Date   

Re: For Hans and the group PL-310ET first impressions

Hans Stam <hansstam@...>
 

Nice comments, thanks!

Yes I agree, Tecsun is doing a good job and they listen to the customers..
And who wants more, get the 660 or the 880, but these radios are also not perfect..

This afternoon I was reading about the Tecsun BCL3000, of course not for this group, but I was wondering if this receiver is well sold, have read different comments on it..

Hans

On Tue, 9 Sep 2014, microcode@... [ultralightdx] wrote:

Date: Tue, 9 Sep 2014 13:06:37 +0000
From: "microcode@... [ultralightdx]" <ultralightdx@...>
To: "Hans Stam hansstam@... [ultralightdx]"
<ultralightdx@...>
Subject: Re: [ultralightdx] For Hans and the group PL-310ET first impressions
On Tue, Sep 09, 2014 at 02:48:42PM +0200, Hans Stam hansstam@... [ultralightdx] wrote:
Thanks for your email and impressions..
You are quite welcome. I am new to the group and hope to be able to
contribute something. The 310 has been out for a while and I'm sure many
reviews covered it better than I did, especially since I have been away from
the hobby. But I am excited to give a brief report because I am getting back
into radio again and am amazed at what you can get for not very much money
and in a tiny package.

and overall, you get what you pay for the price of this radio.
Yes, I think there's no question about that. It's a very good value.

So we can t expect the features of a receiver that cost a lot more..
Right and I think that is to be expected. But refreshingly quality was not
sacrificed. They seem to get the cost/performance/feature balance right
which I think is saying a lot, really.

Do I understand well that you are a bit disappointed?
No, not at all. I consider it a work in progress and I'm happy that Tecsun
is bringing these radios to market and making improvements. How many
products have we seen that come out and never get better? Tecsun seems to be
listening and making changes and improvements and that is a very good
thing. R&D is usually so expensive and hard that most companies don't do a
very good job of it or need to charge an arm and a leg for their products. I
think Tecsun hit the sweet spot in offering a pretty nice range of models
perhaps even too many models with most anything you want in a portable.

But if you want more capabilities and features you have to go to a
physically larger and more expensive Tecsun just as you would with any line
of radios.

What about 380, still better in your opinion?
I don't have a 380 but as I understand it the 310 and the 380 are
essentially the same radio except it was explained to me here on the list
earlier that the 310 has an antenna jack and a conventional tuning knob
while the 380 has a tuning wheel and no antenna jack. And I believe he also
mentioned the speaker in the 310 was bigger than the one in the 380.
Otherwise the radios seem identical.



Re: For Hans and the group PL-310ET first impressions

microcode@...
 

On Tue, Sep 09, 2014 at 02:48:42PM +0200, Hans Stam hansstam@... [ultralightdx] wrote:
Thanks for your email and impressions..
You are quite welcome. I am new to the group and hope to be able to
contribute something. The 310 has been out for a while and I'm sure many
reviews covered it better than I did, especially since I have been away from
the hobby. But I am excited to give a brief report because I am getting back
into radio again and am amazed at what you can get for not very much money
and in a tiny package.

and overall, you get what you pay for the price of this radio.
Yes, I think there's no question about that. It's a very good value.

So we can t expect the features of a receiver that cost a lot more..
Right and I think that is to be expected. But refreshingly quality was not
sacrificed. They seem to get the cost/performance/feature balance right
which I think is saying a lot, really.

Do I understand well that you are a bit disappointed?
No, not at all. I consider it a work in progress and I'm happy that Tecsun
is bringing these radios to market and making improvements. How many
products have we seen that come out and never get better? Tecsun seems to be
listening and making changes and improvements and that is a very good
thing. R&D is usually so expensive and hard that most companies don't do a
very good job of it or need to charge an arm and a leg for their products. I
think Tecsun hit the sweet spot in offering a pretty nice range of models
perhaps even too many models with most anything you want in a portable.

