It was thirty years ago today….

…. that I sat the RAE.

Monday 17th May, 1982.

In those days the examination was run by City And Guilds and consisted of two papers, the first one was Licensing conditions and Transmitter Interference and the second was Operating Practises, Procedures and Theory and one had to get at least PASS grade in both so that the Radio Amateur’s Certificate could be issued.  It was only on issue of that certificate that a licence would be given.

I was only 15 years old when I sat my RAE after nearly a years worth of evening classes at the East Herts College, Turnford.  I remember my dad used to drive me over and then go and see his brother in Enfield while I did the classes and then we’d go home and I’d have a late night before school the next day.  I tried to persuade my school to get a grant to pay for the classes and the exam but with no luck.

My RAE Exam Timetable for 17th May 1982

My RAE Exam Timetable for 17th May 1982

I really don’t remember too much about the exam itself, what I really remember is the nearly three months of waiting for the results – It was very different to how it is now with the exam paper being marked straight afterwards and the results being known straight away.  I’d love to get hold of a copy of the exam paper from May 1982 to have another look through it after all this time.  There are a load of old written papers available for download here but none since it switched to multiple choice.

I hadn’t realised it was thirty years ago until a couple of weeks back, I was looking through an old folder I keep all my important radio related stuff in and found the exam timetable which I’ve posted above (click for a larger version).  It doesn’t seem that long ago, it makes me feel quite old!

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Replacing my Cushcraft MA-5B with a G3TXQ Broadband Hexbeam

I’ve mentioned a couple of times recently that I’d ordered a replacement aerial and it was delivered on Friday.  I bought a G3TXQ designed Broadband Hexbeam, from Ant, MW0JXE.  Ant manufactures these on demand and so therefore there’s a waiting list, it took around six weeks from order to delivery but it was well worth the wait.  The quality of the product is superb, an absolute breeze to put together.

On Friday evening I unpackaged everything and finished off the assembly of the centre section along with putting all the spreaders together so that the time taken to get it all up on Saturday would be minimised.

I met with Colin, M1EAK and Chris, M6GSD at a local café on Saturday morning where we had an ‘aerial riggers breakfast’, effectively a fry-up washed down with mugs of coffee.

To start with, we lowered my Alimast and removed the MA-5B along with the existing stub mast.  The Hexbeam requires a scaffold pole sized mast and the stub I was using was a 2″ steel pole so therefore unsuitable.

Colin starting to remove the MA-5B from my mast

Colin starting to remove the MA-5B from my mast

We then stood the centre piece of the Hexbeam in a ground anchor (that I’ve previously used to fix a portable mast) and started building it.  All the spreaders were slotted in place and then fixed using the support cords.

The centre of the Hexbeam with all the spreaders in place

The centre of the Hexbeam with all the spreaders in place

Spreaders fixed in place and ready for the elements

Spreaders fixed in place and ready for the elements

Elements all in place and the balun and coax tail fitted

Elements all in place and the balun and coax tail fitted

Chris fixing the Broadband Hexbeam to the stubmast

Chris fixing the Broadband Hexbeam to the stubmast

With the Broadband Hexbeam fitted to the replacement stubmast all we had to do was raise it up into the sky.  Here’s how it looked against the overcast sky.

The newly erected Broadband Hexbeam

The newly erected Broadband Hexbeam

Fortunately the weather has cleared a bit since and I’ve been able to take a picture of it looking much nicer from the front of the house.

Broadband Hexbeam from the front of the house

Broadband Hexbeam from the front of the house

The total procedure of taking down the MA-5B and replacing it with the Hexbeam took less than two hours and I was all ready in time for the start of the VOLTA RTTY DX contest.  The Hexbeam also has much lower visual impact than the Cushcraft did, despite the fact that the Hex is physically larger.

One of the reasons for changing aerials was so I could benefit from the wider bandwidth on 20m so the first thing I did was to run the analyser over the new beam, here are the results.

G3TXQ Broadband Hexbeam VSWR on 20m

G3TXQ Broadband Hexbeam VSWR on 20m

G3TXQ Broadband Hexbeam VSWR on 17m

G3TXQ Broadband Hexbeam VSWR on 17m

G3TXQ Broadband Hexbeam VSWR on 15m

G3TXQ Broadband Hexbeam VSWR on 15m

G3TXQ Broadband Hexbeam VSWR on 12m

G3TXQ Broadband Hexbeam VSWR on 12m

G3TXQ Broadband Hexbeam VSWR on 10m

G3TXQ Broadband Hexbeam VSWR on 10m

G3TXQ Broadband Hexbeam VSWR on 6m

G3TXQ Broadband Hexbeam VSWR on 6m

Exactly what I wanted!  I can operate over the whole of all the six bands it covers without having to use an ATU and if I wish, I can also use the amplifier.  It’ll be interesting to have an external aerial for 6m for the first time.

