Date   

Re: CQWW SSB 2021 edition - G4L.

Tony (G4LDL)
 

Didn’t do a major attempt because I hadn’t managed to get a decent low band antenna or a beam up.  Went for 40m single band, HP, unassisted.

Had to use the Cushcraft R7, a 40m to 10m vertical but did have a Wellbrook Loop to help with RX.  The R7 didn’t perform particularly well as a SB contest antenna so concentrated on mults – also with a view to the Club Challenge.

Didn’t get a lot of chance to operate in the daytime so missed some more local mults like GD, GI, GJ, GU etc.  Also heard a couple of fairly rare stations but couldn’t break the pile ups. Usual problem as callers using the cluster already know the DX’s callsign but I have to listen for it among all the cretins constantly calling on top of everything – including the DX giving his callsign!

Tried calling CQ; when I could find space; but only managed to get about 12 Qs for around one and half hours calling (not in one go). Had a strong “discussion” with a YU who decided to call CQ on top of where I had been calling CQ for some while. He ignored my complaints but immediately responded when I offered him a contact. He swore that he had asked if the frequency was in use but I thought not. I then I asked him how strong my signal really was and he said 59 so I queried why he answered me when I offered him a contact but could (wouldn’t) hear me when I was calling CQ He said sorry and then went on calling CQ! Not uncommon I’m afraid.

Also disappointed to hear several Region 1 stations actually working USA above 7.2 MHz.

 

Score   Qs = 309;    Pts = 412;   Zones = 18;    Countries = 67.    Score =35,020.

 

G4LDL/G4L.


Re: CQWW SSB 2021 edition

Den (M0ACM)
 

Yes filtering is key on these "all working stations on together rat race". 
That sounds like an interesting talk topic,
(@ Viv.) though facilities on different rigs vary massively and accessing the same kind of function on different rigs is also hugely varied.

Logging contests I use N1MM+. It is excellent ...and free !

My poor likkul wire hairy-al didnt even allow me to HEAR some of the more exotic pileups, let alone try to work them, so I am well jell !!

73 to all who dipped their toes !
....and to all those other less mad people who steered very clear !!

Den


Re: CQWW SSB 2021 edition

David (G7IXU) <david.welch.g7ixu@...>
 

Some fantastic results there, congratulations to everyone.

 

I too dipped in and out, not sure how many hours, certainly less than 10, my results were:

 

QSO’s: 53

DXCC: 32

Zones: 10

 

I’ll just be submitting a check log.

 

Station is a Yaesu FT-950 at 100w, into 40m and 20m dipoles connected to a common centre at 15’ to 18’.

 

I didn’t manage any new countries but was impressed by the pile ups for Aruba and Reunion Island. No chance of breaking through, so well done Dom for bagging both of them … and others. Happy to get 3A3A and Z60A.

 

I think I could do with some tutoring on getting the best out of the FT-950’s DSP features. 40m and 20m were packed solid and I was constantly battling the high pitched sounds of stations just off the station I was trying to listen to.

 

What logging programs were you guys using, were they counting up your score as you went along?

 

Best 73

David G7IXU

 

 

 

From: sdarc@groups.io <sdarc@groups.io> On Behalf Of Marc (M0KYB)
Sent: 01 November 2021 14:16
To: sdarc@groups.io
Subject: Re: [sdarc] CQWW SSB 2021 edition

 

On Mon, Nov 1, 2021 at 01:32 PM, Dom (2E0WHQ) wrote:

Really interesting looking at the QSO Maps. It looks like both Marc and I were pretty much working the same areas, despite the difference in power and antennas

Yes, I agree, don't think my results would be vastly different with 50W to be honest. The directionality of the hex beam made all the difference. The SPID rotator worked as hard as I did, constantly turning. Alt J in N1MM+ to automatically turn the beam to the exact heading of the station being worked. It is not a superfast rotator, 100 seconds to do a full 360 degrees @ 13.8V. I will have to feed it with the full 18V next year to get an extra 10 seconds of turning speed ...

