Date   

My Portable Radio Kit

Paul Blundell
 

These are some photos of my portable scanning kit. The smaller carry case is my "daily carry" which goes with me most of the time. The larger black case is for more serious scanning or overnight trips.


Launceston Radio Scanning: My Portable Scanning Kit



Re: Tecsun PL880

Guy Atkins
 

Hi Troy,

Thanks for your thoughtful additions to the conversation. 

I'm not the best person to delve into the details of ULR definitions, as I'm mostly in the SDR radio camp right now and just somewhat dabble in the ULR side of things. However, I've been with this Yahoo Group from the beginning so I've seen a lot of conversations and topics come and go over the years. I do have the benefit living in the same town as one of the group's co-founders-- Gary DeBock, the driving force behind the growing Ultralight Radio niche and the key proponent of FSL antennas and experimentation. I have certainly learned a lot about this side of the radio hobby simply by being in close contact with Gary!

I would agree that the "Unlimited" category has an allure to it. I like to think of crazy-big antennas feeding simple portable radios as a kind of Frankenstein experimentation; you'll never know what kind of "DXing monster" you'll create until you try it! It is also akin to the fringes of the drag race / hot rodding / muscle car fraternity. I'm sure we've all seen (at least in pictures) very small economy cars with humongous V8 engines stuffed under the hood, turning a meek grocery-getter into a wild beast of a car. Why would a hot rod enthusiast do this? Because he CAN! There's no practical reason... it's all about the fun factor, and in the end, a hobby is what you want to make of it. 

A few years ago, moderator Kevin Schanilec made this statement about the ULR definitions, which I think was very good:

-------------------------------
The definition of what constitutes an "Ultralight" went through significant deliberation and review, and the definitions are where we ended up. There is some flexibility built in, as you have observed, and when a new radio comes along, it is looked at on its own merits, a decision is made, and we move on. I can appreciate that not everyone would necessarily choose these criteria, and DXers are of course free to use whatever they like: however, in this corner of the hobby, this is what we've settled on. At the same time, we welcome participation from DXers of all types, and only ask that the choices made here are respected. In the end, the intent is to provide criteria for this niche of the hobby which, like QRP and crystal sets, involves placing voluntary constraints on the gear you use in order to provide extra challenge and interest.

-------------------------------

So in the end, what really  matters is how an individual chooses to enjoy the radio hobby, Troy, whether your radio choices fall within the definitions of the Ultralights Yahoo Group or not. 

73,

Guy Atkins
Puyallup, WA



Re: 10KHz steps in PL-3x0 series? [1 Attachment]

Ken Kizer
 

On Wed, 13 May 2015 17:22:43 +0000 (UTC), you wrote:

I have a pl380.... There has to be a way of running thru the MW band
for Europe and the US.. Europe is 9kHz steps, the US is 10 kHz steps....
The op manual shows how to do it by rotating the freq knob at different
speeds.... Ive copied the section of the manual (see attachment)
There's no way I can determine to tune slowly in 10khz steps. The
method you referenced (the same for the pl390) doesn't work, or I'm
doing it wrong.

Ken

Ive had a hard time myself.... I have an Sangean ATS909 and that has
a slide switch to change the stepping...  Best Regards Phil
KD2HTN / WA2069SWL
Lat: 40.8367633  Long: -74.1768412


Re: 10KHz steps in PL-3x0 series?

Phillip Fimiani
 

I have a pl380.... There has to be a way of running thru the MW band for Europe and the US.. Europe is 9kHz steps, the US is 10 kHz steps.... The op manual shows how to do it by rotating the freq knob at different speeds.... Ive copied the section of the manual (see attachment)


Ive had a hard time myself.... I have an Sangean ATS909 and that has a slide switch to change the stepping...
 
 
Best Regards
Phil
KD2HTN / WA2069SWL
Lat: 40.8367633  Long: -74.1768412
 


From: "cfa@... [ultralightdx]"
To: ultralightdx@...
Sent: Wednesday, May 13, 2015 12:20 PM
Subject: Re: [ultralightdx] 10KHz steps in PL-3x0 series?

 
I gave up trying to figure it out. Now I just manually enter each
frequency. That takes fewer movements than dealing with the tuning
knob.

