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Author Topic: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017  (Read 2736 times)

Offline ChrisSmolinski

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RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« on: March 29, 2017, 1244 UTC »
Some very weak music just above the noise level.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
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Offline TheRelayStation

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Re: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« Reply #1 on: March 29, 2017, 1330 UTC »
Chris, your receiving station impresses me a great deal, especially when you are receiving my 100mW "test" broadcast.
not intending to broadcast today, just doing some very low power stability testing and calibration adjustments with C-QUAM and a 25Hz pilot tone (PCB i etched and built).
5150 Khz AM 60W Hack RF
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Offline ChrisSmolinski

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Re: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« Reply #2 on: March 29, 2017, 1336 UTC »
Your transmitting antenna setup is impressive also! Hearing you again at 1335z. Maybe SIO 111-222 ?

C-QUAM! I know someone who will be excited to hear that  ;D
Chris Smolinski
Westminster, MD
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Offline TheRelayStation

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Re: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« Reply #3 on: March 29, 2017, 1400 UTC »
its really quite easy to integrate it into the radio i am using to broadcast (Yaesu 757-GXII).
i just have to watch/adjust the AM & PM modulation levels, trying different adjustments and testing it for the best outcome result (the purpose of the low power test broadcast).
im doing this in a rather crude way, it was relatively easy to enable simultaneous PM & AM modulation but the crude part is using two soundcards, one soundcard has L+R and the other has L-R, both are processed and synchronized by two instances of stereotool - the PCB is an "isolation" circuit to avoid common grounds on both sides of the audio chain so they dont cancel each other out.
so this really requires alot of adjustments and calibration to get it to operate correctly but the results so far are pretty good.
good thing work is slow today.
also going to try DRM as well.
« Last Edit: March 29, 2017, 1617 UTC by TheRelayStation »
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Offline PirateSWL

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Re: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« Reply #4 on: March 29, 2017, 2023 UTC »
Relay Station 5150 S1-S3 in NY (occasionally)

Been listening since a little before 2000 UTC and hearing bits & pieces of music through 2015. I believe I heard Arlo Guthrie "City Of New Orleans" at 2008 ? Going to keep listening although not hearing much now.

2133: Signal back in with Fleetwood Mac "Go Your Own Way" (this one I got 100%)
2152: Sly & The Family Stone "Thank You"
2208: The Carpenters "Only Yesterday" (peaking S3 for a minute)
2216: Meatloaf "Two Out Of Three Ain't Bad"
2258: Wild Cherry "Play That Funky Music"
« Last Edit: March 29, 2017, 2258 UTC by PirateSWL »
Brian D. - PirateSWL
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Offline ChrisSmolinski

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Re: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« Reply #5 on: March 29, 2017, 2058 UTC »
I'm getting SIO 222 audio now. Quite impressive for 100 mW.

Now SIO 333 at 2139z.

S7 signal at 2149. Amazing.
« Last Edit: March 29, 2017, 2149 UTC by ChrisSmolinski »
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline skeezix

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Re: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« Reply #6 on: March 29, 2017, 2229 UTC »
C-QUAM! The wave is spreading.  ;D

However, I have yet to hear 5150 (regardless of power levels).


Minneapolis, MN

Offline jFarley

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Re: RELAY STATION 5150 AM 1244 UTC 29 Mar 2017
« Reply #7 on: March 29, 2017, 2340 UTC »
Nada nothing here at 2330.

Will check back later.
Joe Farley, Near Chicago
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