Shame I didn't get to work Australia or New Zealand, I could faintly hear them but was not able to work them. I also heard Antartica, but couldn't break through the pile-up.

Marc


Re: CQWW SSB 2021 edition

Marc (M0KYB)
 

On Mon, Nov 1, 2021 at 01:32 PM, Dom (2E0WHQ) wrote:
Really interesting looking at the QSO Maps. It looks like both Marc and I were pretty much working the same areas, despite the difference in power and antennas
Yes, I agree, don't think my results would be vastly different with 50W to be honest. The directionality of the hex beam made all the difference. The SPID rotator worked as hard as I did, constantly turning. Alt J in N1MM+ to automatically turn the beam to the exact heading of the station being worked. It is not a superfast rotator, 100 seconds to do a full 360 degrees @ 13.8V. I will have to feed it with the full 18V next year to get an extra 10 seconds of turning speed ...

Shame I didn't get to work Australia or New Zealand, I could faintly hear them but was not able to work them. I also heard Antartica, but couldn't break through the pile-up.

Marc


Re: CQWW SSB 2021 edition

Dom - 2E0WHQ
 

Great showing from the club! 

Really interesting looking at the QSO Maps. It looks like both Marc and I were pretty much working the same areas, despite the difference in power and antennas, which just goes to show you that people are listening for you! Obviously Marc's efforts were about mine to the power of 10! and what a cracking effort, Marc, it has to be said! Nice to work you on 10m during your 'run'. The propagation on 10m on Sunday morning was amazing.

Anyone else want to add a write-up? 

Dom, 2E0WHQ


Re: CQWW SSB 2021 edition

Marc (M0KYB)
 

Hi all,

Well, I can confirm that the hex beam works!

I operated for 44 hours, catching 3 hours of sleep on Saturday night and finishing at 11pm on Sunday night. By that time it felt like I had "milked the bands dry" to be honest, I could not find any stations other than duplicates ... exhausting but great fun, although everyone I explain this radiosport world to thinks I'm mad.

Category: Single Operator - All Bands - Assisted - Low Power - No Overlays
Equipment: FlexRadio 6400 SDR, 100W. Radiosport headset. Hex Beam at 10m height for 10/15/20m bands, EFHW wire @ 6m for 40/80m bands.

Band QSOs Points Zones Countries Pt/Q
3.5 41 39 3 16 1
7 140 149 9 43 1.1
14 299 479 17 66 1.6
21 179 351 21 59 2
28 197 466 17 40 2.4
Total 856 1484 67 224 1.7
Score 431844        
1 Multi = 2.9 Qs        

Not sure where that gets me but I think that's not a bad score ... I managed 86,000 points last year and that put me in 8th place in England, the No 1 had 366,000 points. But who knows, it varies year on year.

Very happy to have contacted:

Cape Verde, Liechtenstein, Monaco, Kosovo, Montenegro, China, Andorra, Fernando de Noronha, Cuba, Suriname, St. Maarten, Saudi-Arabia, UAE, Trinidad & Tobago, Lesotho, Reunion Island, Iceland, Uruguay, Aruba, Curacao, Ceuta & Melilla, Cayman Islands, Faroe Islands, Kazakhstan, Madeira, Azores, Kalingrad, North Macedonia, Argentina, Brazil, Canada ...



Had to lower the hex beam for several hours when there were strong gusts and I wish I could have a better antenna for 80m (no room). No antenna for top band sadly. Only had one run (10m on Sunday), but that was really nice logging over 100 stations in 1 hour. Strategy was to clock up the multipliers on a mixture of bands as early as possible and then exploit them.

Biggest strain on the body was wearing glasses underneath the (tight fitting) headphones, it hurts after 40 hours! The things we do for our hobby ... Perhaps contact lenses required next year. And the footswitch kept slipping away from me so I taped it to the floor.

Bring on CQWW 2022 !! Well done everyone.