Ken

>Good morning all!
>
>I'm a bit frustrated with my PL-390
>
>(390 is not a ultralight due its size, but it shares a lot with PL310 and
>380, that's why I thought writing to you).
>
>The VFO configuration is torturing me! I don't have the dexterity needed to
>move across the dial, it's either too slow or too fast.
>
>Have anybody found a way or even a mod to have the VFO always in 10KHz
>steps mode? I would love to be certain that each click of the knob is the
>previous/next AM channel.
>
>Thank you!
>
>-- pu3hag huelbe



Re: 10KHz steps in PL-3x0 series?

Ken Kizer
 

I gave up trying to figure it out. Now I just manually enter each
frequency. That takes fewer movements than dealing with the tuning
knob.

Ken

Good morning all!

I'm a bit frustrated with my PL-390

(390 is not a ultralight due its size, but it shares a lot with PL310 and
380, that's why I thought writing to you).

The VFO configuration is torturing me! I don't have the dexterity needed to
move across the dial, it's either too slow or too fast.

Have anybody found a way or even a mod to have the VFO always in 10KHz
steps mode? I would love to be certain that each click of the knob is the
previous/next AM channel.

Thank you!

-- pu3hag huelbe


10KHz steps in PL-3x0 series?

h. garcia
 

Good morning all!

I'm a bit frustrated with my PL-390 

(390 is not a ultralight due its size, but it shares a lot with PL310 and 380, that's why I thought writing to you).

The VFO configuration is torturing me! I don't have the dexterity needed to move across the dial, it's either too slow or too fast. 

Have anybody found a way or even a mod to have the VFO always in 10KHz steps mode? I would love to be certain that each click of the knob is the previous/next AM channel. 

Thank you!

-- pu3hag huelbe 


Re: Tecsun PL880

Troy Riedel
 

Guy,

This is only semi-related to Sarmento's post ...

As shortwave stations have waned, I've become more interested in AM DX & I joined this group less than 6-months ago.  I receive & read the daily postings (I've always had interest in pulling-in that distant AM station since childhood).  I have five "pocket portable", "compact portable" and "portable" shortwave receivers but none would meet the group's ultralight definition.  I'd disagree that my G6 Aviator is an ultralight as I don't use SSB for AM DX (I tried after reading the group's definition and I didn't find it helped) - and I paid under $100 for it new but I won't argue that the MSRP was over $100 when released, yada yada yada (no debate necessary - I've read the old posts re: the G6 debate ... there were several from a couple of years ago so I'm caught-up re: the history so no need to re-visit "why", I'm up-to-speed).

Anyway, I have a difficult time understanding the "Unlimited" category.  Or maybe more succinctly maybe it's the allure?  Maybe a DX-pedition would change my mind?  But when you start adding/modifying with extra antennas ... especially four-foot high pvc platforms with hundreds of feet of wire (or more?), that's still an [Unlimited] "Ultralight" but a G6 unaided [stock OEM antenna] pulling-in a 1500-2000 mile away AM station still doesn't qualify as a [Barefoot] Ultralight seems strange.

I don't want to cause a long or even a short debate (especially an argument!).  It's more a respectful observation/opinion I suppose.  I very much enjoy the daily emails, I learn a lot from the group (that I must move to the Bay of Fundy on the East Coast to get the best DX) and I marvel at what everyone has accomplished - even the four-foot high monster contraptions via the youtube vids!  But I can still enjoy my G6 Aviator, Tecsun PL-390, and my other three pocket/compact portables and I suggest Sarmento and others enjoy their Tecsuns and other small radios and log their accomplishments with or without Ultralight "validation".

Respectfully,

Troy
 


Re: Tecsun PL880

Guy Atkins
 

Hi Sarmento,

The PL-880 is a fine portable receiver, but does not meet the agreed-upon definition for an Ultralight radio. Two matters in particular where it "transgresses" are the overall cubic inches of the case dimensions, and the extra modes like SSB and CW.

You can read about the Ultralight requirements in the "ULR Definitions" PDF that is found in the "General Information" folder in the Files section of this Yahoo Group.

Best DX,

Guy Atkins
Puyallup, WA USA


Tecsun PL880

sarmento2k
 

Gentlemen, should we consider this model as ultralight DX ?

Regards

Sarmento Campos


Re: Dead SW band on Tecsun PL-310ET

Rik
 

My PL-310ET stopped tuning any other way than by ETM, but 'fixed' it self. I have had occasional  mystery digital control problems on my various TECSUN radios for years. Try pulling the batteries and not using it for a week or so. - FARMERIK


Dead SW band on Tecsun PL-310ET

gotoliv@...
 

