Date   

Re: Club Badges

Marc (M0KYB)
 

Hi all,

The badges have now arrived so I'll bring them along next Thursday. Sorry for the delay, the supplier had issues with shortage of raw materials.
£10 cash each please.

Thanks

Marc 


SOTA Presentation tonight cancelled due to Covid, sorry ...

Marc (M0KYB)
 

Hi all,

I tested positive on Sunday and was hoping to get rid of it before today but ... sadly not ... I am still testing positive so unfortunately, the SOTA presentation will have to happen at a later date. My apologies to everyone, especially Viv.

Best wishes

Marc


Re: FMAC Update

James (M1DST)
 


Re: Downloading MMANA-GAL in English?

Philip Perkins
 

Brilliant! .. Now why didn't I think of that cunning little trick?
Thanks very much Viv, and I hope others may benefit from this piece of wisdom!
Philip
-----


Re: Downloading MMANA-GAL in English?

Viv Williams
 

Hi Phil,
      I think it is always dlownloads in German. However  it is easy to fix. Start a programme. Navigate to the Einstellungen Tab and click. You then should see a Language tab. Set English and you should be fine.

Regards

viv

On Fri, 22 Apr 2022 at 21:12, Philip Perkins <ppml5@...> wrote:
Hello,
Can anyone provide a link for downloading MMANA-GAL in an English version? I have tried three times, and although the introduction and instructions are all in English, the actual program is always in German.
Many thanks!
Philip
----
Philip Perkins
<ppml5@...>
Wiltshire UK & Luberon France
www.astrocruise.com
--







Downloading MMANA-GAL in English?

Philip Perkins
 

Hello,
Can anyone provide a link for downloading MMANA-GAL in an English version? I have tried three times, and although the introduction and instructions are all in English, the actual program is always in German.
Many thanks!
Philip
----
Philip Perkins
<ppml5@...>
Wiltshire UK & Luberon France
www.astrocruise.com
--


RSGB 144MHZ FMAC - Update April #contest

Dom - 2E0WHQ
 

Hi All,

For those that haven't already seen, the club continues to go from strength to strength in the 2m FMAC. The results are in for this month and we have managed to hold our lead in 1st place and slightly widen the lead too. This is an excellent result for the club and demonstrates all of your commitment and dedication to operating in these contests. Well done to everyone in the club for taking part and making this possible. You should all be very proud of your individual and club achievements.



Cheers,

73

Dom, 2E0WHQ


Re: 23cm FM, Wed 13th 7pm

Graham (G4OED)
 

Horizontal

G


On 13 Apr 2022, at 20:15, G6UAJ Paul Longstaff <G6UAJ@...> wrote:


Brilliant, thanks Graham. Was your yagi Horizontal or vertical tonight?


--
Sent from my Android phone with GMX Mail. Please excuse my brevity.
On 13/04/2022, 19:55 "Graham (G4OED) via groups.io" <grahperry@...> wrote:
Hi,

This is the link to the design of the 6 ele yagi for 23 cm.


As I mentioned I was only able to find 1/4 square brass for the boom.  I milled one side down to 6mm, so as to maintain the same ratio of the thickness of the boom to the length of the elements.  In other words the holes for the elements were drilled into the milled surface.

Hope this helps

Graham
G4OED


On 12 Apr 2022, at 20:28, Darren G1ERM <darren166957@...> wrote:

Hi All, 
Paul G6UAJ and I have been chatting on 23cm FM recently. We'll be on at 7-7:30pm on Wed 13th 1297.6MHz, all welcome to join in. 
I'm in Old Town, 1W to a corner reflector. 
Paul is west Swindon, 10W, probably to a colinear.  

Darren G1ERM. 


Re: 23cm FM, Wed 13th 7pm

G6UAJ Paul Longstaff
 

Brilliant, thanks Graham. Was your yagi Horizontal or vertical tonight?


--
Sent from my Android phone with GMX Mail. Please excuse my brevity.

On 13/04/2022, 19:55 "Graham (G4OED) via groups.io" <grahperry@...> wrote:
Hi,

This is the link to the design of the 6 ele yagi for 23 cm.