Marc
M0KYB


Re: CQWW SSB 2021 edition

Dom - 2E0WHQ
 

Great to see, hear and work some of the other club members during the CQWW Contest.

I chose to work across the weekend, with my plan to work DX rather than numbers. Whilst I like working these exotic destinations on FT8, I also like to get them in my log on SSB and this weekend didn't disappoint. I worked on 80m, 40m, 20m, 15m & 10m. As well as working some great DX, probably one of the most pleasurable parts of the contest was the absolutely cracking DX and propagation on 10m on Sunday morning.

DX highlights for me were:
Aruba, Cape Verde, Cayman Islands, China, Curacao, Dominican Republic, Puerto Rico, Reunion Island, Trinidad & Tobago.

I also final got to work 3A3A (Monaco), who I needed for the club contest. Unfortunately C3 (Andorra managed to elude me, despite several tries).

My working conditions:

ICOM IC-7300
50w
Homemade 20m Inverted V, Homemade EFLW Inverted L, Multi-Band Vertical (which packed up in the high winds sending the SWR all over the place)
Sennheiser Headphones

Hours on the air: Around 15 hours, but I was doing a lot of dipping in-and-out, so adding it up, it will be about 15 hours.

I entered as Mult-Band, Single Operator, Unassisted, Low Power.

197 QSO
20 Zones
37 Countries
43,512 Points

My QSO Map:

All-in-all, a great weekend on the radio and a lot of fun.

73
Dom, 2E0WHQ


Re: CQWW SSB 2021 edition

Den (M0ACM)
 

A good effort there,  Ian. 

To be honest, you didn't miss much later on....

From tea time today (Sunday) 20m collapsed from the East very rapidly! 

I managed to work only 16 Qs from 19h00 to 21h00 - and all of them were NA !!  Not a squeak from EU (happily!).

By 21h00 the band was gone and I packed up (and saved some Carbon!)

When I packed up this evening Hartland was showing K at 4 !

My effort this weekend was also a secondary use of time and a make-shift aerial (foxy chewed the support cords and then the wire of my 40m delta!).

I found Saturday condx were OK until late evening (Increased geo mag activity last night but improved this morning).

My stats...
Single band - 20 metres, Classic.
Single Op, Un-assisted, Low Power.

Only 9h 53m on air.

184 Qs
11 Zones
39 Countries
13,900 points

Best DX were several to Brazil, mid west US and Asiatic Russia. (No JA or further). Nothing sub Saharan.
Some rare EUs (for me) included Monaco and Leichtenstein.

IC 7300, 100w,  20m Vertical End Fed.

Bon sėjour !

Acme


CQWW SSB 2021 edition

Ian McCarthy G3YBY F5VKT
 

Hi all,

Just a quick report on my CQWW effort this weekend before leaving for the ferry this evening. It was always going to be a casual part time effort as rugby in Bath got in the way yesterday afternoon and packing the car today. The main reason for entering was to try and earn a qualification point for my contest call renewal (G3Y). I decided to do 20m single band unassisted low power as it should give me a fighting chance of getting 20% of the UK winners score. Conditions did seem variable and the band noisy at time due to  a CME and a high K index but managed to work a couple of VKs and BYs but no west coast US. Ended up with 351 QSOs, 59 countries and 19 zones for a score of 38454. Rig FT5000, antenna 3 element SteppIR at 25 feet.

Look out for me in the CQWW CW at the end of November - I will be using my other contest call TM5T
See you all when I return in December.

73 Ian G3YBY F5VKT


Re: Swindon New LED Lighting #QRN #QRM

Tony (G4LDL)
 

I'm hoping that when they change ours from the old sodium the QRN will reduce!
LDL.

On 26 Oct 2021 19:11, "Den (M0ACM)" <denf.acm@...> wrote:
Yes, I have has an led light dead opposite the front of my house for close to a year...and nothing!

Not as close as you but good to hear your experience is similar.

.... Else we would have to ask the Borough about their EMF compliance !! ;)

.....there might be a silver lining to the emf grey cloud.. EN55051 seems to be being ignored maybe emf will be an alternative avenue!