On Friday, May 8, 2015 the SW band stopped working on PL-310ET radio. Does anyone know how to reboot or reset the radio to factory default settings. It does not have the hole for the manual reboot. Is there a buttons combination for reset? Does anyone have this issue before with the Tecsun radio? Some details here. When I scan for SW bands I hear only noise. Auto-scan does not find any stations. FM and AM bands work fine.



Active oscillator signal source

Phillips
 

A schematic of a SMD-based weak signal source has been uploaded to Files, antennas and equipment,  smd weak signal source.pdf.
 
They don't come much simpler than this.  And it runs off a nine volt battery.
 
This circuit is based around a TTL compatible SMD 1MHz active oscillator available online for about $6 for a lot of five.  Being TTL compatible, the device is designed to run on five volts.  There are similar oscillators running at different frequencies but this is the only one that I have come across in the MW band.
 
The active oscillator is wired as the emitter element of a general purpose transistor configured as an emitter follower.   The active oscillator is crystal controlled and puts out an accurate, stable 1MHz.  This frequency can not be varied.  1MHz is suitable for radios operating with 9KHz or 10KHz spacing because there is a spot at 999KHz for the 9KHz spaced radios and at 1MHz for 10KHz spacing.
 
There should be roughly five volts at the emitter of the transistor with no modulation present.  This voltage is dependent on the gain of the transistor and the base bias resistor.  To lower the voltage, increase the size of the resistor and V-V..... 4.5 to 5.5 volts should be OK.  Too much voltage could overheat the active oscillator.  The prototype ran at 6 Volts with no sign of overheating.
 
Modulation is done by modulating the transistor emitter current thereby changing the chip supply voltage.  The modulating voltage needs to be in the range of 0.5 to 3 volts P-P.  The emitter follower input impedance is quite high and shouldn't load up most modulation sources.
 
The output is a square wave and so consists of the fundamental frequency at 1MHz and equal-amplitude odd harmonics.  This produces signals at 1, 3, 5, 7, 9, 11+ MHz.    A simple filter (not shown) of a small inductor in series and a small capacitor to ground before the antenna will reduce much of the harmonics and establish some semblance of a sine wave but at the expense of some signal loss.  
 
The circuit can be used as an accurate 1MHz (and odd harmonics) frequency reference or as a weak signal source for antenna testing.
 
 

 
Ray
35S138E
 

 
 
 


May the lord shine a light on your life

Paul Blundell
 

And as god is my witness I shall obey his word for he is the way, the truth and the light. All who come to know his powerful name will welcomed in to his kingdom.


Shortwave News Show No.27 Released!

Hobart Radio International <hriradio@...>
 


Welcome to the DX Extra! It’s a show about the shortwave hobby featuring news, reviews, pirate radio and anything in-between. 
We are the extra thing you need to digest your shortwave news.

In show 27 this fortnight:
- Greece's ERT state broadcaster to reopen
- Norway FM domestic radio update
- Additional BBC transmissions to Nepal
- Nepalese Amateur radio gear stuck in customs
- Latest clandestine shortwave frequencies
- Pirate Radio News, logs and recordings
- Audio Archive: Radio For Peace international

#------------------------------------------------------------------#
To read the transcript, LISTEN OR DOWNLOAD the podcast simply head to:

DOWNLOAD directly at: Archive.org
Read the transcript at: Google Docs
Join us on Facebook at: facebook.com/dxextra Over 600 likes!
Subscribe to the RSS feed 
#------------------------------------------------------------------#

Hear us on the radio:
FM: World FM New Zealand 88.2FM Thursdays at 3h30UTC
SW: WRMI Radio Miami International 9955kHz Sundays 3h30-4h00UTC
Channel 292 6070kHz Saturdays at 15h00UTC NEW!
Also via Premier Radio, Cupid Radio, Radio Spaceshuttle World Service and Focus International over the weekends.

--
Kind regards,

hriradio.org
Hobart Radio International features DX Extra and The Buzz shows!


Re: SW DX with the PL606

wpe6bvt@...
 

a couple of clarifications to the above logs:

13800 R. Puntland One 1327-1358+ 6 May. Thanks to additional info from Dave V., Bruce Churchill, Ron Howard, i heard Puntland's 3-language ID loop @ 1345 & 1356..maybe it'll be a new NASWA country, maybe not--it's in the ULR logbook, regardless--hams say "WFWL"*, so perhaps SWLs can use "LFWL"* in such cases.

