Date   

Re: Steel box section masts

John Lemay
 

Noel

 

I think a more appropriate question is to consider whether the roof rack is strong enough. It’s likely to be made of much smaller material than 60 x 60mm and could be the weak point in your proposals.

 

To answer your question about size and wall thickness, an increase in bending strength is best achieved by increasing the size and using the same wall thickness. But the limitation on this is that the wall must not be so thin as to be flexible because it will fail by crushing.

 

60 x 60 x 3mm box steel is pretty substantial and in my opinion will serve your purpose well. If you place such a large load on the top that the pole bends, you will in any case find it very difficult to raise from the horizontal position.

 

What will you do at the base of the pole to keep it all upright ? It will need a restraint and just sticking it in the dirt won’t suffice.

 

Chris’s suggestion about a truss is useful. A lattice section is stronger for the same weight of material, but more costly unless you can find something which is second hand, or scrap from a longer section that got bent.

 

Hope this helps.

 

John G4ZTR

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: Monday, November 14, 2016 13:36
To: ukmicrowaves@...
Subject: [ukmicrowaves] Steel box section masts

 

 

I’m currently reworking my VHF/UHF & microwave /p system based around a Land Rover and wonder if it is practical to use standard steel box section (preferably galvanised) as a single mast section with rotator and antennas / transverter on top (using box section rather than pole gets over problems of it rotating when being raised / lowered).

I’m thinking of using a 60 * 60 * 3 mm steel section about 5 metres long which would be mounted / pivoted at about 1.8 mts off the ground on the roof rack.  1.8 mts of pole would be extended beyond the roof rack when on site and used to pull up the remaining 2.8 mts to the base of the rotator above the pivot point.

I am not that mechanically minded, but looking at various commercial systems it would appear that the mast would be stable enough once raised (my own tennamast has a 40*60 top section), but the big question I have is whether it would actually strong enough or would it bend with the head load during raising and lowering process.  If yes, then what can I do – increase the box section size or is it better to increase the wall thickness or what?  Any help / advice / alternative solutions appreciated – and where can I buy galvanised box section in 5mt lengths?

73 Noel – G8GTZ


Re: Steel box section masts

Christopher Bartram <cbartram@...>
 

Hello Noel

An idea which doesn't seem to have caught-on, but which I think should, is to use 'trussing': these are the lattice mast sections which are used by stage lighting and PA rigs. A look through the CPC catalogue will give you a lot more information than I could.

A very useful - and nice - guy to talk to about fabricating bits of antenna support hardware from steel is Brian at Barenco <www.barenco.co.uk>

73

Chris


On 14/11/16 13:36, 'Noel Matthews' noel@... [ukmicrowaves] wrote:

Im currently reworking my VHF/UHF & microwave /p system based around a Land Rover and wonder if it is practical to use standard steel box section (preferably galvanised) as a single mast section with rotator and antennas / transverter on top (using box section rather than pole gets over problems of it rotating when being raised / lowered).

Im thinking of using a 60 * 60 * 3 mm steel section about 5 metres long which would be mounted / pivoted at about 1.8 mts off the ground on the roof rack. 1.8 mts of pole would be extended beyond the roof rack when on site and used to pull up the remaining 2.8 mts to the base of the rotator above the pivot point.

I am not that mechanically minded, but looking at various commercial systems it would appear that the mast would be stable enough once raised (my own tennamast has a 40*60 top section), but the big ! question I have is whether it would actually strong enough or would it bend with the head load during raising and lowering process. If yes, then what can I do increase the box section size or is it better to increase the wall thickness or what? Any help / advice / alternative solutions appreciated and where can I buy galvanised box section in 5mt lengths?

73 Noel G8GTZ




  


Steel box section masts

Noel G8GTZ
 

I’m currently reworking my VHF/UHF & microwave /p system based around a Land Rover and wonder if it is practical to use standard steel box section (preferably galvanised) as a single mast section with rotator and antennas / transverter on top (using box section rather than pole gets over problems of it rotating when being raised / lowered).

I’m thinking of using a 60 * 60 * 3 mm steel section about 5 metres long which would be mounted / pivoted at about 1.8 mts off the ground on the roof rack.  1.8 mts of pole would be extended beyond the roof rack when on site and used to pull up the remaining 2.8 mts to the base of the rotator above the pivot point.

I am not that mechanically minded, but looking at various commercial systems it would appear that the mast would be stable enough once raised (my own tennamast has a 40*60 top section), but the big question I have is whether it would actually strong enough or would it bend with the head load during raising and lowering process.  If yes, then what can I do – increase the box section size or is it better to increase the wall thickness or what?  Any help / advice / alternative solutions appreciated – and where can I buy galvanised box section in 5mt lengths?

73 Noel – G8GTZ


Re: Activity List for the UK Microwave Group Low Band Contest Sunday

Barry Lewis
 

Neil,
Well thanks for your efforts on 13cms and you can at least bask in the glory of being our best DX on 13cms on Sunday!
73
Barry 
As M0HNA/P



Sent from my Samsung Galaxy smartphone.


