Search found 6 matches

by grafter
Tue May 14, 2019 1:37 pm
Forum: RTL-SDR Discussion
Topic: LNA power supply?
Replies: 6
Views: 1573

Re: LNA power supply?

Fleabay, and look for old CB radio power supplies. I use a couple of Bremi BRS27s because they have variable voltage output accessed from the PCB, one runs at 12V for radios, the other at 16V to power a laptop with no noise on HF or VHF.
by grafter
Sun Dec 30, 2018 11:21 am
Forum: RTL-SDR Discussion
Topic: HF/VHF spyverter and RTL
Replies: 4
Views: 2472

Re: HF/VHF spyverter and RTL

I hadn't even considered that option but given how cheap the RTLs are it does sound like a good plan, thanks for the suggestion. Size isn't a problem because all my SDRs are connected directly to a patch panel of switches and multicouplers to reduce the number of patch leads. I've actually got a cou...
by grafter
Wed Dec 26, 2018 8:51 pm
Forum: RTL-SDR Discussion
Topic: HF/VHF spyverter and RTL
Replies: 4
Views: 2472

Re: HF/VHF spyverter and RTL

It's a shame the ham-it-up doesn't have seperate antenna inputs that are toggled with the bypass switch, I could live with that but I'm not sure there's much gained with a bypass switch on a single antenna socket. Plus the Sverter includes a case for the same price.
by grafter
Wed Dec 26, 2018 11:56 am
Forum: RTL-SDR Discussion
Topic: HF/VHF spyverter and RTL
Replies: 4
Views: 2472

HF/VHF spyverter and RTL

I have an RTL v3 for VHF and I've been tempted by the direct sampling of HF so I've got a magnetic loop for HF listening and intend to buy a Spyverter. Using an RTL for both HF and VHF must be quite common but has anyone devised an elegant solution for switching antennas and/or an upconverter in and...
by grafter
Sun Oct 07, 2018 9:38 am
Forum: Other SDR Devices
Topic: ELAD FDM-S3
Replies: 6
Views: 21539

Re: ELAD FDM-S3

So apart from the much publicised unit that does the rounds of radio shows are there actually any S3s in use by end users who have purchased them? What are we now, two years on and it's looking increasingly like vapourware.
by grafter
Tue May 01, 2018 5:14 pm
Forum: Other SDR Devices
Topic: ELAD FDM-S3
Replies: 6
Views: 21539

Re: ELAD FDM-S3

Do we think this is ever going to be released? I was all ready to buy one ready for the 2017 Es season and here we are starting the 2018 season and still no sign of it going on sale. I've seen the ads, the one off unit at the shows and yet every time someone asks the developer when is it going on sa...