But if you want more capabilities and features you have to go to a
physically larger and more expensive Tecsun just as you would with any line
of radios.

What about 380, still better in your opinion?
I don't have a 380 but as I understand it the 310 and the 380 are
essentially the same radio except it was explained to me here on the list
earlier that the 310 has an antenna jack and a conventional tuning knob
while the 380 has a tuning wheel and no antenna jack. And I believe he also
mentioned the speaker in the 310 was bigger than the one in the 380.
Otherwise the radios seem identical.


Re: For Hans and the group PL-310ET first impressions

Hans Stam <hansstam@...>
 

Thanks for your email and impressions..
and overall, you get what you pay for the price of this radio.
So we can t expect the features of a receiver that cost a lot more..
Do I understand well that you are a bit disappointed?
What about 380, still better in your opinion?
 
Hans
>
>
> On Mon, Sep 08, 2014 at 02:43:06PM +0000, microcode@...
> [ultralightdx] wrote:
>
>> On Mon, Sep 08, 2014 at 03:24:04PM +0200, Hans Stam
>> hansstam@... [ultralightdx] wrote:
>>
>>> Nice that you have the experience that your 310 is more quiet
>>> then the
>>> pl660. And fine if you can tell us about the sensitivity of the
>>> 310 and
>>> the 380 on MW.
>>>
> First impressions are the PL-310ET is not nearly as sensitive on MW
> and SW
> as the PL-660 but this is not surprising. What is surprising is the
> PL-310ET
> is very hot on FM as I believe others have pointed out. The 310 pulls
> in
> stations with full quieting with the whip not extended that the 660
> doesn't
> quiet fully even with its larger whip extended.
>
> It's not my thing but I believe it's worth giving this rig a try on
> FM DXing.
>
> The 310's audio into phones on FM stereo is very nice but overall the
> audio
> is thin even into phones compared to the 660, especially on MW and SW.
> However it is very listenable and not tiring. Have not spent much
> time over
> the speaker.
>
> The lack of sync on MW/SW is a glaring omission and a definite issue
> DXing
> although the larger selection of filter widths helps. The sync on the
> 660 is
> extremely good and improves listening on that radio significantly in
> many
> situations.
>
> Unfortunately and probably because it's a radio on chip the 310
> doesn't seem
> to do exactly the same thing all the time. After using it a couple of
> hours
> it seems as noisy if not noisier than my 660 contrary to my initial
> impression. It is also very sensitive to the way it's being held,
> where it's
> being held (iPhone syndrome?) and of course where the ferrite is
> pointed. Some additional shielding is probably in order.
>
>>> If you can check also SW, that would be nice..
>>>
> Again this is a first impression based on a couple hours of listening
> but
> the 310 seems sensitive enough on SW. The issue I have with it is the
> front
> end appears very open and without looking at the signal/noise meter
> it's
> often very hard or even impossible to tell what center frequency the
> signal
> you're hearing is on. While on the 660 you can hear the difference by
> going
> up and down 5 KHz and figure out the center frequency quickly, on the
> 310 I
> found I was often able to move +- 10 or even 15 KHz and couldn't
> decide
> where the center was. Then I realized the radio does know and tells
> you if
> you look at the signal/noise meter. It will be zero or something very
> small
> off-center but will have some positive value on center. This is
> something
> you have to get used to when you're band scanning or stumble across a
> station and want to ID it. Narrowing the filter bandwidth doesn't
> help on
> the 310 in this situation nearly as much as it does on the 660.
>
> If I learned one thing in the few hours I spent with this rig I would
> say I
> am not a fan of DSP radios at least not in the portable category. With
> conventional radios the responses to switch actions are immediate
> because
> the switch is actually doing something. This radio is sluggish to
> respond to
> switch input because the radio is computer controlled and the switch
> isn't
> actually doing what you want, it's telling the radio what you want. I
> find
> myself blowing past desired filter bandwidth and memory locations
> because the radio just can't keep up. It's annoying and needs to be
> dealt with if you are running more than one radio because it makes
> switching back and forth painfully obvious. You can hear some
> chuffing in the audio when operating the controls. This ought to be
> cleaned up.
>
> The switches are positive and I like the flat rectangular keypad
> buttons more than the 660's elongated thin and rolled keys. The
> display is informative but I don't like the etched timer box and
> don't feel it was necessary. The back stand doesn't seem to keep the
> radio straight. On a level table the radio rocks when you use the
> controls. Otherwise the radio feels tight and well made.
>
> The ETM memory is a neat feature but it isn't integrated as smoothly
> as it
> should have been. Once you get into ETM you can't get out by toggling
> the
> ETM switch. You have to toggle the regular memory switch and it's not
> marked
> for that and not exactly intuitive. The manual is wrong or unclear
> about the
> backlight timer. The switch doesn't do what it seems it should. I did
> not
> see it documented but you can hold down the 5 key with the power off
> to
> switch the backlight off completely as I believe on the 380.
>
> For the money and for the form factor I think this series of radios
> (310,
> 380) are going to be very hard to beat. They do offer amazing
> capability for
> their size. Until I got my 310 and put it next to my 660 (which feels
> small
> to me as my previous radios were mostly boat anchors) I didn't
> understand
> why people were making up names for imaginary subclasses of radios
> like
> "ultralight." When you get your hands on one of these tiny wonders
> you will
> understand there really is a class of radios that fits that term
> quite well.
>
> I cannot imagine this as an only radio for a dedicated radio
> enthusiast. It
> simply doesn't have everything you want in one radio and although
> it's very
> good it's far from perfect. However it's such a neat little rig and so
> affordable that I believe many people will be happy with it as a 2nd
> or 3rd
> radio. And it is certainly a very good travel radio. It's so small
> and light
> it's effortless to pack and bring along.
>
> At this price point I believe they ought to clean up the rough edges
> in user
> interface, noise, and add synchronous detection. That may require a
> chip
> revision, I haven't looked to see whether it is there and just not
> implemented in this radio or whether it's not there at all. Otherwise
> it's a
> very good value and hard to fault for what it is.