Re: Scottish Microwave Round Table

Mark
 

I’m more than happy to echo those sentiments. I diverted one of my normal trips back from Doha, Qatar via Edinburgh and had a very enjoyable visit to the GMRT.

 

I parted with some cash, learnt loads and met some very interesting people.

 

Thanks for putting the event on, certainly will be interested in attending in future years.

 

Mark

G0MGX

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 14 November 2016 09:55
To: ukmicrowaves@...
Subject: [ukmicrowaves] Scottish Microwave Round Table

 

 

I would publicly like to thank the organisers of the Scottish Microwave Round Table for a most enjoyable event. I hadn't managed to make it back since the first one some 5 or 6 years ago. I was pleased to see the same enthusiasm for the higher bands that I saw back then. Limiting the size of the event helps to retain the unique atmosphere of the GMRT.
I was extremely impressed by the 'microwave' dinner on Saturday evening. There was nothing microwaved in the quality of the food and presentation. Lovely!
Added to that was the musical entertainment from the 'Microwave Band', consisting of John, Nadine and Ian. Sadly Chris was unable to join the 'quartet' this year. I don't have a musical ear, but I did enjoy the traditional music and the ballad of the car for sale...........
Thank you, GM.

73 de Sam, Acting Chairman, UKuG

Sent tomorrow from my time machine


Scottish Microwave Round Table

SAM JEWELL
 

I would publicly like to thank the organisers of the Scottish Microwave Round Table for a most enjoyable event. I hadn't managed to make it back since the first one some 5 or 6 years ago. I was pleased to see the same enthusiasm for the higher bands that I saw back then. Limiting the size of the event helps to retain the unique atmosphere of the GMRT.
I was extremely impressed by the 'microwave' dinner on Saturday evening. There was nothing microwaved in the quality of the food and presentation. Lovely!
Added to that was the musical entertainment from the 'Microwave Band', consisting of John, Nadine and Ian. Sadly Chris was unable to join the 'quartet' this year. I don't have a musical ear, but I did enjoy the traditional music and the ballad of the car for sale...........
Thank you, GM.

73 de Sam, Acting Chairman, UKuG





Sent tomorrow from my time machine


Re: Wednesday night 23cm Digifest

Martin A Hall <gorrell77@...>
 

Hi Neil,
 
I like the principle behind your suggestion, although I would suggest a minor change.  As far as I’m aware I’m the only “northerly GM” active on 23cm, and suggest that if you have a “slot” for this area it is right at the start – evenings are not good for suitable aircraft movements, and drop off rapidly as the evening goes on - by 2130 they are normally down to one or two per hour, so the earlier the better.  Having written that, I have to mention that unfortunately I usually work  Tuesday, Wednesday and Thursday evenings, so am not normally available.
 
I’ll be delighted to try QSO’s with anyone in AS range, which is as far south as IOx3 if you have a reasonable take-off to the north, and at least as far south as IOx2 if you have a very good take-off my way (better under enhanced conditions), with daytimes being best simply due to a greater probability of suitable aircraft, and my availability.  Happy to set up skeds, and will announce on this reflector when I am in or around the shack.  My broadband does get up to 2 Mbs at times, so KST works, and if I’m around you’ll also find me on the Microwave chat.
 
CQs are usually hopeless from here on 23cm, though I’m happy to put out a signal on request in a particular direction.
 
Good to meet quite a few members of this reflector in Burntisland at the GMRT and have a chat.
 
73,
Martin
GM8IEM – IO78HF
 

From: Neil neil@... [ukmicrowaves]
Sent: Saturday, November 12, 2016 1:03 PM
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest
 

Hi Simon, sounds good. Perhaps best to announce on the reflector about a firm operating schedule with times, modes, frequencies and beam headings, a few days ahead, it would gives others an indication of where to find us and whether there is a chance we'll be beaming their way.  The schedule doesn't need to be as specific as this, but for those without KST access, it would be very hard work to know when best to look for me.

So if I was planning a long evening on 23cm, I might say something like:

G4DBN IO93NR08  23cm 250W/18dB KST or 07777 999999
11 Nov 19:00-19:15 1296.165/168 JT4F 1st QTF 180-220
11 Nov 19:30-19:45 1296.200/185 USB QTF 90-140
11 Nov 20:00-20:15 listening 1296.150 to 1296.300 QTF 135 to 270
11 Nov 20:15-20:30 listening 1296.150 to 1296.300 QTF 270 to 360
11 Nov 21:00-21:30 1296.060 CW odd mins QTF 300-330
11 Nov 21:30-22:00 1296.168 MSK144/15 1st QTF 345

Then the more northerly GMs would probably be best trying from 21:30, and EUs from 19:15. First frequency is where I'd call CQ, with a QSY to the other frequency if I'm on a calling channel (same as commonly used for MS).  For the JT4F, I'll transmit first period with 1 minute periods. For MSK144, 1st period in 15 second cycles. For CW, I'll transmit a CQ during odd minutes and listen during even minutes, so others can call even if they haven't heard me yet. Where I give a range of beam headings, I would swing in 5 degree steps for each period during the CQ. 

