Tag Archives: Tecsun H-501x

Dan updates his Tecsun S-2200x Review

Many thanks to SWLing Post contributor, Dan Robinson, who shares this update to his original Tecsun S-2200x review:

TECSUN S-2200x: Some Updates

by Dan Robinson

Since my original Tecsun S-2200x review, I have run additional tests on the S-2200x and have the following observations, and responses to some comments. I continue to test this receiver, but conclude that really if one has to have just one radio – which I think is usually not the case – one cannot really go wrong with any of the Tecsun portables, whether the 2200x, or S-8800, H-501, or PL-990. With that said, here are my additional observations on the 2200x:

OVERALL RATING: At the end of my original main review, I said that assuming Tecsun can maintain a high level of QC in production, and considering that the important RECAL feature has been retained, and that the radio has no muting, I would give the S-2200x a 4.8 out of 5. This would increase if Tecsun can address the slight alignment issue on the rotatable antenna, the issue in which SQUELCH does not completely silence audio.

However, after extensive testing, I feel that the problem of SYNC losing lock and generally sounding unstable takes the 2200x down a few notches. At present, the receiver is an attractive package with its retro styling, really nice and smooth main tuning knob, no soft muting and recalibration. However, the fact that synchronous mode has still not improved over the H-501/PL-990 means I would rate the 2200x at no more than a 4.5. Had Tecsun taken steps to improve SYNC – if it’s at all possible using the current chips — the radio would easily be several rating points higher.

AGC/SYNC: SYNC mode on the 2200x struggles, especially with weaker signals and regardless of bandwidth. As an example, testing on 15,575 khz (South Korea) using the telescopic and an an external long wire showed that in synchronous, there was a good amount of “pulling” with the signal, which was only at a fair level. The question of whether Tecsun has made any changes to SYNC mode between the H-501/Pl-990 and S-2200x remains, and we would hope to hear from them on this issue.

Here is an additional video showing both the 2200x and a H-501x in SYNC mode on a strong signal. Both receivers exhibit some less than satisfactory SYNC performance, though the 2200x sounds a bit worse:

Reader comments always spark additional thinking. As one user observed, Tecsun could have added AGC FAST/SLOW/MEDIUM options in addition to providing AGC and adjustable manual gain. It is definitely a good thing that SYNC as well as LSB/USB operate not only on SW, but also in AM and LW.

SSB: One reader asked if SSB performance on the 2200x has “the same woeful SSB audio quality issues caused by AGC and a low cut off frequency of around 300 hz making the audio sound thin, lacking bass while on SSB?” The reader also notes that these are “issues with every single Tecsun and most other DSP radios and due to the cost of these radios one should expect perfect performing and sounding SSB.” To adapt a quote from one of my favorite Clint Eastwood movie lines (“Deserves got nothing to do with it”) in this case I will say that Perfect has nothing to do with it. We’re all enjoying a mini-boom in the appearance of new receivers – to expect absolute perfection from a DSP-based receiver is sadly, unrealistic. SSB on the 2200x is probably about as good as it can get. The fact that fine tuning on the 2200x is so smooth is a very good thing.

ANTENNA: I have tested the 2200x using telescopic versus external antennas, including a long wire, W6LVP, Wellbrook and Chameleon loops. Reception is further enhanced with external antennas. The three ATTENUATION positions on the 2200x help to keep any overloading down.

RDS: A number of users/viewers have commented on the absence of RDS in the 2200x. This is indeed a good observation – seems that it would have been easy for Tecsun to include this, and one wonders if the company will consider adding this as a feature not only in the 2200x but H-501/PL-990 as well. However, I believe that Tecsun has just chosen to not increase costs and thus, no RDS.

AC POWER: As everyone probably sees, there seems to be no way to run the receiver on AC power. There is a dual USB-A cube included in the package, but as we have found, running receivers while they are charging is not a good idea. The 2200x does appear to charge fairly quickly via the USB-C port. Anyone with radios using 18650 batteries should invest in at least one good quality charger – these are available at any of the well-known professional battery/flashlight online sellers.

