Date   

Ultralight Radio DXing Session - 20/04/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 04/21/2020
Report Time: 13:16:40

LOCATION: Home, Launceston, Tasmania
RADIO: Digitech AR1733

Freq / Name: 0549kHz - 2CR
Site / Type: Cumnock - 50000W
Notes: (National) - Logged 20/04/2020 - 22:30

Freq / Name: 0576kHz - 2RN
Site / Type: Sydney - 50000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 0585kHz - 7RN
Site / Type: Hobart - 10000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 0603kHz - 2RN
Site / Type: Nowra - 10000W
Notes: (National)Logged 20/04/2020 - 22:30

Freq / Name: 0621kHz - 3RN
Site / Type: Melbourne - 50000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 0630kHz - 2PB
Site / Type: Sydney - 10000W
Notes: (National)Logged 20/04/2020 - 22:30

Freq / Name: 0639kHz - 2HC
Site / Type: Coffs Harbour - 5k
Notes: (Commercial)Logged 20/04/2020 - 22:30

Freq / Name: 0666kHz - 2CN
Site / Type: Canberra - 5000W
Notes: (National)Logged 20/04/2020 - 22:30

Freq / Name: 0693kHz - 3AW
Site / Type: Melbourne - 5000W
Notes: (Commercial) - Logged 20/04/2020 - 22:30

Freq / Name: 0702kHz - 2BL
Site / Type: Sydney - 50000W
Notes: (National) Logged 20/04/2020 - 22:30

Freq / Name: 0720kHz - 3MT
Site / Type: Omeo - 2000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 0729KHz - 5RN
Site / Type: Adelaide - 50000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 0738kHz - 2NR
Site / Type: Grafton - 50000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 0765kHz - 2EC
Site / Type: Bega - 5000W
Notes: (Commercial)Logged 20/04/2020 - 22:30

Freq / Name: 0774kHz - 3LO
Site / Type: Melbourne - 50000W
Notes: (National) - Logged 20/04/2020 - 22:30

Freq / Name: 0810kHz - 2BA
Site / Type: Bega - 10000W
Notes: (Commercial)Logged 20/04/2020 - 22:30

Freq / Name: 0846kHz - 2RN
Site / Type: Canberra - 10000W
Notes: (National)Logged 20/04/2020 - 22:30

Freq / Name: 0855kHz - 3CR
Site / Type: Melbourne - 3500W
Notes: (Community) - Logged 20/04/2020 - 22:30

Freq / Name: 0864kHz - 7RPH
Site / Type: Hobart - 2000W
Notes: (Community) - Logged 20/04/2020 - 22:30

Freq / Name: 0873kHz - 2GB
Site / Type: Sydney NSW - 6k
Notes: (Commercial) - Logged 20/04/2020 - 22:30

Freq / Name: 0882kHz - 3RPH
Site / Type: Warmambool - 2000W
Notes: (Community) -Logged 20/04/2020 - 22:30

Freq / Name: 0891kHz - 5AN
Site / Type: Adelaide - 50000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 0963kHz - 2RG
Site / Type: Griffith - 5000W
Notes: (Commercial)Logged 20/04/2020 - 22:30

Freq / Name: 0981kHz - 3HA
Site / Type: Hamiliton - 2000W
Notes: (Commercial) -Logged 20/04/2020 - 22:30

Freq / Name: 1026kHz - 3PB
Site / Type: Melbourne - 10000W
Notes: (National) -Logged 20/04/2020 - 22:30

Freq / Name: 1053kHz - 2CA
Site / Type: Canberra - 5000W
Notes: (Commercial) - Logged 20/04/2020 - 22:30

Freq / Name: 1089kHz - 3WM
Site / Type: Horsham - 5000W
Notes: (Commercial) - Logged 20/04/2020 - 22:30

Freq / Name: 1125kHz - 1RPH
Site / Type: Canberra - 2000W
Notes: (Community)-Logged 20/04/2020 - 22:30

Freq / Name: 1152kHz - 2WG
Site / Type: Wagga Wagga - 2000W
Notes: (Commercial)-Logged 20/04/2020 - 22:30

Freq / Name: 1179kHz - 3RPH
Site / Type: Melbourne - 5000W
Notes: (Community) -Logged 20/04/2020 - 22:30

Freq / Name: 1206kHz - 2CC
Site / Type: Canberra - 5000W
Notes: (Commercial)-Logged 20/04/2020 - 22:30

Freq / Name: 1224kHz - 3EA
Site / Type: Melbourne - 5000W
Notes: (National)-Logged 20/04/2020 - 22:30

Freq / Name: 1233kHz - 2NC
Site / Type: Newcastle - 10000W
Notes: (National)-Logged 20/04/2020 - 22:30

Freq / Name: 1242kHz - 3GV
Site / Type: Sale - 5000W
Notes: (Commercial)-Logged 20/04/2020 - 22:30

Freq / Name: 1251kHz - 2DU
Site / Type: Dubbo - 2000W
Notes: (Commercial)-Logged 20/04/2020 - 22:30