For Hans and the group PL-310ET first impressions

microcode@...
 

On Mon, Sep 08, 2014 at 02:43:06PM +0000, microcode@... [ultralightdx] wrote:
On Mon, Sep 08, 2014 at 03:24:04PM +0200, Hans Stam hansstam@... [ultralightdx] wrote:
Nice that you have the experience that your 310 is more quiet then the
pl660. And fine if you can tell us about the sensitivity of the 310 and
the 380 on MW.
First impressions are the PL-310ET is not nearly as sensitive on MW and SW
as the PL-660 but this is not surprising. What is surprising is the PL-310ET
is very hot on FM as I believe others have pointed out. The 310 pulls in
stations with full quieting with the whip not extended that the 660 doesn't
quiet fully even with its larger whip extended.

It's not my thing but I believe it's worth giving this rig a try on FM DXing.

The 310's audio into phones on FM stereo is very nice but overall the audio
is thin even into phones compared to the 660, especially on MW and SW.
However it is very listenable and not tiring. Have not spent much time over
the speaker.

The lack of sync on MW/SW is a glaring omission and a definite issue DXing
although the larger selection of filter widths helps. The sync on the 660 is
extremely good and improves listening on that radio significantly in many
situations.

Unfortunately and probably because it's a radio on chip the 310 doesn't seem
to do exactly the same thing all the time. After using it a couple of hours
it seems as noisy if not noisier than my 660 contrary to my initial
impression. It is also very sensitive to the way it's being held, where it's
being held (iPhone syndrome?) and of course where the ferrite is
pointed. Some additional shielding is probably in order.