During the listen-only periods I would monitor and record a 192kHz segment of the band and watch the waterfall while the rotator pans back and forth, so that would be a good time to beam my way and call me.

Skeds via KST preferred, so others can see any variances from the plan, or via SMS text for those without KST or KST2me.

Changes to the schedule would also be announced on KST, and I'd put out a KST message announcing each change as listed, something like:

+++ CQ 1296.168 MSK144/15 1st QTF 345 +++

All sounds terribly organised, but with very tight beam patterns on UHF/SHF, general CQs are hopeless.  Giving advance warning via the reflector would ensure that others can plan ahead, with KST for more immediate skeds/notifications.

Neil G4DBN

From: ukmicrowaves@... [mailto:ukmicrowaves@...]

Sent: Saturday, November 12, 2016 01:20
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

Thanks all for comments

In future I will post on this reflector and KST (When flaky broadband allows – penalty of living in a rural area).

May I humbly suggest that if you are in the shack, and as the JT modes are MG, some CQ calls may be responded to.

I set up the system to-night on 23 calling CQ – no response.

I hesitate to make the following comment -  If those of us who are around during daylight hours turn on our Transmitters it may, in the future, assist in protecting our band allocations.

To quote from G3PHO  “ A Thousand receivers make no noise”

73s

Simon

G8ATB

From: Neil neil@... [ukmicrowaves]

Sent: Friday, November 11, 2016 8:14 PM

To: ukmicrowaves@...

Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

It is certainly worth a try, particularly if you can aim end-on to a set of planes on a glide-path or a busy route. I find I get best scatter results from distant 23/13cm beacons when the planes are actually BEYOND the beacon, so i ins't scatter as such, but a reflection.  I get good reflections from GB3DUN and GB3ZME and Martlesham even when there are no planes between me and the beacon, but plenty to the south of them.  Lots of experimentation needed to determine exactly what is going on I think!

Happy to do a test almost any time so long as I get a bit of notice, working from home most of the time at present, so I am available at coffee breaks and lunch and most evenings.

Neil G4DBN

On 11/11/2016 20:04, Edward Harland g3vpf@... [ukmicrowaves] wrote:

 

Neil

I'm in IO80 square just west of Weymouth. Regrettably I am the wrong side of the Ridgeway which is very close and 200 metres higher, so I suspect my only hope is aircraft scatter. I have 40 Watts to a 23 element yagi at present, although this is about to be upgraded to a 44 ele. I hope to be on next wednesday receive-only to see if any signals get down this far.

Will take a read on MSK144 and see what needs to be done to get the transmit side working.

Ed G3VPF




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Re: Wednesday night 23cm Digifest

simonchettle
 

Hi All
 
Following on from Neil’s example below is my personal availability schedule (yes I know I must lead sad life).  I will be both monitoring and TXing throughout these periods.  When possible I will announce on KST. 
Presently I am unable to beam West due to neibours 30ft (and growing) hedge until I move the mast.
 
 

Operating Schedule

 

Band: 23cms

Frequency:  1296.165M

Mode: JT 65C  TXing on the even Minute.

Initial Beam Heading:   SE

 

Time in the Shack:

 

Mondays         14:00 – 16:00,   20:00 – 21:00,  23:00 – 00:00.

Tuesdays         14:00 – 16:00,   23:00 – 00:00.

Wednesdays    14:00 – 16:00.  

Thursdays        14:00 – 16:00,   20:00 – 21:00,  23:00 – 00:00.

Fridays            14:00 – 16:00,   20:00 – 21:00,  23:00 – 00:00.

Saturdays        23:00 – 00:00.

Sundays          14:00 – 16:00,   20:00 – 21:00,  23:00 – 00:00.

 

These are the most probable times however subject to domestic requirements
 
Hope to contact people on a more random basis
 
73s
 
Simon
 
 
 
 
 
 

From: Neil neil@... [ukmicrowaves]
Sent: Saturday, November 12, 2016 1:03 PM
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest
 
 

Hi Simon, sounds good. Perhaps best to announce on the reflector about a firm operating schedule with times, modes, frequencies and beam headings, a few days ahead, it would gives others an indication of where to find us and whether there is a chance we'll be beaming their way.  The schedule doesn't need to be as specific as this, but for those without KST access, it would be very hard work to know when best to look for me.

So if I was planning a long evening on 23cm, I might say something like:

G4DBN IO93NR08  23cm 250W/18dB KST or 07777 999999
11 Nov 19:00-19:15 1296.165/168 JT4F 1st QTF 180-220
11 Nov 19:30-19:45 1296.200/185 USB QTF 90-140
11 Nov 20:00-20:15 listening 1296.150 to 1296.300 QTF 135 to 270
11 Nov 20:15-20:30 listening 1296.150 to 1296.300 QTF 270 to 360
11 Nov 21:00-21:30 1296.060 CW odd mins QTF 300-330
11 Nov 21:30-22:00 1296.168 MSK144/15 1st QTF 345

Then the more northerly GMs would probably be best trying from 21:30, and EUs from 19:15. First frequency is where I'd call CQ, with a QSY to the other frequency if I'm on a calling channel (same as commonly used for MS).  For the JT4F, I'll transmit first period with 1 minute periods. For MSK144, 1st period in 15 second cycles. For CW, I'll transmit a CQ during odd minutes and listen during even minutes, so others can call even if they haven't heard me yet. Where I give a range of beam headings, I would swing in 5 degree steps for each period during the CQ. 

