How to change the SANGEAN PR-D5's MW/AM band channel spacing from 10 khz to 9 khz -- or vice versa

The Sangean PR-D5 is a popular AM-FM Stereo mini-boombox radio that runs on 6 C cell batteries and is an excellent performer on MW/AM especially.  I've had mine for several years and have had no issues with mine -- except a couple very minor ones I have talked about in several posts here on my blog. One issue was easily solved by unplugging the power cord and removing the batteries for a half minute or so, the other issue was easily solved by inserting plastic shims into the battery compartment.

Other guys I have talked to on the internet have had no issues whatsoever with their PR-D5's -- one guy has two of them, another lives in Hawaii and has heard the Eastern states of America along with several Asian stations on his PR-D5 -- all with no other antenna but the one inside the radio.

They're very good MW/AM radios, and sound great on FM, too. An excellent buy.

MW/AM CHANNEL SPACING -- A READER WANTS TO KNOW HOW TO CHANGE IT

Recently a reader asked me about the Sangean PR-D5. He apparently was having an issue whenever he replaced the batteries -- the AM band would revert to 9 kHz spacing for some reason. This has never happened on my radio -- I have it usually set to 10 kHz MW/AM spacing, and leave it that way.

And it stays that way, unless I change it. But this reader's PR-D5 apparently changes to 9 kHz now and then when he swaps out the batteries.

For those who aren't aware, the MW/AM broadcast band uses 10 kHz channels in the US, Canada, Mexico, Central and South America, and the Caribbean. I think Greenland also uses 10 kHz spacing between MW/AM radio channels.

In the rest of the world the spacing is 9 kHz. With old analog radios, spacing wasn't an issue -- you just turned the dial until you got to the next radio station. With digitally tuned radios, you often have to set the spacing to either 10 kHz or 9 kHz (with some radios you can set it to 1 kHz and you tune up the band very slowly that way).

The SANGEAN PR-D5 will tune the MW/AM band in 10 kHz or 9 kHz increments. The hitch is that you have to set the channel spacing in the radio if -- when you get it out of the box -- it is set to the wrong MW channel spacing for your part of the world.

Now, in the manual it tells us how to switch the radio between 10 kHz and 9 kHz spacing. But lots of times, we lose the manual, right?

There may be others out there in the internet universe who perhaps forgot how to change channel spacing on their PR-D5's (and related radios -- I think many of the new Sangean AM-FM's have similar firmware). This post is aimed to help. :-)

HERE IT IS: STEP BY STEP

So -- HERE'S HOW TO SWITCH YOUR PR-D5 FROM 10 KHZ TO 9 KHZ, AND VICE VERSA.

First: turn the radio OFF.

When you first press the STEP/BAND button -- with the radio off -- this appears on your PR-D5's readout. Keep holding the button down.

After turning the radio OFF, press the "STEP/BAND" button in the top center of the radio, and hold it down for several seconds. A 'VERS P.05" (or some other similar number) will appear. Keep holding the button down. Then it will beep.

Now -- press the "STEP/BAND" button again. You'll get the CLOCK setting, it will say either "24 HOUR" or "12 HOUR" (this tells the radio how to show the time).

Press the "STEP/BAND" button again.

Now the LCD readout will say either "AM 10 kHz " or " AM 9 KHZ" -- whether it shows 10 kHz or 9 kHz depends on where the radio is set when you start this process. Turn the tuner button up or down until the step you want shows up in the LCD readout -- whether 9 kHz or 10 kHz.

When the kHz step you want shows up on the LCD readout, PRESS IN ON THE TUNER BUTTON.

This will set the MW/AM step to either 9 kHz or 10 kHz, whichever one you selected.

Your PR-D5's LCD readout will now look like " --:-- ". 

You're done.

Let go of the buttons on the radio, and within a second or two the LCD readout will darken.

Now you can turn on your PR-D5 and it should tune the AM band in 10 kHz steps, or 9 kHz steps, depending on whichever step sequence you prefer.

When you change the channel spacing from 10 kHz to 9 kHz and back again, you will lose your 5 AM band memories. It will reset to the default memories, which are 5 different channels spread across the AM band. But the memories in the PR-D5 are easy enough to re-set: Tune to the channel you want, press a memory location button until you hear a beep, and it's set.