If you can check also SW, that would be nice..
Again this is a first impression based on a couple hours of listening but
the 310 seems sensitive enough on SW. The issue I have with it is the front
end appears very open and without looking at the signal/noise meter it's
often very hard or even impossible to tell what center frequency the signal
you're hearing is on. While on the 660 you can hear the difference by going
up and down 5 KHz and figure out the center frequency quickly, on the 310 I
found I was often able to move +- 10 or even 15 KHz and couldn't decide
where the center was. Then I realized the radio does know and tells you if
you look at the signal/noise meter. It will be zero or something very small
off-center but will have some positive value on center. This is something
you have to get used to when you're band scanning or stumble across a
station and want to ID it. Narrowing the filter bandwidth doesn't help on
the 310 in this situation nearly as much as it does on the 660.

If I learned one thing in the few hours I spent with this rig I would say I
am not a fan of DSP radios at least not in the portable category. With
conventional radios the responses to switch actions are immediate because
the switch is actually doing something. This radio is sluggish to respond to
switch input because the radio is computer controlled and the switch isn't
actually doing what you want, it's telling the radio what you want. I find
myself blowing past desired filter bandwidth and memory locations because the
radio just can't keep up. It's annoying and needs to be dealt with if you
are running more than one radio because it makes switching back and forth
painfully obvious. You can hear some chuffing in the audio when operating
the controls. This ought to be cleaned up.

The switches are positive and I like the flat rectangular keypad buttons more
than the 660's elongated thin and rolled keys. The display is informative
but I don't like the etched timer box and don't feel it was necessary. The
back stand doesn't seem to keep the radio straight. On a level table the
radio rocks when you use the controls. Otherwise the radio feels tight and
well made.

The ETM memory is a neat feature but it isn't integrated as smoothly as it
should have been. Once you get into ETM you can't get out by toggling the
ETM switch. You have to toggle the regular memory switch and it's not marked
for that and not exactly intuitive. The manual is wrong or unclear about the
backlight timer. The switch doesn't do what it seems it should. I did not
see it documented but you can hold down the 5 key with the power off to
switch the backlight off completely as I believe on the 380.

For the money and for the form factor I think this series of radios (310,
380) are going to be very hard to beat. They do offer amazing capability for
their size. Until I got my 310 and put it next to my 660 (which feels small
to me as my previous radios were mostly boat anchors) I didn't understand
why people were making up names for imaginary subclasses of radios like
"ultralight." When you get your hands on one of these tiny wonders you will
understand there really is a class of radios that fits that term quite well.

I cannot imagine this as an only radio for a dedicated radio enthusiast. It
simply doesn't have everything you want in one radio and although it's very
good it's far from perfect. However it's such a neat little rig and so
affordable that I believe many people will be happy with it as a 2nd or 3rd
radio. And it is certainly a very good travel radio. It's so small and light
it's effortless to pack and bring along.

At this price point I believe they ought to clean up the rough edges in user
interface, noise, and add synchronous detection. That may require a chip
revision, I haven't looked to see whether it is there and just not
implemented in this radio or whether it's not there at all. Otherwise it's a
very good value and hard to fault for what it is.

--


Re: which receiver?

m_a_schuster
 

If the OP is considering a radio the size of the DE-1103 or variant, and lives in the US, then purely on price alone he should have a quick look at the discontinued Radio Shack #2000629 which is an upgraded version of the 20-230 known variously as the DX-402 or Sangean ATS-505(P). It can be had for $35 (or less when there is a special in effect); effectively half price or less.

 

I mentioned this model in the list of my "MW bleed-through resistant" radios last week. While it is clearly "old technology" it appears to have benefitted from undocumented incremental design and component improvements which make it a capable choice, especially for the bargain-basement price.


Re: Tapping on ferrite rod antenna

josephrot
 

RE: <<  I have noticed that some receivers have a tap in the windings of the ferrite coil.  It is about 20% along the length of the coil.  I would like to know the purpose of the tap.  >>
 
Depends...
 
Sometimes, the "tap" is actually a closely-coupled over coil...
 
Most times, it's a tap for other frequency usage...for example, the same basic ferrite rod and loop wire might be usable for both LW and MW frequencies, albeit the tap is usually a consideration of the L/C resonant frequency, that is, it may not be "optimum", but it's usable.
 
