Date   

Re: Test bench

Jorge Garzón
 

That's great Paul! Waiting for it! 
73's

Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


En domingo, 29 de noviembre de 2020 00:47:38 CET, Paul Blundell <tanger32au@...> escribió:


That sounds like a great idea. I am planning a portable shootout, once my newest ones arrive.

Paul

On Sun., 29 Nov. 2020, 00:26 Jorge Garzón via groups.io, <iberiaDX=yahoo.com@groups.io> wrote:
Hi...
I would like to start a new section in the blog call 'Test Bench' where I will test portables, UL and similar receivers. I will focus on empiric testing instead to analyze their technical specifications. BTW today's tech info included, together with manuals and directions, are extremely poor most of the times. 

So, I would like to standardize some testings and would like to hear suggestions, if any. 

BANDS GO BE TESTED
Medium Wave and FM (VHF Band II)
(*) - If any other usable band would be included and test it.

FEATURES
Year of appearance, versions, weigth, size, robustness, portability, plug-ins, buttons and prices.

SITES
A. QTH, at home, with unavoidable noise, under real conditions. The receiver response will be better or worse depending on each one's conditions. 
B. Portable, in the field. More or less an ideal site QRM free to check receiver's features. I will do it close at home (pic-nic area at about 300 m away). 

Daylight tests (Ground wave) 
1. Selectivity. With two local stations aside, check filter effectiveness (adjacent QRM and splatter.) 
2. Sensitivity. Tuning in to far and weak signals, the weakest and furthest, the better.
3. Stations nulling. Rejection capacity with ferrite and/or whip. 
4. External antenna. How the receiver performs with an external loop, vertical or small aerials connected. (by induction or direct connection). 

Nighttime (Sky wave)
5. Stations nulling. Rejection capacity with ferrite and/or whip. 
6. QRM Inmunnity (There are more QRM sources at night that can be transmitted and received, affecting to listening conditions). 

Other
7. Audio quality. 
8. Ease of use.

What do you think about it?

73!


Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


Re: Test bench

Michael.2E0IHW
 

Looking forward to your reports and results!

Michael UK

On Sun., 29 Nov. 2020, 00:26 Jorge Garzón via groups.io, <iberiaDX=yahoo.com@groups.io> wrote:
Hi...
I would like to start a new section in the blog call 'Test Bench' where I will test portables, UL and similar receivers. I will focus on empiric testing instead to analyze their technical specifications. BTW today's tech info included, together with manuals and directions, are extremely poor most of the times. 

So, I would like to standardize some testings and would like to hear suggestions, if any. 

BANDS GO BE TESTED
Medium Wave and FM (VHF Band II)
(*) - If any other usable band would be included and test it.

FEATURES
Year of appearance, versions, weigth, size, robustness, portability, plug-ins, buttons and prices.

SITES
A. QTH, at home, with unavoidable noise, under real conditions. The receiver response will be better or worse depending on each one's conditions. 
B. Portable, in the field. More or less an ideal site QRM free to check receiver's features. I will do it close at home (pic-nic area at about 300 m away). 

Daylight tests (Ground wave) 
1. Selectivity. With two local stations aside, check filter effectiveness (adjacent QRM and splatter.) 
2. Sensitivity. Tuning in to far and weak signals, the weakest and furthest, the better.
3. Stations nulling. Rejection capacity with ferrite and/or whip. 
4. External antenna. How the receiver performs with an external loop, vertical or small aerials connected. (by induction or direct connection). 

Nighttime (Sky wave)
5. Stations nulling. Rejection capacity with ferrite and/or whip. 
6. QRM Inmunnity (There are more QRM sources at night that can be transmitted and received, affecting to listening conditions). 

Other
7. Audio quality. 
8. Ease of use.

What do you think about it?

73!


Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)



Re: Test bench

Paul Blundell
 

That sounds like a great idea. I am planning a portable shootout, once my newest ones arrive.