I sometimes switch my PR-D5 to 9 kHz when I want to hear stations from Asia, which rarely come in here at my location. In fact, as I type this, I have been hearing long slow fades of what sounds like some Asian speech, although it is unidentifiable, on 1566 kHz. On 1570 it was just a weak heterodyne. 1566 is the clearest 9 kHz channel here in my area of Western Washington. There is a powerful station in Korea that is 250,000 watts, where I have heard audio at least twice.

Another DXer in another part of Washington State has heard this station more than a couple of times.

In other news, we've had a rainy, grey, moderate Winter for the most part here in the Seattle area. We had maybe 8-10 nights and mornings this Winter where it was freezing or below freezing, but most of it so far has been around 40-50F -- pretty moderate for Winter.

We had a White Christmas this year: extremely rare for Western Washington state. It started snowing during the afternoon on Christmas Eve, and snowed late in the evening, up until early Christmas Morning. It was a magical feeling to see the snow fall on Christmas Morning. Considering some of the other things that were going on in my life at the time, it was sorely needed. 

I will post some Christmas pictures later this week.

Hope all are having a good February.

CC 2-18-2018

Radio Shack 200629 Synthesized World Receiver -- how to quickly fix a feedback and whistling noise issue

The Radio Shack 200629 "PLL Synthesized World Receiver", with a Panasonic external SW antenna. The silver plug is a mono-to-stereo adaptor, which seems to be needed with at least some of these radios.

I bought one of these marvels about five years ago (in 2013), when Radio Shack had them on sale. Radio Shack calls them the "PLL Synthesized SW Receiver", and colloquially they have been referred to as the "Radio Shack World Receiver", "Radio Shack Synthesized World Receiver", or by the catalog number 200629.

It's basically a new Sangean ATS-505 in a black cabinet, and with the Radio Shack badge. The audio chip is different, with a little bit more output. The tuning has no chuffing. But basically it's an ATS-505 with Radio Shack's name on it.

They're great radios. Unfortunately, Radio Shack is online only, and doesn't sell these 200629 World Receivers anymore, and Sangean unfortunately no longer makes ATS-505's. But if you find one for sale online, they are very good radios.

But there is one minor issue -- at least with mine. The issue I experienced may not be present on all of these radios. It's possible it is just a glitch with mine. But in case anyone else who has one of these radios encounters feedback when using an external SW antenna, I found a way to defeat it.

FEEDBACK AND OSCILLATION USING THE EXTERNAL ANTENNA

I hadn't used my Radio Shack 200629 / ATS-505 in maybe a year. I just lost interest in Shortwave, and had other radios that I used in my radio hobby. Seeing it on the shelf one day, I pulled it out, plugged in some batteries, and plugged in my 25 foot indoor wire antenna (which ends in a mono mini-plug).

I noticed weird sounds on the SW stations -- almost a swishing sound, like there was frequency instability. When I switched the sensitivity switch from 'DX' to 'LOCAL' it went away somewhat.

When I pulled out the headphones I noticed my Radio Shack World Receiver began acting like a theramin whenever I moved my hand close to the radio. Weird. Obviously, there was some sort of internal oscillation going on in the radio, that was caused in some way by the external antenna, and was abated somewhat by having the headphones plugged in.

It took several days of staring at a schematic and experimenting with the radio to find out that the problem was simple: the SW External Antenna jack is a stereo jack.

When I plugged the mono antenna plug all the way into the stereo EXT Antenna jack -- that was when I got the feedback.

I tried plugging my antenna plug in PART WAY, so it wasn't all the way in. No feedback, no swoosh noises, no theremin sounds.

PROBLEM SOLVED.

I then found a mini mono-to-stereo adapter out of my parts box, and plugged my antenna plug into the adapter, and then plugged the adapter into the radio. It works on SW perfectly.

SIMPLE SOLUTION: USE A STEREO ANTENNA PLUG, OR MONO-TO-STEREO ADAPTER

The 200629 does not like mono antenna plugs in the stereo antenna jack. A mono plug will cause at least some of these radios to feedback somehow, and if you aren't using headphones you'll find the radio acts like a theremin.