Joe Rotello / Knoxville, TN / USA


Akai PW-10

Hans Stam <hansstam@...>
 

Hi..
 
Any experiences with this receiver?
 
 
Hans


Tapping on ferrite rod antenna

Phillips
 

I have noticed that some receivers have a tap in the windings of the ferrite coil.  It is about 20% along the length of the coil.  I would like to know the purpose of the tap.  Currently I am working with a Tecsun DR-920.  It is a chip-based receiver and so chasing the circuitry achieves nothing unless you know the internal workings of the chip.  I also have the MW loopstick from a low performance radio that was pulled to pieces when it failed and it too has a tap on the loopstick winding.

Is this tap for impedance matching purposes or could it be the "tickler" portion of a q multiplier?

Any ideas or contributions most welcome.

All the best,

Ray



Re: which receiver?

Phillip Fimiani
 

Noise can be coming form anywhere...

Computers
Monitors
CFL lamps
LED lamps
X10 modules and now Insteon with UHF control in parallel with the zero crossing signal on the AC
WiFi
Ceiling fans! They shouldn't hum! (see below)
local radio stations (within a mile) 5KW-10KW

All in my den/radio/computer room
Its a wonder I can receive anything at all! But I do....

I do have an up to code electrical grounding system (3 grounding rods) for my house AC and there is almost no resistance between that and the ground rod I use for my radios. (great ground water underneath the lawn)

I could probably do with putting on some supression beads on some equipment. But one can go crazy doing that... http://www.k0bg.com/beads.html

Try turning off devices to see if the noise goes away.
Most everything manufactured today needs to meet  emission standards, but.... Cheap items may not....

I recall a scanner that wiped out some medical telemetry... The solution was to remove it to a more distant location away from the receiver. Watch out for plastic box type appliances....

Check AC wiring for correct polarity and grounding. I delt with a noisy ceiling fan that liked to take out light bulbs. Eventually when replacing it I found the Hot and Neutral were reversed! But that also caused the fan to be quite noisy (AC Hum) Don't know if you have 220v to ground or 110v-gnd-110v but good grounding is still important.

Operating on battery should remove many of the interference problems but bad grounds can cause all kinds of noise.

In regards to CFLs or straight fluorescent tubes....They use solid state ballasts which if bad can radiate all kinds of noise, yet the bulb doesn't flicker. Turn them off one at a time to see if there is a change. You can oprobably say the same for LCD displays and their backlight power supplies. They are just high voltage switching supplies.

Try operating your portable in different locations in the house....Go outside too... There could be a bad AC transformer causing the problem

For your entertainment .....appliances can coexist!

Here's someone in your backyard!  https://www.youtube.com/watch?v=g-LaKTFoh90
 
 
One serious shortwave listener!

Best Regards
Phil
WA2069SWL
Lat: 40.8367633  Long: -74.1768412
 



From: "Hans Stam hansstam@... [ultralightdx]"
To: ultralightdx@...
Sent: Monday, September 8, 2014 7:52 AM
Subject: Re: [ultralightdx] which receiver?

 
Thanks for the reply..
 
But do you have and others experiences with electric noise etc? That was also one of my question..
 
Hans





Re: which receiver?

Hans Stam <hansstam@...>
 

Hi Tudor..

Thanks for the email and indeed I have (connected) what you describe.

Hans

On Mon, 8 Sep 2014, Tudor Vedeanu tmvedeanu@... [ultralightdx] wrote:

Date: Mon, 8 Sep 2014 19:29:32 +0300
From: "Tudor Vedeanu tmvedeanu@... [ultralightdx]"
<ultralightdx@...>
To: ultralightdx@...
Subject: Re: [ultralightdx] which receiver?
On Mon, Sep 8, 2014 at 3:41 PM, Hans Stam hansstam@...
[ultralightdx] <ultralightdx@...> wrote:
This small receiver connected with my longwire antenna, give a good
result and has less! noise then my Sangean ATS 909X on the broadcast
bands..
How do you connect the long wire to the 909X? You should use a coax
cable, (preferably) a balun for impedance matching and a decent ground
connection. My 909X works very well this way.