Freq / Name: 1278kHz - 3EE
Site / Type: Melbourne - 5000W
Notes: (Commercial)-Logged 20/04/2020 - 22:30

Freq / Name: 1314kHz - 3BT
Site / Type: Ballarat - 5000W
Notes: (Commercial)-Logged 20/04/2020 - 22:30

Freq / Name: 1332kHz - 3SH
Site / Type: Victoria - 2000W
Notes: (Commercial) - Logged 20/04/2020 - 22:30

Freq / Name: 1341kHz - HPON (Geelong)
Site / Type: Geelong - 5000W
Notes: (HPON) - Logged 20/04/2020 - 22:30

Freq / Name: 1413kHz - 2EA
Site / Type: Newcastle - 5000W
Notes: (National)-Logged 20/04/2020 - 22:30

Freq / Name: 1422kHz - HPON (Melbourne)
Site / Type: Melbourne - 5000W
Notes: (HPON) - Logged 20/04/2020 - 22:30

Freq / Name: 1440kHz - 1EA
Site / Type: Canberra -  2000W
Notes: (National) - Logged 20/04/2020 - 22:30

Freq / Name: 1494kHz - 2AY
Site / Type: Albury - 2000W
Notes: (Commercial) -Logged 20/04/2020 - 22:30

Freq / Name: 1503kHz - 3KND
Site / Type: Melbourne - 5000W
Notes: (Community)-Logged 20/04/2020 - 22:30

Freq / Name: 1521kHz - 2QN
Site / Type: Deniliquin - 2000W
Notes: (Commercial) -Logged 20/04/2020 - 22:30

Freq / Name: 1566kHz - 3NE
Site / Type: Wangaratta - 5000W
Notes: (Commercial) - Logged 20/04/2020 - 22:30

Freq / Name: 1593kHz - HPON (Melbourne)
Site / Type: Melbourne - 5000W
Notes: (HPON) -Logged 20/04/2020 - 22:30

NOTES: Late night session at home. Running the AR1733 barefoot, I logged a number of stations. Huge signals were coming out of New South Wales and the ACT, I was able to relog / reconfirm a number of stations. A number of Victorian stations were very much down in signal level.




--
Paul - Moderator
UltralightDX


Re: Portable Ultralight FM Radio DXing Kit - April 2020

Paul Blundell
 

Portable Ultralight FM Radio DXing Kit - April 2020 - New Photos

https://ultralightradiodxing.blogspot.com/2020/04/portable-ultralight-fm-radio-dxing-kit.html
--
Paul - Moderator
UltralightDX


Re: Portable Ultralight Radio DXing Session - 17/04/2020

Jerry Rappel
 

Very cool.


On Thu, Apr 16, 2020 at 9:23 PM Paul Blundell <tanger32au@...> wrote:
-------------------------
**MWDXerDB - Report**
Report Date: 04/17/2020
Report Time: 11:19:09

LOCATION: Punchbowl Reserve, Launceston, Tasmania
RADIO: TEAC PR130

Freq / Name: 0531kHz - 3GG
Site / Type: Warragul - 5000W
Notes: (Commercial) - Logged 17/04/2020

Freq / Name: 0540kHz - 7SD
Site / Type: Scottsdale -5000W
Notes: (Commercial) - Logged 17/04/2020

Freq / Name: 0585kHz - 7RN
Site / Type: Hobart - 10000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0594kHz - 3WV
Site / Type: Horsham - 50000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0621kHz - 3RN
Site / Type: Melbourne - 50000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0693kHz - 3AW
Site / Type: Melbourne - 5000W
Notes: (Commercial) -Logged 17/04/2020

Freq / Name: 0747kHz - 7PB
Site / Type: Hobart - 3500W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0774kHz - 3LO
Site / Type: Melbourne - 50000W
Notes: (National) -Logged 17/04/2020

Freq / Name: 0936kHz - 7ZR
Site / Type: Hobart - 10000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 1314kHz - 3BT
Site / Type: Ballarat - 5000W
Notes: (Commerical) -Logged 17/04/2020

Freq / Name: 1341kHz - HPON (Geelong)
Site / Type: Geelong - 5000W
Notes: (HPON) -Logged 17/04/2020

NOTES: Morning session at the Punchbowl Reserve while out for a walk. Signals were generally good and a couple of stations were coming in at great signal levels.


--
Paul - Moderator
UltralightDX


Portable Ultralight Radio DXing Session - 17/04/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 04/17/2020
Report Time: 11:19:09

LOCATION: Punchbowl Reserve, Launceston, Tasmania
RADIO: TEAC PR130

Freq / Name: 0531kHz - 3GG
Site / Type: Warragul - 5000W
Notes: (Commercial) - Logged 17/04/2020

Freq / Name: 0540kHz - 7SD
Site / Type: Scottsdale -5000W
Notes: (Commercial) - Logged 17/04/2020

Freq / Name: 0585kHz - 7RN
Site / Type: Hobart - 10000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0594kHz - 3WV
Site / Type: Horsham - 50000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0621kHz - 3RN
Site / Type: Melbourne - 50000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0693kHz - 3AW
Site / Type: Melbourne - 5000W
Notes: (Commercial) -Logged 17/04/2020

