Date   

Re: More 23 GHz Wavelab 2 watt transverters available on ebay

Neil Smith G4DBN
 

For those interested, there is a reverse-engineered schematic of the Wavelab units at http://mikrofale.cafe/attachment.php?aid=602

As Denis pointed out, there is a filter in the transmit chain so you need a TX chain which can work at 2.364MHz and an IF around 1.5 GHz, with local osc of 939.5 MHz on RX and 903.5 MHz on TX. I guess various boards are being put together to transvert those IFs to other more friendly frequencies, but it isn't exactly a complex task to make one up.
Neil G4DBN


70 and 23cm driver boards all gone

John Worsnop
 

Hopefully more in July once I get more devices as I still have plenty of pcbs

John


More 23 GHz Wavelab 2 watt transverters available on ebay

Neil Smith G4DBN
 

https://www.ebay.co.uk/itm/23GHz-WAVELAB-23x1008xp-Transverter-QRO/203289901451

Discussion at http://mikrofale.cafe/showthread.php?tid=197 - also an interesting new item about a controller for a Alcatel 9500 at 10 GHz.

I have some spare PSU and connector PCBs for the Wavelabs if anyone needs them. This is an evolving project, and the choice of optimum IF is still being determined.

Neil G4DBN



Re: Low Microwave Bands contest Sunday 11 April

Tim Hague M0AFJ
 

I’m intending to be on from around 1200 for a couple of hours, will have KST. Want to give my new transverter a run out

Best Regards
Tim Hague
M0AFJ 
IO70jf


On 10 Apr 2021, at 16:40, Nick Gregory G0HIK via groups.io <nickg0hik@...> wrote:

I'm hoping to be out tomorrow from IO84.

Good take off East, South and West, but no GM from the portable QTH unfortunately.

Active on all bands, but QRPish.

Will have KST and hope to be on from around 10 AM WX dependent.

Nick G0HIK/P


Re: Low Microwave Bands contest Sunday 11 April

Nick Gregory G0HIK
 

I'm hoping to be out tomorrow from IO84.

Good take off East, South and West, but no GM from the portable QTH unfortunately.

Active on all bands, but QRPish.

Will have KST and hope to be on from around 10 AM WX dependent.

Nick G0HIK/P


Re: Low Microwave Bands contest Sunday 11 April

Brian Howie GM4DIJ
 

In message <33f80581-6cab-7778-7174-83d8e0c7cb22@ucl.ac.uk>, Phil Guttridge G3TCU <p.guttridge@ucl.ac.uk> writes
We  plan to be out this Sunday, after the long break:
Callsign: M0HNA/P
Locator: IO91RF
Bands: 1.3GHz 400W 67ele
2.3GHz 60W 0.9m dish
3.4GHz 15W 1.1m o/s dish
Talkback: ON4KST, (23cm M0HNA-1, 9&13cm M0HNA-2)
direct CQ on 23cm.
Times: Throughout the event
73, Barry G4SJH, Dave G1EHF, Phil G3TCU
I'm on from Edinburgh . The bands activated will depend on activity.
I'll start out on 13cm and swap at some point to 23cm.


Callsign: GM4DIJ
Locator: IO85IW
Bands:
1.3GHz 25W 30 ele
2.3GHz 20W 50 ele
3.4GHz 2W 35cm o/s dish.

Talkback: ON4KST

Times: 1st couple of hours.

Brian GM4DIJ
--
Brian Howie


Re: Low Microwave Bands contest Sunday 11 April

Martin - GM8IEM
 

Callsign: GM8IEM
Locator: IO78HF
Bands: 1.3GHz 180W 67 el VLNA
2.3GHz 80W 67 el VLNA
Talkback: ON4KST

Active throughout

73, Martin
GM8IEM – IO78HF


Re: G4BAO 23cm and 70cm driver boards

g4bao
 

Just done a physical check and I have three 70cm kits and three 23cm kits left in stock with LDMOS devices in them.

Obviously I can move the devices between kits if there is demand for a particular band.