Tudor


Re: which receiver?

microcode@...
 

On Mon, Sep 08, 2014 at 12:41:20PM -0400, VE3LXL radiove3lxl@... [ultralightdx] wrote:

an ultralight) that is very well shielded - I can have it sitting on a desk
next to a computer monitor and as long as it's hooked up to an outdoor
antenna, I hear almost no noise from the monitor on the radio.
OTOH I can hear my mouse scroll wheel on my PL-660 ;-)


Re: which receiver?

Greg Shoom
 

I'm certainly no expert on electrical noise but here's my two cents worth.

If your home is filled with electrical devices that generate noise, it is almost impossible to escape the noise if your antenna is indoors. Getting an outdoor antenna is essential. Even then, some antenna designs are noisier than others - longwires are bad for picking up noise, for instance. Also, the antenna feedline needs to be insulated or it will pick up noise. If it isn't insulated, it acts as part of the antenna, and the portion that is inside your house will pick up all the noise in there.

Some receivers have noise suppression circuitry, but you're not likely to find this on inexpensive portables.

Some receivers are better shielded than others. My KA-1103 is not well shielded. But on the other hand I have an old Sony ICF-2010 (certainly not an ultralight) that is very well shielded - I can have it sitting on a desk next to a computer monitor and as long as it's hooked up to an outdoor antenna, I hear almost no noise from the monitor on the radio.

Best,
Greg S.


On 8 September 2014 11:23, Vimal Oberoi sumanmed@... [ultralightdx] <ultralightdx@...> wrote:


As I mentioned earlier too, CCEP Radio has provision to switch off internal ferrite antenna without any surgery.But it's big portable with analog tuning, no digital display either.
Vimal


On 08-Sep-2014, at 8:47 pm, "microcode@... [ultralightdx]" <ultralightdx@...> wrote:

 

On Mon, Sep 08, 2014 at 07:45:57AM -0700, Myamiphil myamiphil@... [ultralightdx] wrote:
> When I got my modified 380, the external connector had been removed to directly connect the external FSL. I reinstalled an external antenna jack and wired it such that the Ferrite antenna is disconected when another antenna is plugged in.
>
>
> I plan to use it to connect my Sangean external long wire unit or other antenna (active antenna).
>

Yeah if you don't mind a little surgery then that is certainly the way to
go. But in case Hans isn't ready to slice and dice a brand new radio then it
bears repeating there is no way to disconnect the ferrite rod nor is
there a way to hook up an external antenna for MW or LW on the 310, 660,
etc.

I understand there is a mod for the 880 though. I don't know if it also
requires surgery. There is a youtube video out there somewhere.





Re: which receiver?

Tudor Vedeanu
 

On Mon, Sep 8, 2014 at 3:41 PM, Hans Stam hansstam@...
[ultralightdx] <ultralightdx@...> wrote:
This small receiver connected with my longwire antenna, give a good
result and has less! noise then my Sangean ATS 909X on the broadcast
bands..
How do you connect the long wire to the 909X? You should use a coax
cable, (preferably) a balun for impedance matching and a decent ground
connection. My 909X works very well this way.

Tudor


Re: For Hans and Miami Phil

Hans Stam <hansstam@...>
 

 
I have already contact with anon about some receivers and I will certainly order here..
 
