RXTX Ensemble and my computer situation...
- de EI7CLB, GQRP - 13150TrygMy RXTX Ensemble arrived in the post today and I am very keen to get QRV. I am worried though that my computer situation will be inadequate to use the rig. It is a bit frustrating as I thought that at least with the mac I stood a chance. I have an atom based netbook that I mentioned in a previous post and also a mac mini 1.83GHz dual core with 2GB of ram, and also a Raspberry Pi. I was hoping that between them all I might be able to get it all working but my searches for a solution are not very encouraging. Unfortunately I can't afford to buy another computer right now. Does anyone have some ideas about what I can do. I am a complete newb to SDR in practical terms though I have been interested in it since I first heard of it in 2009-ish and I am as keen as mustard about the technology. Any help would be very gratefully welcomed.Hi All,
- "A human being should be able to change a diaper, plan an
invasion, butcher a hog, conn a ship, design a building, write a sonnet,
balance accounts, build a wall, set a bone, comfort the dying, take
orders, give orders, cooperate, act alone, solve equations, analyze a
new problem, pitch manure, program a computer, cook a tasty meal, fight
efficiently, die gallantly. Specialization is for insects." — Robert Heinlein
- "A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." — Robert Heinlein
--- Oorspronkelijk bericht ---
Van: "Sid Boyce sboyce@... [softrock40]" <firstname.lastname@example.org>
Verzonden: 14 mei 2014 12:36
Onderwerp: Re: [softrock40] Re: softrock40
I bought one some time ago until I can get around to fixing a problem on my Marconi signal generator.
I have been thinking of adding a MAR-6 amplifier or 2 to it for PA testing.
With the Marconi I was able to test a 10W and the K5BCQ 20W PA standalone.
The 10W PA I built about 2 decodes ago - 1mW in for 10W out and accidentally I increased the sig gen output and saw a 45W sine wave output with no flat topping.
73 ... Sid.
On 14/05/14 04:17, allgyer@... [softrock40] wrote:
Disclaimer: I have no financial interest in this company or product.
For those interested in pursuing this a bit farther, here is an excellent, low cost signal generator.
AD9850 DDS Signal Generator Module 0 -30MHz Sine / Square Wave Frequency AD9851
I have one and it worked great until I inadvertently put the RXTX I was testing into transmit. It apparently does not react well to trying to swallow a couple of watts! I have a replacement and a spare coming and the first mod I will make is to put a 20 dB pad in the output to protect it!
This generator puts out +4 dBm in a very clean sine wave on any frequency from 0-30 MHz. There are several similar models on eBay in you search on "DDS Signal Generator" some at an even lower price. I can vouch for this particular one as I have used it and tested it. But I also would not hesitate to buy some of the other AD9850-51 based products advertised.
It will take a couple of weeks because it is coming from Hong Kong. But I can vouch for it as a cheap and extraordinarily useful product.
-- Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support Senior Staff Specialist, Cricket Coach Microsoft Windows Free Zone - Linux used for all Computing Tasks