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Re: Ball Efratom Rb freq reference
KENT BRITAIN
I had a similar issue with a precision 5 MHz soruce. I split the 5 MHz, ran it into two ports of a mixer, filtered the output and added a MMIC amp. Mixed the 5 MHz with the 5 MHz! Kent
On Monday, October 18, 2021, 08:21:54 AM CDT, Wilko <wkb@...> wrote:
hi, Yesterday a fellow OM and yours truly acquired this one. Dual Rb, GPSDO. Old but appears to be working just dandy. Alas: 5MHz output. Does anyone know if these can be hacked into supplying 10MHz instead? The docs I have sofar acquired mention 5 and 10MHz variants. In the grander scheme of things: if the distrib amps would be modifiable to 10MHz I would already be happy. 73 Wilko PA1WBU
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Re: Getting there ...
Paul G8AQA
I have some WG16 flexible waveguide
(attenuators!) here if you are interested and want to measure it.
73 Paul G8AQA On 18/10/2021 13:50, Robin Szemeti -
G1YFG wrote:
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Ball Efratom Rb freq reference
Wilko
hi,
Yesterday a fellow OM and yours truly acquired this one. Dual Rb, GPSDO. Old but appears to be working just dandy. Alas: 5MHz output. Does anyone know if these can be hacked into supplying 10MHz instead? The docs I have sofar acquired mention 5 and 10MHz variants. In the grander scheme of things: if the distrib amps would be modifiable to 10MHz I would already be happy. 73 Wilko PA1WBU
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Getting there ...
Robin Szemeti - G1YFG
Another step in the 10GHz puzzle solved ... a pair of Kuhne preamps. The SMA one will go in the 22W SSPA version, SMA relay, possible EME use, but focussed on hilltop use ... The WG one will go with the big TWT/WG relay/2.4m dish for EME. I've managed to acquire an ex military (Skynet system) 2.4m dish, complete with a tripod base and full mill spec motorised az/el mount ... I'm told it has a few metres of flexible waveguide, which shuodl make hooking it up to the TWT somewhat easier.  -- Best regards, -- Robin Szemeti - G1YFG
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OZ5SHF back
Ole OZ2OE
The OZ5SHF beacon system is back "On Air" after repair and adjustment. As we no longer have access to the 2300-2400 MHz part of 13 cm in OZ, the old 13 cm frequency has been changed to 2400,900 MHz. Other frequencies are unchanged: 1296,900 MHz, 3400,900 MHz, 5760,900 MHz, 10368,900 MHz and 24048,900 MHz.
73 Ole, OZOE
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Re: GB3MHZ 13 cm beacon
John Quarmby
We hope to bring it back soon, dependant on access and availability of the right people with site passes. I will post when we have more news. 73 John G3XDY On 16/10/2021 16:00, Rien Eradus PA0JME
wrote:
It has been a while that the 2320.830MHz GB3MHZ beacon vanished due to problems.
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Re: ATC700 capacitors
Conrad, PA5Y
No space.
Conrad
From: UKMicrowaves@groups.io <UKMicrowaves@groups.io>
On Behalf Of Robin Szemeti - G1YFG via groups.io
Sent: 16 October 2021 13:20 To: UKMicrowaves@groups.io Subject: Re: [UKMicrowaves] ATC700 capacitors
You could try the sample service at AVX, You might be better to choose 2 x 1.5kv caps in series, which are easier to find.
On Sat, 16 Oct 2021 at 11:41, Conrad, PA5Y <g0ruz@...> wrote:
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Re: ATC700 capacitors
Gedas
Just FYI, here in the states I
tried to get any number of 800C series caps as samples 2 weeks
ago and they have ZERO available of any value with lead times
for sales over several months. Gedas, W8BYA EN70JT Gallery at http://w8bya.com (under repair) Light travels faster than sound.... This is why some people appear bright until you hear them speak. On 10/16/2021 11:32 AM, geoffrey pike
via groups.io wrote:
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GB3MHZ 13 cm beacon
It has been a while that the 2320.830MHz GB3MHZ beacon vanished due to problems.
Is there any expectancy that the beacon will return? It is a nice condx indicator for 13cm. Though condx have been poor the past year I managed to receive the 9cm beacon not so consistent as I did with the 23cm (always audible) and the 13 cm beacon. Hopefully in spring I can put up the 10GHz and 5.76GHz transverters. 24GHz is planned too.
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Re: ATC700 capacitors
Robin Szemeti - G1YFG
I've never minded paying ... just being able to actually get them is a blessing! Mouser list some of those at over £40 each though, I assume it is for some valve-based project if it neds the high DC voltages.
--
Robin Szemeti - G1YFG
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Re: Coax Filters - 23cm etc.
Neil Smith G4DBN
Dominique F1FRV says there is a temporary server fault and the site has been off for a week. He hopes it will be back soon.
toggle quoted messageShow quoted text
Neil G4DBN
On 15/10/2021 13:48, Dominique Dehays wrote:
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Re: ATC700 capacitors
geoffrey pike
The sample service from AVX states that you may have to pay for them Geoff GI0GDP
On Saturday, 16 October 2021, 12:20:26 BST, Robin Szemeti - G1YFG <robin@...> wrote:
You could try the sample service at AVX, You might be better to choose 2 x 1.5kv caps in series, which are easier to find. On Sat, 16 Oct 2021 at 11:41, Conrad, PA5Y <g0ruz@...> wrote:
-- Robin Szemeti - G1YFG
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Activity List for the UK Microwave Group 24/47/76GHz Contests - Sunday 17th October
John Quarmby
Thanks for your inputs for tomorrow's mm-wave contests. These are the final sessions for the 2021 mm-wave Championship.