Acme

On Tue, Oct 26, 2021, 6:36 PM Dom (2E0WHQ) <domwilko@...> wrote:
So, at stupid o'clock this morning, the council turned up outside my property to change the street lamps over to new LED lighting. They changed the lights at both the front and rear of my property. The lamp at the rear is probably no more than 5m away from my HF antennas and about 10m away from my 70cm, 2m & 6m colinear.

This evening, using as many of my outside antennas as I could. I turned on multiple radios and listened across multiple HF, VHF and UHF bands and waited with baited breath for the new LED lights to come on, fearing the worst. Just after 18:00, the lights came on..........

And, nothing! No QRM, not a sausage! I breathed a sigh of relief!

















Re: Swindon New LED Lighting #QRN #QRM

Den (M0ACM)
 

Yes, I have has an led light dead opposite the front of my house for close to a year...and nothing!

Not as close as you but good to hear your experience is similar.

.... Else we would have to ask the Borough about their EMF compliance !! ;)

.....there might be a silver lining to the emf grey cloud.. EN55051 seems to be being ignored maybe emf will be an alternative avenue!

Acme

On Tue, Oct 26, 2021, 6:36 PM Dom (2E0WHQ) <domwilko@...> wrote:
So, at stupid o'clock this morning, the council turned up outside my property to change the street lamps over to new LED lighting. They changed the lights at both the front and rear of my property. The lamp at the rear is probably no more than 5m away from my HF antennas and about 10m away from my 70cm, 2m & 6m colinear.

This evening, using as many of my outside antennas as I could. I turned on multiple radios and listened across multiple HF, VHF and UHF bands and waited with baited breath for the new LED lights to come on, fearing the worst. Just after 18:00, the lights came on..........

And, nothing! No QRM, not a sausage! I breathed a sigh of relief!
















Swindon New LED Lighting #QRN #QRM

Dom - 2E0WHQ
 

So, at stupid o'clock this morning, the council turned up outside my property to change the street lamps over to new LED lighting. They changed the lights at both the front and rear of my property. The lamp at the rear is probably no more than 5m away from my HF antennas and about 10m away from my 70cm, 2m & 6m colinear.

This evening, using as many of my outside antennas as I could. I turned on multiple radios and listened across multiple HF, VHF and UHF bands and waited with baited breath for the new LED lights to come on, fearing the worst. Just after 18:00, the lights came on..........

And, nothing! No QRM, not a sausage! I breathed a sigh of relief!
















Microwave EMC

James (M1DST)
 

Here is a video from last weeks BATC CAT21 on microwave EMF calculations.


Re: EMF Calculation - No Inverted V #EMF

Dom - 2E0WHQ
 

Thanks Den for taking the time to delve a little deeper. If I get a chance over the weekend, I take a look at the finer workings of the spreadsheet to see what data is being pulled from where, etc.
It should be easy enough to plumb in your own figures for custom antennas, etc.

73

Dom


Re: EMF Calculation - No Inverted V #EMF

Den (M0ACM)
 

Thanks Mike.
Would be nice if there were a "subscribe" option so we got push messages! I haven't come across such an option. You?
Den





-------- Original message --------
From: "Mike (G4HGV)" <mleach@...>
Date: 22/10/2021 12:34 pm (GMT+00:00)
To: sdarc@groups.io
Subject: Re: [sdarc] EMF Calculation - No Inverted V

New version 11b now out that seems to have fixed some of the printing problems


Re: EMF Calculation - No Inverted V #EMF

Mike (G4HGV)
 

New version 11b now out that seems to have fixed some of the printing problems


Re: EMF Calculation - No Inverted V #EMF

Den (M0ACM)
 

Telling lies again !... THIS is the final final final on this (mis-named!) collinear thread !!...

I've checked the Diamond specs. 
The V2000 is advertised with a gain of 2.15dBi on 50 megs.