Whether Sangean-branded ATS-505's have this issue, I don't know. I know that the audio chip on the 200629 is different from the one used in ATS-505's -- at least the ATS-505's that were first produced. It is more powerful than the audio chips in older 505's. But the IF chip is the same, the FM front end chip is the same, and I'm guessing the rest of the basic circuitry is the same.

The EXT Antenna jack is wired stereo apparently to take the internal, whip antenna out of the picture. The radio is a fairly high gain radio on SW -- it has an FET RF amp and several FET stages of IF amplification and filtering that it doesn't have on MW and LW. Although I am a neophyte at reading schematics, it seems the whip antenna is connected to the RF amp with less resistance, and plugging in the EXT antenna with a stereo plug switches the whip antenna off, and increases the resistance somewhat.

So using a mono EXT antenna plug into the stereo jack somehow overloads the front end of the SW part of the radio. Voila! Oscillation.

USING A STEREO ANTENNA PLUG OR A MONO-TO-STEREO ADAPTER = HAPPY RADIO

Either way, if you use a mono EXT antenna plug on a Radio Shack World Receiver, you can get oscillation, feedback, and theremin like hand capacitance effects, especially without headphones plugged into the radio.

Use a stereo plug, or a mono-to-stereo adapter, or if you have to, just engage the mono plug enough to where it is halfway seated -- that also works. Then you can spend time DXing with your 200629 / ATS-505 without extra oscillation and theremin-like stuff going on. :-)

So if you have a Radio Shack PLL World Receiver 200629, and you have weird oscillations when using an external antenna, make sure to use a stereo input jack, or -- better yet -- a mono-to-stereo adapter.

You can also just clip an external wire antenna to the 200629's whip antenna. The connection to the radio's circuitry is more or less the same. I've never had whistling issues clipping my indoor wire to the whip antenna, though.

Not all Radio Shack 200629's may have this issue. I really don't know. My radio works normally otherwise, and with the adapter, it's working well with the external antenna now.

I will probably post an article on the radio itself soon.

Until then, hope those of you in the Northern Hemisphere are enjoying the last of Winter, and Winter DX season.

SOME DECENT CATCHES ON SHORTWAVE

MW has been fair-to-middling here at my location recently, but a few early mornings I've heard some decent catches on the 49 and 41 shortwave meter bands -- including the BBC in Urdu, Pashto and Dari towards South Asia on 7485 and 7465 khz, broadcasting from Kranji, Singapore -- both catches I heard on the 200629 Radio Shack radio with a 25 ft (10 meter) indoor wire, a few mornings ago around 1500-1600 UTC.

Lately shortwave propagation conditions have been mostly mediocre, but there have been a few mornings that the pipeline to Asia has been open, and that was one of those mornings. :-)

CC 2-9-2018

 

ADDENDUM, August 31st, 2023: 

After having to repair the connection between my whip antenna and the 200629's main PCB, I took a second look at the 200629's schematic diagram and the way the EXT antenna jack is wired. I'm not sure if it's a stereo jack or not, but the stereo plug did help when I used an external wire with the radio.

Then I lost the mono-to-stereo adapter. So I started clipping the 10 meter / 25 ft. indoor wire to the whip. That worked great. Then it started cutting out. I took the back off. The whip is connected to the PCB with this little prong device, and it's one of Sangean's weak points, they made connections like this with some of their other radios, and those connections would eventually get wiggy. My DX-390 needed hard wiring, and so did my DX-440.

Now it looks like my ATS-505/200629 needs its whip hard wired to the PCB as well. Live and learn. :-)

The EXT jack still acts odd if the mono plug is pushed all the way in. I think that either a) my previous conclusion in this article is correct -- it's a stereo jack (it just doesn't say so in the manual!), or b) my EXT antenna jack is defective. 

After I fix and hard wire the whip antenna connection, I may write up another article on the 200629 and the antenna issue.

And, just in case any new 200629 owners are reading this article by chance and wondering about a loud whine on 9820 kHz, yes, there is a 'Birdie' in the middle of the 31 Meter band, on 9820 kHz. Birdies are fairly normal on PLL radios. Luckily for SWLs there aren't many of them. 

And all this said, I still think the 200629 / ATS-505 is a terrific SWL and MW DX radio. Great sound through headphones. Enjoy. C.C.

