Re: coax recommendations?
Wow! LMR400 connected to softrock with BNC connector. That will be interesting.
--
VY 73,
Wes AE6ZM
Sierra Vista, AZ
By
Wes WB7BR
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#88514
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Re: coax recommendations?
Agreed.? But my recommendations for RG-58 was based on two factors.
1.? The rigs in question are Softrocks, which I presume means that it'll be used primarily for LF or HF.
2.? The poster of the
By
Philip Atchley <ko6bb1@...>
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#88513
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Re: coax recommendations?
For above 28 MHz and VHF/UHF, I would use LMR 400 for cable lengths up to 70-100 ft.
73,
Gordon Beattie, W2TTT
201.314.6964
Get Outlook for
By
Gordon Beattie, W2TTT
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#88512
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Re: coax recommendations?
Hi, For receive only I'd recommend using RG-58, relatively low cost and you can buy it with connectors already attached from places like Amazon etc (probably eBay too though I don't do eBay).? Just
By
Philip Atchley <ko6bb1@...>
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#88511
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coax recommendations?
For the first time in three decades, I'm going to need to buy about 50 feet of 50 ohm coax.? I am installing an outdoor antenna, so will need it.? I am on a limited budget.? It will be used for the
By
JonI
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#88510
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Re: found the birdies issue, solution?
Switch to WiFi. Ethernet cables are notoriously bad for radio.
73, Mike AF7KR
By
vbifyz
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#88509
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found the birdies issue, solution?
Well, one of the last remaining issues continued to be birdies, with spacing varying depending upon band so sometimes they might be 20-30 Khz apart, other times more and also more frequent. Tonight,
By
JonI
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#88508
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Re: Softrock Ensemble II and Raspberry Pi
These symptoms points that you have no getting two channels (stereo) from your cheap audio dongle. A lot of these are mono and the Softrock need the two channels to do the math correctly. I have 2
By
EB4APL
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#88507
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Re: Softrock Ensemble II and Raspberry Pi
After several trials, I had to use USBSoftrock command to check configuration of USB on my Raspberry Pi 3B.
I use a really cheap USB audio dongle to get the rx into the Pi.
That all working I
By
Bob G4IOG
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#88506
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Re: Softrock sometimes not connecting after boot up
Jon
Playing USB is how I've rectified such problems.
A common thing is a Keyboard/Mouse RX. Put that on a hub and often the problem is bypassed.
73 Alan G4ZFQ
By
Alan G4ZFQ
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#88505
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Softrock sometimes not connecting after boot up
I've had this issue off and on ever since setting up the Ensemble RX II a couple of months back.? I can't trust that it will be running, so the first thing I do when in Win 7 is check CFGSR to see
By
JonI
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#88504
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Re: ways to tackle USB keyboard interference?
After some adjustments yesterday, I have it now set up where I won't even need a keyboard.? A setting in Win RDP without password allows this.? Now if in the event I do need one every now and then,
By
JonI
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#88503
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Re: ways to tackle USB keyboard interference?
I have a sketch of a HDSDR plugin
https://github.com/bubnikv/ExtIO_Omnia/tree/networking
and a tiny server to run on an Android phone, so you don't need to run a
By
Vojtech Bubnik
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#88502
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Re: ways to tackle USB keyboard interference?
I just did that, and the price at Wal-Mart for this combo is only twenty
bucks.
73, Mike W0BTU
By
W0BTU
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#88501
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Re: ways to tackle USB keyboard interference?
You may also try to replace the cable with a well shielded one. Some of the 2005-2010 stuff before the massive cost cutting era we are in now.
By
Vojtech Bubnik
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#88500
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Re: ways to tackle USB keyboard interference?
For the price of a logitec wireless mouse and keyboard combo you can eliminate 2 usb wires and their ferrites and the rfi they bring to the game. Less clutter and more flexibility for operating
By
Chuck Yahrling
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#88499
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Re: ways to tackle USB keyboard interference?
Hi Mike,
I took special note of your comment below about the USB interference, asone of my student designs <https://github.com/Dizzerin/Software-Defined-Radio> had some annoying problems with this
By
Rob Frohne (KL7NA)
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#88498
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Re: ways to tackle USB keyboard interference?
Jon,
A couple thoughts.
The USB section of the SoftRock RXII is supposed to be electrically (DC ground and +V buses) isolated from the rest of the circuitry. There are optocouplers and a transformer
By
Roger
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#88497
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Re: ways to tackle USB keyboard interference?
Hi Mike,
Well, when I unplug both the monitor and keyboard, the most of the offending "birdies" go away.? I had just hoped to be able to keep the keyboard plugged in.? Others are suggesting a
By
JonI
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#88496
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Re: ways to tackle USB keyboard interference?
Jon,
Interference to Softrock comes in 2 different flavors.
1. Interference coming through the audio connection ("ground loop") shows up as a symmetrical center hump, or some other symmetrical
By
vbifyz
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#88495
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