Get them while you can, its looking unlikely I can source new devices until at least July

73

John


Re: Low Microwave Bands contest Sunday 11 April

militaryoperator
 



Callsign G4BXD
LOC       IO82UJ
Bands   1.3Ghz 100w  28ele
              2.3Ghz 20w   40ele
              3.4GHz 20w   flat plate
 
Talk back ON4KST

throughout the day



Re: Low Microwave Bands contest Sunday 11 April

steve G1PPA
 

I plan to be out tomorrow wx permitting 
Callsign G1PPA/P
LOC        IO93RI
Bands 1.3Ghz 10w
             3.4GHz 15w
1.2mtre dish 
Talk back ON4KST

From around 11:30

Steve G1PPA 


On Sat, 10 Apr 2021 at 9:50, Pete - GM4BYF via groups.io
<gm4byf@...> wrote:
Callsign: GM4BYF
Locator: IO85JV
Bands: 1.3GHz 100W 55ele
2.3GHz 100W 1.2m dish
Talkback: ON4KST,

Active throughout

73
Pete GM4BYF




--
vry 73
Pete GM4BYF






Re: Low Microwave Bands contest Sunday 11 April

Pete - GM4BYF
 

Callsign: GM4BYF
Locator: IO85JV
Bands: 1.3GHz 100W 55ele
2.3GHz 100W 1.2m dish
Talkback: ON4KST,

Active throughout

73
Pete GM4BYF




--
vry 73
Pete GM4BYF


G4BAO 23cm and 70cm driver boards

John Worsnop
 

Seems that the RF devices are out of stock at all UK suppliers until at least July so I'm down to the last 2 or 3 of each kit for now.
I'm looking for alternative suppliers/devices so watch this space.
Sorry

73
John


Re: Low Microwave Bands contest Sunday 11 April

G0FCU
 

Phil, 
looking at that square it seems that Newlands Corner would be the highest spot but maybe you have a more secluded spot to operate from.

If I can sort out a 13cm antenna tomorrow I may try to get on with my new (as yet untested so maybe rx only) gear from near my home qth (IO91SE).

Simon
G0FCU.


On Fri, 9 Apr 2021, 12:27 Phil Guttridge G3TCU, <p.guttridge@...> wrote:
We  plan to be out this Sunday, after the long break:

Callsign: M0HNA/P
Locator: IO91RF
Bands: 1.3GHz 400W 67ele
2.3GHz 60W 0.9m dish
3.4GHz 15W 1.1m o/s dish
Talkback: ON4KST, (23cm M0HNA-1, 9&13cm M0HNA-2)

direct CQ on 23cm.
Times: Throughout the event

73, Barry G4SJH, Dave G1EHF, Phil G3TCU



On 03/04/2021 22:12, John Quarmby via groups.io wrote:
The next UK Microwave Group contest is the LowBand event on 11th April from 10:00 - 16:00 GMT (11:00 - 17:00 BST) on the 1296, 2300, 2320, and 3400MHz bands.

As some of the lock down rules have been relaxed, portable entries will now be accepted.

73

John G3XDY
UKuG Contest Manager




Re: Low Microwave Bands contest Sunday 11 April

John Lemay
 

I’m planning to be QRV on Sunday:-

 

Call: G4ZTR

Locator: JO01KW

Bands:

1.3GHz 300w, 1.5m dish

2.32GHz 50w, 1.5m dish

3.4GHz 15w, 1.5m dish

Talkback on ‘KST and direct CQ on 23cms

Times: throughout

 

Regards

 

John G4ZTR

 

From: UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of Pete - GM4BYF via groups.io
Sent: 09 April 2021 14:08
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] Low Microwave Bands contest Sunday 11 April

 

Look forward to working you on 23cm Phil and 13cm (but pump up mast stopped working) - dish should be available at a low height as winds forecast to be light.

Not allowed outside local authority area in Scotland, so no suitable /p locations available. I hope there are suitable planes !

73
Pete GM4BYF

On 09/04/21 12:27, Phil Guttridge G3TCU wrote:

We  plan to be out this Sunday, after the long break:

Callsign: M0HNA/P
Locator: IO91RF
Bands: 1.3GHz 400W 67ele
2.3GHz 60W 0.9m dish
3.4GHz 15W 1.1m o/s dish
Talkback: ON4KST, (23cm M0HNA-1, 9&13cm M0HNA-2)

direct CQ on 23cm.
Times: Throughout the event

73, Barry G4SJH, Dave G1EHF, Phil G3TCU

 

On 03/04/2021 22:12, John Quarmby via groups.io wrote:

The next UK Microwave Group contest is the LowBand event on 11th April from 10:00 - 16:00 GMT (11:00 - 17:00 BST) on the 1296, 2300, 2320, and 3400MHz bands.