Freq / Name: 0747kHz - 7PB
Site / Type: Hobart - 3500W
Notes: (National) - Logged 17/04/2020

Freq / Name: 0774kHz - 3LO
Site / Type: Melbourne - 50000W
Notes: (National) -Logged 17/04/2020

Freq / Name: 0936kHz - 7ZR
Site / Type: Hobart - 10000W
Notes: (National) - Logged 17/04/2020

Freq / Name: 1314kHz - 3BT
Site / Type: Ballarat - 5000W
Notes: (Commerical) -Logged 17/04/2020

Freq / Name: 1341kHz - HPON (Geelong)
Site / Type: Geelong - 5000W
Notes: (HPON) -Logged 17/04/2020

NOTES: Morning session at the Punchbowl Reserve while out for a walk. Signals were generally good and a couple of stations were coming in at great signal levels.


--
Paul - Moderator
UltralightDX


Re: ULR FM DX 4/15/2020

Paul Blundell
 

Well done and thank you for sharing your logging.

Paul

On Fri, 17 Apr 2020, 12:00 a.m. Richard Allen via groups.io, <dx747j=me.com@groups.io> wrote:
An E-skip opening yesterday caught me unprepared for the coming FM DX season here.
At 2254 UTC I heard WGCU-FM, Fort Myers FL, on 90.1 coming in over nearby KUCO, Edmond OK.  I was quite surprised because skip normally occurs later in spring.  Heard on a barefoot Tecsun PL-606, it is station number 877 logged with an ultralight here.  WGCU-FM is 1823 km / 1133 miles distance from my QTH.

 I’m definitely looking forward to hearing more soon.

Good DX all.

Richard Allen,
near Perry OK USA.




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UltralightDX


ULR FM DX 4/15/2020

Richard Allen <dx747j@...>
 

An E-skip opening yesterday caught me unprepared for the coming FM DX season here.
At 2254 UTC I heard WGCU-FM, Fort Myers FL, on 90.1 coming in over nearby KUCO, Edmond OK. I was quite surprised because skip normally occurs later in spring. Heard on a barefoot Tecsun PL-606, it is station number 877 logged with an ultralight here. WGCU-FM is 1823 km / 1133 miles distance from my QTH.

I’m definitely looking forward to hearing more soon.

Good DX all.

Richard Allen,
near Perry OK USA.


Re: AM radio that use a chip for the receive circuitry

Kenny Murray
 

yes there are  sites that have this and often compare the radios..

simply put tho.. the new silicon labs chip does a good job.. in some general items


and also

a good preformer is the countycomm gp5ssb  whis is the same as the tecsun pl365

other makes are such as the kaito it has a larger ferrite


most folks can tell you the tecsun newer radios are best price preformance


i have the gp5ssb and live in the city in a brick structure and a lot of concrete.. works well for me and runs for days from batteries




======================== Kenneth J. Murray VO1KJM EM: murraykj709@... Telephone: 506-962-8401 ======================== Inmarsat: AOR WEST: 011-870-76-4156467 ============================================================================= Confidentiality : This message is intended only for the use of the individual or entity to which it is adressed and may contain information which is confidential and privileged. Confidentiality and privilege are not lost by this email having been sent to the wrong person. If you are not the intended recipient or the person responsible to deliver it to the intended recipient, please notify us by email and delete this document immediately. Any distribution, reproduction or other of this email by unintended recipient is prohibited.


On Saturday, April 4, 2020, 9:15:23 AM ADT, lamontcranston17 <nojunk@...> wrote:


  I'm following a thread on a group with an argument about whether new AM radios are now mostly designed with a chip
for the radio receive circuitry.
  Does anyone have a website with either a list of radios using specific chips for the receive circuitry
or a list of the chips used for receive circuitry?

                                        Thanks Mikek





Hobby or Passion or Interest

Paul Blundell
 


Trans-Tasman DXing - 14/04/2020

Paul Blundell
 

-------------------------
**MWDXerDB - Report**
Report Date: 04/15/2020
Report Time: 08:57:25
 
 
LOCATION: Home, Launceston Tasmania - 14/04/2020
RADIO: Digitech AR-1733 / AERIAL: 3" Baby FSL
 
Freq / Name: 0711kHz - TAB TRACKSIDE
Site / Type: Wellington - NZ
Notes: 14/04/2020 - NILL
 
Freq / Name: 0909kHz - STAR
Site / Type: Napier-Hastings - NZ
Notes: 14/04/2020 - WEAK
 
Freq / Name: 1035kHz - NEWSTALK ZB
Site / Type: Wellington - NZ
Notes: 14/04/2020 - WEAK
 
Freq / Name: 1062kHz - RADIO SPORT
Site / Type: Wanganui - NZ
Notes: 14/04/2020 - NILL
 
Freq / Name: 1197kHz - NEWSTALK ZB
Site / Type: Wanhanui - NZ
Notes: 14/04/2020 - NILL
 
Freq / Name: 1215kHz - NEWSTALK ZB
Site / Type: Mid Northland - NZ
Notes: 14/04/2020 - POOR
 
Freq / Name: 1296kHz - NEWSTALK ZB
Site / Type: Hamilton - NZ
Notes: 14/04/2020 - GOOD. .co.nz domain name / Talk back about living in Christchurch.
 
