The latest QST magazine (October 2017) includes a detailed independent review of the performance of the RSP2pro. It tabulates extensive measurements from their dynamic testing and they summarize these impressive results saying that the RSP2pro has “A Lot of Capability in a Small Package”. QST magazine is available to all ARRL members. We have their kind permission to publish their review and measurements for the wider global audience. Simply click on the picture of the magazine cover below:
You don’t need to own an RSP from SDRplay to use SDRuno. Those people who already have an RTL-SDR dongle, can use our SDRuno software for free. So can owners of many other SDRs which support an EXT/IO interface. We’ve just released a new video guide to using the “SDRuno EXT/IO edition”:
Follow the link in the YouTube description to RadioforEveryone’s excellent guide to using SDRuno with other SDRs
Lucas Teske posted this GOES-13 image received during the 21st August eclipse using the RSP2 and XRIT Decoder.
To find out more about the Open Satellite project and how to receive these images using Lucas’ software – visit his site below:
SDRplay had the the pleasure of supporting DXers and shortwave listeners at the jubileum European DX Conference in Tampere, Finland last weekend. It was a great celebration, as this year was Finland’s centennial and the European DX Council’s 50th anniversary. The meeting was organized by The Finnish DX Association (soon to be 60 years old) and the local Tampereen DX-Kuuntelijat club who were celebrating their 50th anniversary.
Many thanks to Ismo Kauppi who hosted the session where we presented
Tom, the author of Win4K3Suite has released a new version of Win4K3Suite which supports broadcasting of SDRplay data for use with N1MM+ Contest logging software and their new spectral display. He plans the Yaesu version to come out on Friday.
Take a look at the video on: https://youtu.be/_769Dli_lJo
To find out more about the N1MM+ Spectrum Display feature within the N1MM+ Logger – go to http://n1mm.hamdocs.com/
This week, here in the UK, The RSGB plays host to YOTA 2017 – Youngsters on the Air – there are 80 young people under the age of 26 from 27 countries – from all over IARU Region 1 as well as Japan — representing their national amateur radio societies at this event, which is taking place in Gilwell Park, UK. An International Space Station ARISS contact has been planned for astronaut Paolo Nespoli IZ0JPA, using the call sign NA1SS and the (YOTA) event, call sign GB4YOTA, today, Tuesday, August 8, 2017 at approximately 18.38 UTC. This will be a direct radio contact, operated by GB4YOTA.
Downlink signals will be audible in the British Isles and parts of Europe on 145.800 MHz FM (+/- 3kHz doppler effect). (August 10th update – there were technical difficulties but contact was made 90 minutes later – see and hear the whole event and both sides of the conversation on this RSGB video https://youtu.be/b3wPGH3VFPQ )
Coming up this weekend is the peak of the current Perseid meteor shower with the 12th August being the most intense. Here is where an RSP can really come into its own, allowing you to explore meteor scatter on a wide range of frequencies, and even record 10 MHz chunks of spectrum for future analysis, using the recording feature in SDRuno.
Later in the month, the solar eclipse will be a big event in the USA with scope for some serious propagation experiments. Accessing remote RSPs at different locations is a great way to find out more about the way “Grayline” propagation works. For more on Grayline and Meteor scatter propagation – go to http://www.astrosurf.com/luxorion/qsl-propa5.htm
People are asking us for advice on where they should turn for help tapping into their IF in order to use an SDR as a panadapter. Here in the UK, ML&S provide help by undertaking the work themselves, but for those who would like to make their own modifications, Dave, KD2C, is now providing suitable buffer/amp boards and is very happy to provide them and support people making their own modifications.
His Hi-z IF Tap Panadaptor Buffer/Amp will allow you to tap the IF in just about any receiver or transceiver with no degradation to the receivers IF signal path. The boards small footprint allows for easy installation (1 x 1 5/8).
Each board incorporates a low pass filter designed specifically for your rig’s IF frequency. The output can be routed to the RSP1 or RSP2 to create a panadapter
Each assembled board is made to order based on your specific rigs IF requirements.
The cost is $25 per board plus shipping.
A Connection Kit is available for $7, this includes:
15 in. – RG 178 Output Cable
15 in. – Red & Black 26 AWG Power Connection Wires
7 in. – 30 AWG IF Tap Wire.
1 – SMA, BNC or RCA Female Panel Connector (Please specify when ordering)
1 – 1×2 Strip of Double Sided 3M Foam Tape
Shipping: $3 for US $10 for Canada & Mexico $14 for All Other Countries
You can contact Dave via email on email@example.com ( he is happy to support customers worldwide)
Above: a screen shot of KD2C’s Kenwood R5000 on field day using the PAT60M5 board
One of our customers recently wrote to us with the following thoughts regarding locating the SDRplay RSP2 a long way from the PC. He wrote
“An issue for many RSP2 users is the cost of long lengths of LMR-400 and LMR-600 or equivalent cable which costs around $115 USD for 50ft. So if the antenna is around 50ft from the PC running SDRuno or SDR Console, then it is much less expensive to locate the RSP2 at the antenna and use a 50 ft active USB 2.0 extender cable from the PC to the RSP2. The 50ft USB 2.0 extender cable costs $11.72 USD.
I tested a 50ft USB 2.0 480Mbps extender cable at the following URL: http://www.ebay.com/itm/50FT-USB-2-0-480Mbps-Active-Repeater-M-F-Extension-Cable-Adapter-Cord-High-Speed/381680978914?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
This cable works great in the application I have. The one at the link above will support up to 250mA and works off of the power of the PC USB port (no external power supply). So it will run the RSP2 (170mA) and up to 80mA on the bias T at the same time. Also, you can use a standard USB cable with it. I am using a 10ft USB cable with it for a total distance of 60ft.
This is currently being used for reception of GOES 13, 15, and 16 signals at 1.691 to 1.694 GHz with no perceptible difference in reception. I suspect it will work well regardless of the reception frequencies of the RSP2 since it appears to have good shielding, but I have not tested across all frequency bands to see if the USB cable and data signals impact reception. I thought your customers might like to know about it though, since this has the potential to provide a low cost solution to displace the use of expensive coaxial cable.
Consider that the cost savings for a 50ft cable alone almost pays for another RSP (though the RSP needs to be placed in a weatherproof enclosure). “
Regarding outdoor operation, the RSP2 is designed to operate from 0C to 50C, but may possibly work down towards -10C. So for many locations there is potential to locate the RSP in a waterproof container out at the antenna. Using a $12 extender for USB2.0 instead of a cable and driver amplifier is a considerable cost savings. Let’s say 65ft of cable is needed. So you could use a $12 50ft USB2.0 extender plus a 15ft standard USB2.0 cable $7. A $19 solution locating the RSP2 at the antenna. By comparison, using 65ft of LMR-600 is around $120 and then a $140 line driver amplifier is needed. This is a $260 solution to the same issue, a $241 difference. The point being, for the difference in cost, it saves more than enough to buy another RSP2. So it potentially becomes cost effective to then use an RSP2 for each antenna when applied to GHz applications.