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Messages - Beerus Maximus

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121
The RF Workbench / Re: Heathkit DX-40 tube transmitter
« on: December 04, 2022, 1359 UTC »
The first question I can answer confidently for you. Yes, you can transmit outside the ham bands with the DX-40. Unlike modern transceivers with digital control that can prevent you from doing so, the DX-40 is a simple radio from a different era, at a cost efficient price point. A crystal for just below the 40m band (or above the 80m band, say) should work just fine for you.

Audio will be a different story. What you have there is a screen modulated transmitter designed primarily for CW. AM was achieved with a high impedance microphone like a D-104. Wiring the headphone output of an MP3 player to the mic jack may modulate the radio to some degree, but it may not sound great. It certainly won't hurt to experiment but watch out for ground loops on the audio, etc and you may find you'll need to pursue some kind of impedance matching audio transformer, or a different way to modulate the radio entirely.

Also, when working on equipment of this vintage be extremely mindful of high voltages that are present, and that can remain present even when the radio is OFF. Take precautions to bleed power supply caps before working on the radio.

122
Nice S9 signal at 1537 UTC with a skit about woodchucks eating toilet seats at the nature preserve.

123
Also heard here and when I noted it in the Discord channel, the voice began making comments towards me LOL. At about 1345 UTC.

124
Weird and cool show! At first hard to decipher WFAT with the voice but then I got it thanks to hsmith. Good S8 signal in the Boston burbs.

Hope we get some more WFAT shoved down our radio holes soon!

125
Good S8-ish signal in the Boston burbs at 1942 UTC with Celtic folk style music.

126
North American Shortwave Pirate / UNID 6970 AM 2138 UTC 28 NOV 2022
« on: November 28, 2022, 2138 UTC »
Very large carrier appeared for a few minutes, off at 2138 UTC.

127
Very strong carrier in the Boston burbs, there was a moment or two of hum, sounded like cables being plugged/unplugged, then into Doors. Audio is thin and undermodulated, vastly underperforming the carrier.

128
Was strong here in the Boston burbs, about S9, with some kind of asian music, a child's voice (??) and repeated "bellringer" ID. I believe this was heard yesterday with Alex Jones material spliced in.

129
North American Shortwave Pirate / UNID 6930 USB 1538 UTC 25 NOV 2022
« on: November 25, 2022, 1539 UTC »
Some kind of strange mash-up of Alex Jones, music and various other clips. S6-ish in the Boston burbs.

130
Very good S9 signal in the Boston burbs.

131
North American Shortwave Pirate / UNID 6925 USB 1517 UTC 25 NOV 2022
« on: November 25, 2022, 1517 UTC »
Good USB signal up on 6925 USB with "Magic" by FM Attack. About S6-S7 in the Boston burbs.

132
S5-ish in the Boston burbs. Not sure if there's an audible hum on the signal, or if it's local QRN. Some kind of bluesy guitar rock at 1335 UTC.

133
Itttt's baaack. Random turkey gobbles on 6930 USB this morning. Good signal in the Boston burbs.

134
The gobble has gone electro. Pretty funny mashup of "let's talk turkey" and the gobble.

135
Monitoring the waterfall, noticed random and periodic "turkey gobbles" on 6930 USB. Signal is about S4 in the Boston burbs.

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