ADDENDUM, June 12th, 2024: I made a couple minor edits, including adding a line stating that if you clip the wire antenna to the whip, using an alligator clip, you don't get the whistling / oscillating issues -- at least I haven't in the 2 years I've just been using my wire antenna that way -- clipping it to the whip antenna. Looking at the schematic, there may be an internal wiring connection that makes the radio dislike mono plugs in the EXT antenna jack. But right now, that's just a guess. 

TL;DR: just clip your wire antenna to the whip. :-)

HALLOWEEN and FALL pictures 2017

One of my Halloween Jack O' Lanterns this year.

Now that it is almost Christmas, it's time to put up a few Halloween and Fall pictures. :-)

Halloween is my favorite holiday... It surpasses Christmas because one doesn't have to have a lot of family ties, or close family to enjoy it. All you have to do is either hand out candy to trick-or-treaters, or carve a pumpkin or two, and you are an active participant. Or you can dress up and hit the bar and mingle a bit with other partiers.

With Christmas, it's not easy if you have no close family. There isn't much of a way to celebrate. Christmas was a lot more fun for me in the past. Today? Not so much.

So, to commemorate this most recent happy Halloween holiday, here are a few pictures, which I took of my own decorations, as well as a few decorations from houses in nearby areas:

One house in the area had a Pumpkin Tree!

A couple houses had cool looking blow-up decorations in their yards.

This house had lots of cool looking Jack O' Lanterns.

Another place had some really cool blow-up decorations for the Trick-or-Treaters.

A happy looking Pumpkin Man.

A local thrift store had a lot of cool Halloween stuff for sale.

This Halloween was a decent one. There were more trick or treaters than usual. I put up my usual pumpkins and scary things. This Fall was also a decent one. I took a few pics with both of my cameras. Now that Fall is gone, I will have to take some Winter pictures, but the problem of course is that Winter here in Seattle means clouds and rain. We rarely get snow, and even frost is kind of rare.

I used the same hanging spooky decorations as last Halloween -- this year they looked a little better for some reason.

My mini-graveyard looked decent this Halloween.

Another of my carved Jack O' Lanterns.

Mickey Mouse lit up the window, as he did last year.

The moon looked very spooky the night of Halloween, which was very fitting!

I also took a few pictures of fall leaves, although the best colors came out when it was rainy out. :-(

The first leaves of fall -- Cottonwood leaves turned yellow.

A Hawthorn tree chock full of berries late in September.

The Cedar River surrounded by subtle Autumn colors.

The Cedar River Trail had Autumn leaves, but it was not quite as colorful as previous years.

A frog pond surrounded by Autumn colors.

As it is now Winter, it is now DX season for those of us who tune the late night AM/MW band. I haven't heard many new stations, and some nights have been only fair for DXing (distance listening), considering that it is near Solstice and the sunspots are low. There have been a few surprises, though: a few nights ago I heard XEW, on 900 KHz, fading up and then fading out, on my Panasonic RF-B45, using a loop to enhance the signal.

It's always cool to hear a station from that deep in Mexico. The last time I heard one was on my Sanyo Boombox in 2011-2012, a station on 1500 Khz. I used a loop to bring it in more clearly, but it was even audible on my boombox without the external loop helping the signal.

Because it's Lille Julafton -- the day before Christmas Eve -- I have to have at least one Christmassy picture on here. This is my only new tree ornament this year: I put it on my outdoor Christmas tree, a hawthorn I always light up and put ornaments on.

Here's hoping you have (or have had) a great Christmas, Weinacht, Jul, Hannukah, Solstice, or whatever holiday you celebrate during the this time of year.

I will try to get some pictures that fit the Christmas holiday soon.
C.C. 12-20-2017 and 12-23-2017

The SANGEAN PR-D6, Sony fence DXing, and Summer in September

The Sangean PR-D6, a portable AM-FM radio that runs on 4 AA's and puts out nearly one watt of audio -- and it has good performance on MW/AM, too. I kept the plastic protector over the dial for a while as I started using the radio outside while brushcutting... I didn't want to get it all scarred up so soon after getting the radio... The plastic has since been removed. :-)

I first learned of the Sangean PR-D6 portable radio about six months ago, on a radio forum I read a lot. Apparently a famous radio DXer/blogger reviewed this Sangean radio a while back and gave it two and a half stars.