17765 WHRI..is ex-17610 & sked Sun-only 15-1530 from Cypress Creek--tnx Ivo Ivanov's info in DXLD-15-17.

*"work first--worry later"/"log first--worry later"

good listening to all..

Dan
WB6FJD


Re: Steve Ratzlaff Varactor tuner for high inductance loops

Phillips
 

I get mine off eBay.  I must be getting the fake ones because they are pretty thin.  Seem to work OK though.
 
 
Ray


 
COLEMAK
The keyboard layout for rational thinkers
Available for Windows, Mac, Linux & Android

 

To: ultralightdx@...
From: ultralightdx@...
Date: Tue, 5 May 2015 13:30:04 -0700
Subject: Re: [ultralightdx] Re: Steve Ratzlaff Varactor tuner for high inductance loops

 
RE: <<  Hi Joe,
I bought 50 from eBay at 26 cents each. I can let you have up to 10 for 26 cents each plus shipping. Send me private email if you want some.
Steve  >>

Thank you for the kind offer, Steve.

I looked through the Group area and my eMail as well, no email or active link for you seen...Skype for example shows 9 Steve Ratzlaff...
 
If you would be so kind as to drop me an email, and "quote me" for 10 of genuine 1SV149 (Toshiba insists that the thin ones are "fake" and thicker ones are "genuine") + shipping and how to pay (I can do PayPal, VISA Debit/Credit), I would be happily to relieve you of ten.

I don't mind leaving my eMail and Skype, and I will send my voice phone # to you if you like, in the reply email.

Thank you again.

Joe Rotello / Knoxville, TN / USA
eMail: joerotello at windowgroup dot com
Skype: joerotello


Re: Steve Ratzlaff Varactor tuner for high inductance loops

josephrot
 

RE: <<  Hi Joe,
I bought 50 from eBay at 26 cents each. I can let you have up to 10 for 26 cents each plus shipping. Send me private email if you want some.
Steve  >>

Thank you for the kind offer, Steve.

I looked through the Group area and my eMail as well, no email or active link for you seen...Skype for example shows 9 Steve Ratzlaff...
 
If you would be so kind as to drop me an email, and "quote me" for 10 of genuine 1SV149 (Toshiba insists that the thin ones are "fake" and thicker ones are "genuine") + shipping and how to pay (I can do PayPal, VISA Debit/Credit), I would be happily to relieve you of ten.

I don't mind leaving my eMail and Skype, and I will send my voice phone # to you if you like, in the reply email.

Thank you again.

Joe Rotello / Knoxville, TN / USA
eMail: joerotello at windowgroup dot com
Skype: joerotello


Re: Varactor tuner for high inductance loops

Steve Ratzlaff
 

Hi Joe,
I bought 50 from eBay at 26 cents each. I can let you have up to 10 for 26 cents each plus shipping. Send me private email if you want some.
Steve

On 5/5/2015 10:10 AM, joerotello@... [ultralightdx] wrote:
 

Ray...
 
RE: Obtaining 1SV149's...
 
Been seeing them on eBay and a few other sources, but all seem to be sourced from the Pacific Rim or even Greece...
 
Any reasonable-priced U.S. / Canada sources by chance ?

Will likely locate some via searching, or check Mouser or DigiKey sites, but never hurts to ask another user.
 
Joe

Joe Rotello / Knoxville, TN / USA




Re: Varactor tuner for high inductance loops

josephrot
 

Ray...
 
RE: Obtaining 1SV149's...
 
Been seeing them on eBay and a few other sources, but all seem to be sourced from the Pacific Rim or even Greece...
 
Any reasonable-priced U.S. / Canada sources by chance ?

Will likely locate some via searching, or check Mouser or DigiKey sites, but never hurts to ask another user.
 
Joe

Joe Rotello / Knoxville, TN / USA


DX conventions this year

Phil Bytheway <phil_tekno@...>
 

The idea of having West and East conventions is new this year, so please bear with us. We are hoping this will result in more folks enjoying the fellowship and events.

All DXers are invited to attend either or both conventions. Tours, talks and food are planned at each site.

The first is in Fort Wayne IN on July 10-12 2015 and is hosted by Scott Fybush. Contact him at scott@....

The second is in Torrance CA on Sept 10-Sat Sept 12 2015 and is hosted by Mike Sanburn. Contact him at mikesanburn@....

The hosts really need to know who is planning to attend, even if tentative, so they can plan the events.

So, please let them know soon.

Thanks... Phil Bytheway

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