TUNING KNOB: Yes, the main tuning knob still exhibits wobble. It’s a puzzle as to why this can’t be resolved, especially years after the original Grundig 750 emerged and the old models continued to have this issue for years. But the action of the knob itself is really smooth and it’s a pleasure to tune this radio, at least based on the sample I have here.

In the end, our purchase decisions are driven by a number of factors – some potential 2200x buyers may not be as concerned with ongoing SYNC issues, while others might reject a new receiver outright based on this issue. The 2200x offers basically the same features as the H-501/PL-990, but adds AIR band and an excellent mediumwave rotatable antenna, and these facts alone may be enough to justify a purchase of the new radio.

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Giuseppe experiments with mediumwave loop induction

A review of the Tecsun H-501x portable shortwave radio receiver

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I was recently searching for my review of the Tecsun H-501x on the SWLing Post to send to a reader when I realized I had not yet published it here! Let’s fix that…

The following review of the Tecsun H-501x was originally published in the November 2021 issue of The Spectrum Monitor magazine. Enjoy:

A review of the Tecsun H-501x

by Thomas (K4SWL)

Last year [2020], we were treated to a group of new shortwave portables from Tecsun: the PL-990, PL-330, and the H-501.

Although all of these models garnered attention from shortwave listeners, one model in particular seemed to draw the most interest, the Tecsun H-501.

No doubt, much had to do with the H-501’s size––a large format portable––and especially the twin stereo speakers, that no doubt sparked the interest of those of us who owned (or wished we owned) the venerable Grundig Satellit 500 or 700 with its reputation for robust audio.

Tecsun was also very clear during their product announcement in 2019 that the H-501x is the flagship portable for the Tecsun line.

H-501 versus H-501x

Note that the product being evaluated in this review is the H-501x; the latest “export” version of the H-501.

The differences between these two models is fairly modest. The “x” model gives the user a slightly lower frequency floor in longwave and shortwave, and finer FM tuning (50 kHz as opposed to 100 kHz) when the AM tuning steps are set to 9 kHz as opposed to 10 kHz.

The differences are so modest between the H-501 and H-501x, I wouldn’t be worried if you already have the H-501. I would simply encourage you to only purchase from a reputable Tecsun distributor so you can be confident you’re not receiving one of the very early production runs of the H-501 that was only distributed domestically within China. Some of these early domestic models didn’t have all the refinements of the latest H-501 versions. I would encourage you to only purchase the H-501 or H-501x from a reputable distributors like Anon-Co, Waters and Stanton, Tecsun Radios Australia, and Bonito.

Unique features

Besides the large dual speakers of the H-501x, there are a number of other unique features and design choices that truly set the H-501 series apart from other Tecsun models.

Firstly, the H-501x uses two 18650 Lithium Ion batteries housed in two separate battery compartments. Both batteries can be internally charged, but here’s the interesting part: each battery seems to be somewhat independent of the other. When you engage battery charging, you must select, via a mechanical switch on the back of the radio, “Battery A” or “Battery B.” Only one battery can be charged at a time, and thus only one will power the radio at a time.

More than once, I’ve been listening to the H-501x and the battery indicator started flashing, signifying a low battery. I simply switched the battery switch to Battery B, and, voliá: I have a full battery again! This reminds me of a college friend’s VW Beetle that had a spare fuel tank…with this unique feature, when you were running low on fuel, you’d kick in the spare fuel tank and then make plans to refuel the main tank soon. Of course, with the H-501x, both these “fuel tanks” are also generous ones, in that the batteries last for a good while.

I find that the play time of each battery impressive given the size and audio amplification used in the H-501x. I had worries that the unit’s need for two batteries could suggest a short battery life, but fortunately this hasn’t been the case, no matter what mode I’ve used (FM, AM, shortwave, or Bluetooth).

