My new DSP portable is on the way

FM receiver discussion
pe1etr
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Re: My new DSP portable is on the way

Post by pe1etr » 01 Apr 2019 15:28

satnipper wrote:
01 Apr 2019 15:21
I'm not a Band II dxer and I use a Perseus/Jag combination for MF.

However what I have received on my XHData is irrelevant. There are plenty of online testimonials (including on here) to the bang for the buck it represents. It even has lsb/usb which I don't think the Tecsun has.

But if you are happy with your Tecsun then jobsagudun.
Maybe you shouldn't recommend it willy-nilly then? If you read post #1 you'll see my particular requirements.

Peter

satnipper
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Re: My new DSP portable is on the way

Post by satnipper » 01 Apr 2019 16:34

Huh? I own the XHData and your requirements are hardly demanding: "The priority is FMDX but very good MW is also important."

The XHdata ticks those boxes and with ssb gives you ECSS possibilities on MF.

It's probably the best value travel portable out there at the moment. There are plenty of reviews substantiating my assertions.

However if you are happy with the Tecsun ainsi soit-il.

Nick Gilly
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Re: My new DSP portable is on the way

Post by Nick Gilly » 01 Apr 2019 18:18

Isn't the Radiowow R-108 a rebadged XHData? That's what it appeared to be on investigating. If it's cheaper than the XHData...
Good DX.

Nick, Whitchurch, Hampshire.

BW Broadcast RBRX Encore, Kenwood L-1000T, Yamaha T-2, Denon TU-800L, Kenwood KT-1100SD (modified), Yamaha T-85, Sony XDR-F1HD tuners, horizontal Körner 9.2 beam (Antennenland version), Yaesu G-450C rotator

pe1etr
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Re: My new DSP portable is on the way

Post by pe1etr » 01 Apr 2019 18:30

Nick Gilly wrote:
01 Apr 2019 18:18
Isn't the Radiowow R-108 a rebadged XHData? That's what it appeared to be on investigating. If it's cheaper than the XHData...
Nick the Radiwow R-108 and XHDATA D-808 are made by the same company. The R-108 is a stripped down, cheaper version of the D-808 without SSB and RDS. They are both clones of C. Crane radios which are made by Redsun in China. The R-108 is almost an exact copy of the CC Skywave (without weather band), and the D-808 is a different shape version of the CC Skywave SSB without Weather Band and with added RDS. It is unclear which company makes the clones but is could be Redsun itself. There is an agreement that the D-808 will not be sold to USA and Canada, but an eBay seller first imports them into Israel then sends them on to the USA, obviously for a premium.

Peter

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Re: My new DSP portable is on the way

Post by Nick Gilly » 01 Apr 2019 21:23

OK thanks Peter. The R-108 looked like it had exactly the same layout as the XHData, but if the XHData has RDS then it looks like it's worth a go.

Does the Tecsun you chose have RDS?
Good DX.

Nick, Whitchurch, Hampshire.

BW Broadcast RBRX Encore, Kenwood L-1000T, Yamaha T-2, Denon TU-800L, Kenwood KT-1100SD (modified), Yamaha T-85, Sony XDR-F1HD tuners, horizontal Körner 9.2 beam (Antennenland version), Yaesu G-450C rotator

pe1etr
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Re: My new DSP portable is on the way

Post by pe1etr » 02 Apr 2019 08:57

Nick Gilly wrote:
01 Apr 2019 21:23
OK thanks Peter. The R-108 looked like it had exactly the same layout as the XHData, but if the XHData has RDS then it looks like it's worth a go.

Does the Tecsun you chose have RDS?
Hello Nick,
Your welcome. I forgot to add that the D-808 looks almost exactly the same as another radio, the Digitech AR-1780, also made by Redsun in China for the Australian company Jaycar.
The XHDATA R-808 has the same features as the Digitech AR-1780, but the latter does not have the same quirks/ quality control issues. It is thought that the designers of the D-808 had access to the schematics of both the CC Skywave SSB and the Digitech AR-1780 from Redsun, did some reverse-engineering and designed to D-808 . Internally theXHDATA is different to both the Redsun-made radios, but has the appearance of the Digitech model.

The Digitech AR-1780 is a well-made radio and I've seen no quality control issues or poor performance complaints. Jaycar will post the AR-1780 overseas and they do have special offers sometimes. Of course it is more expensive than the D-808, especially taking into account postage costs and UK VAT. Several Americans have imported the radio from Jaycar with no problems. The Digitech AR-1780 both use AA batteries rather than a Lithium ion battery.
https://swling.com/blog/2017/11/review- ... ave-radio/

No, the Tecsuns don't have RDS.

Caveat Emptor

Peter

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John Faulkner, Skegness
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Re: My new DSP portable is on the way

Post by John Faulkner, Skegness » 02 Apr 2019 10:41

If I may throw this one in: I don't have any great experience of FM DXing using portable radios these days. In fact the only portable radios I have used tor FM DXing in the last few years were the Sangean ATS909 and the Degen DE1103. I could describe them both as 'very good', but the DE1103 was the better in terms of sensitivity and selectivity. It did suffer from a little intermod. in the presence of strong signals. Oh - and I have the good version of the DE1103 too. As you probably know, some production runs were not so good on sensitivity.