Freq / Name: 1359kHz - MORE FM
Site / Type: Central Otago - NZ
Notes: 14/04/2020 - NILL
 
Freq / Name: 1386kHz - RADIO TARANA
Site / Type: Auckland - NZ
Notes: 14/04/2020 - AVERAGE
 
Freq / Name: 1485kHz - TAB TRACKSIDE
Site / Type: Gisborne - NZ
Notes: 14/04/2020 - NILL
 
https://ultralightradiodxing.blogspot.com/2020/04/trans-tasman-dxing-14042020.html
--
Paul - Moderator
UltralightDX


NZ TAB Radio off the air

Paul Blundell
 


From ICDX-AM group.
Groups.io
This is a digest for ICDX-AM . View all your groups.io groups, and edit your subscriptions, here.
Do not reply to this email. To reply to a message, click the Reply link under the message.
TOPICS IN THIS DIGEST:
.
1.New Zealand's TAB Trackside Radio off the air
MESSAGES:
.
1a. 
New Zealand's TAB Trackside Radio off the air
From: Bryan Clark
Date: Mon, 13 Apr 2020 05:59:21 AEST

Good morning.

Just completed a bandscan of frequencies that have been occupied by the TAB’s Trackside network in NZ.  They announced on 9 April that broadcasts would cease at midnight last night and this morning (1900 UTC) I found their frequencies occupied as follows:

 

549   Only Newstalk ZB Nelson (ex Sport), Rhema Kaitaia and an Aussie

711    Open Carrier

828    Open Carrier

873    Newstalk ZB Ashburton and Open Carrier

954    Open Carrier with 2UE Sydney through it. No sign of Coast Dunedin

990    Apna Auckland all alone

1071  RNZ National Masterton all alone

1206  2 Aussies here

1224  2 Aussies here

1242  1XX Whakatane strong, unid carrier

1260  Open Carrier and an Aussie

1476  Open Carrier

1485  Open Carrier and possible Aussie

1548  Coast Palmerston North and an Open Carrier.

Hopefully the next step is for a tech to visit the Trackside transmitters and power them down, opening up some new DX opportunities in NZ and Australia!

Bryan


--
Treasurer & Life Member - NZ Radio DX League
Broadcast News Editor - 'NZ DX Times'
World Radio TV Handbook - South Pacific Collaborator
Google Earth: 36°07'07"S, 174°36'10"E
WinRadio G33DDC Excalibur Pro & AOR7030+ receivers with
EWE directional antennas to North, Central & South America

View/Reply Online | Reply To Group | Reply To Sender | Mute Topic | Top ^ | New Topic
Groups.io


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UltralightDX


LTL Project - 11/04/2020

Paul Blundell
 

Long Term Listening Project.
All signals are rated between S0 (no signal) to S9 (full strength).

-------------------------
**FMDXerDB - Report**
Report Date: 04/12/2020
Report Time: 13:52:56

Freq / Name: 087.8MHz - LC FM
Site / Type: Launceston College, Tasmania - Community
Notes: (LTL Project - S4) 

Freq / Name: 095.3MHz - Tamar FM
Site / Type: Mt George, George Town, Tasmania - Community
Notes: (LTL Project - S5) 

Freq / Name: 095.7MHz - 7SD
Site / Type: Mt Victoria, North East Tasmania - Commercial 
Notes: (LTL Project - S2) 

Freq / Name: 096.9MHz - Meander Valley FM
Site / Type: Gardners Ridge, Westbury - Community
Notes: (LTL Project - S4) 

Freq / Name: 098.9MHz - 7AD
Site / Type: Devonport, Tasmania - Commercial
Notes: (LTL Project - S2) 

Freq / Name: 099.7MHz - 7SD (FM)
Site / Type: Mt Horror, Tasmania - Commercial
Notes: (LTL Project - S2) 

Freq / Name: 100.5MHz - ABC
Site / Type: Devonport, Tasmania - National
Notes: (LTL Project - S1) 

Freq / Name: 101.7MHz - SEA FM
Site / Type: Table Cape, Tasmania - Commercial
Notes: (LTL Project - S0) 

Freq / Name: 105.7MHz - SBS Hobart
Site / Type: Mt Wellington, Tasmania - National
Notes: (LTL Project - S0) 

Freq / Name: 107.7MHz - SEA FM
Site / Type: Devonport, Tasmania - Commercial
Notes: (LTL Project - S0) 
--
Paul - Moderator
UltralightDX


Re: Low Cost FM Aerial Testing – April 2020

Alfredo Gallerati
 

Very Happy Good EASTER!
Please have all my Best WIshes for
a Happy New Year

Alfredo Gallerati
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Sent: Saturday, April 11, 2020 12:17 AM
Subject: Re: [UltralightDX] Low Cost FM Aerial Testing – April 2020
 
Thanks for posting this link and information, I have downloaded this and will have a play around with it.
 
