tag:blogger.com,1999:blog-35901825.post3503568415677758551..comments2024-03-19T06:03:40.451+10:00Comments on marxy's musing on technology: AirSpy HF+ review - a nice SDR receiverPeter Markshttp://www.blogger.com/profile/13007012724570360389noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-35901825.post-18043258315728926582018-02-01T19:38:45.957+10:002018-02-01T19:38:45.957+10:00@roger, it's a good question. Given the amount...@roger, it's a good question. Given the amount of noise on HF it is certainly sensitive enough to hear that noise - any extra sensitivity just amplifies the noise.<br /><br />I will try to do a comparison of receiving WSPR on a conventional radio compared to the HF+. My guess is that under circumstances where there is a very strong near by signal a conventional rig would be better than an SDRPeter Markshttps://www.blogger.com/profile/13007012724570360389noreply@blogger.comtag:blogger.com,1999:blog-35901825.post-30321303875366533412018-02-01T19:08:32.778+10:002018-02-01T19:08:32.778+10:00Very interested in the review but could you give m...Very interested in the review but could you give me some idea of the performance compared with a 'standard' conventional analogue transceiver? Is it more sensitive, does it pull stations in out of the noise better, etc.Anonymoushttps://www.blogger.com/profile/02573373466778222895noreply@blogger.comtag:blogger.com,1999:blog-35901825.post-39853684292685624882018-01-14T14:30:19.136+10:002018-01-14T14:30:19.136+10:00You write: "VK7 was consistently -27dB with t...You write: "VK7 was consistently -27dB with the SDRPlay and was just -13 on the AirSpy HF+" That reflects the difference in NF. Add a 15 dB LNA to your SdrPlay and it would be the same as the HF+. You also write: "I have an SDRPlay and it's a terrific SDR receiver although the proprietary driver is a solid negative to me" There is actually an open source driver here: httpsLeif Åsbrinkhttps://www.blogger.com/profile/00790234182304915971noreply@blogger.comtag:blogger.com,1999:blog-35901825.post-50399570090478844122018-01-14T08:36:35.575+10:002018-01-14T08:36:35.575+10:00David Eckhardt, I don't know about your SDRPla...David Eckhardt, I don't know about your SDRPlay, but my RSP1A runs on SDR Console and HDSDR too... Going back to topic I agree that the HF+ has a lot more going to it than the RSP1A, which is the only SDRPlay SDR I have tested.Bjarne Mjeldehttps://www.blogger.com/profile/03405758708145585467noreply@blogger.comtag:blogger.com,1999:blog-35901825.post-36536991505746181542018-01-13T11:44:47.812+10:002018-01-13T11:44:47.812+10:00Several of us here in N. Colorado have found the S...Several of us here in N. Colorado have found the SDRPlay to be virtual junk when it comes to 'scientific' applications. The AirSpy excels in about every test we've run. Spend another $50 and go with the AirSpy. Again, the SDRPlay is only good for causal listening. It's basically crap and runs only on SDRUno. I'm not a fan of SDRUno by any stretch of imagination!!! Anonymoushttps://www.blogger.com/profile/09984055417751495382noreply@blogger.comtag:blogger.com,1999:blog-35901825.post-53662163846790823622018-01-13T05:56:30.212+10:002018-01-13T05:56:30.212+10:00Thanks John, actually this result seems too good t...Thanks John, actually this result seems too good to be true. I will try to do some better comparisons in the future. Certainly there's no doubt that the HF+ is a very good SDR compared to the SDRPlay.Peter Markshttps://www.blogger.com/profile/13007012724570360389noreply@blogger.comtag:blogger.com,1999:blog-35901825.post-18732773561632355232018-01-12T22:50:26.407+10:002018-01-12T22:50:26.407+10:00"a VK7 was consistently -27dB with the SDRPla..."a VK7 was consistently -27dB with the SDRPlay and was just -13 on the AirSpy HF+"<br /><br />I wish more receiver comparisons would make use of the fact that WSPR assigns an actual number to their differences. Thanks for the review.<br /><br />73 - John AE5XJohn AE5Xhttps://www.blogger.com/profile/06884676867006975179noreply@blogger.com