As some of the lock down rules have been relaxed, portable entries will now be accepted.

73

John G3XDY
UKuG Contest Manager

 


--
vry 73
Pete GM4BYF


Re: Low Microwave Bands contest Sunday 11 April

Pete - GM4BYF
 

Look forward to working you on 23cm Phil and 13cm (but pump up mast stopped working) - dish should be available at a low height as winds forecast to be light.

Not allowed outside local authority area in Scotland, so no suitable /p locations available. I hope there are suitable planes !

73
Pete GM4BYF
On 09/04/21 12:27, Phil Guttridge G3TCU wrote:

We  plan to be out this Sunday, after the long break:

Callsign: M0HNA/P
Locator: IO91RF
Bands: 1.3GHz 400W 67ele
2.3GHz 60W 0.9m dish
3.4GHz 15W 1.1m o/s dish
Talkback: ON4KST, (23cm M0HNA-1, 9&13cm M0HNA-2)

direct CQ on 23cm.
Times: Throughout the event

73, Barry G4SJH, Dave G1EHF, Phil G3TCU



On 03/04/2021 22:12, John Quarmby via groups.io wrote:
The next UK Microwave Group contest is the LowBand event on 11th April from 10:00 - 16:00 GMT (11:00 - 17:00 BST) on the 1296, 2300, 2320, and 3400MHz bands.

As some of the lock down rules have been relaxed, portable entries will now be accepted.

73

John G3XDY
UKuG Contest Manager




--
vry 73
Pete GM4BYF


VK3CV 122GHz DX distances

Noel G8GTZ
 

Neil G4LDR said " We should also keep tabs on the best UK DX achieved by the VK systems (approx. 12km at the moment I think)."

On October 18th 2020 Dave G1EHF and Noel G8GTZ worked 17.03km between IO91GI25WT (Coombe Gibbet) and IOIO91HL86NW (Mud Lane Peasemore).  Barefoot VK3CV units were used at both ends into 60cms 47GHz dishes. 

Hopefully we will be able to improve on that this year and I'm now wishing we had gone out on Wednesday rather than sitting in the warm shack!

73's Noel


Re: Low Microwave Bands contest Sunday 11 April

Phil Guttridge G3TCU
 

We  plan to be out this Sunday, after the long break:

Callsign: M0HNA/P
Locator: IO91RF
Bands: 1.3GHz 400W 67ele
2.3GHz 60W 0.9m dish
3.4GHz 15W 1.1m o/s dish
Talkback: ON4KST, (23cm M0HNA-1, 9&13cm M0HNA-2)

direct CQ on 23cm.
Times: Throughout the event

73, Barry G4SJH, Dave G1EHF, Phil G3TCU



On 03/04/2021 22:12, John Quarmby via groups.io wrote:
The next UK Microwave Group contest is the LowBand event on 11th April from 10:00 - 16:00 GMT (11:00 - 17:00 BST) on the 1296, 2300, 2320, and 3400MHz bands.

As some of the lock down rules have been relaxed, portable entries will now be accepted.

73

John G3XDY
UKuG Contest Manager




Re: New British 122 GHz distance record

Mike Lavelle K6ML
 

Congrats!  


Re: ALC Overrun

Greg - ZL3IX
 

Damage to the transverter isn't the only problem with using a rig with the ALC working very hard. You need to get someone to check your signal for splatter, or better still use a spectrum analyser if you have one. Making a fast-acting ALC that doesn't cause splatter (spectral regrowth) is not an easy design task and many commercial manufacturers don't succeed in that goal.


Re: New British 122 GHz distance record

G4LDR
 

Well done Chris and Roger. That is going to be hard to beat at least until the humidity drops again to the levels seen this week. We should also keep tabs on the best UK DX achieved by the VK systems (approx. 12km at the moment I think).

73 Neil.

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