Apparently Sangean decided to market a small AM-FM radio with good performance and great audio -- the kind of portable you can carry around the house, or take on camping trips. Something that is tough and reliable. They achieved that goal with the PR-D6.

I saw one for sale at Fry's electronics box store priced about 3-4 dollars off (it was a return or a demo) and decided to bite. I was pleasantly surprised. The Sangean PR-D6 is a good little radio. It has a couple minor glitches, but for emergencies, or for taking out in the yard, or taking from room to room in the house to stay tuned to a program or football game or whatever, it gets the job done very well.

The radio that is permanently installed in my car is long shot -- the PR-D6 works well enough on FM and AM to listen to local stations while driving.

First off, the radio is small. It's larger than a pocket radio, but smaller than your average portable AM-FM radio -- about the size of a thick paperback book. Second, it has a fairly good sound: with tone controls and two audio chips, including the final audio chip being rated at over one watt (the speaker is rated for over two watts), the PR-D6 can put out a good sound.

It's small enough to carry around in a backpack, or to toss into a luggage bag.

The PR-D6 runs on four AA batteries. It will also run off of an older style 6 volt wall wart -- so long as it has a negative tip (as most Sangeans and Panasonics have historically used: some newer Sangeans -- like the famous PR-D5 -- have positive tip wall warts -- so be careful with polarity!).

The PR-D6 is a decent DXer on the Medium Wave band. It is better than your average clock radio or Walkman, but not quite as high a performer as a Sony ICF-38, Sangean 909, Realistic DX-375, or similar radio. The IF chip used (a TA2111N/YD2111N) is a good chip but the chip doesn't have a super high gain RF amp inside it, and there is apparently no RF amp transistor in front of the IF chip -- so, like most modern portable AM radios, it's not a "TRF" design (the TA2111N does have an RF amp section -- apparently 4 internal transistors -- but it's not as high gain as some other IF chips on MW).

That said, it works well for DXing, especially on nights when the MW band is hopping. It will also work with an external loop, but you have to have the loop 3-4 inches to either side of the radio (about 10cm). It has a ceramic filter inside which works well: during the late mornings, for example, it would pick up KXTG Portland on 750 kHz when my GE Superadio III (with 4 IF filter stages) was partly covered by local KTTH 770. That's how good the selectivity is.

The ceramic filter is so good you can hear that distinctive ksssshhhh sound when tuning across a channel. The selectivity is good overall because of this: however, during the day I've gotten a station on 1170 kHz (about 90 miles away) covered by some bleedover from local KKNW 1150. At the same time, KIRO 710 doesn't cover CBU 690 from Canada, about 110 km away, so if a regional station is strong enough, it can cut through in daytime conditions.

The Sangean PR-D6 with the front off. The little chip visible in the radio just beneath the dial pointer is a secondary audio chip, a UTC4580, that drives the tone controls. If you zoom into the picture you can see the speaker is rated at 3 watts max. The main audio chip is capable of putting out a watt.

The MW/AM antenna, although it's about 90mm long, seems pretty thick, and is highly efficient. It is very directional, and nulls very well. If you are in a low signals area as I am in (I live in a 'hole', basically) -- an external loop is advisable for serious DXing. If you live in a high signals area, you may not need one to DX with the PR-D6.

On good DX nights the PR-D6 will hear most -- if not all -- of what good portables will hear. On poor DX nights, other radios (like the DX-375 or ICF-38) will pick up a few more stations than the PR-D6 (without an external loop, of course).

Here in this slightly blurry picture you can see the PR-D6's audio chip, located just beneath the tuner cap. It's the same audio chip used in the PR-D5, a UTC2025. The IF chip, a Chinese knock-off of a Toshiba TA2111N, isn't visible in this pic, and it was nearly impossible to get a pic of it as it's buried beneath the chassis of the radio here.

That said, I have heard DX on it that other, better radios receive: recently I heard WCKY 1530 out of Cincinnati, Ohio on my PR-D6, with a preacher talking beneath dominant KFBK Sacramento. It was coming in as strong on my PR-D6 as it was on my Sangean PR-D5 (a MW DX radio I have written about in other blog posts here).

