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TOPIC: Older SDR2 QRP question

Older SDR2 QRP question 31 Dec 2019 23:46 #1

My first post. I am considering purchase of an older SunSDR2QRP transceiver, this will be my first SDR Radio. I am computer fluent in both Linux and Windows so the software and the idea of running a radio from a computer does not intimidate me.
Question- Is the hardware for the SDR2QRP consistent from the time Expert started manufacturing it to the current model for sale as new today --or have there been hardware revisions over the life of this model ?
Any information would be very much appreciated.
Regards, Happy New Year & 73
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Older SDR2 QRP question 12 Jan 2020 13:45 #2

  • digitoils
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Hello KF4VAR,
my QRP is from march or from the 3rd quarter of 2018. Serial number SN: EED032018XXXXX. It is designated as version: 7.0 and has the PCB revision: 1
I don't think there are different hardware versions because in my opinion there are very few QRP devices in circulation.

The transceiver is a nice, small and powerfull device. However, no bios bug fixes are expected from me for the future, e.g. the 10 Mhz clock input, not even for the high-priced mb1, which has the same problem. However, the MB1 has a local TCXO of +/- 0.5 ppm and not like the QRP of +/- 2.5 ppm. I am assuming that EE had the bios programmed in Taiwan or that the current programmers have no skill in debugging and programming the bios because the programming is very hardware-related. But maybe I'll be surprised in 2020.

So if you can live with this restriction, buy one.

Last Edit: 12 Jan 2020 13:46 by digitoils.
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The following user(s) said Thank You: expat42451

Older SDR2 QRP question 14 Mar 2020 22:40 #3

Hi Uwe
Many thanks for the kind information. Also please accept my apology for not getting back to thank you until now. I deeply appreciate your taking the time to read my post and provide a great and informative reply. Again I am sorry for being so late in saying thanks.

I am now looking at an SDR2 Pro. So I feel sure I will have a few more questions as the days pass.

Again many thanks for the kindness
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