My curiosity has been aroused once again after seeing these reviews, I can't help wondering how the DE1103 generally compares to the receivers listed above. Maybe you or somebody else knows. It's my belief that the DE1103 would still pack a punch as a portable FM DX machine.

Thanks.

pe1etr
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Re: My new DSP portable is on the way

Post by pe1etr » 02 Apr 2019 13:38

John Faulkner, Skegness wrote:
02 Apr 2019 10:41
If I may throw this one in: I don't have any great experience of FM DXing using portable radios these days. In fact the only portable radios I have used tor FM DXing in the last few years were the Sangean ATS909 and the Degen DE1103. I could describe them both as 'very good', but the DE1103 was the better in terms of sensitivity and selectivity. It did suffer from a little intermod. in the presence of strong signals. Oh - and I have the good version of the DE1103 too. As you probably know, some production runs were not so good on sensitivity.

My curiosity has been aroused once again after seeing these reviews, I can't help wondering how the DE1103 generally compares to the receivers listed above. Maybe you or somebody else knows. It's my belief that the DE1103 would still pack a punch as a portable FM DX machine.

Thanks.
The PLL version of the Degen DE1103 is an FM DX machine when modified with 80kHz filters

Edit I think you didn't see the video lnk on page 1
https://www.youtube.com/watch?v=pHHceZulLzY&t=124s

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John Faulkner, Skegness
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Re: My new DSP portable is on the way

Post by John Faulkner, Skegness » 02 Apr 2019 14:24

I may have missed this video, or even forgot that I saw it. My questions was how the DE1103 compares to the receivers you list in this thread.

Franco Martelli
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Re: My new DSP portable is on the way

Post by Franco Martelli » 02 Apr 2019 15:05

John Faulkner, Skegness wrote:
02 Apr 2019 14:24
I may have missed this video, or even forgot that I saw it. My questions was how the DE1103 compares to the receivers you list in this thread.
That's the most interesting point: how is the performance, during a Es or a tropo opening, of these DSP portable radios compared to a modified PLL DE 1103 (110+80 filetrs) or even a modified ATS 909 (110+110)?
Should I break my piggy bank for a D-808 or one off the PL- series?
Rxs: Degen DE-1103, Sangean ATS-909, and the newcomer Tecsun PL-398 MP

pe1etr
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Re: My new DSP portable is on the way

Post by pe1etr » 02 Apr 2019 18:24

John Faulkner, Skegness wrote:
02 Apr 2019 14:24
I may have missed this video, or even forgot that I saw it. My questions was how the DE1103 compares to the receivers you list in this thread.
On par with the Tecsun PL-398MP (same performance as the Tecsun PL-390 in the video). Ahead of the others.

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Re: My new DSP portable is on the way

Post by John Faulkner, Skegness » 02 Apr 2019 20:10

Interesting. Thanks Peter.

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Patrick73
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Re: My new DSP portable is on the way

Post by Patrick73 » 02 Apr 2019 20:49

I thought the PL398MP would be slightly more sensitive and / or selective compared to the 390 on FM. From what I understand, it's not worth replacing my old 390 with a 398, except maybe for MW DX'ing.
Patrick
Main interests : NDB, MW & FM DX'ing
REU Editor http://www.classaxe.com/dx/ndb/reu

pe1etr
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Re: My new DSP portable is on the way

Post by pe1etr » 03 Apr 2019 08:21

Patrick73 wrote:
02 Apr 2019 20:49
I thought the PL398MP would be slightly more sensitive and / or selective compared to the 390 on FM. From what I understand, it's not worth replacing my old 390 with a 398, except maybe for MW DX'ing.
Hello Patrick, the three PL-39x versions all have the same specs. I don't have the PL-390 to make a comparison.

Peter

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Re: My new DSP portable is on the way

Post by pe1etr » 03 Apr 2019 09:01

John Faulkner, Skegness wrote:
02 Apr 2019 20:10
Interesting. Thanks Peter.
You're welcome John. My Firefox add-on couldn't download the Part 1 comparison on sensitivity probably due to a copyright claim. I got a new add-on which works. I watch youtube videos offlne. In the video description a note is made about overload of the PLL sets close to transmitters.

https://www.youtube.com/watch?v=2QCFXIM-o_E&t=209s

Peter

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John Faulkner, Skegness
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Re: My new DSP portable is on the way

Post by John Faulkner, Skegness » 03 Apr 2019 09:58

Those damn copyright claims. I know all about them.

Yes, the overload can indeed be a problem. I remember how the DE1103 would suffer when hilltopping up in the Wolds. Still a great receiver though. Just a shame about those variable performances between different production runs.

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Re: My new DSP portable is on the way

Post by Tim Bucknall » 04 Apr 2019 09:15

Thanks Peter
Rx: Burkhardt Reuter RDR54D1, Elad FDM-S2, Airspy HF+ w/ HS Publications 6 Element R3 -R5 Yagi on rooftop rotator V/H polarization options. Pira P275 RDS analyser

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