HF conditions this weekend haven’t been great so I’ve not been able to check the aerial fully but everything appears to be working well.  Not including the couple of hundred QSOs I had in the aforementioned RTTY contest I’ve also worked Brazil, Somalia, Uruguay, Svalbard, Saudi Arabia, Greenland, Ecuador, Cuba, Mexico and Palestine.  Oh and I got my final slot with 7O6T, 10m CW!

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Working the 7O6T DXpedition to Socotra Island, Yemen

It was just over a week ago that I started seeing tweets and mentions on blog posts of an upcoming DXpedition to Socotra Island, Yemen.  My interest was piqued because I’d noticed Yemen when looking at the DXCC Most Wanted List at ClubLog.  I checked the list and noticed that Yemen is shown at number six on the list.

7O6T DXpedition to Socotra Island, Yemen

7O6T DXpedition to Socotra Island, Yemen

I did some more research and it seems that the last activation of Yemen was back in 2002 and the last time Socotra was activated was by John, G3UCQ in 1964/65.  You can read about his activation by clicking here.

This was clearly going to be a popular DXpedition and once I studied the map I quickly realised that it wasn’t going to be easy to work them.  There’s a huge wall of Europeans and specifically Italians between the UK and Yemen and breaking through that would be difficult.  This demonstrates what I mean…

Direct path between the UK and Socotra Island

Direct path between the UK and Socotra Island

It seems this trip was kept very quiet because news of it only appeared a day or so before they went live.

So come the first day of operation and the bands exploded!  I spent an hour calling on 15m CW with no luck and then tried 17m SSB but the operator was working really slowly and by numbers.  I gave up and went to bed instead.   The following evening I tried for a while and finally managed to work them on 20m CW.  Surprisingly I didn’t tweet about it but my post on a forum simply said “Worked about 45 minutes ago on 20m CW. I’d like some more slots but even if I don’t manage any, I’m happy with the one.”

Working new ones is exciting though.  A couple of evenings later I worked them again on 15m CW and the next day on 15m SSB.  Here’s a recording:

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This was becoming addictive, later the same day I managed a QSO on 12m CW then 17m SSB and 20m SSB!   The next day I worked them on 12m SSB and then 10m SSB.

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(I’m using a Heil Pro-Set Plus headset with the ‘DX’ element, it really removes all the bass in my voice)

Finally I finished up working them on 17m CW and that makes a total of nine slots, five on SSB and four on CW.  The online log courtesy of ClubLog shows all those QSOs confirmed.

Confirmed QSOs between G6NHU and 7O6T

Confirmed QSOs between G6NHU and 7O6T

Those who know me will be well aware that I’m not particularly good at CW.  I can just about manage a contest QSO so it’ll be quite a surprise to see that I’ve had four Morse contacts with 7O6T.  Here’s how I did it.  This is my QSO on 17m.

G6NHU working 7O6T on 17m CW

G6NHU working 7O6T on 17m CW

I largely treat CW as a data mode, especially at those speeds.  The operators on Socotra are regularly transmitting at over 40 wpm and without computer assistance, I’d have absolutely no chance of working them.  I use CwGet and CwType from DX soft.

What I’ve written above makes it sound easy but it really wasn’t.  Each QSO took significant time and lots of calling running a beam and 400 watts.  Things may get less difficult now that we’re into the second (final) week of operations but I’m sure it will never be easy to work 7O6T.

I’m not planing on trying any more QSOs with the operators on Socotra Island, I’ve got my fill and don’t want to take up any of the time they could be using to work other stations, I’m very happy with what I’ve got.

To find out more about Socotra Island and the 7O6T DXpedition, click the logo below.

Addendum – 14th May 2012

I wasn’t planning on trying for any more slots but the uneven chart of worked bands and modes was offending me so I had a bash and managed to work the extra one on 10m CW to give me a total of ten confirmed slots.

Ten slots of confirmed QSOs between G6NHU and 7O6T

Ten slots of confirmed QSOs between G6NHU and 7O6T

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Statistics – April 2012

April started badly for me because I managed to melt my Cushcraft MA-5B on the first day of the month while operating the ‘AFD Contest’,  Ironic really as it was an April Fools Day joke which backfired when the aerial went pop!

However it’s been a good month apart from that.  I’ve worked a nice number of new DXCC entities including Spratly, South Korea, Cambodia, Mount Athos, the Falkland Islands and Iraq.  In the last couple of days I picked up Bolivia and the British Virgin Islands as well, these two being on 20m using CW.