Paul

On Sun., 29 Nov. 2020, 00:26 Jorge Garzón via groups.io, <iberiaDX=yahoo.com@groups.io> wrote:
Hi...
I would like to start a new section in the blog call 'Test Bench' where I will test portables, UL and similar receivers. I will focus on empiric testing instead to analyze their technical specifications. BTW today's tech info included, together with manuals and directions, are extremely poor most of the times. 

So, I would like to standardize some testings and would like to hear suggestions, if any. 

BANDS GO BE TESTED
Medium Wave and FM (VHF Band II)
(*) - If any other usable band would be included and test it.

FEATURES
Year of appearance, versions, weigth, size, robustness, portability, plug-ins, buttons and prices.

SITES
A. QTH, at home, with unavoidable noise, under real conditions. The receiver response will be better or worse depending on each one's conditions. 
B. Portable, in the field. More or less an ideal site QRM free to check receiver's features. I will do it close at home (pic-nic area at about 300 m away). 

Daylight tests (Ground wave) 
1. Selectivity. With two local stations aside, check filter effectiveness (adjacent QRM and splatter.) 
2. Sensitivity. Tuning in to far and weak signals, the weakest and furthest, the better.
3. Stations nulling. Rejection capacity with ferrite and/or whip. 
4. External antenna. How the receiver performs with an external loop, vertical or small aerials connected. (by induction or direct connection). 

Nighttime (Sky wave)
5. Stations nulling. Rejection capacity with ferrite and/or whip. 
6. QRM Inmunnity (There are more QRM sources at night that can be transmitted and received, affecting to listening conditions). 

Other
7. Audio quality. 
8. Ease of use.

What do you think about it?

73!


Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


Test bench

Jorge Garzón
 

Hi...
I would like to start a new section in the blog call 'Test Bench' where I will test portables, UL and similar receivers. I will focus on empiric testing instead to analyze their technical specifications. BTW today's tech info included, together with manuals and directions, are extremely poor most of the times. 

So, I would like to standardize some testings and would like to hear suggestions, if any. 

BANDS GO BE TESTED
Medium Wave and FM (VHF Band II)
(*) - If any other usable band would be included and test it.

FEATURES
Year of appearance, versions, weigth, size, robustness, portability, plug-ins, buttons and prices.

SITES
A. QTH, at home, with unavoidable noise, under real conditions. The receiver response will be better or worse depending on each one's conditions. 
B. Portable, in the field. More or less an ideal site QRM free to check receiver's features. I will do it close at home (pic-nic area at about 300 m away). 

Daylight tests (Ground wave) 
1. Selectivity. With two local stations aside, check filter effectiveness (adjacent QRM and splatter.) 
2. Sensitivity. Tuning in to far and weak signals, the weakest and furthest, the better.
3. Stations nulling. Rejection capacity with ferrite and/or whip. 
4. External antenna. How the receiver performs with an external loop, vertical or small aerials connected. (by induction or direct connection). 

Nighttime (Sky wave)
5. Stations nulling. Rejection capacity with ferrite and/or whip. 
6. QRM Inmunnity (There are more QRM sources at night that can be transmitted and received, affecting to listening conditions). 

Other
7. Audio quality. 
8. Ease of use.

What do you think about it?

73!


Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


Re: Long Term DX Project - 27/11/2020

Paul Blundell
 

Great to hear.

Most nights I can log stations on most frequencies, I have been keeping a list of this and will update this in the next few weeks as I get time.

On Fri., 27 Nov. 2020, 23:07 Max Italy, <max2013@...> wrote:

Hi Paul, i tried to listen the KiwiSDR near Launceston at 11.00 UTC and i see signals in all the 9kHz channels and 5 or 6 more in the extended band. That makes a total of more than 100 stations.
The antenna is a Carolina Windom 40 http://www.radioworks.com/ccw40.html
According to my experience with a kiwiSDR near my home with similar antenna i think that most of these signals should be received with a indoor air loop antenna or FSL. Maybe not all in the same night because many are below readability but many of them.

What is your experience?