ASIAN HETERODYNE ON UPPER SIDE OF 970 KHZ HEARD ON THE PR-D6

I've even heard a heterodyne from Asia on the upper side of 970 on my PR-D6 (972 kHz, probably the 1200 Megawatt station from South Korea). There was no audio, though. But hearing a het from across the Pacific shows that the PR-D6 is definitely capable of DX. The hill near where I live has slightly better MW reception than my own location, and I sometimes go shopping there. I had my PR-D6 in the car with me when I went shopping one night, and KGO 810 San Francisco came in louder than the local station on 820 kHz right next to it. I was pleasantly surprised. The PR-D6 may not quite be a Superadio, but it will pull in distant signals quite well.

A view of the inside of the PR-D6. This picture of a Clear PR-D6 kind courtesy of Sangean, from their website. In this pic you can see the main circuit board. The radio circuitry is to the left of this picture, the audio chip is somewhere in the lower center, near the speaker. The pre-amp audio/tone chip is above the speaker. You can see the MW loopstick, which isn't easy to measure but seems to be 90mm or so. The radio itself is about 160mm wide (4 3/4" high by 6 1/4" wide). If you zoom the picture, you can see that the speaker is capable of handling 3 watts. The radio itself is only capable of putting out a watt -- still impressive for a small radio.

A front pic of the PR-D6CL, the clear version, courtesy of Sangean's website.  Most of the circuitry is on one elongated L shaped circuit board. The PR-D6 is a fairly simple machine.

FULL, LOUD SOUND

The audio chip in the PR-D6, a YD2025, is the same basic audio chip that is in the PR-D5 -- a chip capable of putting out nearly a watt of audio. The YD2025, like the UTC2025 in the PR-D5, is a variant of the Toshiba TA2025, apparently a well known audio chip. The three inch speaker in the PR-D6 is possibly the same speaker used in other Sangean AM-FM portables -- fairly robust. The radio seems well designed, with and extra audio chip for the tone controls (and probably used also as a buffer amp). The tone controls work well, which are a plus. Many similar radios (my Sony IFC-38 being an example) just have a tone switch. I've never cranked my PR-D6 very high, but the speaker seems to exhibit no distortion at loud levels. 

While clipping brush and blackberries I took the PR-D6 outside to listen to a football game while doing yardwork. The PR-D6's one watt audio makes it handy for listening outdoors.

FOUR AA's LAST A WHILE IF THEY ARE ALKALINES

The radio sounds good on headphones, and if one is DXing for extended periods with the PR-D6 using headphones is probably advised, as the radio has a bit higher battery usage compared to some other similar radios -- the one watt audio chip is the reason. For example, my Sony ICF-38 is very light on batteries -- a set of AA's in a Sony ICF-38 will last more than a month. With the PR-D6, it seemed that after 20-30 hours of use the AA's were fried. I'm not sure if it was the batteries themselves, or the high output AF chip that helps eat batteries. Still, 20-25 hours of use is enough for the radio to be useful during emergencies -- just keep a couple extra sets of batteries handy, and don't crank the audio too high when the power is out for a long period of time. Or use headphones most of the time.

The most recent set of AA batteries (cheap alkalines) I put into my PR-D6 seemed to have lasted longer. So far, maybe 30-40 hours or so later, they're still working.

FM GOOD, BUT CAN ALSO OVERLOAD WITH LONGER ANTENNAS

On FM, the PR-D6 is OK. Mine came without the short rubber-duck antenna attached. The rubber duck antenna that usually comes with a PR-D6 apparently was stolen or lost in the store (hence, the reduced price). Even without the antenna it will pick up all of the local FM stations with decent signals. Terrain shadows and weak spots in the house are a bit more noticeable, but overall it's a decent take-around-the-house or yard radio for FM as well as AM.

I attached a hank of wire to the FM antenna jack, and found that the signals improved slightly but it also overloads easily -- with mine, local FM overload hash appears in blank spots in between FM stations. So I've left the antenna jack bare -- just a 4mm bolt screwed into it, in case I ever want to attach a wire that way.

Obviously, the PR-D6's strong suit is its AM performance, which is much better than expected.

I kept the plastic dial protector on the radio for a while, as I was using it out in the yard, while clipping boughs and blackberries. Here I'm listening to a Seahawks football game, in late September.