During the listen-only periods I would monitor and record a 192kHz segment of the band and watch the waterfall while the rotator pans back and forth, so that would be a good time to beam my way and call me.

Skeds via KST preferred, so others can see any variances from the plan, or via SMS text for those without KST or KST2me.

Changes to the schedule would also be announced on KST, and I'd put out a KST message announcing each change as listed, something like:

+++ CQ 1296.168 MSK144/15 1st QTF 345 +++

All sounds terribly organised, but with very tight beam patterns on UHF/SHF, general CQs are hopeless.  Giving advance warning via the reflector would ensure that others can plan ahead, with KST for more immediate skeds/notifications.

Neil G4DBN

From: ukmicrowaves@... [mailto:ukmicrowaves@...]

Sent: Saturday, November 12, 2016 01:20
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

Thanks all for comments

In future I will post on this reflector and KST (When flaky broadband allows – penalty of living in a rural area).

May I humbly suggest that if you are in the shack, and as the JT modes are MG, some CQ calls may be responded to.

I set up the system to-night on 23 calling CQ – no response.

I hesitate to make the following comment -  If those of us who are around during daylight hours turn on our Transmitters it may, in the future, assist in protecting our band allocations.

To quote from G3PHO  “ A Thousand receivers make no noise”

73s

Simon

G8ATB

From: Neil neil@... [ukmicrowaves]

Sent: Friday, November 11, 2016 8:14 PM

To: ukmicrowaves@...

Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

It is certainly worth a try, particularly if you can aim end-on to a set of planes on a glide-path or a busy route. I find I get best scatter results from distant 23/13cm beacons when the planes are actually BEYOND the beacon, so i ins't scatter as such, but a reflection.  I get good reflections from GB3DUN and GB3ZME and Martlesham even when there are no planes between me and the beacon, but plenty to the south of them.  Lots of experimentation needed to determine exactly what is going on I think!

Happy to do a test almost any time so long as I get a bit of notice, working from home most of the time at present, so I am available at coffee breaks and lunch and most evenings.

Neil G4DBN

On 11/11/2016 20:04, Edward Harland g3vpf@... [ukmicrowaves] wrote:

 

Neil

I'm in IO80 square just west of Weymouth. Regrettably I am the wrong side of the Ridgeway which is very close and 200 metres higher, so I suspect my only hope is aircraft scatter. I have 40 Watts to a 23 element yagi at present, although this is about to be upgraded to a 44 ele. I hope to be on next wednesday receive-only to see if any signals get down this far.

Will take a read on MSK144 and see what needs to be done to get the transmit side working.

Ed G3VPF




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Re: Activity List for the UK Microwave Group Low Band Contest Sunday 13th November

Neil Smith G4DBN
 

.... that time when some of the blue paint on the 13cm masthead relay has gone brown and both contacts are now open circuit.....

Called out to work again this morning, so started very late. Fired up on 13cm with full steam for a smoke test, forgetting that the BIG relay was on the 23cm kit, and the PSU was set to 30V.  Something well over 120W into one of those weeny SMA jobs.  Hmmmm.  FET current went up for a couple of seconds, then dropped from the usual 45A.  Quick flip back to receive.  No signals on 13, and the dump resistor in the PA isolator was very very hot. Checked PA, filter, isolator, all good. Dropped the mast, found the still-hot relay decided, it was dead, swapped the 9cm relay for the 13cm one and managed ONE QSO on 13cm just before the end of the session.  Also a few on 23cm.  Time for a rebuild, and back to a single Spectrian until I find another big relay....  Good fun this ham radio stuff.

Neil G4DBN





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Re: Mutek 432e

GORDONJ REASON <gordonj.reason@...>
 

The cost is nothing ... 

On 12 November 2016 at 20:53 "'Keith D. Le Boutillier' keithl@... [ukmicrowaves]" <ukmicrowaves@...> wrote:

 

 

Hi Gordon

 

Many thanks for putting a Fet in the post for me it is much appreciated.

Please let me know the cost and I will reimburse you.

 

Many thanks

 

Keith GU6EFB

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 12 November 2016 18:40
To: ukmicrowaves
Subject: Re: [ukmicrowaves] Re: Mutek 432e

 

 

A Fet in the post for you ! 

Best Wishes , Gordon .

The stamps were given to me .......!

It should work well if you use it ..... please let me know .......... 

On 12 November 2016 at 09:26 "keithl@... [ukmicrowaves]" <ukmicrowaves@...> wrote:

 

 

Hi Group

 

Many thanks to Chris and all who responded with help and advice on a suitable gasfet to replace the one that has failed in this pre-amp

I will now source a suitable replacement on Monday.

 

Thanks again.

