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Messages - chanito

Pages: 1 [2] 3 4 5 6 7 8 9 10 ... 15
16
Equipment / Re: flex 3000 for a transmitter?
« on: November 04, 2020, 2029 UTC »
KE9NS PSDR version will allow the 3000 to go 10kHz wide. It will sound clean and flat. The PSDR audio processing will sound OK on music, but it really isn't designed for that. Better to use an external multiband broadcast processor if possible. You can feed it into the Flexwire line level input on the back.


Duty cycle? While the 3000 has good cooling, based on my own experience with digi modes running 40 watts, depending on the band, it will probably not hold up to continuous transmit despite what the specs say. At a 1.2:1 match on 20m, the temp rises to 70c pretty quickly and the fans run full speed during one JT65 cycle. Broadcast program audio would be different but with processing for loudness may behave the same as continuous tones.




17
Splattering on aviation frequencies is not to be taken lightly. "I wanted to play Pixies and Concrete Blonde but some plane crashed..".

18
That looks like a $17 lighter plug transmitter in a bigger case with a telescopic antenna.

19
10/11 meters / 27.385 LSB crazy music for the past hour, S8-S9
« on: September 06, 2020, 1805 UTC »
Drowning out the other skip hands down. Sounds like some EDM then into Mexican Radio at 1805

20
Amateur Radio / Re: ISS with Crossband repeater!
« on: September 05, 2020, 2111 UTC »
This is awesome, but it will be abused by the bigger satellite stations who will commandeer the passes from horizon to horizon every pass like every other FM bird. Miss the days when I could hit the shuttle or ISS with a handheld.

21
10/11 meters / 11m cooking today - super wideband guy on 27.315 AM
« on: September 05, 2020, 2017 UTC »
He's in excess of 10kHz bandwidth. Sounds pretty good. "Old Crow, Central Alabama"



22
Made me get off my duff and put the shelf queen RSP1 to work. Used a junk Chinese Atom based Win10 mini pc to run it. Stuck on my LAN and it's great. Ended up putting the indoor MLA030 on it as a permanent antenna, with a BCB filter inline, and it's great for MW listening day and night. Locals are +25dB or better even with the filter in place. SW not so much but it does pick up some stronger ones. Also makes a great station monitor.


In short, made use of a bunch of stuff that was sitting idle.

23
Part 15 AM and FM Station Operation / Re: Introducing Parking Lot Radio!
« on: September 04, 2020, 1829 UTC »
Why use a wall wart when you could use USB ?
And why not make it on a card that goes inside the computer?

~

PCS Electronics still makes a PCI card FM transmitter. VAST makes a USB powered FM transmitter with RDS. Both roughly the same price. About $130.








24
I see a bunch of variations on eBay of it with prices all over the place. The videos make it look like a pretty nice rig for the price point. Thoughts?


https://www.youtube.com/results?search_query=50K-200MHz+Malachite+SDR+Radio+Malahit+DSP+SDR+Receiver


this unboxing is wacky [size=78%]https://www.youtube.com/watch?v=4RW8a0KPhxE[/size]

25
I installed an IF to soundcard converter in mine so I could use DReaM. There's a little blank plastic panel on the side that now hosts a RCA connector. Originally purchased the 440 in 1991 to listen to shortwave coverage of Desert Storm. I did the anti-chuffing mod at one point. Radio still works to this day and has seen countless hours of operation. It's kind of a beast to use portable, but I like that the layout is not tiny and cramped.


One tip to make the BFO and RF Gain knobs finger friendly is to find a piece of 1/4" aquarium tubing and cut two rings, about 2mm long. Slip those over the center post of the knob. Enjoy.

26
2106 UTC They are back. Not as strong as yesterday, but there.

27
Equipment / Re: ICOM ICR-75 vs. TECSUN S-2000
« on: August 11, 2020, 1655 UTC »
Apples and oranges. The R75 is a low end but mil spec communications receiver, while the S2000 is a consumer portable built into a large case.

28
Equipment / Re: Dipping toes into SW
« on: August 11, 2020, 1456 UTC »
Do you have the option of an outdoor antenna?

29
Very odd. Two or three stations talking back and forth and the signals had QSB. The band is not open to any degree that I can see. Some full quieting into S. Texas.


here's a clip https://soundcloud.com/chanito-cabron/28425fm

30
10/11 meters / Re: 11m opening
« on: August 04, 2020, 2127 UTC »
I can honestly say I've heard idiots in all 50 states. Too bad there's not a WAS, DXCC type of award for that.


I like it. "Worked All Idiots" award.

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