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Counterpoise question
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.
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Re: "Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video
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)
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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.
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 --
Paul
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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
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"Paul Walker Variant" 5 inch (12.7cm) FSL Demo Video
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)
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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
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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  
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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
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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 ?
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Re: My Super-Ultralight AM DX'ing Quest
Peter 1956
On Mon, Aug 23, 2021 at 11:33 PM, Max Italy wrote:
K605I 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.
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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 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,
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Re: My Super-Ultralight AM DX'ing Quest
Peter Jones
The BC-R60 is branded as Indin
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Re: My Super-Ultralight AM DX'ing Quest
Peter Jones
The K605s I have seen are branded
Semoic.
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Re: My Super-Ultralight AM DX'ing Quest
Johnny
Hi all,
Thanks for your comments AND your interest on this topic! Johnny :)
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Re: My Super-Ultralight AM DX'ing Quest
Johnny
Hi Max,
Who makes the K605 please? And the BC-R60? Those sound interesting! Johnny
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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
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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
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Re: My Super-Ultralight AM DX'ing Quest
Peter 1956
The prices are ridiculous for a new SRF-59 on ebay etc.
Peter
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Re: My Super-Ultralight AM DX'ing Quest
Peter 1956
Yes
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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. --
Paul
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