Date   

Re: Hello

dwight richardson
 


Portable Ultralight Radio DXing Session - Talbot Road Lookout - 15/05/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 05/15/2020
Report Time: 13:13:33

LOCATION: Talbot Road Lookout, Launceston, Tasmania
RADIO: Digitech AR1733 / 3" FSL Aerial

Freq / Name: 0531kHz - 3GG
Site / Type: Warragul - Commercial - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0540kHz - 7SD
Site / Type: Scottsdale - Commercial - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0585kHz - 7RN
Site / Type: Hobart - National -10kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0594kHz - 3WV
Site / Type: Horsham - National - 50kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0621kHz - 3RN
Site / Type: Melbourne - national - 50kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0693kHz - 3AW
Site / Type: Melbourne - Commercial - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0747kHz - 7PB
Site / Type: Hobart - National - 3.5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0774kHz - 3LO
Site / Type: Melbourne - National - 50kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0828kHz - 3GI
Site / Type: Sale - National - 10kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0855kHz - 3CR
Site / Type: Melbourne - Community -3.5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0864kHz - 7RPH
Site / Type: Hobart - Community - 2kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 0936kHz - 7ZR
Site / Type: Hobart - National - 10kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1071kHz - 3EL
Site / Type: Maryborough - Commercial -5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1080kHz - HPON (Hobart)
Site / Type: Hobart - HPON - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1161kHz - 7FG
Site / Type: Fingal -National - 1kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1314kHz - 3BT
Site / Type: Ballarat - Commercial - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1341kHz - HPON (Geelong)
Site / Type: Geelong - HPON - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1377kHz - 3MP
Site / Type: Melbourne - Commercial - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1422kHz - HPON (Melbourne)
Site / Type: Melbourne - HPON - 5kw
Notes: Logged 15/05/2020 - 12:45

Freq / Name: 1521kHz - 2QN
Site / Type: Deniliquin - Commercial - 2kw
Notes: Logged 15/05/2020 - 12:45

--
Paul - Moderator
UltralightDX


Re: Hello

Mike Sanburn
 

Great to hear from you. 
I think the Sony Ultralights are the best thing since sliced bread. I am currently using a Sangean DT160 as well. Take care.
Mike Sanburn. Lakewood CA


From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> on behalf of dwight richardson <rdrala77@...>
Sent: Wednesday, May 13, 2020 9:02 AM
To: main@UltralightDX.groups.io <main@UltralightDX.groups.io>
Subject: [UltralightDX] Hello
 
Have enjoyed reading posts from this knowledgeable group for the last few months.  I am not a Ham but I do enjoy MW Ultralight Dxing.  Started when I was a kid with a Silvertone 9 transistor and have been off and on since.  I'm 66 now.  I was greatly influenced by articles from Dr. Xin Feng a few years ago and have again picked up the ultralight interest as of late.  His praise of the Sonys was instrumental in my latest foray into ulr DXing. I previously had a Sony SRF-49 and a Sangean DT-110.  But have since purchased a Sony, SRF-29 and SRF-39 from eBay.  I am constantly amazed at the ability of these tiny receivers to routinely bring in some strong signals from 500- 1000 miles away.  Also, picked up a new Sangean DT-500W and Sangean DT-110 Clear on eBay for a steal.  Starting building some AM loops and have ordered supplies for a small ferrite bar antenna.  Great info in this groups current and former members. A big thanks to the entire group for the info and good all around cordial supportive atmosphere of this group.

The Sonys and Sangeans are still around on eBay!  Some still in the original packaging.  Some good used models for under $20 JIC anyone is interested.