Re: Long Term DX Project - 27/11/2020

Max Italy
 

Hi Paul, i tried to listen the KiwiSDR near Launceston at 11.00 UTC and i see signals in all the 9kHz channels and 5 or 6 more in the extended band. That makes a total of more than 100 stations.
The antenna is a Carolina Windom 40 http://www.radioworks.com/ccw40.html
According to my experience with a kiwiSDR near my home with similar antenna i think that most of these signals should be received with a indoor air loop antenna or FSL. Maybe not all in the same night because many are below readability but many of them.

What is your experience?


Long Term DX Project - 27/11/2020

Paul Blundell
 

Date: 27/11/2020

 

Time: 12:15am

Location: Home, Launceston Tasmania

Notes: A late night session, just after midnight. A good mix of signals across the band with the three, 50KW big guns all hitting excellent signal levels. 3GG on 531kHz was a little down compared to what I would expect. 3KND on 1503Khz was a better signal than I was expecting. This was my first session with my “new” AR-1733 so this might have accounted for part of this.

 

FREQ

CALLSIGN

LOGGED

DATE

RADIO

AERIAL

531

3GG

GOOD

27/11/2020

AR-1733

Internal

549

2CR

AVERAGE

27/11/2020

AR-1733

Internal

594

3WV

EXCELLENT

27/11/2020

AR-1733

Internal

621

3RN

EXCELLENT

27/11/2020

AR-1733

Internal

774

3LO

EXCELLENT

27/11/2020

AR-1733

Internal

1053

2CA

AVERAGE

27/11/2020

AR-1733

Internal

1179

3RPH

AVERAGE

27/11/2020

AR-1733

Internal

1341

HPON GEELONG

GOOD

27/11/2020

AR-1733

Internal

1422

HPON MELBOURNE

GOOD

27/11/2020

AR-1733

Internal

1503

3KND

GOOD

27/11/2020

AR-1733

Internal

 


Re: A step back

Paul Blundell
 

I sometimes do the same, go back to an older / simpler radio and just see what I can hear. The band over your way sounds like it is fairly packed, down here we have a few clear frequencies with only one station on them.

Paul

On Fri, Nov 27, 2020 at 1:59 AM Richard Allen via groups.io <dx747j=me.com@groups.io> wrote:
When I began ultralight DX-ing, I primarily used a barefoot Sony SRF-T615 and using it heard most of the station I’ve logged since.  So this morning, I decided to put the Skywave and FSL combo aside to listen again with the tiny Sony.  Among the stations heard before sunrise were CBK 540, CKRM 620 and CKOM 650 from Saskatchewan.  Last evening I was able to pull KDKA passed local (24 km away) KOKP.  There is definitely more QRM now than a decade ago.  It’s impossible to hear a clear channel signal anywhere on the broadcast band such as 40-50 years ago.  While the T615 lacks the good signal selectivity it has outstanding nulling ability.  

Happy Thanksgiving Day and good DX all.

Richard Allen,
near Perry OK USA.



--
Paul


A step back

Richard Allen
 

When I began ultralight DX-ing, I primarily used a barefoot Sony SRF-T615 and using it heard most of the station I’ve logged since.  So this morning, I decided to put the Skywave and FSL combo aside to listen again with the tiny Sony.  Among the stations heard before sunrise were CBK 540, CKRM 620 and CKOM 650 from Saskatchewan.  Last evening I was able to pull KDKA passed local (24 km away) KOKP.  There is definitely more QRM now than a decade ago.  It’s impossible to hear a clear channel signal anywhere on the broadcast band such as 40-50 years ago.  While the T615 lacks the good signal selectivity it has outstanding nulling ability.  

Happy Thanksgiving Day and good DX all.

Richard Allen,
near Perry OK USA.


KYVA 1230 NM heard on Sangean DT 160

Mike Sanburn
 

Tonight at 8PM Pacific time 'caught top of hour ID from KYVA. Call sign is painfully similar to that of my L.A. local KYPA, but 'heard Gallup very distinctly. I wish it would have stayed around long enough for a good reception report. At the top of the hour one of the stations played "Right Down The Line" by Gerry Rafferty, but I imagine that was KXO El Centro CA. Even later a Spanish speaking station became dominant. I believe KOY Phoenix has that format currently. 1230 is quite the Mulligans Stew right now here in Southern California so I'll park there for a while and see what other surprises are in store. 73
Mike Sanburn
Lakewood CA


File /7. Feature Articles/Guide to Airband Listening With UltraLight Radios.pdf uploaded #file-notice

main@UltralightDX.groups.io Notification <noreply@...>
 

The following files have been uploaded to the Files area of the main@UltralightDX.groups.io group.