I have added that to the RSGB table for the "collinear" (since the other two bands' gains match the Diamond specs for 2 and 70) and, in true allegiance  to last night's format, I copy below the appropriate data screen grabs which I trust will zoom up OK when you extract them.
(Just in case: 6m FM 100W 50% TX;RX; 15m of RG213; Collinear, Vertical at 5.5m agl; zero extra attenuation.) 
image.png
As you see below, the results come back requiring zero horizontal separation and an EZ vertical of 2.7 metres.
Since the base of your ant is at 5.5metres you have 3.7 metres "spare" vertical capacity to go standing on (but not falling offt!) ladders etc!!
image.png
Right NOW it's coffee !!

73

Den

On Fri, 22 Oct 2021 at 01:50, Dom (2E0WHQ) <domwilko@...> wrote:
Thanks Den,

I was just trying to get ahead of the game by checking my HF antennas. I'm fine with my current 2m/70cm Colinear setup, mainly due to my Diamond V2000 antenna being 5.5m up on a scaffold pole half way down the garden. Curiously though, the calculator won't allow me to use the same Colinear antenna for 6m. It asks me to 'use different antenna'. The V2000 is a tri-band Colinear covering 70cm, 2m and 6m, but the calculator won't allow you to use a Colinear for 6m.



If I continue with the Colinear, it says I'm compliant based on height, as does the calculation if I use a Vertical Dipole as the 6m antenna.

Whilst the calculator is good, it's clear that there are still quite a few issues with it. I'm sure they'll get ironed out over time.

73

Dom.


Re: EMF Calculation - No Inverted V #EMF

Den (M0ACM)
 

Dom,

A final final on this thread (!) I have just delved into the data tables using a recent version (but not 11a) of  the RSGB calc and confirm that "generic" (but not manufacturer/model specific) data is used by the table. 

The gain figures used for 2m and 70cm for the "collinear" option are 6.5dBi and 8dBi respectively and the data for 2m, 70cms and 23cms (!)  for the "big collinear" are 8.3dBi, 11dBi and 14.8dBi.

To clarify re the "use different ant" message, the calculator looks at the gain returned from the tables after you choose the antenna. 
If the gain comes back as "1", it sees that as not having found a "real" gain figure in the lookup table and pops up the "use different ant" message to advise that any results figures will not be reliable. 

Ok, coffee time !

73

Den


On Fri, 22 Oct 2021 at 10:23, Den (M0ACM) via groups.io <denf.acm=gmail.com@groups.io> wrote:
Dom,
I have just done a run on the IcnirpCalc and attach results page for 6M for the V2000.
I have assumed some pretty 'standard' condx with 15m of RG213 and an ant height of 5m
Mode FM and 50% TX:RX with 100W from TX
You will see it suggests a "Safety Distance" (EZ) of 1.68m.
144MHz with the same setup advises an EZ of 2.52m
Hope that helps
Den

image.png
image.png

On Fri, 22 Oct 2021 at 01:50, Dom (2E0WHQ) <domwilko@...> wrote:
Thanks Den,

I was just trying to get ahead of the game by checking my HF antennas. I'm fine with my current 2m/70cm Colinear setup, mainly due to my Diamond V2000 antenna being 5.5m up on a scaffold pole half way down the garden. Curiously though, the calculator won't allow me to use the same Colinear antenna for 6m. It asks me to 'use different antenna'. The V2000 is a tri-band Colinear covering 70cm, 2m and 6m, but the calculator won't allow you to use a Colinear for 6m.



If I continue with the Colinear, it says I'm compliant based on height, as does the calculation if I use a Vertical Dipole as the 6m antenna.

Whilst the calculator is good, it's clear that there are still quite a few issues with it. I'm sure they'll get ironed out over time.

73

Dom.


