BIG antennas…

I’ve had this long held dream of getting on top-band with a full size antenna!  Just imagine what could be achieved on a winters night with a full wave loop 😉  Even a full sized 1/4 wave vertical with a good counterpoise should be a magnificent antenna…  Don’t image I’m thinking shortened antenna’s here, no, I’m thinking BIG 😉

So, who is up for a bit of fun this winter?  We have several sandy beaches nearby with vehicular access that offer more than enough space to erect such an antenna…  OK, so what planet am I on, you ask? Ah, well like Baldrick I have a cunning plan 🙂  But I’m pretty sure my plan will work as its been done several times before and by Marconi himself….  Yes, I’m thinking kite antenna’s. 🙂

First off, the 1/4 wave vertical seems like an achievable start and flown above the worlds best counterpose it should be phenomenal!  Other configurations would work too – why not a delta loop?  OK it needs a couple of kites but that should be doable…  There are lots of video’s on Youtube but check out the website of G4ROJ and also note that he lives just up the road and is willing to do a club talk…..

Who’s in?

Andrew
G0RVM

History of Bob Heil (K9EID)

heil_soundYou have heard of Heil Sound, right?  Of course you have.  Bob and his company are mostly known in this country for their amateur radio microphones.  But do you know his background? Do you know what he has done for our hobby?  No, well take a few minutes and watch this video.  Its inspirational and reminds us just what ‘Ham Radio’ is all about and has achieved over the years.

http://youtu.be/zl5k0YLalBk?list=UUzgG5iIOZpqFBBkAgg5iN1w

TSGARC – can we get Bob, George and co to give us a presentation one evening?  They do this for other clubs as you will hear in the video.  What do you think?

Andrew
G0RVM

JOTA after the Scouts had gone…..

GM001.10.2014GM002.10.2014

The dynamic trio in action……..

The camera stayed in the same position, apart from the order of the dynamic trio can you spot the difference between the two pictures?

The pictures were taken with a Raspberry Pi with a camera module using a time lapse. The time lapse was created using a simple Bash script and a “CRON” job. The script had to be edited a couple of times before it did what was required.

Garry
G7NVZ

Successful JOTA

This year’s Jamboree on the Air at both Conygres and Woodhouse Park was another resounding success. In addition to members of the club we were also assisted by members of the Gloucester Amateur Radio and Electronics Society (GARES) and Woodhouse Park amateur Radio Club.

Paul, John, James and Garry at JOTA 2014

Paul, John, James and Garry at JOTA 2014

A successful two and a half days saw three stations (HF, VHF and UHF) assembled with CW practice and Flight Radar. A number of contacts were made to UK, European and two American stations. During the weekend a number of Beavers, Cubs, Brownies, Guides and Scouts practiced their Morse and spoke on the radio.

The operating conditions at Conygres having been improved over those last year with a new roof being installed. The catering once again was excellent with 6 Gourmet meals being consumed.

The three stations consisted of two FT-857s connected to a log periodic 70cm antenna and a crossed 5 element Yagi with the HF station being fed into a G5RV. The CW practice station utilised two oscillators and a decoding laptop. The Flight radar station was projected showing the location of aircraft as far afield as Heathrow.

I would personally like to thank all members who attended at both Conygres and Woodhouse Park for their assistance and planning.

Paul
M0ZMB

 

 

JOTA Planning & Operation

This week at the Thornbury & South Gloucestershire Amateur Radio Club is the final planning for JOTA.

JOTAWe will be operating a VHF and UHF station at Conygres teaching Scouts how to send a message over the air to Woodhouse Park Scout camp using Voice or Morse code.  The intention is to use VHF for FM phone and UHF for phone/slow Morse.  If you have time this weekend please say ‘hi’ to a Scout by responding to a CQ call.  We will be using the callsign: GB1WSG

Anyone who would like to help can operate with Peter and Rex from Woodhouse or operate from home.

Full details including operating frequencies are on QRZ.com.

GARES will be operating the HF Station during the day on Saturday18th and Sunday 19th hoping to make longer range contacts.

My thanks to John M0HFH for the content 🙂

Andrew
G0RVM

Trip to IOW and QSO

I am pleased to report a very successful and somewhat impromptue QSO was had on 2M on my trusty handheld (thank you again to Paul!!) whilst on our long weekend to the glorious (or not so weather wise) walklng vacation on the beautiful IOW.

From our bungalow at Seaview, North East of the Island, I was warmly welcomened into the ‘Waterside Net’ transmitting on the island on Sarurday morning at 9am. Sadley I wasn’t able to quickly scribble down call signs as this QSO was totally unexpected however my thanks to Bob, MIke, Elaine and Peter who were on the net and warmly invited me and the any of the club to hook up again if ever we are that way.

My signal reports ranged from 3/5 and 2/4 (S/R) which I thought wasn’t bad for a handheld behind glass and in a low spot which Sea View is albeit on the coast edge and into Sandown for Bob and Shanklin and East Cowes (for all the others) which is approx 8-9 miles maybe more and surprisingly over several large hills (not quite mountains!!).

Funny thing was I told them that I was from Bristol and I think most initially thought they had struck a long DX net but none the less throughly enjoyed it and made the day. Took the radio out walking later that day over high ground near Freshwater and in clear line of sight to channel islands etc but sadely nothing…bizarre that.