As I mentioned I was only able to find 1/4 square brass for the boom.  I milled one side down to 6mm, so as to maintain the same ratio of the thickness of the boom to the length of the elements.  In other words the holes for the elements were drilled into the milled surface.

Hope this helps

Graham
G4OED


On 12 Apr 2022, at 20:28, Darren G1ERM <darren166957@...> wrote:

Hi All, 
Paul G6UAJ and I have been chatting on 23cm FM recently. We'll be on at 7-7:30pm on Wed 13th 1297.6MHz, all welcome to join in. 
I'm in Old Town, 1W to a corner reflector. 
Paul is west Swindon, 10W, probably to a colinear.  

Darren G1ERM. 


Re: 23cm FM, Wed 13th 7pm

Graham (G4OED)
 

Hi,

This is the link to the design of the 6 ele yagi for 23 cm.


As I mentioned I was only able to find 1/4 square brass for the boom.  I milled one side down to 6mm, so as to maintain the same ratio of the thickness of the boom to the length of the elements.  In other words the holes for the elements were drilled into the milled surface.

Hope this helps

Graham
G4OED


On 12 Apr 2022, at 20:28, Darren G1ERM <darren166957@...> wrote:

Hi All, 
Paul G6UAJ and I have been chatting on 23cm FM recently. We'll be on at 7-7:30pm on Wed 13th 1297.6MHz, all welcome to join in. 
I'm in Old Town, 1W to a corner reflector. 
Paul is west Swindon, 10W, probably to a colinear.  

Darren G1ERM. 


23cm FM, Wed 13th 7pm

Darren G1ERM
 

Hi All, 
Paul G6UAJ and I have been chatting on 23cm FM recently. We'll be on at 7-7:30pm on Wed 13th 1297.6MHz, all welcome to join in. 
I'm in Old Town, 1W to a corner reflector. 
Paul is west Swindon, 10W, probably to a colinear.  

Darren G1ERM. 


Re: Introduction & request ...

Den (M0ACM)
 

Yes. Hope all wasxgood with you Phillip.

Yes, Darren, some time in  the last week of this month sounds good once Phillip gives us the green light for that.

73 both

Den


On Mon, Apr 11, 2022, 6:02 PM Darren G1ERM <darren166957@...> wrote:
Philip, hope all has gone well with the op. 
I use an end fed antenna and I find it simple, discreet and effective.  

Den, yes, site visit would be good. I'm away 18th-24th but generally ok outside of that. 
Darren.


Re: Introduction & request ...

Darren G1ERM
 

Philip, hope all has gone well with the op. 
I use an end fed antenna and I find it simple, discreet and effective.  

Den, yes, site visit would be good. I'm away 18th-24th but generally ok outside of that. 
Darren.


Re: Introduction & request ...

Den (M0ACM)
 

Philip.

I understand you will not pick up this input till later in the week. I trust by the time you read this all will have gone well with your op - but remember what I said earlier .... no flying forward rolls off the roof for 6 weeks !!

Here's my next two penn'th rearding the aerial plans to support both John and Darren's very useful  inputs....

Strongly agree with John. A 50mm hole through the shack wall sleeved with a pvc pipe will allow several coaxes through as the station develops - all for just one drilling session. 

A push fit blanking cap on at least the outside of the tube with a slot for coaxes on the protruding outside of the pipe with a simple to remove draught stopper IN the tube... all highly recommended. I can photo mine as a guide before we get practical!

Ladder line is a ('fussy') feed line type which is balanced only when it is in free space. IF you NEED to use it - like you would in a G5RV and if it NEEDS to be a certain length (again as in a G5RV),  it MUST be kept away from itself and any metal poles etc, timber/brick which may become wet..... you get the picture. No folds on itself either (you can do that with coax but not balanced feeder).

I don't know the aerial you are looking at but I will pitch in alongside the comments re the benefits of an EFHW.

The WSPR map I sent you of qsos  (including to VK) was in fact an inverted L EFHW. They are much under-rated and simple to put up, use and maintain.

Fully agree the need for the (easy to diy) 49:1 unun for the EFHW and the common mode choke (I can rehash my recent talk on those if required)- both easily mounted at ground level at the bottom of the L. 