Bob Richardson


Portable Ultralight Radio DXing Session - Arbour Park - 14/05/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 05/14/2020
Report Time: 14:53:50

LOCATION: Arbour Park, Launceston, Tasmania
RADIO: Digitech AR1733 / 3" FSL Aerial

Freq / Name: 0531kHz - 3GG
Site / Type: Warragul - Commercial - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0540kHz - 7SD
Site / Type: Scottsdale - Commercial - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0585kHz - 7RN
Site / Type: Hobart - National -10kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0594kHz - 3WV
Site / Type: Horsham - National - 50kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0621kHz - 3RN
Site / Type: Melbourne - national - 50kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0693kHz - 3AW
Site / Type: Melbourne - Commercial - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0747kHz - 7PB
Site / Type: Hobart - National - 3.5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0828kHz - 3GI
Site / Type: Sale - National - 10kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0855kHz - 3CR
Site / Type: Melbourne - Community -3.5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0864kHz - 7RPH
Site / Type: Hobart - Community - 2kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 0936kHz - 7ZR
Site / Type: Hobart - National - 10kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1026kHz - 3PB
Site / Type: Melbourne -National - 10kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1071kHz - 3EL
Site / Type: Maryborough - Commercial -5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1080kHz - HPON (Hobart)
Site / Type: Hobart - HPON - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1179kHz - 3RPH
Site / Type: Melbourne - Community - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1224kHz - 3EA
Site / Type: Melbourne - National - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1242kHz - 3GV
Site / Type: Sale - Commercial - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1260kHz - 3SR
Site / Type: Shepparton - Commercial - 2kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1278kHz - 3EE
Site / Type: Melbourne - Commercial - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1314kHz - 3BT
Site / Type: Ballarat - Commercial - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1341kHz - HPON (Geelong)
Site / Type: Geelong - HPON - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1377kHz - 3MP
Site / Type: Melbourne - Commercial - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1422kHz - HPON (Melbourne)
Site / Type: Melbourne - HPON - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1494kHz - 2AY
Site / Type: Albury - Commercial - 2kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1503kHz - 3KND
Site / Type: Melbourne - Community - 5kw
Notes: Logged 14/05/2020 - 14:30

Freq / Name: 1521kHz - 2QN
Site / Type: Deniliquin - Commercial - 2kw
Notes: Logged 14/05/2020 - 14:30

NOTES: A mid afternoon session at Arbour Park with my Digitech AR1733 and 3" FSL aerial. Signals across the band were outstanding with this being my most successful day time DX session in a long time. 2QN on 1521kHz was a standout and 2AY on 1494kHz also hit good signal levels.


--
Paul - Moderator
UltralightDX


File Download - 9Khz Log Sheet

Paul Blundell
 

https://gofile.io/d/jOf9rq
--
Paul - Moderator
UltralightDX


Tran-Tasman DXing - 13/05/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 05/14/2020
Report Time: 07:44:51

LOCATION: Home, Launceston, Tasmania - 21:00
RADIO: Digitech AR1733 / 3" FSL Aerial

Freq / Name: 0711kHz - TAB TRACKSIDE
Site / Type: Wellington - NZ
Notes: 13/05/2020 - NILL - Bad 4QW overload.

Freq / Name: 0909kHz - STAR
Site / Type: Napier-Hastings - NZ
Notes: 13/05/2020 - POOR @ 2512km

Freq / Name: 1035kHz - NEWSTALK ZB
Site / Type: Wellington - NZ
Notes: 13/05/2020 - AVERAGE

Freq / Name: 1062kHz - RADIO SPORT
Site / Type: Wanganui - NZ
Notes: 13/05/2020 - NILL

Freq / Name: 1197kHz - NEWSTALK ZB
Site / Type: Wanhanui - NZ
Notes: 13/05/2020 - AVERAGE

Freq / Name: 1215kHz - NEWSTALK ZB
Site / Type: Mid Northland - NZ
Notes: 13/05/2020 - POOR

Freq / Name: 1296kHz - NEWSTALK ZB
Site / Type: Hamilton - NZ
Notes: 13/05/2020 - POOR

Freq / Name: 1359kHz - MORE FM
Site / Type: Central Otago - NZ
Notes: 13/05/2020 - NILL

Freq / Name: 1386kHz - RADIO TARANA
Site / Type: Auckland - NZ
Notes: 13/05/2020 - NILL - Very faint traces of audio late in the session. @ 2423km

Freq / Name: 1485kHz - TAB TRACKSIDE
Site / Type: Gisborne - NZ
Notes: 13/05/2020 - NILL

NOTES: A night time session at 21:00 from home with my Digitech AR1733 and 3" FSL aerial. A couple of stations hit good signal levels during this session but a number of stations were missing totally. Radio Tarana on 1386kHz was only heard at the weakest signal levels late in the session, this was a real surprised as normally it can be received most nights.
--
Paul - Moderator
UltralightDX


Re: Hello

Paul Blundell
 

Welcome to the group Bob. I have never owned a Sony radio before but have heard good things about them. 