Happy days!!
Mark

New 2m VHF Allocation

Ofcom VHF Spectrum ReleaseOfcom has granted UK radio amateurs a temporary spectrum allocation adjacent to our existing 144-146 MHz allocation. The additional allocation will be between 146 MHz and 147 MHz.  It will become available from 31st October 2014, will require a NoV and that the amateur hold a full/advanced license.

The temporary allocation is the result of VHF spectrum reallocation and Ofcom’s plan to have a tapered release of spectrum in the 143 – 169 MHz region to new users on a first-come-first-served basis.

Ofcom have chosen their words carefully regarding the definition of ‘temporary’, but my interpretation is that we should expect a 12 month rolling period from 31st October 2014.

The release statement is interesting reading as it identifies potential new users and the types of communication that, in the future, may be used.

The Ofcom VHF release statement.

Andrew
G0RVM

National Hamfest report

Another very well attended Ham fest this year.

Wanting to arrive early and ‘browse’ (polite word for rummaging through stuff!) the boot sales outside the event hall/s didn’t disappoint. Could have spent a fortune on equipment you understand (better half used a rather less endearing term for it) however resisted. Everything from old radio gear (ex-army) to pcb boards etc. However one noteworthy point; upon searching for good value for money coax I have to say I was disappointed compared to the recent Newbury rally. Quite expensive off the drum prices!

Next stop antenna masts. I wanted to check out the proposed installation for the shack QTH.
Total Mast Solutions offered some interesting ideas for masts in small spaces or in other words stealth possibilities. Demo van was fun….hydraulic pump action through the roof of a VW camper on a par with TV location crews I reckon?

So into the main hall/s (well after coffee first early start up at 4am!). Tried to work systematically around in an orderly fashion however that soon went out the window as I switched to ‘what every caught my eye mode’.
Usual big guns out in all their new equipment splendour should you happen to have circa the odd £10k spare! Namely Kenwood, ICOM etc. I went straight to Yaesu who were smaller and appeared to be taking time to talk to hams on the floor circling the equipment (like sharks I have to add). Showcasing their FTDX 9000D of course way beyond little me and apparently does everything including the housework ….I was however heartened by the reps very growing report on the good old 450D which will be my main shack HF radio. Of course came away with armfuls of literature and the obligatory bag and pen.

Then on to Antennas as you know of particular interest to me. I found Sandpiper Antennas and Marc Foster (no relation to the other Mark Foster whom I also know well from my GB swimming connections!) an interesting browse. Spent time talking to him about bespoke antenna designs, application and would say that it seems bespoke manufacture is on the up. Some good advice about standard 2m/70cms home base set up and on to others for which I spent at least an hour browsing all. These including InnoVAntennas, Mookraker, LAM etc and the like, except the presence of American sales people on the Inno stand sort of through me a bit. Impressive antenna though if like me you have a spare 2 acre plot. One for John M0HFH would have been a captivating discussion with a small ‘home grown’ stand called G4TPH Mag Loop antennas (one on show he had made). Personally John didn’t think the loop (very flimsy) wasn’t a patch on the cobweb design!! Perhaps we ought to really think about developing that aspect of the club to go to these kinds of events??. Anyway met two guys an M6 like me and a 2EO (soon to be me I hope) both from local neighbouring clubs who were interested in him coming to give a talk and demonstrate his system/s – think they intended buying a kit but for best part of £80 we could make it ourselves (couldn’t we John) and by his (the owner) own admission that paid for mostly his time!!.

Paul would have liked to browse the electronics and components stands of which there were many. As I don’t really have an application as yet to solve or contemplate building I sort of skirted them but was stopped by a rather useful application to stream live radio feed to your TV!! Ha …I’ll never get permission for that but Paul might! Disappointed that I didn’t really see any bargain price MFJ analysers for sale – even with show price still dearer than ebay! Plenty buying though.

Couldn’t really depart the show or the main hall without passing by the RSGB stalls although I have to say the stands didn’t really do it for me. Not much on them to draw you in!! Would have liked to have seen more made of the RSGB training stand apart from the two reps who were just sat on an empty desk with Exam Board registration forms. Didn’t really get time to see all the committees there but I did visit the RAYNET group and found that aspect of radio work interesting. I would on a personal level like to look into that myself. Got some contacts so that was useful.

Final stop before being drawn back to the car boot sales was the bring and buy. More buying than bringing! Again rather captivating and a bit like ebay but or real! Was tempted by an old IOCM think it was a 717 or something of that description wanted £250-330 not sure but it had been smoked (think owner confused it with a kipper). Resisted as always and anyway just soaked up the atmosphere of being amongst the hagglers for that and moved back to the car boot and pondered a final whip around the hall but by then getting very busy.

Departed with a new mobile rubber duck antenna (yes I know last of the big spenders!!) for the wouxun …well had to have something and armfuls of magazines and sales literature for us to read at club. Very nearly invested in a duel band mobile antenna for the landy but….as Andrew knows I am still contemplating the set up for that so no having seen any real mounts that can take a decent loading decide against at the show. Watch that space though. Also disappointed I suppose that I didn’t have more ‘bits’ (perhaps a couple of dozen pl259s, BNC’s and the odd length of RG213) but when there isn’t a need or application (just yet) isn’t that just hording!! Bit disappointed that Clarkes and others who I met at Newbury weren’t there but guess wrong part of the country. However enjoyable day out and very glad I went and will go again to others if not to report back to club.

PS. I can always make up for the not having horded stuff this Sunday at the Newbury landy fair!!

Mark Beasley
M6KMJ