I didn't know that. Thanks for the information. I will definitely try that on my Tecsun PL. 310ET

@DXPedro

Жыл бұрын

Glad I could help!! 🤘🏼😎📻 Thanks for watching

Makes sense. Like if you look at SDR waterfall the sidebands are always strongest closest to the carrier. So the ETM would detect those signals a lot easier with less noise. It's a pretty nice feature that has greatly enhanced my shortwaving being able to scan the whole spectrum like that. I'm discovering lovely new things I would've missed before from taking too long to spin the dial. Good article :3

@DXPedro

3 жыл бұрын

glad it could help, man. :) 73s

@kishascape

2 жыл бұрын

@@DXPedro welcome :3 I’m surprised you just started shortwaving late last year. I always thought you were a veteran hehe

@DXPedro

2 жыл бұрын

@@kishascape age wise im entering the veteran age lol. but radio wise not even a toddler. xD have a great week, man.

@kishascape

2 жыл бұрын

@@DXPedro Thanks you too man. Many good DXings to you :3

In case anyone isn't aware, there's a difference between the ETM and the ATS memory found in Tecsun radios that have both systems. The ETM is designed to be less sensitive than ATS so that it (ETM) picks up only the stronger broadcast stations and ignores less powerful signals like harmonic frequencies and background static. It would be interesting to see how the 1 kHz bandwidth filter picks up signals vs 6 kHz when band scanning using the ATS instead of ETM. For those who have the PL-330, there's an undocumented feature in which you can adjust the ETM scanning rate by long pressing the "6" key and adjusting the scanning parameter. I found out that the slowest ETM scan rate stores the most frequencies although some of the stations may be "useless" background noise. The PL-310ET sadly doesn't have this ETM scan rate feature found on the PL-330 though.

@DXPedro

2 жыл бұрын

Bravo! Thanks for your info, mate! :) 73

@FrancoDX

2 жыл бұрын

For anyone interested, using 1 kHz on the bandwidth filter on ATS improves sensitivity on the Sihaudon R-108 receiver. Like the Xhdata the Sihaudon doesn’t have an ETM function. I’ll have to try it on my Tecsun PL-680 as that doesn’t have the ETM feature either. Interesting video, there seems to be no end to the hidden possibilities with these modern receivers 👍🏼

@StratmanII

2 жыл бұрын

@@FrancoDX I've tried ATS memory scan on my PL-660 on narrow bandwidth mode before and I noticed just a negligible increase in the number of stations memorized. Tecsun doesn't publish the frequency of wide and narrow bandwidth settings for its PL-6xx series but I don't think they used 1 kHz for the narrow B/W filter. 1 kHz is too narrow for a receiver with just a basic wide/narrow bandwidth and my PL-660 sounds like between 2.5 kHz to 3.5 kHz on narrow. On wide it sounds like my PL-990's bandwidth on 5 kHz though. If there's an annoying quirk with the PL-660 (and possibly the PL-680, since they share the same electronics), its ATS also memorizes the bandwidth setting. I normally listen to shortwave stations on wide and if the bandwidth is set to narrow, all the stored frequencies after doing an ATS scan will be in narrow bandwidth. ☹️ When I have the time, I'll test 1 kHz B/W setting on my Sihuadon R-108 to see if its ATS stores more frequencies compared to 6 kHz. 📻😀

@FrancoDX

2 жыл бұрын

@@StratmanII Thanks for the reply. I still haven’t got around to trying it on the PL-680 but take your word for it! 🙂 There’s a definite improvement on the Sihaudon in my opinion choosing the 1 kHz bandwidth. Not every signal is useful but it does pick out some weak signals that are audible that the ATS doesn’t do on 6 kHz. Always good to find out more about these receivers 👍🏼

@StratmanII

2 жыл бұрын

@@FrancoDX The PL-6xx series and the desktop S-2000 are the only three Tecsun receivers that have only wide/narrow bandwidth options plus a VHF AM air band. None of these models make use of a DSP chip; they are all dual conversion PLL synthesized receivers. I think the reason why multiple bandwidth filters are available with other dedicated shortwave Tecsun/XHDATA/Sihuadon radios is because they all utilize either a Silicon Labs Si 4734 or 4735 DSP chip (the 4735 has SSB) and these DSP chips provide a total of 7 bandwidth filters. 📻👍🏼 That said, only the D-808 makes full use of the 7 available filters while Tecsun, for some reason offers no more than 5 bandwidth options. The PL-330 gives you just 3 bandwidth filters for AM bands (5 for SSB) and its narrowest frequency is only 2.5 kHz on shortwave. Pretty disappointing for a receiver of its price, since the cheaper PL-310ET has 5 bandwidth filters with 1 kHz as its narrowest. 🙄

Possible on pl380?

@DXPedro

2 жыл бұрын

Creo que no, BK. No le he visto aún. Pero si tienes alguno proba.

battery lasts very little ,volume encoders breaks after months of use ,at least on mine this is what happened ,the reception is great and sound too ,but quality is reflecting the price , not worth to pile with all other cheap junk ,don't make garbage

@DXPedro

24 күн бұрын

@@jammaleck weird: my batteries last for weeks. Radio still working very good