Paul
 
On Fri, Apr 10, 2020 at 10:23 AM Phillips <phillicom@...> wrote:
For those getting serious about "wire" antennas there is some free antenna simulating software that I have used and found to be quite good.  It will calculate rabbit-ears, beverages, yagis, whips, wire loops, flags, moxons....lots.   If you are designing an antenna for the commercial FM band then it is very useful.  I used it for ham radio antennas and found that the performance of the real antenna closely matched the software predictions.  It comes with a number of example antennas which are useful for user training and as project templates.
 
The software runs on windows and is called mMANA-GAL.  It is available for free download from http://gal-ana.de/basicmm/en/  .  The download link is at the bottom of the (quite long) page. 
 
To use it, you need to specify the three-dimensional end points of each element (wire) and the element characteristics such as metal used and diameter.  You can put resistors, inductors and capacitors into the build - good for beverages and directional loops.  The software will show the resonant frequency(s), impedance, bandwidth, directional pattern, etc.  It even has an optimize function to do some of the donkey-work for you.
 
It is not good for magnetic loop antennas but there are a number of magnetic loop calculators that can be found using a search engine.
 
May your QRM always be below your noise floor,
 
Ray
 

From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> on behalf of Paul Blundell <tanger32au@...>
Sent: Wednesday, 8 April 2020 1:23 PM
To: main@ultralightdx.groups.io <main@ultralightdx.groups.io>
Subject: Re: [UltralightDX] Low Cost FM Aerial Testing – April 2020
 
Thanks for the reply Kevin.
 
I aim to undertake some more testing of this when I can get outside.
 
On Wed, Apr 8, 2020 at 1:25 PM kevin asato <kc6pob@...> wrote:
i tend to prefer rabbit ears myself as they are easy to rotate as well as position the antenna elements at different angles to aid reception - either flavor, HD or non-HD for those that care about package labels. RF does not make the distinction !!. In the extreme case, a large outdoor TV antenna works well, too. Obviously the outdoor TV antenna is just not as portable but aids in DX as the FM broadcast band in Los Angeles is full.
73,
kevin
kc6pob
 
On Tue, Apr 7, 2020 at 1:20 PM Paul Blundell <tanger32au@...> wrote:
Over the past few days, I have been testing a few different low cost / simple aerials for use on the FM broadcast band (87.5-108MHz).
 
All these aerials have a cost of under $10, the idea of this test was to see which one would do the best job of pulling in signals on a range of test frequencies, these are a mix of community stations and also some commercial stations from both the North West and South of the state.
 
The table below shows the results of each aerial on each frequency. All stations were checked on multiple radios at different times of the day and night to account for any differences, the results below are the best each aerial was able to pull in each station during these times.
 
Normal in-built whip
3M of wire hanging vertically from a window.
$6 VHF/UHF TV Rabbits Ears
1/4 wave whip
1/8 wave whip

FREQUENCY - STATION
Standard Whip
3M Wire
Rabbits Ears
1/4 Wave Whip
1/8 Wave Whip
 
087.8MHz - LC FM
0
5
5
3
3
 
095.3MHz - TAMAR FM
0
5
6
6
5
 
096.9MHz - MEANDER VALLEY FM
0
2
2
1
2
 
098.9MHz - 7AD
0
1
0
2
1
 
101.7MHz - SEA FM BURNIE
0
1
1
1
0
 
105.7Mhz - SBS Hobart
0
0
0
0
0
 
107.7MHz - SEA FM DEVONPORT
0
0
1
2
0
 

Overall, the four external aerials all preformed much better than the built-in whip. Both the Rabbits Ears and 1/4 wave whip performed much the same and tied for the best signal levels, the Rabbit Ears having the advantage of being smaller and easier to move around. The 3M length of wire was not far behind with the 1/8 wave whip being the poorest of these four, it still however pulled in four stations that were missing on the standard whip.
 
These tested were preformed at home (due to the current COVID-19 restrictions) I am planning on repeating these tests again in the future for a lookout and seeing what difference this makes.
 
 
 























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UltralightDX
 
 
--
Paul
 

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UltralightDX
 
 
--
Paul
 

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Paul - Moderator
UltralightDX


Portable Ultralight FM Radio DXing Kit - April 2020

Paul Blundell
 

My constant search for a radio carry case has continued...

With my new focus on Ultralight FM radio DXing, my radio kit has changed, a couple of radios have been removed, I no longer carry my 3" FSL as often and I was finding my previous case with it's custom wooden dividers to be too heavy. After looking at the price of replacement foam, I decided this was not worth the price, being almost as much as a totally new case.

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 FM 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. 

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.