Pulleys and halyards with insulators on the poles also help maintenance as will the rotating  scaffold clamps to mount the poles - for which I sent you my photo last week. Anything in my book to prevent the need to climb on roofs or use ladders later!!

When you mention GROUNDING ... THAT starts to open a whole new can of worms!

The equipment IN the shack ALL need to be cross bonded to each other. No doubt about that. However taking that bond to EARTH and taking some other part of your external aerial feed to EARTH is a whole new ball game...

Q1: Does the aerial really require GROUNDing (as opposed to a counterpoise/radials) ?

If REALLY necessary then Q2: what type of electricity supply do you have to your property (TT, TNS or TNC-S)?
If the last, BEWARE providing external earth pathways without more detailed planning for possible consequences beyond your control!!!

As for lightning, I realise that up in Rambury you are closer to heaven than we poor souls trying for DX from the bottom of Swindon (!) but lightning protection - while potentially another discussion all by itself (!) may be a simpler matter of the Lightning app and  unplugging when required / not in use. Further thinking on this can be left till later maybe?

Darren: I suggested to Philip t'other day that I would be happy to do a site planning recce after Easter. Happy to join you at mutually convenient time if you like.

Good to see this level of positivity and support coming from Members via this forum.

73 all

Den.


Re: Introduction & request ...

John Claridge 2E0JJC
 

Hi Philip

In you email you say....

"(2) hole through wall into extension/shack for coax.
Exactly. Anchored in some way of course - I don't know whether it's OK to put the coax directly thru wall or if there should be an external connector. "

You may wish to consider what I now wish I had done from day one of my first antenna installation. That is to put a pvc tube through the wall so that it is easy to install more coax cables. You can temporarily seal it with a squirt of expanding foam or something similar.
I now have three coax feeds each with their own hole...guess who is not pleased. 😀

Just a thought.

John. 2E0JJC



On Sun, 10 Apr 2022, 5:51 pm , <ppml5@...> wrote:
Wow Darren, that's beyond fantastic! :}
Comments in line below:

At 15:44 10/04/2022, you wrote:
Philip, 
I could help with the installation.
I think you need these things doing:
 
(1) eye bolt fitting to the Apex.
Exactly! If possible (and not too much of a pain), an insulator attached prior to the eye bolt, and a swivelling eye bolt, or even a swivelling pulley?  I am considering using the ZS6BW antenna, in which case there will be about 3m excess cable at both ends which I would like to 'dog leg' down to nearer ground level (via nylon cord), and attach to wall with a cleat hook - to enable antenna to be lowered for repair, etc.

I don't know about the apparent need for 40 feet of ladder line - whether the antenna can still work if this is cut short, or if not whether the ladder line can be 'concertinerd' in the air. I will ask the supplier.

Is the flat roof with chippings? If so, I'm wondering if it is OK to put a ladder on it. If the chippings can be brushed aside that would be OK. It would be good to use some board on the flat roof to spread the ladder's weight.
Yes, chippings on flat roof, but quite loose, so can be brushed aside and a board placed firmly to support the ladder.

I'm assuming there's room to work around the skylight in the flat roof.
I think it's OK - we've had cleaners doing the facias and soffits up there just a week ago. They are around here frequently so I'll ask them about ladder placement. I think our long extending ladder should be fine. I can't actually lift it at the moment - I'm going in for spinal surgery tomorrow but should be responding again by Wednesday / Thursday.

(2) hole through wall into extension/shack for coax.
Exactly. Anchored in some way of course - I don't know whether it's OK to put the coax directly thru wall or if there should be an external connector. Probably the latter because I may want to look at fitting a lightning arrestor.

(3) 7.6m mast - I see you have this in the very corner of the garden. Could this be supported by anything, maybe attached to the rear of the shed? Or do you have an idea for how this can be fitted?
Yes! it can be supported by the back of the shed (actually a 'summer house-} but preferably with a stand-off to take it as far into the corner as possible (not actually into the hedge). Hopefully the base can just be a hole in the ground - filled perhaps with that 'fast-crete' stuff. Again, insulator and pulley at top of pole, then 'dog leg' down the pole to be extended with insulator and nylon cord and tied off with cleat hook.