Hans
 


>
>
> On Mon, Sep 08, 2014 at 03:24:04PM +0200, Hans Stam
> hansstam@... [ultralightdx] wrote:
>
>> Thanks Phil..
>>
> I am neither Hans (as you know) nor Phil (as you seem not to know)
> but I did write what you responded to.
>
>> Nice that you have the experience that your 310 is more quiet then
>> the
>> pl660. And fine if you can tell us about the sensitivity of the 310
>> and
>> the 380 on MW.
>>
> I don't have a 380. I was answering two emails in one which seemed
> like a
> good idea at the time but not now ;-)
>
> There is a MW station in Russia at least 1,100 miles from here that I
> can
> pick up clearly every night. I am going to try to compare how this
> station
> sounds on the 660 and the new 310. It will be a good test case
> because it is in a quiet part of the band, the signal is weak, and
> there is significant very slow fading.
>
>> If you can check also SW, that would be nice..
>>
> I will but I'm surely not the only one to have more than one Tecsun
> and it
> will take me a few weeks to draw conclusions unless there are any
> surprises. In the meantime I hope other multi-Tecsun owners will help
> you also.
>
>> Where did you buy your 310?
>>
> I want to avoid mentioning that until I figure out whether I got a
> new unit or a demo model as I mentioned in a previous email to the
> group today. In the meantime I and many other people have had good
> experiences with stores.ebay.com/anonco
>
> I don't think you can go wrong buying from Anon. Their service is
> great and their prices are low. The only thing is if you want the
> absolute lowest price you can sometimes do significantly better. Then
> the question is
> whether you want to risk bad service or getting a surprise and also
> waiting a little longer.


Re: which receiver?

Vimal
 

As I mentioned earlier too, CCEP Radio has provision to switch off internal ferrite antenna without any surgery.But it's big portable with analog tuning, no digital display either.
Vimal


On 08-Sep-2014, at 8:47 pm, "microcode@... [ultralightdx]" <ultralightdx@...> wrote:

 

On Mon, Sep 08, 2014 at 07:45:57AM -0700, Myamiphil myamiphil@... [ultralightdx] wrote:
> When I got my modified 380, the external connector had been removed to directly connect the external FSL. I reinstalled an external antenna jack and wired it such that the Ferrite antenna is disconected when another antenna is plugged in.
>
>
> I plan to use it to connect my Sangean external long wire unit or other antenna (active antenna).
>

Yeah if you don't mind a little surgery then that is certainly the way to
go. But in case Hans isn't ready to slice and dice a brand new radio then it
bears repeating there is no way to disconnect the ferrite rod nor is
there a way to hook up an external antenna for MW or LW on the 310, 660,
etc.

I understand there is a mod for the 880 though. I don't know if it also
requires surgery. There is a youtube video out there somewhere.


Re: which receiver?

microcode@...
 

On Mon, Sep 08, 2014 at 07:45:57AM -0700, Myamiphil myamiphil@... [ultralightdx] wrote:
When I got my modified 380, the external connector had been removed to directly connect the external FSL. I reinstalled an external antenna jack and wired it such that the Ferrite antenna is disconected when another antenna is plugged in.


I plan to use it to connect my Sangean external long wire unit or other antenna (active antenna).
Yeah if you don't mind a little surgery then that is certainly the way to
go. But in case Hans isn't ready to slice and dice a brand new radio then it
bears repeating there is no way to disconnect the ferrite rod nor is
there a way to hook up an external antenna for MW or LW on the 310, 660,
etc.

I understand there is a mod for the 880 though. I don't know if it also
requires surgery. There is a youtube video out there somewhere.


Puyallup, WA Ultralight TP's for 9-8

Gary DeBock
 

Hello All,
 
Asian signals were dramatically improved this morning in both strength and variety as the session finally featured a decent sunrise enhancement boost. The Korean big guns on 972 and 1053 sounded potent indeed, and 1134-KBS  rode the sunrise boost to a pretty vibrant level.
 
After reading Nick's results I tried an earlier (1230 UTC) start time, and both 972-HLCA and 1287-JOHR were already doing quite well in the total darkness. By 1300 HLCA was on a romp, along with the 1053-Jammer and occasional good signals from 693-JOAB and 1134-KBS. The first sign of daylight around 1305 brought a presumed 738-BEL2 out of the noise at a weak level with male Chinese conversation (apparently the standard call-in talk program), along with anemic signals from 603-HLSA and 657-Pyongyang.  1134-KBS hit its peak strength fairly late around 1325, with Korean pop music at a good level (finally prevailing over Vancouver splatter). 693-JOAB also came up to a decent level around this time, becoming the best Japanese performer of the generous session. Overall the propagation was greatly improved over that of the previous week, and hopefully an indication of better days to come. 
 