 

73 Keith GU6EFB 

 


 


 

 

 


 


 


Re: Mutek 432e

Keith D. Le Boutillier <keithl@...>
 

Hi Gordon

 

Many thanks for putting a Fet in the post for me it is much appreciated.

Please let me know the cost and I will reimburse you.

 

Many thanks

 

Keith GU6EFB

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 12 November 2016 18:40
To: ukmicrowaves
Subject: Re: [ukmicrowaves] Re: Mutek 432e

 

 

A Fet in the post for you ! 

Best Wishes , Gordon .

The stamps were given to me .......!

It should work well if you use it ..... please let me know .......... 

On 12 November 2016 at 09:26 "keithl@... [ukmicrowaves]" <ukmicrowaves@...> wrote:

 

 

Hi Group

 

Many thanks to Chris and all who responded with help and advice on a suitable gasfet to replace the one that has failed in this pre-amp

I will now source a suitable replacement on Monday.

 

Thanks again.

 

73 Keith GU6EFB 

 


 


 


Re: Mutek 432e

GORDONJ REASON <gordonj.reason@...>
 

A Fet in the post for you ! 

Best Wishes , Gordon .

The stamps were given to me .......!

It should work well if you use it ..... please let me know .......... 

On 12 November 2016 at 09:26 "keithl@... [ukmicrowaves]" <ukmicrowaves@...> wrote:

 

 

Hi Group

 

Many thanks to Chris and all who responded with help and advice on a suitable gasfet to replace the one that has failed in this pre-amp

I will now source a suitable replacement on Monday.

 

Thanks again.

 

73 Keith GU6EFB 

 


 


 


Re: Mutek 432e

Dr. David Kirkby - Kirkby Microwave Ltd <drkirkby@...>
 

On 11/12/16 09:26 AM, keithl@lebs.org.uk [ukmicrowaves] wrote:
Hi Group
Many thanks to Chris and all who responded with help and advice on a suitable gasfet to replace the one that has failed in this pre-amp
I will now source a suitable replacement on Monday.
Thanks again.
73 Keith GU6EFB
I would avoid eBay, especially if from China, since there are far too many counterfeit semiconductors on eBay.

--
Dr. David Kirkby Ph.D CEng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT, UK.
Registered in England and Wales, company number 08914892.
http://www.kirkbymicrowave.co.uk/
Tel: 07910 441670 / +44 7910 441670 (0900 to 2100 GMT only please)


Re: Wednesday night 23cm Digifest

Neil Smith G4DBN
 

Hi Simon, sounds good. Perhaps best to announce on the reflector about a firm operating schedule with times, modes, frequencies and beam headings, a few days ahead, it would gives others an indication of where to find us and whether there is a chance we'll be beaming their way.  The schedule doesn't need to be as specific as this, but for those without KST access, it would be very hard work to know when best to look for me.

So if I was planning a long evening on 23cm, I might say something like:

G4DBN IO93NR08  23cm 250W/18dB KST or 07777 999999
11 Nov 19:00-19:15 1296.165/168 JT4F 1st QTF 180-220
11 Nov 19:30-19:45 1296.200/185 USB QTF 90-140
11 Nov 20:00-20:15 listening 1296.150 to 1296.300 QTF 135 to 270
11 Nov 20:15-20:30 listening 1296.150 to 1296.300 QTF 270 to 360
11 Nov 21:00-21:30 1296.060 CW odd mins QTF 300-330
11 Nov 21:30-22:00 1296.168 MSK144/15 1st QTF 345

Then the more northerly GMs would probably be best trying from 21:30, and EUs from 19:15. First frequency is where I'd call CQ, with a QSY to the other frequency if I'm on a calling channel (same as commonly used for MS).  For the JT4F, I'll transmit first period with 1 minute periods. For MSK144, 1st period in 15 second cycles. For CW, I'll transmit a CQ during odd minutes and listen during even minutes, so others can call even if they haven't heard me yet. Where I give a range of beam headings, I would swing in 5 degree steps for each period during the CQ. 

During the listen-only periods I would monitor and record a 192kHz segment of the band and watch the waterfall while the rotator pans back and forth, so that would be a good time to beam my way and call me.

Skeds via KST preferred, so others can see any variances from the plan, or via SMS text for those without KST or KST2me.

Changes to the schedule would also be announced on KST, and I'd put out a KST message announcing each change as listed, something like:

+++ CQ 1296.168 MSK144/15 1st QTF 345 +++

All sounds terribly organised, but with very tight beam patterns on UHF/SHF, general CQs are hopeless.  Giving advance warning via the reflector would ensure that others can plan ahead, with KST for more immediate skeds/notifications.

Neil G4DBN

From: ukmicrowaves@... [mailto:ukmicrowaves@...]

Sent: Saturday, November 12, 2016 01:20
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

Thanks all for comments

 

In future I will post on this reflector and KST (When flaky broadband allows – penalty of living in a rural area).

 

May I humbly suggest that if you are in the shack, and as the JT modes are MG, some CQ calls may be responded to.

 

I set up the system to-night on 23 calling CQ – no response.

 

I hesitate to make the following comment -  If those of us who are around during daylight hours turn on our Transmitters it may, in the future, assist in protecting our band allocations.

