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   Home   Help Search  
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 41 
 on: Today at 03:08:39 PM 
Started by N1AUP - Last post by KE0ZU
you might look at "Surplus Sales of Nebraska", I think its called. I bought several pounds of Kester for not much money.  I believe the low price is because it's the small diameter material.   So every couple weeks or so I make up a twenty foot or so hank of twisted 4 strand solder, using the battery powered drill.   A 5 minute job. 

 42 
 on: Today at 02:59:16 PM 
Started by N1AUP - Last post by G3RZP
I've done well at the Dayton Hamvention flea market......

73

Peter G3RZP

 43 
 on: Today at 02:58:08 PM 
Started by KJ6DRG - Last post by G3RZP
The dishes from the last wash?

 44 
 on: Today at 02:57:52 PM 
Started by KC2NLT - Last post by KE0ZU
Using the 8555 plug-in, the HP141's basic operating range is 10MC to 18 GC.   

Though quite old, you can't get more cluck for the buck.

Ancient? Yes! Capable? Absolutely!


 45 
 on: Today at 02:56:12 PM 
Started by N6QWP - Last post by G3RZP
Carl,

Do we know if the current manufacture Chinese 811A have the zirconium  plating? Cynical as I am, I wouldn't be surprised to find the answer is 'No'.....

Peter G3RZP

 46 
 on: Today at 02:54:37 PM 
Started by N1AUP - Last post by N3DT
Ice storms aren't usually that bad around here, except on the road. But recently we've been getting wind storms, like the Derecho (sp?) that came through here from Chicago a couple years ago and that brought some trees down. Then there was Sandy which put an 80' oak tree right across the roof punching a hole in it. I spent the whole night trying to mitigate the water coming in. Then this spring we had some wind storm that seemed like a tornado about 1am and it was raining like crazy, black as pitch and the power went off, heard things crashing around the yard, ran around the house looking for branches sticking through the roof, another 80' oak down in the front yard luckily not hitting much and a couple poplar trees on the edge of the woods came down with a crash. I couldn't tell what happened until the sun came up next morning. We were without power for a couple days. Generator runs everything here except the A/C. WX is getting crazy around here in the foothills of the Blue Ridge.

But the wind does wind up the ropes if they're not kept with some tension and separated. I've only had one antenna come down and that was because the tree (dead) came down. But the ropes can get tangled like crazy.

 47 
 on: Today at 02:43:39 PM 
Started by N8FVJ - Last post by ZENKI
Kenwood should release updated versions of the TS850S and TS870S. Deliver these radios with 200 watts and a remote panel head like the TS480. Ham radio remote is going to be a dominant mode in the future.

The TS870S released as a pure direct sampling 200 watt radio which would be a hit. The amazing low IMD receiver performance made the  TS870S one of the great  receivers in ham radio. The TS870S had a filthy transmitter and when modes like ESSB was used caused excessive levels of splatter. It was a filthy transmitter radio.

Frankly i dont see how any manufacture could these days release a radio without a bandscope. However if Kenwood wanted to do it they could offer a bandscope accesory that is the same size as the radio with at least a 10 inch TFT screen. This accessory could have dual speakers, wattmeter, swr meter, transmit monitor all in the one box.  Something like the LP700 from N8LP. This acessory pan-adapter/monitor would work with all their radios. Much like the SM230 worked with most of Kenwoods radios.

Most importantly of all Kenwood should abandoned making 12 volt radios and build in a High voltage switch mode power supply that has something like a decent 12 volt 10 amp output for accessories. These days its easily done. There is no reason why radios used at home need to be run off 12 volts. They could even offer a DC/AC module that allows you to power the AC radio off batteries.

A quick fix radio for Kenwood would be the TS590SG without the hair brain multiple conversion architecture.  Make it 200 watts with a built in bandscope, power supply  and a second receiver and you have a K3 Killer.

I doubt that Kenwood will invest in legacy radio architecture today. Kenwood have enough firmware experts and engineers to turn out direct sampling SDR radios faster than any manufacture. They have the expertise. The TS870S was many years ahead in thinking than most ham companies. They still have this vision and expertise.

 48 
 on: Today at 02:31:29 PM 
Started by VK3BL - Last post by ZENKI
The main issue I have with the latest Icom mobile radios is that their transmitters sound like a Dr Who Dalek. This digital sound can be annoying to listen  too.

 49 
 on: Today at 02:28:40 PM 
Started by N8FVJ - Last post by ZENKI
What are you supposed to be "hearing" that receiver performance numbers cant measure?

  This is spurious nonsense spread by hams who dont want to accept the fact that radio engineering is science and every aspect  of this science can be measured.  Over the years I have listened to this so called "on the air" or "ham urban myths" about this radio having mystical performance in one or 2 areas of performance. In all cases when these radio were put under test they were horrible and miserable performing radios.

The only aspect of performance that cant exactly be measured is the performance of the  noise blanker or noise reduction whose performance  varies  because of the huge variability  in noise sources. But even noise blankers  and noise reduction performance can be quantified if someone took the time.

I will leave the "golden ear" testing to the CB'ers  who dont measure one  performance aspect of their radios and change them like stocks just because another cb'er tells them subjectively that its a better radio. This is not where we want ham radio as hobby to go when we practice ignorance, voodoo and radio folklore.

Well if you can "quantify" or tell me what a decent lab cant measure that your ears can I would be willing to give your  golden ear theory a try  and compare some radios.





Just remember that the "sherwood list" that many suggest as the gospel on rig choice is made in controlled lab conditions and not in real world and nor does it begin to rate or quantify how it sounds, easy of use or ergonomics...
[/quote]

I agree with your statement- one has to hear the radio performance, numbers are not everything. However, the TS-590SG is a brilliant design. The DNR is great in the TS-590SG. I bought a Yaesu FT-991A for VHF/UHF long haul SSB use. It replaced my FT-847. The FT-991A DNR is interesting removing almost all noise. But, it is too strong even on lowest sitting number 1. It will not resolve weak signals like the TS-590SG DNR even if it has a little more background noise.
[/quote]

 50 
 on: Today at 02:23:27 PM 
Started by N1AUP - Last post by N1AUP
Anyone have a good source for 60 / 4 rosen core solder?  Should I just buy it on Ebay?

Thanks

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