Hi, Works great for me with old and new notebooks as well as with my desktop. Used for I/Q processing sure. You will need also internal sound card (or some USB...
All I have concluded a set of tests this morning that gives me more confidence in the 30 meter harmonic performance using the new filter values. I am seeing...
According to the Micrometals web site (http://www.micrometals.com/materials_index.html): "The cores are manufactured to the AL values listed; the permeability...
It's a figure often quote in ham literature, it's supposed to produce a higher self resonant figure and Q factor. Also 70% to 80% of the core is not a "small...
Multiple winding layers increases parasitic capacitance (turn to turn). This has the effect of increasing the measured inductance as the test frequency...
Yes it survived (and I feel better too). Pulled the si570 with solder wick, two irons and patience. Used a hot air rework station to get it to settle onto...
... I wasn't disputing your measurement, just surprised how high it was! ... That sure would matter. I had a similar problem with a -6 toriod on 30/20m LP...
Hi, I have built some three standalone SI570 based oscillators and they all suffer from tuning noise, as you claim. I have built another one who claimS to...
I hope this is my final post on the subject. The production filter is now installed in my on-air Peaberry (identical RF section to the RXTX) with the following...
By way of introduction,I am a newbie interested in returning to amatuer radio after more than 50 years. That's right - I held my novice ticket when I was 14...
... From: "Orin" Subject: [softrock40] Re: Anyone built the Ensemble RXTX for 40-30- & 20 meters ? ... Orin, Yes, my two seem to have an A_L value of 3.8 73...
... Subject: [softrock40] Re: Ensemble RXTX for 40/30/20 debate Warren, I'm going to try to upset you now:) No filter, 3.6 watts into 50 ohms on 40m? Just...
... Subject: [softrock40] Re: KX3 and Si570 tuneing step noise ... Paul, Please let us know when you have tested this. And may I remind anyone with a recent...
Alan You are not going to upset me at all. I scratched my head when I recorded the results and I double checked them just because they did not make sense to me...
As I hit SEND one other possibility occurred to me. It could be that I had an intermittent cable connection to the resistive load. That has happened before and...
Good Morning All, For now all RXTX Ensemble kits shipped will include the capacitors such that the previous or new LP filter for 40m/30m/20m may be built. I...
Hi perhaps a version that is suitable for use with a transverter. I used an Ensemble TRX for transverter use and it worked well. Happy New year Clive GW0PPO...
... 05/01/2013 10:48 I see your dilemma, I feel this is going to run and run. The availability of choice to newbies like myself is sometimes a cause of ...
Hi, I've just got my ancient RXTX 6.2 working great on receive and using si570 kit for local oscillator tuning. Just about to try transmitting but wonder if I...
Hi, I've just got my ancient RXTX 6.2 working great on receive and using si570 kit for local oscillator tuning. Just about to try transmitting but wonder if I...
Hi Stuart Yes you do need to adjust the IQ gain and phase balance for HDSDR. Having just tilted at this windmill here are some things I learned. 1) You need a...
Hi Stuart, when in transmit mode you can measure with some equipment and calibrate with "Channel Skew Calibration for TX" from the Options menu. kind regards, ...
... Subject: [softrock40] Re: Transmitting with HDSDR ... Stuart You are familiar with the RX image rejection? Like RX the transmit image will be exactly...
John Welcome back! I, too, took a fifty-year break from ham radio and just returned last year. Look carefully at the FCC regulations. You may be able to get...
I second Rick's opinion. I was WN0ZHM in 1970 and left Ham Radio only to return a few years ago. I went through the licensing steps very quickly- maybe like...
I'm frankly a bit frustrated with this discussion which I've tried to follow. I've not finished my kit yet and want to do it right. Could someone please post a...
Hi Tony, Warren and Alan, Very interesting discussion on the filters for 20-30-40. Warren, I liked your thought that the Z of the filter may not be the same in...
