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CAT 25 Test and Fix-it

Posted: Thu Jul 31, 2025 8:05 am
by G8GKQ
As usual Clive, Lyndon and I will be running a test and fix-it bench at CAT 25.

I plan to bring equipment for:

Spectrum Analysis 50 MHz - 25 GHz
Power Measurement 50 MHz - 10 GHz, 1 mW - 150 W
Receievr Noise Figure indication 50 MHz - 25 GHz
Filter Alignment 50 MHz - 10 GHz
DVB-S/S2 transmission and reception

It would help if potential "customers" were able to give us advance notice (by posting here) of anything that they are bringing for test and fix-it.

Please bring your own mains/battery power supplies and RF adapters. The test equipement uses N-Type or SMA.

73

Dave, G8GKQ

Re: CAT 25 Test and Fix-it

Posted: Thu Jul 31, 2025 9:59 am
by g4saq
Hi Dave,
I would like to test the NF of a PGA-103+ pre-amp at 23cms please. It has female SMA connectors. I'll bring a battery.
Also, I have just built a W1GHZ directional coupler and it would be nice to know the exact coupling at 2m, 70 cms and 23 cms. The main line has female N connectors and the coupled line has female SMA connectors.
On that basis, do I need to bring any adapters/leads, please?
Many thanks,
Russ, G4SAQ

Re: CAT 25 Test and Fix-it

Posted: Thu Jul 31, 2025 10:30 am
by G8GKQ
Hi Russ

Interesting tests. I'll have adapters to cover all of that.

73

Dave

Re: CAT 25 Test and Fix-it

Posted: Thu Jul 31, 2025 5:24 pm
by G4IMO-TV
Dave, I'm bringing 3 LNA's I would like to know the NF @ 2395Mhz.
Two of them have Female Sma for in and out, and one has Female N in and Male N out.
I will bring a variable Power Supply.

thanks
Nick
G4IMO

Re: CAT 25 Test and Fix-it

Posted: Fri Aug 01, 2025 2:04 pm
by G8GKQ
OK Nick

Yes, we'll be equipped for that.

Dave