By: Paul Blundell


Re: CKMX 1060 Calgary AB

Gord Seifert
 


   Hi Mike.

   The coast (north-south) seems to be quite strong fairly regularly. I'm in Chilliwack, BC (50 miles east of Vancouver, BC). I usually get both of the stations you mentioned quite dependably of course. But right now I am listening to 640 KFI in LA. Listenable most of the time with some fades tonight. What really surprises me is 1530 KFBK in Sacramento. It sounds like it is in my backyard! Of course, it is subject to fades as well. Using a Digitech AR-1780 right now. My cat is staring at me right now so I suppose I had better mention that I always have at least one around here too. 

   Regards, 
   Gord 


Re: 2021 Radio Challenges

Paul Blundell
 

Over the net couple of weeks I would like to prepare some challenges for next year, if any interest in these exists.


Rare DX

Paul Blundell
 

Recently I was talking with an old friend (who is an active amateur operator) and my interest in ultralight DXing came up. He was keen on this and to him it sounds like a very interesting hobby and a possible extension of this SOTA activities.

What he asked and this got me thinking is what do we (as a hobby) consider rare DX? In the amateur radio world, this can be defined easily by various countries being less / non active on the air or the use of various modes / power levels (QRP). For somebody to say X is rare DX, what criteria can we use? Do we allow for things like stations being off the air which then allows another station to be heard in their place? What about those areas without / limited MW broadcasters, do you consider this is an advantage to those DX'ers?

I don't have the answers, just a mind that does not stop thinking.

Paul 


New Zealand Frequency Listing

Paul Blundell
 

What is the more up to date / confirmed list of New Zealand stations? I have the below link, is this still the best source?
http://www.radioheritage.net/NZRG.asp?band=AM&lorder=F


Re: AR-1733 Fault

Paul Blundell
 

You should be ok. My AR1780 was solid.


On Tue., 24 Nov. 2020, 04:59 Gord Seifert, <gks61711@...> wrote:

  Hope that does not effect the AR-1780! Just had one arrive yesterday and am pretty impressed. It seems just as good as either the PL-310et or the Eton Satellit Grundig Edition in reception. The AGC is far better than that in theTecsun where it is way too slow to keep up with fluttery fading. Also the bandwidth filters seem much more usable than those in the Tecsun where they seem to accentuate the high pitched background hiss. Audio is better than the Tecsun but not as good as the Satellit. The SSB is far better than the Satellit's. In the Satellit it is mainly useless for use on a normal signal to select one sideband or the other to avoid interference from a nearby signal. The AR-1780's SSB is very useful for that. Exremely stable! And the separate fine tuning wheel is wonderful. With SSB, on it is just like the extremely fine tuning of the Satellit, plus or minus very small amounts, which should be excellent for a true SSB signal. WIth SSB off, the fine tuning is in 1kHz steps so you almost never need to chose between fast and slow on the main tuning knob. ATS works but is not near as useful as in either of the others. There is no provision for deleting, copying or pasting a frequency that I can find. Do a scan and you need to keep your eyes on it since it just flashes up a message that it is saving something into a particular slot. If you miss the message you won't know how many frequencies it saved. You can not browse through saved frequencies with the tuning knob like you can with the PL-380et. You need to press 0 through 9 and then switch to another page and again press 0 through 9 again to scan through them. But least there are 10 slots per page, a bit more sensible than the Satellit where a page has seven slots. Nice radio! I would not like to see it die like the AR-1733 seems to do.

  Regards,
  Gord


Re: AR-1733 Fault

Paul Blundell
 

I have owned a few of these and this is the first one that has done this.