To quote from G3PHO  “ A Thousand receivers make no noise”

 

73s

Simon

G8ATB

 

 

From: Neil neil@... [ukmicrowaves]

Sent: Friday, November 11, 2016 8:14 PM

Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

It is certainly worth a try, particularly if you can aim end-on to a set of planes on a glide-path or a busy route. I find I get best scatter results from distant 23/13cm beacons when the planes are actually BEYOND the beacon, so i ins't scatter as such, but a reflection.  I get good reflections from GB3DUN and GB3ZME and Martlesham even when there are no planes between me and the beacon, but plenty to the south of them.  Lots of experimentation needed to determine exactly what is going on I think!

Happy to do a test almost any time so long as I get a bit of notice, working from home most of the time at present, so I am available at coffee breaks and lunch and most evenings.

Neil G4DBN

 

On 11/11/2016 20:04, Edward Harland g3vpf@... [ukmicrowaves] wrote:

 

Neil

 

I'm in IO80 square just west of Weymouth. Regrettably I am the wrong side of the Ridgeway which is very close and 200 metres higher, so I suspect my only hope is aircraft scatter. I have 40 Watts to a 23 element yagi at present, although this is about to be upgraded to a 44 ele. I hope to be on next wednesday receive-only to see if any signals get down this far.

 

Will take a read on MSK144 and see what needs to be done to get the transmit side working.

 

Ed G3VPF

 




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Re: Wednesday night 23cm Digifest

Tony G4NBS
 

Totally Agree Simon which is why I started asking if there was a frequency for MGM so that random QSO might happen rather than being tied to the internet. 
Seems 165 has been unofficially adopted for 2m and up. I've got feeder issues at the moment so only able to be on a couple of bands and use transverters so can only monitor one band for noise.  Advanced notice via this media would definitely increase likelihood of success. Good luck and hope to see you!
73
Tony. G4NBS


On 12 Nov 2016, at 09:03, Sam Jewell jewell@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

And some of us are in GM for the Round Table.
Sam, G4DDK



On 12 Nov 2016, at 08:39, 'John Lemay' john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Simon

 

I sympathise with your unanswered CQ calls, but ………..

 

I didn’t know that you were calling, I didn’t know on what frequency, I didn’t know where you were beaming …. Etc.

 

Finding QSO partners on 23cms (and above) is quite a needle-in-a-haystack job, and we need all the help we can get to make successful contacts. Given that your internet connection is poor, I think your best bet is a prior announcement of your intentions on this reflector, rather in the way that John G4BAO set out the proposals for a Digifest. Given a bit of advance warning, and hopefully a few emails from people who will look your way, the success rate will improve.

 

Regards

 

John G4ZTR

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: Saturday, November 12, 2016 01:20
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

Thanks all for comments

 

In future I will post on this reflector and KST (When flaky broadband allows – penalty of living in a rural area).

 

May I humbly suggest that if you are in the shack, and as the JT modes are MG, some CQ calls may be responded to.

 

I set up the system to-night on 23 calling CQ – no response.

 

I hesitate to make the following comment -  If those of us who are around during daylight hours turn on our Transmitters it may, in the future, assist in protecting our band allocations.

To quote from G3PHO  “ A Thousand receivers make no noise”

 

73s

Simon

G8ATB

 

 

From: Neil neil@... [ukmicrowaves]

Sent: Friday, November 11, 2016 8:14 PM

Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

It is certainly worth a try, particularly if you can aim end-on to a set of planes on a glide-path or a busy route. I find I get best scatter results from distant 23/13cm beacons when the planes are actually BEYOND the beacon, so i ins't scatter as such, but a reflection.  I get good reflections from GB3DUN and GB3ZME and Martlesham even when there are no planes between me and the beacon, but plenty to the south of them.  Lots of experimentation needed to determine exactly what is going on I think!

Happy to do a test almost any time so long as I get a bit of notice, working from home most of the time at present, so I am available at coffee breaks and lunch and most evenings.

Neil G4DBN

 

On 11/11/2016 20:04, Edward Harland g3vpf@... [ukmicrowaves] wrote:

 

Neil

 

I'm in IO80 square just west of Weymouth. Regrettably I am the wrong side of the Ridgeway which is very close and 200 metres higher, so I suspect my only hope is aircraft scatter. I have 40 Watts to a 23 element yagi at present, although this is about to be upgraded to a 44 ele. I hope to be on next wednesday receive-only to see if any signals get down this far.

 

Will take a read on MSK144 and see what needs to be done to get the transmit side working.

 

Ed G3VPF

 




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Re: Activity List for the UK Microwave Group Low Band Contest Sunday 13th November

Derek Brown G8ECI
 

Good morning all,

I will try and be QRV from JO03,

Although only having 10 Watts at the ant socket so far and also need to get the Pre Amp sequencer finished.

