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- Subject: Re: [CapeDX] SDRplay
- From: Mark Connelly <markwa1ion@xxxxxxx>
- Date: Thu, 29 Sep 2016 22:42:08 -0400
- Delivered-to: irca@xxxxxxxxxxxxxxxx
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I would presume that HDSDR can do scheduling on SDRplay since it does it with Perseus.
In fact the only thing for which I use HDSDR is scheduling. I always play back Perseus captures with the Perseus software.
I'm guessing I would do the same thing with SDRplay: use HDSDR for scheduled recordings (if it can actually do those) and SDRuno for playback. Or wait for SDRuno to get updated with that capability if that's what needs to be done.
Dynamic range isn't that much of an issue here since unamplified terminated loops don't deliver massive maximum signals. The local station WBAS on 1240 is not that much stronger than the bigger night skip signals such as WBBR 1130. The noise level at night is largely set by a combination of local electrical noise, station slop, and lightning static. If an incoming signal is sub-microvolt, it is most likely sub-noise. This isn't central Alaska, the Australian outback, or Easter Island. The most densely populated (and RF-loaded) area of the US is the I-95 VA to MA corridor and that's all within 500 miles.
Based on several DXers' comments I think I will give the SDRplay a try. It's certainly not big money to have another SDR in the "stable" even just to cover the case of the Perseus going down during a DXpedition or an above-average DX session at home. VHF capability is certainly another selling point.
Mark Connelly, WA1ION
South Yarmouth, MA
-----Original Message-----
From: 'Allan Dunn, K1UCY' always_faithful@xxxxxxxxxxx [CapeDX] <CapeDX@xxxxxxxxxxxxxxx>
To: CapeDX <CapeDX@xxxxxxxxxxxxxxx>
Sent: Thu, Sep 29, 2016 8:23 pm
Subject: Re: [CapeDX] SDRplay
On 9/29/2016 7:53 PM, Bruce Conti contiba@xxxxxxxxx [CapeDX] wrote:
Guess I've been out of the loop on this one. What's SDR#?
It was a popular SDR software package. With the EXTIO capability it could run various radios including dongles, .Winradio's and I believe Perseus. Suddenly the author removed EXTIO capability in his updates catching users by surprise. Some think the author wanted to boost his SDRSPY receiver and lock out the competing SDRPlay, but the author says people were stealing his code. Obviously I don't know how much either one influenced his decision.
SDRuno allows multiple virtual receivers that can run simultaneously so long as they are within the 10MHz bandwidth. Allows you to compare your TA mw catches with parallels on 49 and 31 meters.
I also read that the SDRplay ADC is only 12 bits vs. 16 bits typical in higher end SDR receivers. I wonder how SDR performance differs between 12 and 16 bits? Maybe lower dynamic range with only 12 bits?
i honestly don't know. I paid $800 for Winradio receivers a few years back (some now cost double that) and $149 for the SDRplay.
Allan
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Posted by: "Allan Dunn, K1UCY" <always_faithful@xxxxxxxxxxx>
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