--
Paul - Moderator
UltralightDX


Re: AM radio that use a chip for the receive circuitry

Max Italy
 

Hi Ray,

the Si4735 ic is not discontinued and can be found on Ebay, it is currently used in many radios and that's the one used in most projects shown in the Si47XX for Radio Experimenters facebook group;
Also check the Youtube channel of Ricardo Caratti the administrator to see some fresh videos https://www.youtube.com/user/pu2clr/videos
and his github for the library for arduino here: https://github.com/pu2clr/SI4735


Re: Low Cost FM Aerial Testing – April 2020

Paul Blundell
 

Thanks for posting this link and information, I have downloaded this and will have a play around with it.

Paul

On Fri, Apr 10, 2020 at 10:23 AM Phillips <phillicom@...> wrote:
For those getting serious about "wire" antennas there is some free antenna simulating software that I have used and found to be quite good.  It will calculate rabbit-ears, beverages, yagis, whips, wire loops, flags, moxons....lots.   If you are designing an antenna for the commercial FM band then it is very useful.  I used it for ham radio antennas and found that the performance of the real antenna closely matched the software predictions.  It comes with a number of example antennas which are useful for user training and as project templates.

The software runs on windows and is called mMANA-GAL.  It is available for free download from http://gal-ana.de/basicmm/en/  .  The download link is at the bottom of the (quite long) page. 

To use it, you need to specify the three-dimensional end points of each element (wire) and the element characteristics such as metal used and diameter.  You can put resistors, inductors and capacitors into the build - good for beverages and directional loops.  The software will show the resonant frequency(s), impedance, bandwidth, directional pattern, etc.  It even has an optimize function to do some of the donkey-work for you.

It is not good for magnetic loop antennas but there are a number of magnetic loop calculators that can be found using a search engine.

May your QRM always be below your noise floor,

Ray


From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> on behalf of Paul Blundell <tanger32au@...>
Sent: Wednesday, 8 April 2020 1:23 PM
To: main@ultralightdx.groups.io <main@ultralightdx.groups.io>
Subject: Re: [UltralightDX] Low Cost FM Aerial Testing – April 2020
 
Thanks for the reply Kevin.

I aim to undertake some more testing of this when I can get outside.

On Wed, Apr 8, 2020 at 1:25 PM kevin asato <kc6pob@...> wrote:
i tend to prefer rabbit ears myself as they are easy to rotate as well as position the antenna elements at different angles to aid reception - either flavor, HD or non-HD for those that care about package labels. RF does not make the distinction !!. In the extreme case, a large outdoor TV antenna works well, too. Obviously the outdoor TV antenna is just not as portable but aids in DX as the FM broadcast band in Los Angeles is full.
73,
kevin
kc6pob

On Tue, Apr 7, 2020 at 1:20 PM Paul Blundell <tanger32au@...> wrote:
Over the past few days, I have been testing a few different low cost / simple aerials for use on the FM broadcast band (87.5-108MHz).
 
All these aerials have a cost of under $10, the idea of this test was to see which one would do the best job of pulling in signals on a range of test frequencies, these are a mix of community stations and also some commercial stations from both the North West and South of the state.
 
The table below shows the results of each aerial on each frequency. All stations were checked on multiple radios at different times of the day and night to account for any differences, the results below are the best each aerial was able to pull in each station during these times.
 
Normal in-built whip
3M of wire hanging vertically from a window.
$6 VHF/UHF TV Rabbits Ears
1/4 wave whip
1/8 wave whip

FREQUENCY - STATION
Standard Whip
3M Wire
Rabbits Ears
1/4 Wave Whip
1/8 Wave Whip
 
087.8MHz - LC FM
0
5
5
3
3
 
095.3MHz - TAMAR FM
0
5
6
6
5
 
096.9MHz - MEANDER VALLEY FM
0
2
2
1
2
 
098.9MHz - 7AD
0
1
0
2
1
 
101.7MHz - SEA FM BURNIE
0
1
1
1
0
 
105.7Mhz - SBS Hobart
0
0
0
0
0
 
107.7MHz - SEA FM DEVONPORT
0
0
1
2
0
 

Overall, the four external aerials all preformed much better than the built-in whip. Both the Rabbits Ears and 1/4 wave whip performed much the same and tied for the best signal levels, the Rabbit Ears having the advantage of being smaller and easier to move around. The 3M length of wire was not far behind with the 1/8 wave whip being the poorest of these four, it still however pulled in four stations that were missing on the standard whip.
 
These tested were preformed at home (due to the current COVID-19 restrictions) I am planning on repeating these tests again in the future for a lookout and seeing what difference this makes.
 
 
 























--
Paul - Moderator
UltralightDX


--
Paul


--
Paul - Moderator
UltralightDX



--
Paul


--
Paul - Moderator
UltralightDX


Re: AM radio that use a chip for the receive circuitry

Phillips
 

Thanks Andy,

Yes, I have been bitten by the forged chip syndrome. 

I bought what I thought were two seven band audio spectrum chips but, for the life of me, could not get them to work properly.  They were marked very clearly as seven banders but did not respond properly to the seven band coding libraries.  After much recoding and retesting,  they started to give rational results.  Turns out that they were five band chips not seven. 

I wanted a five band analyser and had planned to use code to merge a couple of the bands but the five band chips saved me the trouble and so the forgeries actually worked in my favour.