If I am able to get on, will anounce intention on ON4KST

Otherwise details are#

G8ECI Qth JO03AI

23cm 10 Watts 23 Ele Tonna (Seen better days)

73 es dx 


On Saturday, 12 November 2016, 9:31, "G3XDY g3xdy@... [ukmicrowaves]" wrote:


 
Thanks for your inputs, here is the activity list for tomorrow's contest
on 1.3, 2.3 and 3.4GHz, which runs from 1000-1400. Full rules are here:

http://www.microwavers.org/files/2016-mwrules.pdf

Best of luck to all taking part. This is the final event of 2016 and I
aim to get the results and overall table for the year into December's
Scatterpoint.

73

John G3XDY
UKuG Contest Manager

Callsign: G3UKV
Locator: IO82RR
Bands: 1.3, 2.3 and 3.4 towards the end. (swapping feeds with 2.3G)
Talkback: 2m SSB (preferred), KST and 1.3G also direct.

Callsign: G4ZTR
Locator: JO01KW
Bands: 1.3GHz, 200w, 2 x 60 el
Talkback: Direct CQ and ON4KST

Callsign: G4DBN
Locator: IO93NR08
Bands: 1.3GHz 250W 44-ele
2.3GHz 60W 1m dish or 40-ele (2320 and 2300)
3.4GHz 16W 1m dish
Talkback: KST or 2m SSB
Times: whole session

Callsign: G1DFL/P
Locator: IO91NM
1.3GHz 10W 44Y WiMo
2.3GHz 1W 60cm Offset with WA5VJB feed
Talkback: 144.175MHz SSB, direct CQ on 1.3GHz, ON4KST, and 07713 432632
Times: The last hour - 1pm to 2pm only.

Callsign: M0HNA/P
Locator: IO91RF
Bands: 1.3GHz 250W 67ele
2.3GHz 60W 0.9m dish
3.4GHz 15W 0.75m dish
Talkback: direct CQ on 1.3GHz, ON4KST (23cm M0HNA-1, 9&13cm M0HNA-2)

Callsign: M0XIG
Locator: IO90mx
Band 1.3 GHz 10w Tonna 55 ele Yagi
Talkback ON4KST direct CQ on 1.3GHz Tel No: 07780992564
Times: Various throughout

Callsign: G3XDY
Locator: JO02OB
Bands: 1.3GHz 400W 4 x 23ele Yagi
2.3GHz 100W 0.8m dish
3.4GHz 20W 0.8m dish
Talkback: ON4KST, direct CQ on 1.3GHz
Times: Up to 1230

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Activity List for the UK Microwave Group Low Band Contest Sunday 13th November

John Quarmby
 

Thanks for your inputs, here is the activity list for tomorrow's contest on 1.3, 2.3 and 3.4GHz, which runs from 1000-1400. Full rules are here:

http://www.microwavers.org/files/2016-mwrules.pdf

Best of luck to all taking part. This is the final event of 2016 and I aim to get the results and overall table for the year into December's Scatterpoint.

73

John G3XDY
UKuG Contest Manager

Callsign: G3UKV
Locator: IO82RR
Bands: 1.3, 2.3 and 3.4 towards the end. (swapping feeds with 2.3G)
Talkback: 2m SSB (preferred), KST and 1.3G also direct.

Callsign: G4ZTR
Locator: JO01KW
Bands: 1.3GHz, 200w, 2 x 60 el
Talkback: Direct CQ and ON4KST

Callsign: G4DBN
Locator: IO93NR08
Bands: 1.3GHz 250W 44-ele
2.3GHz 60W 1m dish or 40-ele (2320 and 2300)
3.4GHz 16W 1m dish
Talkback: KST or 2m SSB
Times: whole session

Callsign: G1DFL/P
Locator: IO91NM
1.3GHz 10W 44Y WiMo
2.3GHz 1W 60cm Offset with WA5VJB feed
Talkback: 144.175MHz SSB, direct CQ on 1.3GHz, ON4KST, and 07713 432632
Times: The last hour - 1pm to 2pm only.

Callsign: M0HNA/P
Locator: IO91RF
Bands: 1.3GHz 250W 67ele
2.3GHz 60W 0.9m dish
3.4GHz 15W 0.75m dish
Talkback: direct CQ on 1.3GHz, ON4KST (23cm M0HNA-1, 9&13cm M0HNA-2)

Callsign: M0XIG
Locator: IO90mx
Band 1.3 GHz 10w Tonna 55 ele Yagi
Talkback ON4KST direct CQ on 1.3GHz Tel No: 07780992564
Times: Various throughout

Callsign: G3XDY
Locator: JO02OB
Bands: 1.3GHz 400W 4 x 23ele Yagi
2.3GHz 100W 0.8m dish
3.4GHz 20W 0.8m dish
Talkback: ON4KST, direct CQ on 1.3GHz
Times: Up to 1230


Re: Mutek 432e

keithl@...
 

Hi Group

 

Many thanks to Chris and all who responded with help and advice on a suitable gasfet to replace the one that has failed in this pre-amp

I will now source a suitable replacement on Monday.

 

Thanks again.

 

73 Keith GU6EFB 


Re: Wednesday night 23cm Digifest

SAM JEWELL
 

And some of us are in GM for the Round Table.
Sam, G4DDK



On 12 Nov 2016, at 08:39, 'John Lemay' john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Simon

 

I sympathise with your unanswered CQ calls, but ………..