972  HLCA   Dangjin, S. Korea   Strong-level 3 + 1 time pips and fanfare at the 1300 TOH; best TP signal of the morning 
 
1053  Korean Jammer   Best jam of the new season at 1305
 
73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)
7.5" loopstick tecsun PL-380 Ultralight +
15" FSL antenna
 
 


Re: For Hans and Miami Phil

Phillip Fimiani
 

Thanks for letting me know... But I will still try.... (:-(
 
 
Best Regards
Phil
WA2069SWL
Lat: 40.8367633  Long: -74.1768412
 



From: "microcode@... [ultralightdx]" <ultralightdx@...>
To: ultralightdx@...
Sent: Monday, September 8, 2014 9:18 AM
Subject: [ultralightdx] For Hans and Miami Phil

 
snip.....

Phil,

You were asking if there was a way to control the tuning speed on the
380. AIUI the 310 and 380 are very similar. The light switch on my new 310
ET does not seem to have any effect on the tuning rate. I suspect it is
totally software controlled unlike in the 660 where you can select a fixed
tuning rate or the adaptable tuning rate. Sorry if I got your hopes up
earlier.




Re: which receiver?

Phillip Fimiani
 

When I got my modified 380, the external connector had been removed to directly connect the external FSL. I reinstalled an external antenna jack and wired it such that the Ferrite antenna is disconected when another antenna is plugged in.

I plan to use it to connect my Sangean external long wire unit or other antenna (active antenna).
 
Best Regards
Phil
WA2069SWL
Lat: 40.8367633  Long: -74.1768412
 



From: "microcode@... [ultralightdx]"
To: ultralightdx@...
Sent: Monday, September 8, 2014 9:22 AM
Subject: Re: [ultralightdx] which receiver?

 
But the Tecsuns have the problem that the internal ferrite rod is not
disconnected when you attach an external antenna :-(

> > But do you have and others experiences with electric noise etc? That
> > was also one of my question..

Yes, my office is full of fans and PSUs. And there is a lot of noise. But
like someone else said typically a portable is not going to work well in
that environment, which is why I had suggested a desktop unit and an
external antenna. And see above, Tecsuns don't get less noisy on MW with an
external antenna because the internal antenna is still there picking up
noise.




Re: For Hans and Miami Phil

microcode@...
 

On Mon, Sep 08, 2014 at 03:24:04PM +0200, Hans Stam hansstam@... [ultralightdx] wrote:
Thanks Phil..
I am neither Hans (as you know) nor Phil (as you seem not to know) but I did
write what you responded to.

Nice that you have the experience that your 310 is more quiet then the
pl660. And fine if you can tell us about the sensitivity of the 310 and
the 380 on MW.
I don't have a 380. I was answering two emails in one which seemed like a
good idea at the time but not now ;-)

There is a MW station in Russia at least 1,100 miles from here that I can
pick up clearly every night. I am going to try to compare how this station
sounds on the 660 and the new 310. It will be a good test case because it is
in a quiet part of the band, the signal is weak, and there is significant
very slow fading.

If you can check also SW, that would be nice..
I will but I'm surely not the only one to have more than one Tecsun and it
will take me a few weeks to draw conclusions unless there are any
surprises. In the meantime I hope other multi-Tecsun owners will help you also.

Where did you buy your 310?
I want to avoid mentioning that until I figure out whether I got a new unit
or a demo model as I mentioned in a previous email to the group today. In the
meantime I and many other people have had good experiences with
stores.ebay.com/anonco

I don't think you can go wrong buying from Anon. Their service is great and
their prices are low. The only thing is if you want the absolute lowest
price you can sometimes do significantly better. Then the question is
whether you want to risk bad service or getting a surprise and also waiting
a little longer.


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