Paul

On Thu, 14 May 2020, 7:09 a.m. dwight richardson, <rdrala77@...> wrote:
Have enjoyed reading posts from this knowledgeable group for the last few months.  I am not a Ham but I do enjoy MW Ultralight Dxing.  Started when I was a kid with a Silvertone 9 transistor and have been off and on since.  I'm 66 now.  I was greatly influenced by articles from Dr. Xin Feng a few years ago and have again picked up the ultralight interest as of late.  His praise of the Sonys was instrumental in my latest foray into ulr DXing. I previously had a Sony SRF-49 and a Sangean DT-110.  But have since purchased a Sony, SRF-29 and SRF-39 from eBay.  I am constantly amazed at the ability of these tiny receivers to routinely bring in some strong signals from 500- 1000 miles away.  Also, picked up a new Sangean DT-500W and Sangean DT-110 Clear on eBay for a steal.  Starting building some AM loops and have ordered supplies for a small ferrite bar antenna.  Great info in this groups current and former members. A big thanks to the entire group for the info and good all around cordial supportive atmosphere of this group.

The Sonys and Sangeans are still around on eBay!  Some still in the original packaging.  Some good used models for under $20 JIC anyone is interested.

Bob Richardson


--
Paul - Moderator
UltralightDX


Hello

dwight richardson
 

Have enjoyed reading posts from this knowledgeable group for the last few months.  I am not a Ham but I do enjoy MW Ultralight Dxing.  Started when I was a kid with a Silvertone 9 transistor and have been off and on since.  I'm 66 now.  I was greatly influenced by articles from Dr. Xin Feng a few years ago and have again picked up the ultralight interest as of late.  His praise of the Sonys was instrumental in my latest foray into ulr DXing. I previously had a Sony SRF-49 and a Sangean DT-110.  But have since purchased a Sony, SRF-29 and SRF-39 from eBay.  I am constantly amazed at the ability of these tiny receivers to routinely bring in some strong signals from 500- 1000 miles away.  Also, picked up a new Sangean DT-500W and Sangean DT-110 Clear on eBay for a steal.  Starting building some AM loops and have ordered supplies for a small ferrite bar antenna.  Great info in this groups current and former members. A big thanks to the entire group for the info and good all around cordial supportive atmosphere of this group.

The Sonys and Sangeans are still around on eBay!  Some still in the original packaging.  Some good used models for under $20 JIC anyone is interested.

Bob Richardson


Re: FSL History

Paul Blundell
 

Thanks for that information Gary. I sure am a huge fan of my FSL and love reading about some of the history of this and those who helped make them possible.


On Tue, 12 May 2020, 6:14 p.m. Gary DeBock via groups.io, <D1028Gary=aol.com@groups.io> wrote:
<<< The late great Graham Maynard produced some great antenna designs. I say the spiral loop antenna with q multiplier is the best ever MW loop. https://www.americanradiohistory.com/UK/Practical/Wireless/80s/PW%201981%2003.pdf
But you can put the "spin theory" stuff in the same box as Peter Brock's "Energy Polariser" https://jalopnik.com/how-a-box-of-magic-crystals-brought-down-australias-mos-1822559023

Nice guys that lost the plot. >>>

Thanks Andy,

Graham and I shared quite a lot of communication regarding the introduction of his ferrite sleeve loop design in 2011, as well as several other technical projects. But his weird "electron spin theory" certainly didn't bring him any scientific acclaim. and actually caused quite a storm of ridicule and repudiation (not to mention accusations of plagiarism, for using materials bearing some resemblance to a decades-old design by Polydoroff).