A search on the 'net turned up others that had found the same forgeries.  What I find incongruous is that I could not find five band chips from the usual sources.

I'm yet to find a Chinese 8x8 RGB LED matrix that works properly (given up on finding one).

I think that part of the trouble is that many sellers are only dropshipper agents.  They have little knowledge of electronics and are just agents for larger suppliers.  They don't have the knowledge or resources to test what they sell and are totally reliant on the manufacturers.  Many are operating on margins as low as 2%  and can't afford to upset their suppliers.  The manufacturers are divorced from the end buyer and don't care what grief comes back from faulty products and so they can adopt poor practices with impunity.

Caveat emptor,

Ray


From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> on behalf of Andy ZL3AG via groups.io <zl3ag@...>
Sent: Thursday, 9 April 2020 10:23 AM
To: main@UltralightDX.groups.io <main@UltralightDX.groups.io>
Subject: Re: [UltralightDX] AM radio that use a chip for the receive circuitry
 

Hi Ray,

I can't find my notes right now to give you speficis, but be aware that many of the chips shipping from china are old versions, and many of the breakout boards and modules don't bring all of the chip leads out so you can't always make use of all the features of the installed chip.

So to avoid disappointment, you need to look at close up photos of the items to try to figure out which one would be best for the job.
Cheers,

Andy


On 9/04/20 12:43 pm, Phillips wrote:
> Hi All,
>
> I would like to try my hand at using a MCU such as an Arduino to control a Si4735.
>
> Si4735's are available on eBay Australia 5 for $US7.14 ($AU11.55), but they are SSOP packages.
>
> My old eyes and shaky hands can't handle SMD's even with magnifying lenses.
>
> Does anyone know if/where I can get Si4735's in a through hole package or on a breakout board?
>
>
> Stay safe folks,
>
> Ray
>




Re: AM radio that use a chip for the receive circuitry

Phillips
 

Thanks Guys,

Photos on the FaceBook show exactly what I am looking for.   The problem is that the product seems to be discontinued from the usual sources but, at least, I now know that it exists.  I will keep an eye on FaceBook to see if it comes back into stock or an alternate becomes available.

Thanks again,
Ray
 


From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> on behalf of h. garcia <pu3hag.l@...>
Sent: Friday, 10 April 2020 1:10 AM
To: main@ultralightdx.groups.io <main@ultralightdx.groups.io>
Subject: Re: [UltralightDX] AM radio that use a chip for the receive circuitry
 
Hi Ray, Andy --

Ray, there an active Facebook group called "Si47xx For Radio Experimenters". Several guys already sharing their buildings and tests. I'm sure you can ask questions there and the member will warmly help.

This is the link to the group:


On Wed, Apr 8, 2020, 9:54 PM Andy ZL3AG via groups.io <zl3ag=radioengineering.com@groups.io> wrote:

Hi Ray,

I can't find my notes right now to give you speficis, but be aware that many of the chips shipping from china are old versions, and many of the breakout boards and modules don't bring all of the chip leads out so you can't always make use of all the features of the installed chip.

So to avoid disappointment, you need to look at close up photos of the items to try to figure out which one would be best for the job.
Cheers,

Andy


On 9/04/20 12:43 pm, Phillips wrote:
> Hi All,
>
> I would like to try my hand at using a MCU such as an Arduino to control a Si4735.
>
> Si4735's are available on eBay Australia 5 for $US7.14 ($AU11.55), but they are SSOP packages.
>
> My old eyes and shaky hands can't handle SMD's even with magnifying lenses.
>
> Does anyone know if/where I can get Si4735's in a through hole package or on a breakout board?
>
>
> Stay safe folks,
>
> Ray
>




Re: AM radio that use a chip for the receive circuitry

Phillips
 

Hi Max,

You have opened an Aladdin's cave for me.  I have not studied each sheet (yet) but have scanned a few and found the KT0936m to be quite interesting because of its sensitivity.    I will put in some study time to see what can be done with the chips.   Using the sharp tuning of a FSL and the sensitivity of the KT0936m might yield some interesting results.



Thank you,

Ray

 



From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> on behalf of Max Italy <max2013@...>
Sent: Thursday, 9 April 2020 10:59 PM
To: main@UltralightDX.groups.io <main@UltralightDX.groups.io>
Subject: Re: [UltralightDX] AM radio that use a chip for the receive circuitry
 

Here i uploaded some datasheets for radio ic with mechanical tuning (do not need to program a MCU).
http://maximradio.altervista.org/datasheets/
They are from KTmicro, AKC Technology and Silicon Labs.
Some were avaialble only in Chinese and i translated them to english

KT0936M is supposed to be even better than the Si4825;
a discussion can be found on the CQHAM.RU forum, you have to use google translator
http://www.cqham.ru/forum/showthread.php?39304


Re: Low Cost FM Aerial Testing – April 2020

Phillips
 

For those getting serious about "wire" antennas there is some free antenna simulating software that I have used and found to be quite good.  It will calculate rabbit-ears, beverages, yagis, whips, wire loops, flags, moxons....lots.   If you are designing an antenna for the commercial FM band then it is very useful.  I used it for ham radio antennas and found that the performance of the real antenna closely matched the software predictions.  It comes with a number of example antennas which are useful for user training and as project templates.