(4) ground rod. I'm aware of these    https://www.screwfix.com/p/earth-rod-3-8-x-4/28044    being used, see the reviews where using for ham radio is mentioned. I haven't done this job myself, but I have a friend who has done this successfully with these Screwfix rods.
Yes, I've seen these and I think it should be perfectly good. They also supply the earthing cable.

These are my thoughts, but may be flawed - heck, I've never done this!
As I say, I will pay handsomely for time and materials. I am happy to source anything required, though you may know better what's needed.

We're at:
52 Ashley Piece
Ramsbury SN8 2QE
Tel: 01672 520515

There's a small road to Ashley Piece directly off the B4192 from Swindon - SatNav should take you there.
73s!
Philip

Darren, G1ERM (Swindon).


EFHW Antennas

Philip Perkins
 

Special thanks to Viv and Marc for very helpful comments - I've had to start a new thread unfortunately because the previous one became locked. This is all wonderful, except that I now need to get my head around EFHW Antennas! :}  I shall search for diagrams to see how such a design may fit my ground space.
Thanks and 73s!
Philip


Re: Introduction & request ...

Philip Perkins
 

Wow Darren, that's beyond fantastic! :}
Comments in line below:


At 15:44 10/04/2022, you wrote:
Philip, 
I could help with the installation.
I think you need these things doing:
 
(1) eye bolt fitting to the Apex.
Exactly! If possible (and not too much of a pain), an insulator attached prior to the eye bolt, and a swivelling eye bolt, or even a swivelling pulley?  I am considering using the ZS6BW antenna, in which case there will be about 3m excess cable at both ends which I would like to 'dog leg' down to nearer ground level (via nylon cord), and attach to wall with a cleat hook - to enable antenna to be lowered for repair, etc.

I don't know about the apparent need for 40 feet of ladder line - whether the antenna can still work if this is cut short, or if not whether the ladder line can be 'concertinerd' in the air. I will ask the supplier.

Is the flat roof with chippings? If so, I'm wondering if it is OK to put a ladder on it. If the chippings can be brushed aside that would be OK. It would be good to use some board on the flat roof to spread the ladder's weight.
Yes, chippings on flat roof, but quite loose, so can be brushed aside and a board placed firmly to support the ladder.

I'm assuming there's room to work around the skylight in the flat roof.
I think it's OK - we've had cleaners doing the facias and soffits up there just a week ago. They are around here frequently so I'll ask them about ladder placement. I think our long extending ladder should be fine. I can't actually lift it at the moment - I'm going in for spinal surgery tomorrow but should be responding again by Wednesday / Thursday.

(2) hole through wall into extension/shack for coax.
Exactly. Anchored in some way of course - I don't know whether it's OK to put the coax directly thru wall or if there should be an external connector. Probably the latter because I may want to look at fitting a lightning arrestor.

(3) 7.6m mast - I see you have this in the very corner of the garden. Could this be supported by anything, maybe attached to the rear of the shed? Or do you have an idea for how this can be fitted?
Yes! it can be supported by the back of the shed (actually a 'summer house-} but preferably with a stand-off to take it as far into the corner as possible (not actually into the hedge). Hopefully the base can just be a hole in the ground - filled perhaps with that 'fast-crete' stuff. Again, insulator and pulley at top of pole, then 'dog leg' down the pole to be extended with insulator and nylon cord and tied off with cleat hook.

(4) ground rod. I'm aware of these    https://www.screwfix.com/p/earth-rod-3-8-x-4/28044    being used, see the reviews where using for ham radio is mentioned. I haven't done this job myself, but I have a friend who has done this successfully with these Screwfix rods.
Yes, I've seen these and I think it should be perfectly good. They also supply the earthing cable.

These are my thoughts, but may be flawed - heck, I've never done this!
As I say, I will pay handsomely for time and materials. I am happy to source anything required, though you may know better what's needed.

We're at:
52 Ashley Piece
Ramsbury SN8 2QE
Tel: 01672 520515

There's a small road to Ashley Piece directly off the B4192 from Swindon - SatNav should take you there.
73s!
Philip

Darren, G1ERM (Swindon).
_._,_._,_


Re: Introduction & request ...