Re: EMF Calculation - No Inverted V #EMF

Den (M0ACM)
 

Dom,
I have just done a run on the IcnirpCalc and attach results page for 6M for the V2000.
I have assumed some pretty 'standard' condx with 15m of RG213 and an ant height of 5m
Mode FM and 50% TX:RX with 100W from TX
You will see it suggests a "Safety Distance" (EZ) of 1.68m.
144MHz with the same setup advises an EZ of 2.52m
Hope that helps
Den

image.png
image.png

On Fri, 22 Oct 2021 at 01:50, Dom (2E0WHQ) <domwilko@...> wrote:
Thanks Den,

I was just trying to get ahead of the game by checking my HF antennas. I'm fine with my current 2m/70cm Colinear setup, mainly due to my Diamond V2000 antenna being 5.5m up on a scaffold pole half way down the garden. Curiously though, the calculator won't allow me to use the same Colinear antenna for 6m. It asks me to 'use different antenna'. The V2000 is a tri-band Colinear covering 70cm, 2m and 6m, but the calculator won't allow you to use a Colinear for 6m.



If I continue with the Colinear, it says I'm compliant based on height, as does the calculation if I use a Vertical Dipole as the 6m antenna.

Whilst the calculator is good, it's clear that there are still quite a few issues with it. I'm sure they'll get ironed out over time.

73

Dom.


Re: EMF Calculation - No Inverted V #EMF

Den (M0ACM)
 

At a suitable point, I will again email John and update him with Members'discoveries.

However since the Pre November deadline is 110 Megs and up, I think he would appreciate resolving any final final data table issues in those bands before moving to infill matters in "Phase 2" - (10-110megs).

Thanks for feedback. Glad the approach 'worked'.

73





-------- Original message --------
From: "James (M1DST)" <james@...>
Date: 22/10/2021 9:38 am (GMT+00:00)
To: sdarc@groups.io
Subject: Re: [sdarc] EMF Calculation - No Inverted V #EMF

As I said last night Den, I thoroughly enjoyed the topic.  Thanks again for doing all the leg work to make it understandable for the masses.

You indicate you have a list of issues...  Is that an internal list or are you feeding it back to the RSGB?

James

On Fri, 22 Oct 2021 at 09:33, Den (M0ACM) <denf.acm@...> wrote:
Noted the V2000 anomaly at 50megs.
I will add it the list of issues noted.

You are absolutely right, the V2000 should do 6 (and 10 ?).

I think the achilles heel of the whole calc situation is going to be the behind the scenes data used to set up the aerial gain data.

It might be well worth downloading the Thilo Kootz model and checking both 2m and 6m for the V2000 with his calc as I am pretty certain HIS tables will include that collinear on 6.

If the 2m figs tie up with rsgb/ofcom, I think you would be well safe accepting his 6m results too (with a suitable note to that effect in your explanation record.

73



-------- Original message --------
From: "Den (M0ACM) via groups.io" <denf.acm=gmail.com@groups.io>
Date: 22/10/2021 1:09 am (GMT+00:00)
Subject: Re: [sdarc] EMF Calculation - No Inverted V #EMF

Hi Dom.

Though I haven't done the calc run, I can confirm that there is AS YET no PAC for the 20m dipole/inv V. 

I will have a look when I wake up properly.... nodded off watching a film till my phone went bing !

Two initial thoughts come to mind...

1. I am pretty sure that a PAC will appear in due time for a whole variety of "typical" aerial set ups. JAV and Co really are working hard on their modelling activities and PACs seem to be a priority with them as I read between the lines. I think they went for the low bands initially as a proof of concept to Ofcom in an area where, as some would see it, Ofcom are struggling to articulate the Guidance. That accepted they are now free to replicate this concept to other bands and setups.

2. Assessing at 20 metres is not a current priority. We have until next spring to complete docs for frequencies from 10 to 110 MHz, so my humble suggestion at present would be to do 144MHz and up and leave HF for a while and see what emerges to assist.

Hope that helps.

...and thanks for your feedback on this evening. It was a challenge to pack something as 'involved' and critical to us all into a Talk evening without racing at such a pace as to leave everyone MORE confused than they were when they came in! 

73

Den




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