Paul

On Mon., 23 Nov. 2020, 22:56 Michael.2E0IHW via groups.io, <blumu=btinternet.com@groups.io> wrote:
The same happened to mine. I was happy with it until then...
Before donating it to landfill, I will probably tear it apart and
see if any bits can be recycled. Maybe the speaker...

Michael UK

On 23/11/2020 10:25, Paul Blundell wrote:
Over the weekend, my AR-1733 died. The display went off, thinking it was flat batteries I swapped these over, this made no difference.

Today I returned it to Jaycar, they have seen this before, if the batteries go dead flat, they can lock up and even with new batteries they won't work.

End rest is a new radio which does work. If you have one of these, please keep this in mind.

Paul



Re: AR-1733 Fault

Paul Blundell
 

I guess you don't let them go dead flat or remove the batteries before this happens.

Paul

On Mon., 23 Nov. 2020, 22:39 Jorge Garzón via groups.io, <iberiaDX=yahoo.com@groups.io> wrote:
That's a crazy bug, as batteries go flat oftenly. How do you avoid that? 

Jorge Garzón (EB7EFA · EA1036 SWL) 
QTH: IN83ag / 43º15' N · 03º56' W
Urb. San Roque 95, casa 5 (Villasevil)
39698 Santiurde de Toranzo (ESPAÑA - SPAIN)
..................................................................................
Blog: IberiaDX  · Twitter: @IberiaDX


En lunes, 23 de noviembre de 2020 11:25:22 CET, Paul Blundell <tanger32au@...> escribió:


Over the weekend, my AR-1733 died. The display went off, thinking it was flat batteries I swapped these over, this made no difference.

Today I returned it to Jaycar, they have seen this before, if the batteries go dead flat, they can lock up and even with new batteries they won't work.

End rest is a new radio which does work. If you have one of these, please keep this in mind.

Paul


Re: AR-1733 Fault

Gord Seifert
 


  Hope that does not effect the AR-1780! Just had one arrive yesterday and am pretty impressed. It seems just as good as either the PL-310et or the Eton Satellit Grundig Edition in reception. The AGC is far better than that in theTecsun where it is way too slow to keep up with fluttery fading. Also the bandwidth filters seem much more usable than those in the Tecsun where they seem to accentuate the high pitched background hiss. Audio is better than the Tecsun but not as good as the Satellit. The SSB is far better than the Satellit's. In the Satellit it is mainly useless for use on a normal signal to select one sideband or the other to avoid interference from a nearby signal. The AR-1780's SSB is very useful for that. Exremely stable! And the separate fine tuning wheel is wonderful. With SSB, on it is just like the extremely fine tuning of the Satellit, plus or minus very small amounts, which should be excellent for a true SSB signal. WIth SSB off, the fine tuning is in 1kHz steps so you almost never need to chose between fast and slow on the main tuning knob. ATS works but is not near as useful as in either of the others. There is no provision for deleting, copying or pasting a frequency that I can find. Do a scan and you need to keep your eyes on it since it just flashes up a message that it is saving something into a particular slot. If you miss the message you won't know how many frequencies it saved. You can not browse through saved frequencies with the tuning knob like you can with the PL-380et. You need to press 0 through 9 and then switch to another page and again press 0 through 9 again to scan through them. But least there are 10 slots per page, a bit more sensible than the Satellit where a page has seven slots. Nice radio! I would not like to see it die like the AR-1733 seems to do.

  Regards,
  Gord


Re: AR-1733 Fault

Michael.2E0IHW
 

The same happened to mine. I was happy with it until then...
Before donating it to landfill, I will probably tear it apart and
see if any bits can be recycled. Maybe the speaker...

Michael UK

On 23/11/2020 10:25, Paul Blundell wrote:
Over the weekend, my AR-1733 died. The display went off, thinking it was flat batteries I swapped these over, this made no difference.

Today I returned it to Jaycar, they have seen this before, if the batteries go dead flat, they can lock up and even with new batteries they won't work.

End rest is a new radio which does work. If you have one of these, please keep this in mind.

Paul


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