In the Ultralight group three determined tinkerers (Steve Ratzlaff, Kevin Schanilec and yours truly) attempted to avoid the firestorm of technical controversy regarding FSL antennas, and concentrated on empirical experimentation to determine the most effective components and FSL design for maximum weak signal sensitivity. All three of us devoted serious resources to the effort, sharing tips with each other (although we didn't always agree on everything). Unfortunately for Graham, the technical ridicule over the "spin electron theory" hounded him continuously after his article, overshadowing what was actually a very brilliant antenna design breakthrough, and decades of innovative antenna experimentation. Sadly, Graham passed away about 3 years after the introduction of his "Ferrite Sleeve" article, before I had the chance to meet him in person, and personally thank him for a design breakthrough which made a huge difference in my own hobby satisfaction.

Gary DeBock (in Puyallup, WA, USA)


--
Paul - Moderator
UltralightDX


Re: FSL History

Gary DeBock
 

<<< The late great Graham Maynard produced some great antenna designs. I say the spiral loop antenna with q multiplier is the best ever MW loop. https://www.americanradiohistory.com/UK/Practical/Wireless/80s/PW%201981%2003.pdf
But you can put the "spin theory" stuff in the same box as Peter Brock's "Energy Polariser" https://jalopnik.com/how-a-box-of-magic-crystals-brought-down-australias-mos-1822559023

Nice guys that lost the plot. >>>

Thanks Andy,

Graham and I shared quite a lot of communication regarding the introduction of his ferrite sleeve loop design in 2011, as well as several other technical projects. But his weird "electron spin theory" certainly didn't bring him any scientific acclaim. and actually caused quite a storm of ridicule and repudiation (not to mention accusations of plagiarism, for using materials bearing some resemblance to a decades-old design by Polydoroff).

In the Ultralight group three determined tinkerers (Steve Ratzlaff, Kevin Schanilec and yours truly) attempted to avoid the firestorm of technical controversy regarding FSL antennas, and concentrated on empirical experimentation to determine the most effective components and FSL design for maximum weak signal sensitivity. All three of us devoted serious resources to the effort, sharing tips with each other (although we didn't always agree on everything). Unfortunately for Graham, the technical ridicule over the "spin electron theory" hounded him continuously after his article, overshadowing what was actually a very brilliant antenna design breakthrough, and decades of innovative antenna experimentation. Sadly, Graham passed away about 3 years after the introduction of his "Ferrite Sleeve" article, before I had the chance to meet him in person, and personally thank him for a design breakthrough which made a huge difference in my own hobby satisfaction.

Gary DeBock (in Puyallup, WA, USA)


Re: FSL History

Michael.2E0IHW
 

Thanks for the link, Paul.

I had this article on the hard-disk,
but lost it, along with other files,
when the disk failed during a backup.

Well worth reading!

Michael UK

On 12/05/2020 02:54, Paul Blundell wrote:
I have recently come across this website, it is a lot to read but gives a great history of the FSL and it's development.
http://www.zen22142.zen.co.uk/Media/fsi.htm
--
Paul - Moderator
UltralightDX


Re: FSL History

Andy ZL3AG
 

The late great Graham Maynard produced some great antenna designs. I say the spiral loop antenna with q multiplier is the best ever MW loop. https://www.americanradiohistory.com/UK/Practical/Wireless/80s/PW%201981%2003.pdf

But you can put the "spin theory" stuff in the same box as Peter Brock's "Energy Polariser" https://jalopnik.com/how-a-box-of-magic-crystals-brought-down-australias-mos-1822559023

Nice guys that lost the plot.

On 12/05/20 1:54 pm, Paul Blundell wrote:
I have recently come across this website, it is a lot to read but gives a great history of the FSL and it's development.
http://www.zen22142.zen.co.uk/Media/fsi.htm


FSL History

Paul Blundell
 

I have recently come across this website, it is a lot to read but gives a great history of the FSL and it's development.
http://www.zen22142.zen.co.uk/Media/fsi.htm

--
Paul - Moderator
UltralightDX


All States DX Challenge

Paul Blundell
 

The All States DX Challenge will see me target a single station in every Australian state, the ACT and also a New Zealand station over the next few months. 