GREAT FOR CAMPING, GOOD FOR EMERGENCIES

-- KEEP A SPARE SET OF BATTERIES

Overall, at the price of around $35 for this radio, I think it is a good value for the money. Decent performers at this price range are a bit rare. The PR-D6 looks well built, and it works well. It's a simple machine and it looks like it should hold up well over time. It's probably a good emergency radio, so long as you keep a spare set of batteries. It probably will last longer with alkalines than regular AA's. It's a good budget radio capable of good, loud sound and capable of DX on the MW/AM band.

AN EXPERIMENT IN SONY FENCE DX'ING

My Sony ICF-38 being boosted by a 100 foot cyclone steel fence. It boosted signals on several channels by around 2-3 db. The antenna is underneath the tuning dial.

Late this summer while I was outside a lot working into the night, clipping back a large patch of Himalayan blackberries I realised that my cyclone fence might just act as a signal booster. I grabbed my trusty Sony ICF-38 and brought it out and tested it. Instantly, the fence boosted signals by about 2-3 db on some channels. Here you can see a low signal channel in the mid part of the band pushing the red signal LED on the radio on a medium DX night. The section of fence is nearly 100 feet (30 meters) long.

If you happen to have a steel fence nearby, don't neglect to try using it as an outdoor signal booster.

SUMMER IN SEPTEMBER -- A FEW PICTURES

As I finish this blog post, it is below freezing outside, and Christmas is only two and a half weeks away. It seems this year just flew by. We had a decent summer here in Seattle -- it was 81 degrees F as late as the last week of September. here are a couple pictures from September 27th, when it hit 86 in the afternoon:

I did some major cutting back of a hedge during beautiful, sparkling California-like weather in late September this year. It was awesome working in the sun.

A lone apple in my apple tree in late September. I still have no idea what type of apple this is.

Eddie the Grasshopper hung out inside the house for about a month this summer. I have no idea where he went -- within a week and a half or so after taking this picture of him, he disappeared.        :-(

On some occasions during the summer we have great sunrises -- usually the good sunrises are during the colder months.

I managed to set up my amp and guitars in a better room and had a chance to play them for the first time in a couple months starting in September.

Here you can see the thermometer reads just over 86 degrees F, during the last week of September, 2017. Summer in September -- not common here in Seattle. The blue liquid is a workout drink.

Now we are finally hitting Winter. I close this post with a couple pictures from last year: outdoor Christmas ornaments.

Right now, it is frosty outside.... Not unlike the way the ground looks in the bottom picture.

Hope all of you are having a great December this year.

CC 9-2017 and 12-7-2017

ADDENDUM, August 25th, 2023:

For the last 3-4 years my PR-D6 has been laid up. It's my fault, I inadvertently left it in my car overnight, probably in Summer of 2018, and it ended up roasting on the seat or dash during the next day, which was probably a hot July or August day. Suddenly, the radio wouldn't tune well. The tuning needle was bent from the heat. What had happened was one of the little plastic 'pins', that hold the dial string in place, bent from the head, making the string slacken, and the tuner knob worthless. I still am at a loss as to how to fix it without wrecking the dial string. So I keep putting it off.

Meanwhile, a reader has mentioned that he got a PR-D6 earlier this year, and that his PR-D6 is stereo on FM through the headphones. This is after I answered a question in the comments below, where an earlier reader asked me if the PR-D6 is stereo.

I had checked FM on my radio, by taking the front off and turning the big plastic tuning wheel, and tuning to several, strong FM music stations and noted it was all in MONO.

After the second reader mentioned -- just this week -- that his or her PR-D6 was stereo through the headphones, I took a second look at the chips used by this radio, and yes, the chips themselves are indeed stereo capable. But I just did another test of my PR-D6 and my PR-D6 is still in MONO on local music FM stations.

Sangean must have reconfigured the headset wiring to make the PR-D6 stereo on FM after I got my radio in August or September of 2016. 

So, apparently now the PR-D6's are in stereo on FM through headphones, which is a good feature.

I still have to figure out a way to fix my PR-D6. Maybe I'll cut a hole in the front, attach some sort of mechanism to the wheel and tune it that way. Right now it's easier to just put it off. :-)

Don't leave your PR-D6's out in the heat, guys. They don't like sitting for long periods in hot cars in the summer.