Darren G1ERM
 

Philip, 
I could help with the installation. 
I think you need these things doing:
 
(1) eye bolt fitting to the Apex. 
Is the flat roof with chippings? If so, I'm wondering if it is OK to put a ladder on it. If the chippings can be brushed aside that would be OK. It would be good to use some board on the flat roof to spread the ladder's weight. 
I'm assuming there's room to work around the skylight in the flat roof. 
 
(2) hole through wall into extension/shack for coax.
 
(3) 7.6m mast - I see you have this in the very corner of the garden. Could this be supported by anything, maybe attached to the rear of the shed? Or do you have an idea for how this can be fitted?
 
(4) ground rod. I'm aware of these    https://www.screwfix.com/p/earth-rod-3-8-x-4/28044    being used, see the reviews where using for ham radio is mentioned. I haven't done this job myself, but I have a friend who has done this successfully with these Screwfix rods.
 
Darren, G1ERM (Swindon).


locked Re: Antenna Query

Andy Sharman G0UWS/M1G
 

Sent on behalf of Den M0ACM although a view I also share as a moderator.

I have to admit that when I saw Gareth's initial comment knocking the Foundation Licensing-to-Full Licence model, I felt extremely uncomfortable with that opinion.

 
However, personal opinion is just that and so is free speech in the UK ...to a point.
 
I did receive some PMs after the initial post asking "what the #@*& ?" and alluding to the supposed extinction of dynasaurs, however, in the interests of gaining opinions on the topic from elsewhere, I opted to sit on my hands for a few days.
 
Regrettably, the tone has now become much less an opinion about a scheme - which as Marc has said from personal experience - has done the hobby massive amounts of good, and more a rant by one licensed amateur about (and deliberately re-naming) the national voice for UK Radio Amateurs. 
 
THIS is not productive; it is not helpful to others and is not the reason for the existence of this forum.
 
Whilst we respect that you may have a personal opinion on many things, Gareth, THIS forum is not your conduit to express that negativity.
 
LET THIS NOW BE THE END OF THAT NEGATIVE THREAD. Thank you.
 
Den (moderator)


locked Re: Antenna Query

Marc (M0KYB)
 

Hello Phil,

I agree with Viv's comments and can confirm that a multi-band EFHW (End-Fed Half Wave) 40/20/15/10m can be very effective. I used one for the first 12 months with 10W in 2020 and managed to work more than 75 countries that year. They are cheap and easy to make or buy. In fact, the club (via Tony, G4LDL) has several high quality 49:1 transformers in stock from a recent bulk purchase if you would like one, they are £25 I believe. They basically bring the high impedance of the antenna down to around 50 ohms. You will need a good common mode choke a few feet below the transformer to stop any current coming back down the coax. The wire would be around 21m (circa 65 feet) long. If you wanted to, a coil can be inserted at the end to make the antenna work on 80m, this would extend the length of the wire by another 8-9 feet or so. I now have a Hex Beam for HF but I use the EFHW for 40m at home and often take it with me for portable operation, it is easy to take down and put up with less than 10 minutes work.

With regard to Licenses, I'm afraid I do not agree with Gareth. The introduction of the 3-License system was in my opinion a good idea. It has allowed almost 4000 people to become Licensed and more than a quarter of them have progressed to Intermediate and Full Licenses. I progressed through all three stages in a period of 6 months. Whilst not all the new recruits will meet Gareth's high standards, any new blood to a dying hobby is welcome and the vast majority of new Licensees I have spoken to are sensible, enthusiastic and eager to learn more. The full exam is not everything, as Gareth admits himself "I have forgotten much of it", and for that reason it is best to take all 3 exams as quickly as possible.

Incidentally, it is possible to take all three exams on the same day if you wish, it will just be a long day ...

Also, the RSGB have been consulting on the option for people to choose the Direct-to-Full License option in the future. The result of the consultation can be found here :

https://rsgb.org/main/about-us/committees/examination-standards-committee/direct-entry-to-full-licence-rsgb-consultation/

Nothing has been announced but my guess is it won't be long, perhaps in the next 6-12 months.

Best wishes,

73
Marc