558kHz - 6WA
576kHz - 2RN
585kHz - 7RN
621kHz - 3RN
729KHz - 5RN
909kHz - STAR
1440kHz - 1EA
1548kHz - 4QD

Over this period, I will be regularly monitoring these stations at various times of the day and night from various locations and logging these results.

My custom database (MWDXerDB) has been upgraded to account for this and to allow me to run this project side by side with my normal Ultralight DXing loggings.
--
Paul - Moderator
UltralightDX


DX2020 Challenge - 09/05/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 05/11/2020
Report Time: 09:01:21

Freq / Name: 0531kHz - 3GG
Site / Type: Warragul - Commercial - 5kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - GOOD

Freq / Name: 0621kHz - 3RN
Site / Type: Melbourne - national - 50kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - EXCELLENT

Freq / Name: 0693kHz - 3AW
Site / Type: Melbourne - Commercial - 5kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - GOOD

Freq / Name: 0774kHz - 3LO
Site / Type: Melbourne - National - 50kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - EXCELLENT

Freq / Name: 0828kHz - 3GI
Site / Type: Sale - National - 10kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - GOOD

Freq / Name: 0927kHz - 3UZ
Site / Type: Melbourne - Commercial - 5kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - AVERAGE

Freq / Name: 1224kHz - 3EA
Site / Type: Melbourne - National - 5kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - WEAK

Freq / Name: 1341kHz - HPON (Geelong)
Site / Type: Geelong - HPON - 5kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - AVERAGE

Freq / Name: 1422kHz - HPON (Melbourne)
Site / Type: Melbourne - HPON - 5kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - AVERAGE

Freq / Name: 1566kHz - 3NE
Site / Type: Wangaratta - Commercial - 5kw
Notes: (DX2020) Logged 09/05/2020 - 16:15 - WEAK
--
Paul - Moderator
UltralightDX


DXing Desk

Paul Blundell
 

Finally after a few months of changed living arrangements, I now have a space for my radios. 

My DXing desk allows me to do focus my DXing either as shown to the North, targetting Victoria, New South Wales and Queensland stations or by rotating it 45 degrees left, I can then target South Australia and West Australian stations


http://ultralightradiodxing.blogspot.com/2020/05/dxing-desk.html

--
Paul - Moderator
UltralightDX


Ultralight Radio DXing Session - 08/05/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 05/09/2020
Report Time: 20:04:08

LOCATION: Home, Launceston, Tasmania
RADIO: Digitech AR1733 / 3" FSL Aerial

Freq / Name: 0558kHz - 6WA
Site / Type: Wagin - National - 50kw
Notes: Logged 08/05/2020 - GOOD @ 2769km

Freq / Name: 0711kHz - 4QW
Site / Type: St George - National - 10kw
Notes: Logged 08/05/2020 - WEAK @ 1501km

Freq / Name: 0729KHz - 5RN
Site / Type: Adelaide - National - 50KW
Notes: Logged 08/05/2020 - EXCELLENT @ 1042km

Freq / Name: 0783kHz - 6VA
Site / Type: Albany - Commerical - 2kw
Notes: Logged 08/05/2020 - WEAK @ 2642km

Freq / Name: 0792kHz - 4RN
Site / Type: Brisbane - National - 25kw
Notes: Logged 08/05/2020 - POOR @ 1645km

Freq / Name: 0891kHz - 5AN
Site / Type: Adelaide - National - 50kw
Notes: Logged 08/05/2020 - GOOD @ 1045km

Freq / Name: 0909kHz - STAR
Site / Type: Napier-Hastings - NZ
Notes: Logged 08/05/2020 - WEAK @ 2512km

Freq / Name: 1296kHz - 4RPH
Site / Type: Brisbane - Community - 5kw
Notes: Logged 08/05/2020 - WEAK @ 1645km

Freq / Name: 1296kHz - 6RN
Site / Type: Wagin - National - 10kw
Notes: Logged 08/05/2020 - GOOD @ 2769km

Freq / Name: 1386kHz - RADIO TARANA
Site / Type: Auckland - NZ
Notes: Logged 08/05/2020 - WEAK @ 2423km

Freq / Name: 1539kHz - HPON (Adelaide)
Site / Type: Adelaide - HPON - 5kw
Notes: Logged 08/05/2020 - EXCELLENT @ 1045km

