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Satellite PC Card Receivers, Internet by Satellite
TBS5520SE USB What's the catch?
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<blockquote data-quote="s-band" data-source="post: 1026960" data-attributes="member: 407744"><p>The catch is that blind scan is flaky.</p><p></p><p>I bought one and noted that the frequency scan is very fast compared to the 6983 and the RF level reported by Crazyscan is ~16dB higher than the TBS6983. The 6983 is reasonably accurate. I've only played with it for a while so far on a W7 quad core Q8300 PC, the same one I use for the TBS6983.</p><p></p><p>I can't see what the front end chip is but the demodulator is an <a href="https://www.silabs.com/products/tv-and-video/digital-tv-and-satellite-demodulators/si21832-822-812-802" target="_blank">SI21832</a></p><p></p><p>Blind scan takes ages and doesn't find as much as the 6983. It also did a strange thing when scanning just 11440-11465 (using the cursors to define the scan width). It found 11449 then went past 11455 then jumped back to the 11449 and re-discovered it then 11455 appeared then it repeated in a loop never reaching the end of the scan at 11465.</p><p></p><p>[ATTACH]110313[/ATTACH] 5520SE Scan</p><p></p><p>[ATTACH]110314[/ATTACH] 6983 Scan</p><p></p><p>Double clicking on a transponder only finds it if it is relatively wide. The narrower TPs required the symbol rate to be entered and blind scan switched off. Clicking on 11456 caused it to apparently lock on to 11450 but it wasn't a valid lock (see constellation):</p><p></p><p>[ATTACH]110315[/ATTACH]</p><p></p><p>11458.2MHz 543ks/s wasn't found by either card but could be locked by direct entry of the symbol rate. 5520 is the left hand one of the two pairs below.</p><p></p><p>[ATTACH]110316[/ATTACH] [ATTACH]110317[/ATTACH]</p><p></p><p>Fransat and RAI multistreams worked but would only lock if the blind scan was enabled in constellation monitoring (i.e. the opposite to narrow TPs). Another weird thing, when the data is streamed, the SNR indcates zero. That's the same for multistream and single stream.</p><p></p><p>[ATTACH]110318[/ATTACH] [ATTACH]110319[/ATTACH]</p><p></p><p>I have an old installation of DVDream which has outdated channel info stored. The 5520 appeared to be OK with that where the channel info was still valid.</p><p></p><p>I tried DVB-T but I didn't do much more than check it works.</p><p></p><p>[ATTACH]110322[/ATTACH] [ATTACH]110323[/ATTACH] [ATTACH]110324[/ATTACH]</p><p></p><p>Initial impression is that this</p><p></p><p>is right. However, it is small, does DVB-T and is easier than carrying a desktop PC to the dish when playing.</p><p></p><p>[USER=391236]@CrazyCat[/USER] I was using Crazyscan 1.0.2.148 with StreamreaderEx 1.2.4.36 Do you have any comments on the results? (Ok, I won't use it on a VM;-)</p></blockquote><p></p>
[QUOTE="s-band, post: 1026960, member: 407744"] The catch is that blind scan is flaky. I bought one and noted that the frequency scan is very fast compared to the 6983 and the RF level reported by Crazyscan is ~16dB higher than the TBS6983. The 6983 is reasonably accurate. I've only played with it for a while so far on a W7 quad core Q8300 PC, the same one I use for the TBS6983. I can't see what the front end chip is but the demodulator is an [URL='https://www.silabs.com/products/tv-and-video/digital-tv-and-satellite-demodulators/si21832-822-812-802']SI21832[/URL] Blind scan takes ages and doesn't find as much as the 6983. It also did a strange thing when scanning just 11440-11465 (using the cursors to define the scan width). It found 11449 then went past 11455 then jumped back to the 11449 and re-discovered it then 11455 appeared then it repeated in a loop never reaching the end of the scan at 11465. [ATTACH]110313[/ATTACH] 5520SE Scan [ATTACH]110314[/ATTACH] 6983 Scan Double clicking on a transponder only finds it if it is relatively wide. The narrower TPs required the symbol rate to be entered and blind scan switched off. Clicking on 11456 caused it to apparently lock on to 11450 but it wasn't a valid lock (see constellation): [ATTACH]110315[/ATTACH] 11458.2MHz 543ks/s wasn't found by either card but could be locked by direct entry of the symbol rate. 5520 is the left hand one of the two pairs below. [ATTACH]110316[/ATTACH] [ATTACH]110317[/ATTACH] Fransat and RAI multistreams worked but would only lock if the blind scan was enabled in constellation monitoring (i.e. the opposite to narrow TPs). Another weird thing, when the data is streamed, the SNR indcates zero. That's the same for multistream and single stream. [ATTACH]110318[/ATTACH] [ATTACH]110319[/ATTACH] I have an old installation of DVDream which has outdated channel info stored. The 5520 appeared to be OK with that where the channel info was still valid. I tried DVB-T but I didn't do much more than check it works. [ATTACH]110322[/ATTACH] [ATTACH]110323[/ATTACH] [ATTACH]110324[/ATTACH] Initial impression is that this is right. However, it is small, does DVB-T and is easier than carrying a desktop PC to the dish when playing. [USER=391236]@CrazyCat[/USER] I was using Crazyscan 1.0.2.148 with StreamreaderEx 1.2.4.36 Do you have any comments on the results? (Ok, I won't use it on a VM;-) [/QUOTE]
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TBS5520SE USB What's the catch?
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