If I fix my PR-D6, I'll post an article on it. I'll have to. :-)

SANGEAN PR-D5 crackling noise? A Quick Fix for loose batteries

My Sangean PR-D5 mini-boombox pulling in a station from Redding, California during the Solar Eclipse, August 21st, 2017. 

One night last week I switched on my Sangean PR-D5, which -- as many of my readers know -- is an excellent mini-boombox that has great FM sound in stereo and pulls in stations like crazy on MW/AM. I listen to mine every night while writing. Usually I have it on the AC adaptor plug, but sometimes I use the batteries only.

This particular night, when I switched on the radio and plugged in my headphones there was a crackling noise. Then it would stop. Then it would start again. It seemed to happen when I moved the radio. At the time I only had batteries in the radio.

Curious, I tapped on the back of the battery door.

Crackle! Crackle! Crackle!

I opened the battery door and saw that the batteries were a little askew. Straightening them caused more crackling noises. Thinking that it solved the problem, I shut the battery lid. I continued DXing. Every now and then there was a crackle. Then I tapped the back of the battery lid.

Crackle!

I opened the battery lid and took a look at the batteries. They were all C cells -- true. But they weren't all the same exact size! One brand was a tiny bit narrower than the other brand.

I decided to try a shim inside the battery compartment, to keep the batteries from shifting around.

Two white plastic shims, cut from a large protein bottle lid, got rid of the crackle from battery movement inside my radio. If you shift the shims aside from each other, the battery door will close securely without having to force it.

SHIMS CUT OUT FROM A LARGE BOTTLE LID

I found a big empty protein powder bottle in my recycle bin and grabbed the top and made a couple small shims, using hand-held pruning shears (scissors weren't tough enough to cut the plastic). I placed the shims in the back of the batteries, and then I shut the door over the batteries and the shims.

Problem solved.

Sometimes if I tap on the back of the radio hard enough, I'll still get some battery noises. But moving the radio around (which you do when DXing the MW/AM band, to 'null out' stations) I'll don't get noises. I suppose some foam would work, but the shims do the job well enough.

Cutting shims from a protein powder bottle lid. The plastic is a bit too stiff for scissors, so I used a pair of handheld pruning shears. Two shims did the trick. You may have to experiment with the size of shims to get it right. I cut three of them, and chose the best two of them -- to hold the batteries tight, but not stress the battery compartment door too much.

BATTERIES AREN'T ALL THE SAME EXACT SIZE

The problem isn't the radio -- it's modern day C cells (and batteries in general) -- they all aren't the same exact dimensions. Some are a half-millimeter or two longer or wider than others -- or for other reasons different brands of batteries don't sit well next to each other (the positive tips being flattened in some brands, and more pointed in other brands; some brands have flat bottoms, others have indentations in the bottom, etc.).

This quick fix for movement crackling noise probably works with other battery powered radios also.

Bagpipes and Turkey go together quite well! And football -- don't forget football.

THANKSGIVING

Right now it is raining out. Halloween has long passed, and it's the start of the Thanksgiving holiday. I plan to go to a relative's house in the northern suburbs of Seattle (affectionately known as the North End), and have dinner. I will take my bagpipes with me and will probably play for the family, as I often do on holidays. When I started out in piping long ago, I played in a band, but those days are long gone. Now I play for my family, or just play at home.

For the past week or so, it's been raining a lot. I still ride my bicycle for exercise, but riding a bike in the rain sure gets you wet! November seems to be our rainiest month -- and stormiest month, for some reason. The leaves are still orange on some of the trees, but most of them are gone by now. :-(

The cottonwood trees had a nice yellow glow during mid-Autumn. The leaves are nearly all gone by now -- washed away by rain and wind. :-(

MW DX season has had good nights and bad nights. Mostly it's been fair to poor -- the band has been dropping off early in the morning, instead of hanging on until late morning as it usually should during the Winter. One day around 2 p.m. I was hearing a few of the stronger stations from Eastern Washington -- which was unusual. But so far, no fantastic MW DX catches.

One of my Halloween pumpkins this year. I will post a Halloween / Autumn pictures blog post soon.

Here's hoping those of you in the Northern Hemisphere are having a great start to Winter, and those in the Southern Reaches of planet Earth are having a great Spring.