Random Radio


#1390

I took delivery of an XHDATA D-808 portable today.

Initial tests yielded relatively poor FM performance when using the default (short) whip antenna. My Tecsun PL-390 easily outshone it; for example, 88.0 MHz Nimmitabel was clearly received on the 390 while the XHDATA got nothing! Upon performing an antenna transplant using the 1 m whip previously attached to the Tecsun, reception markedly improved. The performance was now roughly equal to a Sangean PR-D15 on FM. RDS from Canberra stations Hit 104.7, Mix 106.3, and 2XX was obtained and there was a good period of aircraft scatter from 107.1 and 107.9 Coonabarabran.

I briefly tried AM; performance was good with notably low noise reception, resulting in clean crisp audio despite the small speaker size.

The XHDATA suffers from processor noise on some FM frequencies which can mask weaker signals. Overall, it’s a handy performer considering its compact size, RDS capability, and rotary tuning (100 kHz steps). I give it 3.5/5.


#1391

Just wondering has anyone got one of these?

Can you actually listen to am radio? I am not sure of the aerial arrangements to be portable enough to carry in laptop bag, I do have a DAB radio USB stick.


#1392

It has a range of 25MHz (25,000KHz) to 1.7GHz.

AM Radio is between 500-1700KHz.

I would imagine that it can tune into frequencies between 25MHz and 1.7GHz and interpret them as AM signals, but the stick can’t tune into the “medium wave” AM that most broadcasters use. You might be able to pick up shortwave radio broadcasts at the top of the shortwave band (the SW band is 2.3MHz - 26.1MHz).


#1393

Thanks mubd.


#1394

The wide range of the receiver makes me wonder what the quality would be like. Isn’t it that the wider the band, the lower the quality or has that ended with digital receivers? Love to hear from tech people and engineers, @RFBurns et al.


#1395

Not sure on that one, but that reminds me I did read somewhere that greater sensitivity or selectivity usually comes at the expense of sound quality.


#1396

I’m not sure about the receiver itself, but I would imagine that the antenna being used would certainly be a limiting factor, as simple antennas only really work optimally in a certain band.


#1397

Though the antenna situation would affect all receivers somewhat equally.


#1398

I think that must be it, thanks @mubd


#1399

Generally in the old days, a narrow band receiver would be best, so as to block out the nearby frequencies from interfering, & this could be done using a physical component band pass filter.

With something like this being digital, & with software doing all the processing, a wide-band “tuner” is possible with little problems, you could build a bandpass filter into the software, that would change it’s frequency & bandwidth depending upon what was being tuned.
e.g. You could program a narrow band pass filter that would only pass say 400kHz for an FM station being tuned, but the bandpass filter could be wider to pass 5 - 7MHz should a DAB+ station be tuned.

As you change stations, the passing frequencies though the filter would change, if you scanned a band or 2, the filter could be turned off completely, to allow passing & scanning of all band frequencies, the physical tuner can pass.

In this case I’d imaging AM or MW frequencies were left out, because of the physical antenna length that would need to be used for reliable reception, & even if they could make a ferrite core antenna that could just plug in, it’d still be bigger than the USB stick itself.


#1400

Behold- the ultimate Wuss FM playlist:


#1401

Some additional suggestions for the playlist:

*Give A Little Bit - Supertramp
*While You See A Chance - Steve Winwood
*My Life - Billy Joel
*Simply Irresistible - Robert Palmer
*Solid Rock - Goanna
*Sister Golden Hair - America


#1402

How dare you! :stuck_out_tongue_winking_eye:

If only they wrote songs like that these days.


#1403

I’ve decided to start a Twitter campaign to get WS FM to play Chilliwack’s ‘My Girl (Gone Gone Gone)’. It was a minor hit back in its day (1981) and was occasionally played on 2CC and 2XL.

The WS FM Twitter page is here for anyone who wants to enlist!


#1404

Has anyone bought this type of radio before?


#1405

No. None of us are cool enough to wear something like that.


#1406

I remember getting a similar thing in a showbag from the Easter Show (headphones with an integrated AM/FM radio).

The audio quality was terrible, but to be fair it wasn’t an actual pair of ear muffs. I would expect that power tool brands would make their own which are of decent quality, like this DeWalt brand one:

https://www.amazon.com.au/DEWALT-DPG15-Digital-Hearing-Protector/dp/B01M34TNFI


#1407

Has anyone worked a gig or on a show that has been told it won’t be renewed the following year yet are still on air?

How did you feel? How did your team feel? How did you keep going? Did you put out great content despite knowing your contract would not be renewed?


#1408

in 2003 I worked as a producer for a local radio breakfast shift on a community station. Around september i was pulled into a room and told i would be terminated at the end of the year.

I had no qualms - thats radio for you. I ended up treating each show as a potential resume as i never knew who was listening and put out the best show i could. Did i get a new job? nope. but i believe those 2 months of shows we did after i was told i was gone were some of the best we put out.

one member of that breakfast team has moved onto bigger and better things and is still in radio today and hosting a week day shift on the ABC and i like to think i had some part in that


#1409

What’s your top 3 music stations you listen to at home. (Not internet radio) at your location.

  1. SWR FM 99.9 I enjoy the mix of 70s to now. Some great shows too like awesome 80s on weekend. The organ show is great too. The breakfast show is great radio in my view suits my mood in the morning. I also discover some new music. Pop and Rock. Like C91.3 when it first launched.
  2. HHH FM 100.1 FM Has some great evening shows, they had a rare live rock show. The chart show. Some 60s , 70s and 80s show. You can hear more 60s music in FM stereo.
  3. Triple m during the day. At my work I can sometimes listen a bit of radio using my dabby stick. I can’t get the community stations in the office.