Freq / Name: 1548kHz - 4QD
Site / Type: Emerald - National - 50kw
Notes: Logged 08/05/2020 - AVERAGE @ 1995km

NOTES: Late night session at home. Running the AR1733 with my 3" FSL aerial. I logged a number of stations from West Australian, South Australia, Queensland and two New Zealand stations. Signals were good across the board. 6RN on 1296kHz hit good signal levels late in the session.
--
Paul - Moderator
UltralightDX


Re: Airband Listening

Max Italy
 

Hi, just a technical note, all the DSP portable radios use an external circuit to receive the air band, it is not received directly from the DSP IC (usually Si4735 in our radios)

The external circuit is a TA7358 receiver ic or similar (LA1185, KA22495, AN7205 or chinese versions).

This is a single chip receiver, PLL controlled in our case, with a MIX output, generally 10,7MHz.

The Si4735 is locked to receive 10.7MHz while the microprocessor controls the PLL for tuning. It's a downconversion of the band to IF

In any case i think that for the Air Band there is nothing better than a RTL dongle (SDR) because signals appear and disappear quickly and you can see them in a wide range of frequencies. With some autotuning software it is simple to receive the strongest signal on the band. 

To summarize i would say that with a SDR you receive simultaneusly all the frequencies in a band but activate the audio on one frequency. This is different from scanning in a circular way a group of frequencies. 


Portable Ultralight Radio Go Kit - May2020

Paul Blundell
 

Recently I have been looking at change / improving my Portable Ultralight Radio Go Kit. Until now I have used a few different cases and bags, some have worked really well, others have not been as great. What I enjoy is the challenge of trying different options, the experience I get from this allows me to continue improving my cases, hopefully finally finding the ultimate setup which works for me.

 

I was out doing some shopping recently when I called passed my local Bunnings store, here I found this new case for $30, I decided to replace my previous case as I found it was not working as well as I would have liked. My plan being to use my previous case for my work tools and use this new case for my Ultralight radio DXing kit.

 

I started off at home by sitting all my radios and other pieces of my DXing kit on the foam to see how they would all fit best. After this I cut the foam to suit and pulled out the required sections. Using this foam I decided that to fit in the most amount of radio gear, I would place my 3" FSL in sideways. To do this I had to remove all the foam from around this.

 

After getting my 3" FSL stored safely, I next moved on to cutting the required foam sections to store my radios, batteries, earphones, wire aerial and log sheets. This layout is about the most efficient use of the space that I could do.

 

Overall, I am very pleased with how well this case has come out, I am able to carry and store multiple radios, log sheets, pens, notes, spare batteries and ear phones, everything I need for portable sessions. It is also small enough to fit in my back pack. For $30 it provides a great level of protection. Using the foam means that each item has a home and that they are well protected, it is also much lighter than my previous cases, meaning I will carry it with me more often. It really wins on the price v size v quality scale.

 

While this case was designed for ultralight DXing the same ideas could be used for amateur radio, radio scanning or any other radio storage need.

 

Photos: https://ultralightradiodxing.blogspot.com/2020/05/portable-ultralight-radio-go-kit-may.html

--
Paul - Moderator
UltralightDX


Re: Software - MWDXerDB

Paul Blundell
 


On Mon, Mar 16, 2020 at 11:51 AM Paul Blundell via Groups.Io <tanger32au=gmail.com@groups.io> wrote:
A new video with some information on the updates is below.


https://ultralightradiodxing.blogspot.com/2020/01/software-mwdxerdb.html 

 

On Sun, Mar 15, 2020 at 8:23 PM Paul Blundell via Groups.Io <tanger32au=gmail.com@groups.io> wrote:
*** Update 15th March 2020 ***
Due to a total rewrite of MWDXerDB, please check here for any updates on this project. At this stage I am not offering any technical support of the current (pre March 2020) version.
https://ultralightradiodxing.blogspot.com/2020/01/software-mwdxerdb.html
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Paul - Moderator
UltralightDX



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Paul


--
Paul - Moderator
UltralightDX



--
Paul


--
Paul - Moderator
UltralightDX

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