 

I didn’t know that you were calling, I didn’t know on what frequency, I didn’t know where you were beaming …. Etc.

 

Finding QSO partners on 23cms (and above) is quite a needle-in-a-haystack job, and we need all the help we can get to make successful contacts. Given that your internet connection is poor, I think your best bet is a prior announcement of your intentions on this reflector, rather in the way that John G4BAO set out the proposals for a Digifest. Given a bit of advance warning, and hopefully a few emails from people who will look your way, the success rate will improve.

 

Regards

 

John G4ZTR

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: Saturday, November 12, 2016 01:20
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

Thanks all for comments

 

In future I will post on this reflector and KST (When flaky broadband allows – penalty of living in a rural area).

 

May I humbly suggest that if you are in the shack, and as the JT modes are MG, some CQ calls may be responded to.

 

I set up the system to-night on 23 calling CQ – no response.

 

I hesitate to make the following comment -  If those of us who are around during daylight hours turn on our Transmitters it may, in the future, assist in protecting our band allocations.

To quote from G3PHO  “ A Thousand receivers make no noise”

 

73s

Simon

G8ATB

 

 

From: Neil neil@... [ukmicrowaves]

Sent: Friday, November 11, 2016 8:14 PM

Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

It is certainly worth a try, particularly if you can aim end-on to a set of planes on a glide-path or a busy route. I find I get best scatter results from distant 23/13cm beacons when the planes are actually BEYOND the beacon, so i ins't scatter as such, but a reflection.  I get good reflections from GB3DUN and GB3ZME and Martlesham even when there are no planes between me and the beacon, but plenty to the south of them.  Lots of experimentation needed to determine exactly what is going on I think!

Happy to do a test almost any time so long as I get a bit of notice, working from home most of the time at present, so I am available at coffee breaks and lunch and most evenings.

Neil G4DBN

 

On 11/11/2016 20:04, Edward Harland g3vpf@... [ukmicrowaves] wrote:

 

Neil

 

I'm in IO80 square just west of Weymouth. Regrettably I am the wrong side of the Ridgeway which is very close and 200 metres higher, so I suspect my only hope is aircraft scatter. I have 40 Watts to a 23 element yagi at present, although this is about to be upgraded to a 44 ele. I hope to be on next wednesday receive-only to see if any signals get down this far.

 

Will take a read on MSK144 and see what needs to be done to get the transmit side working.

 

Ed G3VPF

 




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Re: Wednesday night 23cm Digifest

John Lemay
 

Simon

 

I sympathise with your unanswered CQ calls, but ………..

 

I didn’t know that you were calling, I didn’t know on what frequency, I didn’t know where you were beaming …. Etc.

 

Finding QSO partners on 23cms (and above) is quite a needle-in-a-haystack job, and we need all the help we can get to make successful contacts. Given that your internet connection is poor, I think your best bet is a prior announcement of your intentions on this reflector, rather in the way that John G4BAO set out the proposals for a Digifest. Given a bit of advance warning, and hopefully a few emails from people who will look your way, the success rate will improve.

 

Regards

 

John G4ZTR

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: Saturday, November 12, 2016 01:20
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

Thanks all for comments

 

In future I will post on this reflector and KST (When flaky broadband allows – penalty of living in a rural area).

 

May I humbly suggest that if you are in the shack, and as the JT modes are MG, some CQ calls may be responded to.

 

I set up the system to-night on 23 calling CQ – no response.

 

I hesitate to make the following comment -  If those of us who are around during daylight hours turn on our Transmitters it may, in the future, assist in protecting our band allocations.

To quote from G3PHO  “ A Thousand receivers make no noise”

 

73s

Simon

G8ATB

 

 

From: Neil neil@... [ukmicrowaves]

Sent: Friday, November 11, 2016 8:14 PM

Subject: Re: [ukmicrowaves] Wednesday night 23cm Digifest

 

 

It is certainly worth a try, particularly if you can aim end-on to a set of planes on a glide-path or a busy route. I find I get best scatter results from distant 23/13cm beacons when the planes are actually BEYOND the beacon, so i ins't scatter as such, but a reflection.  I get good reflections from GB3DUN and GB3ZME and Martlesham even when there are no planes between me and the beacon, but plenty to the south of them.  Lots of experimentation needed to determine exactly what is going on I think!

Happy to do a test almost any time so long as I get a bit of notice, working from home most of the time at present, so I am available at coffee breaks and lunch and most evenings.

Neil G4DBN

 

On 11/11/2016 20:04, Edward Harland g3vpf@... [ukmicrowaves] wrote:

 

Neil

 

I'm in IO80 square just west of Weymouth. Regrettably I am the wrong side of the Ridgeway which is very close and 200 metres higher, so I suspect my only hope is aircraft scatter. I have 40 Watts to a 23 element yagi at present, although this is about to be upgraded to a 44 ele. I hope to be on next wednesday receive-only to see if any signals get down this far.

 

Will take a read on MSK144 and see what needs to be done to get the transmit side working.

 

Ed G3VPF

 




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