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Messages - ION Radio

Pages: 1 ... 6 7 [8]
106
The RF Workbench / Power Supply for TX
« on: December 24, 2017, 1303 UTC »
I'm looking to replace a cheap Chinese PSU I've been using to power my Lulu TX. It was good enough I guess to get things started but I recently got a scope and it looks like I get a lot of ripple/noise from my Chinese PSU. Carrier looks terrible on scope and it may be that I don't have my scope settings correct. I'm still learning how to use the scope but I strongly suspect it's the PSU. My audio sounds good on recordings that listeners send with reports, so I don't think the PSU is affecting the audio too badly anyway, but I think I should use a better PSU. I can save the image on the scope, I still have to figure out how to do that, if anyone wants to have a look at what my carrier looks like on the scope with the cheap PSU I can send that to you.

I looked around online for a new PSU but I would like to hear about what other people are using before I spent more money. The Lulu I got from Stretchyman will run from 12-24 volts. I usually stay at 18v (12 watt carrier) so a power supply that is adjustable between 12-24 volts is what I'm looking for. PSUs I see online for Ham radio only go up to 16v. I really don't want to use battery power.

Thanks for any help!

107
Shortwave Pirate / Re: UNID 6940 USB 2319 UTC 22 Dec 2017
« on: December 22, 2017, 2331 UTC »
2330 12 Days Of Christmas parody. S4 with fade, low noise.
2334 SSTV

108
Shortwave Pirate / Re: UNID SSTV 6945 USB 2241 UTC 22 Dec 2017
« on: December 22, 2017, 2329 UTC »
Got that one to..

109
Shortwave Pirate / Re: UNID 6945 USB 2115z Dec 22, 2017
« on: December 22, 2017, 2122 UTC »
2121 Old time xmass tune. S7 some noise and fade.


(Thanks for the Welcome DimBulb!)

110
Shortwave Pirate / Re: Relay Station 5010 am 1633 utc 22 Dec 2017
« on: December 22, 2017, 1935 UTC »
1935 A very steady S9. "Twilight Zone". Nice audio!
1944 "Puttin' on the Ritz"

2111 Dude talking about his radios. Maybe that You Tube guy. S9 peaks with some deep fades.

111
Shortwave Pirate / Re: Moonlight Radio 6930 USB 2235 UTC 21 Dec 2017
« on: December 21, 2017, 2313 UTC »
2312 ID MR. S3, slight noise.

112
Shortwave Pirate / Re: Mr. Man Radio 6942 USB 2310 UTC 20 Dec 2017
« on: December 20, 2017, 2325 UTC »
2325 S9 peaks, noise. "Game of Love" then  The Who.

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