Date   

Counterpoise question

Jock Elliott
 

A technician at CCrane suggested that, if I wanted to squeeze more performance out of my Skywave SSB on the HF bands, I might consider attaching a counterpoise to the mini (or micro, not sure) USB port on the side of the radio. Buy a mini-USB cable and pull the center pin out of it, he said, and you are now grounded to the chassis of the radio.

Question: how long should the countpoise be? As long as the whip antenna? As long as any antenna attached to the whip?

Apologies in advance: my knowledge of antenna theory is so limited that "zero knowledge" would be an upgrade for me.


Re: "Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video

Gary DeBock
 

On Tue, Aug 24, 2021 at 09:03 PM, Paul Blundell wrote:
That is an awesome looking aerial and a great video, I am sure Paul will make good use of it.
Thanks Paul,

Paul W. has earned his DXing status the tough way, fighting subfreezing cold in order to explore breakthrough Arctic propagation. He deserves all the help he can get, and he should run wild again this winter.

Gary DeBock (in Puyallup, WA, USA)


Re: "Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video

Paul Blundell
 

That is an awesome looking aerial and a great video, I am sure Paul will make good use of it.


On Wed, Aug 25, 2021 at 10:58 AM Gary DeBock via groups.io <D1028Gary=aol.com@groups.io> wrote:
For those who need an extremely rugged FSL antenna that can survive the nastiest environments (subfreezing Alaska cold, windstorm-pounded ocean side cliffs or the Kabul, Afghanistan airport) an extremely rugged FSL antenna version has been designed. Every ferrite rod is superglued to the rubber plumbing coupler, which is then superglued to the PVC frame with a specially designed rubber locking tab. The entire antenna was designed to be "bulletproof," and is demonstrated in the video linked below. Two of these models are on their way to Paul, who should have some serious fun with them this winter  (10) "Paul Walker Variant" 5 inch (12.7cm) FSL Antenna - YouTube

73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)



--
Paul


Logs for 8.24.2021

Carl DeWhitt
 

KFUO 850 Clayton,MO 2100-2101 EDT.     Good news on KFUO and worldwide on  kfuo.org.Fair.C.Crane Skywave SSB barefoot.                                                              WVLK 590 Lexington,KY 2205-2208 EDT.local news and weather." 97.3 WVLK" ID.Poor-fair.C.Crane Skywave SSB barefoot. Carl DeWhitt,Knoxville,TN


"Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video

Gary DeBock
 

For those who need an extremely rugged FSL antenna that can survive the nastiest environments (subfreezing Alaska cold, windstorm-pounded ocean side cliffs or the Kabul, Afghanistan airport) an extremely rugged FSL antenna version has been designed. Every ferrite rod is superglued to the rubber plumbing coupler, which is then superglued to the PVC frame with a specially designed rubber locking tab. The entire antenna was designed to be "bulletproof," and is demonstrated in the video linked below. Two of these models are on their way to Paul, who should have some serious fun with them this winter  (10) "Paul Walker Variant" 5 inch (12.7cm) FSL Antenna - YouTube

73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)


Re: My Super-Ultralight AM DX'ing Quest

 

I just had a look and agree, who would pay what some sellers are asking?

 
 
Sent: Monday, August 23, 2021 at 7:20 PM
From: "Peter 1956" <pe1etr@...>
To: main@UltralightDX.groups.io
Subject: Re: [UltralightDX] My Super-Ultralight AM DX'ing Quest
The prices are ridiculous for a new SRF-59 on ebay etc.

Peter


Re: Extended DX Project - 23/08/2021 - Monash Reserve

 

That looks like a really awesome spot. I saw on your website that you have been here a few times. I love the photos.

 
 
Sent: Monday, August 23, 2021 at 1:14 PM
From: "Paul Blundell" <tanger32au@...>
To: main@UltralightDX.groups.io
Subject: [UltralightDX] Extended DX Project - 23/08/2021 - Monash Reserve
Time: 12:15pm
Radio: AR-1733 + 3" FSL
-------------------------
**MWDxerDB - Report**
Report Date: 08/23/2021
Report Time: 13:01:42
-------------------------
Freq / Name: 0531 - 3GG
Details: Warragul - Commercial - 5000w - 384km 
Notes: 23/08/2021 - ULDXIndex = 0.18432

Freq / Name: 0549 - 2CR
Details: Cumnock - National - 50000w - 954km 
Notes: 23/08/2021 - ULDXIndex = 0.020988 

Freq / Name: 0621 - 3RN
Details: Melbourne - National - 50000w - 459km 
Notes: 23/08/2021 - ULDXIndex = 0.02754

Freq / Name: 0693 - 3AW
Details: Melbourne - Commercial - 5000w - 458km
Notes: 23/08/2021 - ULDXIndex = 0.17404

Freq / Name: 0774 - 3LO
Details: Melbourne - National - 50000w - 459km 
Notes: 23/08/2021 - ULDXIndex = 0.02754

Freq / Name: 0828 - 3GI
Details: Sale - National - 10000w - 360km
Notes: 23/08/2021 - ULDXIndex = 0.0864 