However I will note here that the supplied switching power supply will inject noise if you try listening to AM or shortwave while charging. This hasn’t affected FM reception, though.

The fold-out metal bail on the H-501x is very large. This shouldn’t have surprised me, but it did. The H-501x is tall and wide, but not very deep––only marginally deeper than, say, the PL-880. The bail needed to be low-profile, but also support this mini “wall” of the radio while in use. The metal wire bail is handy and certainly does the trick, although there’s only one tilt position, and when it’s deployed, the radio effectively has a large footprint. This might limit where you can set it if the surface––say, a bedside table––is small. Not a problem for me, but worth noting. Continue reading →

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Jason’s solution to a false low battery indication on the Tecsun H-501x

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Many thanks to SWLing Post contributor, Jason Walker, who shares the following advice:

H501x Tecsun Battery Issue – False Low Battery Indication – Solution

As a H-501x owner I have found a solution to ‘false’ low battery indications on the radio, having tried several high quality batteries to lengthen the runtime, even a high capacity 3500mAh Fenix, without much success.

Last week, I noticed that when the radio was physically moved or tapped, the battery indicator would vary to low and radio cut out. I have traced this to a poor battery terminal connection (poor spring strength primarily) on the battery bays A & B.

By using a very light sanding of the positive battery contacts in the radio with fine sandpaper and cleaning of the 18650 battery terminals, not only does the issue go away, but the radio runtime improves significantly and battery capacity indicator returns to full.

I would be interested to know if anyone else has come across this issue? This may also be a cause of low H501/x runtimes mentioned in other posts.

Stronger battery springs with higher tension would improve the battery to terminal connection, as a product improvement suggestion for Tecsun or perhaps a local mod?

Jason Walker, Christchurch, New Zealand

Thank you for sharing this, Jason! No doubt a very easy modification that produces meaningful results. Again, many thanks!

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Matt’s Rooftop Receiver Shootout: Round Two!

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Many thanks to SWLing Post contributor, Matt Blaze, for the following guest post:

Matt’s Rooftop Receiver Shootout, Round Two.

by Matt Blaze

You may recall that back in April, I dragged eight of my favorite receivers up to the roof, hooked them up to a portable antenna, and compared their abilities to demodulate various signals at the same time. For the most part, the similarities between radios were more striking than their differences. I hinted that there’d be a second installment to come, including more receivers and more challenging signals, to further expose and highlight the practical real-world performance differences between the radios we use.

So, as promised, here we are with Round Two of my Rooftop Receiver Shootout.

This time around, I used approximately the same setup, but with a total of fifteen different radios. And once again, I took advantage of nice weather and brought a multitude of receivers, recording gear, cables, and an antenna up to my roof to listen to and record shortwave signals under the open sky.

Our fifteen receivers included everything from “dream radios” from the 1980’s to current-production desktop models to less expensive modern portables to high-performance bench-top lab measurement gear. I tried to curate samples of a wide range of radios you may be familiar with as well as some you probably aren’t.

The lineup consisted of:

Icom R-8600, a current production “DC to Daylight” (or up to 3 GHz, at least) general coverage communications receiver, with highly regarded shortwave performance.
AOR AR-ONE, another DC to 3 GHz general coverage radio, less well known due to the high price and limited US availability. Excellent performer, but a counterintuitive and awkward (menu-driven) user interface is less than ideal for shortwave, in my opinion.
Reuter RDR Pocket, a very cute, if virtually impossible to get in the US, small production, high performance SDR-based shortwave portable receiver. It’s got an excellent spectrum display and packs near desktop performance into a surprisingly small package.
AOR 7030Plus, an extremely well regarded mobile/desktop HF receiver from the late 90’s. Digital but retaining some important analog-era features like mechanical filters. Designed and (mostly) built in the UK, it’s got a quirky menu-driven user interface but is a lot of fun once you get used to it.
Drake R8B, the last of the much-beloved Drake receivers. Probably the chief competitor to the 7030+.
Drake R7A, an excellent analog communications receiver (but with a digital VFO) from the early 80’s. It still outperforms even many current radios.
Sony ICF-6800W, a top of the line “boom box”-style consumer receiver from the early 80’s. Great radio, but hard to use on SSB, as we saw in Round One.
Panasonic RF-4900, the main competition for the Sony. Boat-anchor form factor, but (improbably) can run on internal D-cell batteries. Generally impressive performer on AM, but, like the Sony 6800, difficult to tune on SSB.