The software runs on windows and is called mMANA-GAL.  It is available for free download from http://gal-ana.de/basicmm/en/  .  The download link is at the bottom of the (quite long) page. 

To use it, you need to specify the three-dimensional end points of each element (wire) and the element characteristics such as metal used and diameter.  You can put resistors, inductors and capacitors into the build - good for beverages and directional loops.  The software will show the resonant frequency(s), impedance, bandwidth, directional pattern, etc.  It even has an optimize function to do some of the donkey-work for you.

It is not good for magnetic loop antennas but there are a number of magnetic loop calculators that can be found using a search engine.

May your QRM always be below your noise floor,

Ray


From: main@UltralightDX.groups.io <main@UltralightDX.groups.io> on behalf of Paul Blundell <tanger32au@...>
Sent: Wednesday, 8 April 2020 1:23 PM
To: main@ultralightdx.groups.io <main@ultralightdx.groups.io>
Subject: Re: [UltralightDX] Low Cost FM Aerial Testing – April 2020
 
Thanks for the reply Kevin.

I aim to undertake some more testing of this when I can get outside.

On Wed, Apr 8, 2020 at 1:25 PM kevin asato <kc6pob@...> wrote:
i tend to prefer rabbit ears myself as they are easy to rotate as well as position the antenna elements at different angles to aid reception - either flavor, HD or non-HD for those that care about package labels. RF does not make the distinction !!. In the extreme case, a large outdoor TV antenna works well, too. Obviously the outdoor TV antenna is just not as portable but aids in DX as the FM broadcast band in Los Angeles is full.
73,
kevin
kc6pob

On Tue, Apr 7, 2020 at 1:20 PM Paul Blundell <tanger32au@...> wrote:
Over the past few days, I have been testing a few different low cost / simple aerials for use on the FM broadcast band (87.5-108MHz).
 
All these aerials have a cost of under $10, the idea of this test was to see which one would do the best job of pulling in signals on a range of test frequencies, these are a mix of community stations and also some commercial stations from both the North West and South of the state.
 
The table below shows the results of each aerial on each frequency. All stations were checked on multiple radios at different times of the day and night to account for any differences, the results below are the best each aerial was able to pull in each station during these times.
 
Normal in-built whip
3M of wire hanging vertically from a window.
$6 VHF/UHF TV Rabbits Ears
1/4 wave whip
1/8 wave whip

FREQUENCY - STATION
Standard Whip
3M Wire
Rabbits Ears
1/4 Wave Whip
1/8 Wave Whip
 
087.8MHz - LC FM
0
5
5
3
3
 
095.3MHz - TAMAR FM
0
5
6
6
5
 
096.9MHz - MEANDER VALLEY FM
0
2
2
1
2
 
098.9MHz - 7AD
0
1
0
2
1
 
101.7MHz - SEA FM BURNIE
0
1
1
1
0
 
105.7Mhz - SBS Hobart
0
0
0
0
0
 
107.7MHz - SEA FM DEVONPORT
0
0
1
2
0
 

Overall, the four external aerials all preformed much better than the built-in whip. Both the Rabbits Ears and 1/4 wave whip performed much the same and tied for the best signal levels, the Rabbit Ears having the advantage of being smaller and easier to move around. The 3M length of wire was not far behind with the 1/8 wave whip being the poorest of these four, it still however pulled in four stations that were missing on the standard whip.
 
These tested were preformed at home (due to the current COVID-19 restrictions) I am planning on repeating these tests again in the future for a lookout and seeing what difference this makes.
 
 
 























--
Paul - Moderator
UltralightDX


--
Paul


--
Paul - Moderator
UltralightDX


Re: AM radio that use a chip for the receive circuitry

h. garcia
 

Hi Ray, Andy --

Ray, there an active Facebook group called "Si47xx For Radio Experimenters". Several guys already sharing their buildings and tests. I'm sure you can ask questions there and the member will warmly help.

This is the link to the group:


On Wed, Apr 8, 2020, 9:54 PM Andy ZL3AG via groups.io <zl3ag=radioengineering.com@groups.io> wrote:

Hi Ray,

I can't find my notes right now to give you speficis, but be aware that many of the chips shipping from china are old versions, and many of the breakout boards and modules don't bring all of the chip leads out so you can't always make use of all the features of the installed chip.

So to avoid disappointment, you need to look at close up photos of the items to try to figure out which one would be best for the job.
Cheers,

Andy


On 9/04/20 12:43 pm, Phillips wrote:
> Hi All,
>
> I would like to try my hand at using a MCU such as an Arduino to control a Si4735.
>
> Si4735's are available on eBay Australia 5 for $US7.14 ($AU11.55), but they are SSOP packages.
>
> My old eyes and shaky hands can't handle SMD's even with magnifying lenses.
>
> Does anyone know if/where I can get Si4735's in a through hole package or on a breakout board?
>
>
> Stay safe folks,
>
> Ray
>



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