Freq / Name: 0855 - 3CR
Details: Melbourne - Community - 3500w - 446km 
Notes: 23/08/2021 - ULDXIndex = 0.1784 

Freq / Name: 0891 - 5AN
Details: Adelaide - National - 50000w - 1030km 
Notes: 23/08/2021 - ULDXIndex = 0.0 - Unlogged 

Freq / Name: 1341 - HPON GEELONG
Details: Geelong - HPON - 5000w - 429km
Notes: 23/08/2021 - ULDXIndex = 0.20592

Freq / Name: 1422 - HPON MELBOURNE
Details: Melbourne - HPON - 5000w - 449km
Notes: 23/08/2021 - ULDXIndex = 0.21552
 
 
 


Re: AM DX'ing Quest

kevin asato
 

In the spirit of Ultralight Radios, NO. Passive techniques only. This is why you see/read use of external loop antennas of various types. However, you can on your own as there is no one to police how you actually receive. It's all on the honor system here. Select Upper or Lower SB (or just SSB) and tune around for the best signal for the frequency of interest. This would be similar to using an external variable oscillator or Q-multiplier in which you inject another signal in attempt to recover the original signal. By inject, it is sufficient enough to couple the output of the oscillator to the radio using a few turns of wire. Try 1 or 2 to start. YMMV.
73,
kevin
kc6pob

On Tue, Aug 24, 2021 at 1:43 PM Arthur Samel via groups.io <avram911=aol.com@groups.io> wrote:

can you use single side band on a radio to pull in weak stations ? and how do you go about it ?


Re: AM DX'ing Quest

Arthur Samel
 


can you use single side band on a radio to pull in weak stations ? and how do you go about it ?


Re: My Super-Ultralight AM DX'ing Quest

Peter 1956
 

On Mon, Aug 23, 2021 at 11:33 PM, Max Italy wrote:
K605
I hope you took note of the precautions Max? :)

Note:
1)Please avoid high press, strong collision, drop or water.
2)Don't place radio under sunshine, high temperature, high humidity area or store radio at environment of temperature < -5℃ or >50℃.
3)Don't clean case with chemical solvent to avoid damage of radio casing.
4)Don't disassemble the radio or change specification of inner part radio.


Re: My Super-Ultralight AM DX'ing Quest

Max Italy
 

Hi Johnny, the K605 i have is branded KDKA but can have other brand name or no brand at all

The BC-R60 is made from INDIN like Peter said. I mentioned one but there are many models all with the same circuit, like BC-R119, BC-R28, BC-R22, BC-R29; these were purchased recently and all use ic KT0936M.

I don't know the common BC-R21 because the one i have was purchased years ago and use TA7642

 

On Mon, Aug 23, 2021 at 08:47 PM, Johnny wrote:

Hi Max,

Who makes the K605 please?  And the BC-R60?


Re: My Super-Ultralight AM DX'ing Quest

Peter Jones
 

The BC-R60 is branded as Indin


Re: My Super-Ultralight AM DX'ing Quest

Peter Jones
 

The K605s I have seen are branded 

Semoic.


Re: My Super-Ultralight AM DX'ing Quest

Johnny
 

Hi all,

Thanks for your comments AND your interest on this topic!


Johnny  :)


Re: My Super-Ultralight AM DX'ing Quest

Johnny
 

Hi Max,

Who makes the K605 please?  And the BC-R60?

Those sound interesting!


Johnny


Used Portables for sale

Russ Edmunds
 

These two items are from the estate of noted MW DX'er Ben Dangerfield who passed this Spring. I am working on selling some of the items for his family. If interested, please contact me off list.

1.       CCrane Skywave   portable receiver. Good condition, although missing battery door.  Best offer. 

 

2.       DEGEN DE-1103 portable. In good condition.  Best offer


Thanks -



Russ Edmunds

WB2BJH

Blue Bell, PA

Grid FN20id


Re: My Super-Ultralight AM DX'ing Quest

Carl DeWhitt
 

That sounds fun to me.I have one of the Sony SRF 59's handy. I may get it out and see what it can do with it.If have 3 Sony SRFs , but only one handy as the other 2 are stored away. 73,Carl DeWhitt,Knoxville,TN


Re: My Super-Ultralight AM DX'ing Quest

Peter 1956
 

The prices are ridiculous for a new SRF-59 on ebay etc.

Peter


Re: My Super-Ultralight AM DX'ing Quest

Peter 1956
 

Yes


Re: My Super-Ultralight AM DX'ing Quest

Paul Blundell
 

I have seen and heard about this model, it looks like it works really well.
Are they something you can still purchase new?


On Mon, Aug 23, 2021 at 2:31 PM Peter 1956 <pe1etr@...> wrote:
The Sony SRF-59 and SRF-39 are the ultra ultralight kings.
Unfortunately I don't have my SRF-59 with me, but here are a couple of examples of it in action.
https://youtu.be/7CqcC2MmK3A
https://youtu.be/A1QiChxgS4s

Peter



--
Paul

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