You may remember the above radios from Round One back in April. The new radios this time were:

Tecsun 501x, a larger-format LW/MW/HF/FM portable released last year. As noted below, it’s a generally good performer, but regrettably susceptible to intermod when connected to a wideband external antenna (as we’ll see in Part One).
Tecsun PL-990x, a small-format portable (updating the PL880), with many of the same features as the 501x. Like the H501x, good performance as a stand-alone radio, but disappointing susceptibility to intermod when fed with an external antenna.
Sangean ATS-909x, a recent LW/MW/HF/FM portable with a good reputation as well as a few quirks, such as only relatively narrow IF bandwidth choices on HF. Excellent performance on an external antenna.
Sangean ATS-909×2, an updated, current production version of the ATS-909x that adds air band and a few performance improvements. Overall excellent, though I would prefer an addition wider IF bandwidth choice. My go-to travel receiver if I don’t want to take the Reuter Pocket.
Sony ICF-7600GR, a small-format digital LW/MW/SW/FM portable introduced in 2001 and the last of the Sony shortwave receivers. Showing its age, but still competitive in performance.
Belka DX, the smallest radio in our lineup, made in Belarus. You’ll either love or hate the minimalist interface (one knob and four buttons). If you’re going to secretly copy numbers stations in your covert spy lair, this is a good radio to use. Can be difficult to obtain right now due to sanctions.
Finally, a bit of a ringer: the Narda Signal Shark 3310, a high performance SDR-based 8.5 GHz RF spectrum and signal analyzer. As with most test equipment like this, demodulation (especially of HF modes) is a bit of an afterthought. But it has an excellent front end and dynamic range, intended for identifying, extracting, and analyzing weak signals even in the presence of strong interference. Not cheap, but it’s intended as measurement-grade lab equipment, not consumer gear. Demodulated audio is noticeably delayed (several hundred ms) compared with other receivers due to the multi-stage DSP signal path.

The antenna was my portable “signal sweeper” Wellbrook FLX-1530 on a rotatable tripod, using a power splitter and a pair of Stridsberg Engineering 8-port HF distribution amplifiers to feed the fifteen radios. So every radio was getting pretty close to exactly the same signal at its RF input. Continue reading →

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International Radio Report reviews the Tecsun H-501x

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Many thanks to SWLing Post contributor, Sheldon Harvey, who writes:

Hi, Thomas

Gilles and I have a special edition of the International Radio Report in which we discuss the new Tecsun H-501X portable shortwave receiver.

The special edition is available exclusively on our show’s YouTube channel.

Here is the link to the video:

Thank you for sharing this, Sheldon!

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Tecsun H-501x pricing and availability via Anon-Co

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Anon-Co has started taking pre-orders for the Tecsun H-501x portable receiver. Click here to read Dan Robinson’s review of this radio.

Anon-Co will start shipping these on Monday, May 16, 2021.

Hard case version

The price will be $298.00 US for both the hard case and faux leather case versions.

Faux leather case version.

Shipping cost: Depends on the delivery country; slightly higher cost for the hard case version.
Faux leather pouch is not included with the hard case version. It can be included as a $15.25 add-on, but does not fit inside the hard case.
Hard case version: Limited stock available (more stock expected by the end of June).

Click here to check out the faux leather case version and/or the hard case version of the Tecsun H-501x at Anon-Co.

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