Rules are here: https://www.microwavers.org/files/2021-mwrules.pdf Here is the list - good luck to all taking part: Callsign: G4BAO Locator: JO02CG Bands: 24GHz 2W 60cm offset dish Talkback: ON4KST, 144MHz SSB, Zello SHF Chat Times: Dependent on local activity Callsign: G1EHF/P Locator: IO91GI25 (Combe Gibbet) Bands: 24GHz 250mW 60cm PF dish 47GHz ~100uW 30cm PF dish Talkback: ON4KST, 144.390 SSB, 433.450 NBFM Times: 10am BST onwards Callsign G8ACE/P Locator IO91GC Near Stockbridge Hants Bands 24GHz 2w 60cm dish - 47GHz 7mW FM 40cm dish - 76GHz FM if anyone else locally does Talkback 144390 & 433450 Times until about 4pm BST Callsign: G3ZME/P Locator: IO82QL Band: 24GHz, 60cm prime focus dish. 0.5W Talkback: 144.390, Zello SHF Chat, phone: 07421 001166, possibly 'KST on phone ('orrible) Times: From ~ 10.30 BST Callsign: G1DFL/P Locator: Roving in IO91 and maybe into IO81 Bands: 24GHz 0.25W 30cm 47GHz 0.0005W 30cm Talkback: 144.390 SSB/433.450 NBFM, wtKST, Zello, 07713 432632. Times: 10.30am to 4pm Callsign: G0JBA/P Locator: JO01MC 1130-1330 local Locator: JO01NI 1500-1600 local Bands: 24GHz 1.8W 40cm OS dish Talkback: ON4KST, 144MHz SSB Times: 1130-1330 local then 1500-1600 local - Rover The first location will favour towards the West from Nr Folkestone Kent Second location is on the North Kent Coast Callsign: G3XDY Locator: JO02OB Bands: 24GHz 3W 48cm PF dish Talkback: ON4KST, Zello SHF Chat Times: Dependant on local activity 73 John G3XDY -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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Re: Coax Filters - 23cm etc.
G8DQX list
Or extracted from https://worldradiohistory.com/Archive-IRE/40s/IRE-1944-11.pdf <https://worldradiohistory.com/Archive-IRE/40s/IRE-1944-11.pdf>, using a PDF manipulation program.
toggle quoted messageShow quoted text
73, HTH, Stay Safe, Robin, G8DQX
On 15/10/2021 14:57, Simon G8DMN via groups.io wrote:
Thanks, both.
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Re: ATC700 capacitors
Robin Szemeti - G1YFG
You could try the sample service at AVX, You might be better to choose 2 x 1.5kv caps in series, which are easier to find.
On Sat, 16 Oct 2021 at 11:41, Conrad, PA5Y <g0ruz@...> wrote:
--
Robin Szemeti - G1YFG
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Re: ATC700 capacitors
Dominique Dehays
Hi Conrad , probably here https://www.rf-microwave.com/it/home/ 73 Dom/F6DRO Le 16/10/2021 à 12:40, Conrad, PA5Y a
écrit :
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ATC700 capacitors
Conrad, PA5Y
Hello where can I get ATC 700E caps from? Or should I say AVX 700E series? I need 2 x 12pF F tolerance, 2 x 8.2PF B tolerance and 3 x 24pF F tolerance. These do not appear to be stock items at Mouser.
73
Conrad PA5Y
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Re: Activity List for the UK Microwave Group 24/47/76GHz Contests - Sunday 17th October
G1DFL
I plan to be out on Sunday. Callsign: G1DFL/P Locator: Roving in IO91 and maybe into IO81 Bands: 24GHz 0.25W 30cm 47GHz 0.0005W 30cm Talkback: 144.390 SSB/433.450 NBFM, wtKST, Zello, 07713 432632. Times: 10.30am to 4pm Hope to work some of you! Regards..Pete G1DFL
On Friday, October 15, 2021, 05:07:47 PM GMT+1, G8ACE <hazellje@...> wrote:
My Plans Callsign G8ACE/P Locator IO91GC Near Stockbridge Hants Bands 24GHz 2w 60cm dish - 47GHz 7mW FM 40cm dish - 76GHz FM if anyone else locally does Talkback 144390 & 433450 Times until about 4pm BST Also taking my 630nm (red light) system to see if a longer daylight path is possible 73 John G8ACE
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Re: Activity List for the UK Microwave Group 24/47/76GHz Contests - Sunday 17th October
Callsign: G3ZME/P
Locator: IO82QL Band: 24GHz, 60cm prime focus dish. 0.5W Talkback: 144.390, Zello SHF Chat, phone: 07421 001166, possibly 'KST on phone ('orrible) Times: From ~ 10.30 BST P.S. Tough going in Sept. - hope for a bit more this final month, Walbury, S. Wales etc 73 Martyn G3UKV On 11/10/2021 15:36, John Quarmby via
groups.io wrote:
The last of the UKuG mm-wave contests for 2021 takes place this coming Sunday 17th October, from 0900-1700GMT (1000-1800BST).
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Re: Activity List for the UK Microwave Group 24/47/76GHz Contests - Sunday 17th October
G8ACE
My Plans
Callsign G8ACE/P Locator IO91GC Near Stockbridge Hants Bands 24GHz 2w 60cm dish - 47GHz 7mW FM 40cm dish - 76GHz FM if anyone else locally does Talkback 144390 & 433450 Times until about 4pm BST Also taking my 630nm (red light) system to see if a longer daylight path is possible 73 John G8ACE
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