My DXCC confirmed count on LoTW has also shot up because the application I put in some weeks ago for 10m DXCC has been accepted and approved so the QSL cards I submitted have been added to my online total.  I’m nearly done with 15m DXCC as well and will be submitting that when the last couple of countries are confirmed.

QSOs made: 502
DXCC entities worked: 81
New DXCC entities worked: 13

Total DXCC worked: 184
Total DXCC confirmed using LoTW: 151
Total DXCC confirmed using LoTW/QSL cards: 158

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Solving a creaking mast problem

About three years ago a working party descended on my QTH and we did some major upgrades to my VHF aerial system.  We put up a longer pole, replaced the rotator with a bigger one, swapped all the cables out and fitted a masthead preamp.

Everything worked well and I was happy with the installation except for one thing.  When the wind blew, it creaked and it creaked badly.  It was lessened slightly by guying everything firmly in place but it still creaked when the winds came up.

I’d checked everything multiple times to ensure it was all tight but the creaking persisted.  I put it down to the vastly increased weight on the mast, the bigger rotator, the longer stubmast, the Barenco bracket for the rotator and I just lived with it.

Following the lightning strike last year, I took the whole VHF aerial system down and moved the 10m vertical from the back of the house to the front but once the weather turned, I noticed that it was still creaking.  I didn’t really think much about this until today when the weather got worse and the wind kicked up and the creaking returned.

I called Tony, G0MBA to discuss getting a couple of new T&K brackets and moving the mast to try and resolve this but he mentioned something which made me think.  When we upgraded my VHF aerial system back in 2009 we positioned the pole so that it was sitting in a protective metal cup directly on the flat roof on the side of the house – Like this:

9 ele 2m beam in foreground, mast resting on flat roof

9 ele 2m beam in foreground, mast resting on flat roof

You can see my old 9 ele Vargarda in the foreground with the mast sitting on the flat roof – In the background is my old 10m 5/8 which has now been replaced by a Sirio Gain Master.

The mast was touching the flat roof to take some of the vertical strain off the brackets, as you can see, there’s a lot of weight up that mast and it’s only supported by the three kevlar guys (which are rubbish by the way, they kept snapping).

Tony suggested popping onto the roof and just lifting the mast a couple of inches so that it’s away from the flat roof.  I did that today although I only raised it about half an inch from the roof and it instantly cured all the creaking problems.  The pole only has the Sirio Gain Master on it now so there’s hardly any weight there.

It seems really strange to be sitting in the shack now and hear the wind blowing strongly outside but not to hear a single creak coming from the mast.  It’s lovely!

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Cushcraft MA-5B is repaired with a new MT1 trap

Cushcraft were always known for good quality products but some years ago they were taken over by MFJ.  It’s no secret that MFJ have a bit of a reputation for poor quality control and they may or may not deserve the many nicknames that they’ve been given.

Personally, I’ve had no problems with any of the MFJ equipment I’ve owned or used.  My voice keyer worked perfectly and the ATU I was loaned for the QSO365 project performed flawlessly and was a very useful addition to my station when I most needed it.

I was a little concerned when I contacted Cushcraft (MFJ) about the problem with my MA-5B but their response was speedy and they told me they’d send me a replacement MT1 trap.  I had no idea how long this was likely to take but around a week after our exchange of emails, this package turned up.

Package-from-Cushcraft-containing-replacement-MT1-trap-for-my-MA5B

Package-from-Cushcraft-containing-replacement-MT-1-trap-for-my-MA-5B

This is what was inside.

Replacement MT-1 trap for Cushcraft MA5B

Replacement MT1 trap for Cushcraft MA-5B

It’s now all fitted and my aerial is back to how it should be.  It’s a shame it melted in the first place but that’s great customer service by Cushcraft/MFJ.

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New Acom 1500 HF+6M Linear Amplifier

I just saw the following information on cqdx.ru and it’s worth reposting here:

ACOM1500 is developed on the base of the well known ACOM1000. The tube GU74B has been replaced by 4CX1000A and the power supply is beefed accordingly. The RF power is  up to 1500 W. PEP output on 160 trough 6m Bands. Another improvement is the internal antenna switch with three antenna outputs. The LCD display has been replaced by VFD type. The size is unchanged, only few kgs has been added to the weight.

Acom 1500 front

Acom 1500 front

Acom 1500 back

Acom 1500 back

Acom 1500 right side

Acom 1500 right side

Acom 1500 left side

Acom 1500 left side

Apart from the higher power which is irrelevant in the UK, the main difference is the three antenna outputs.  I run with my Array Solutions Power Master II meter connected all the time so I wouldn’t see any advantage anyway.  I use an external Alpha Delta-4 antenna switch.

For those looking for a 1.5kW amplifier though, the Acom comes from a company with a good reputation and I’m sure it will be a popular addition to their product range.

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