uk so check back often for updates.

We also have use of a large main hall to which the shack is attached, this provides an excellent area for working on everything from antenna’s to cable runs.

For more details of the systems please select the links in the sub menu

Current Equipment

Yaesu FT-1000MP x 2
Yaesu FT-2000
Elecraft K3
ACOM 2000A x 2

Multiple Very Large Horizontal Delta Loops
40m Parasitic 3 Element vertical arrays
Tri-Bander
Top Band Dipole

Contest Results

9th September 2009
M0YOM
M0XXT Archive
Add comment

Listed below are the M0XXT/M9X Contest results

 

2010

Contest Category Result
CQWW SSB Multi-2 TBA
IOTA Fixed Multi-Single Mixed 24h High Power 5th in EU-005
CQWPX CW Single-Op High All Bands TBA
CQWPX SSB Multi-2 AB Assisted TBA
RSGB SSB Field Day Open Section TBA
DARC SSB Field Day Outside DL, Multi Op HP Assisted 4th
80m Irish Counties Contest Outside EI TBA

 

2009

Contest Category Result
CQWW SSB Multi Two 1st in G
RSGB SSB Field Day Open Section 3rd
VHF Field Day Mix & Match 12th
RSGB AFS N/A 14th
CQWPX SSB Multi-Single AB Assisted 2nd in G
DARC SSB Field Day Outside DL, Multi Op HP Assisted 3rd
RSGB Club Calls N/A 18th
RSGB 80m Club Championships N/A 68th
80m Irish Counties Contest (M0MCX Callsign used) Outside EI 1st

 

2008

Contest Category Result
RSGB SSB Field Day Open Section 3rd
VHF Field Day Restricted Section 7th
RSGB AFS N/A 45th
RSGB Club Calls N/A 7th
CQWW SSB Multi-Single AB Assisted 4th in G
DARC SSB Field Day Outside DL, Multi Op HP Assisted 3rd

 

2007

Contest Category Result
RSGB SSB Field Day Open Section 5th

 

 

 

Band Pass Filter Update

24th July 2009
M0YOM
Amateur Radio, Projects
1 Comment

Construction of the band pass filters continued today, progress has been slow recently as i needed some more parts (M3 10mm bolts and some M3 nuts), I also had the problem of finding some appropriate coax to use for the internal connections. As luck would have it i have a couple of barely working Wifi antennas that have some nice long leads of very thin coax, it turns out that the coax is RG-174, perfect for my short internal connections on the BPF’s.

Read More

Read More

Large 7-Segment Displays

14th July 2009
M0YOM
Amateur Radio, Projects
Add comment

My large 7 segment displays have arrived, these are 2.24″ tall and will be eventually be used in couple of large band readouts for the M0XXT contest station.

They are yellow and of the common anode variety. Should look pretty nice once the project is finished. If anyone knows of a suitable enclosure to hold 3 of these plus associated circuitry please let me know.

High Power Stub Filters

10th July 2009
M0YOM
Amateur Radio, Projects
Add comment

For CQ WPX this year i built two sets of high power coax stub filters to allow the M0XXT team to enter as Multi-Single.

These stubs performed reasonably, although there are some improvements i plan on making for the final design to be used in conjunction with the Band Pass Filters already under construction.

Expect a full article on the coax filters soon.

(P.S. Fitting over 80 PL-259’s is not fun)

5B4AGN Band Pass Filters – Construction Started

4th May 2009
M0YOM
Amateur Radio, Projects
1 Comment

I started construction of the first of two automatic band pass filters tonight. These will be used in the M0XXT contest station in conjunction with high power stub filters to allow us to run a proper Multi-Single or Multi-Two station.

These are similar to the Dunestar 600 devices, however they use the W3NQN filter design so the performance is superior to the Dunestar’s. They were designed by Bob Henderson 5B4AGN, who had some professional boards and cases made up.

They employ a very clever motherboard system, so the filters can be removed/replaced easily.

The photo is of the first, nearly complete motherboard

M0XXT CQ WPX 2009

31st March 2009
M0YOM
M0XXT Archive
Add comment

My thanks to Lee (G0MTN) James (M3YOM) Terry (G4MKP) and Aidan (M6TTT, Scout) for getting our new station on the air for a first-time-out on WPX.

We also roped in Chris and Dan, two new foundation student contest Scouts for the spotting on the Mult Station. Barry M0DGQ also gets a big thank you for supplying hundreds of meters of 75 ohm coax for James’s stub-filter project and Charles at Moonraker for sponsoring the large number of required PL259 and T pieces.

We ran a pair of very old Yaesu FT1000MPs (non-Inrad versions) which were completely swamped by QRM to a number of interesting antennas including our new super all-band Mega-Loop (horizontal delta loop at 85 feet) delivering about 12dbi on 20m to US at 10 degrees elevation (more on higher bands). However, it also delivers 10dbi to EU and most of Russia at a very low angle, hence QRM flooding. James’s stub filter project worked but still needs some tweaking. Thanks to K1TTT for helping James get his head around this. Next time, James will have finished Bob Henderson’s filters as well which should sort out any final interference between bands. Poor James soldered nearly 100 PL259s last week. Don’t worry James, fingers should re-grow by CQWW!

Read More

Read More

Band Pass Filters Update

10th March 2009
M0YOM
Amateur Radio, Projects
Add comment

Progress on the band pass filters is progressing nicely, the second motherboard is almost complete and winding of the coils for the first set of filters has begun. Hopefully I should be starting on tuning the filters shortly.

Here is a quick pic of the L1 winding for 40m