On Sat, 1 Oct 2022 02:04:44 -0700 (PDT), whit3rd <whit3rd@gmail.com>
wrote:
>On Friday, September 30, 2022 at 10:26:23 AM UTC-7, John Larkin wrote:
>> On Fri, 30 Sep 2022 16:42:49 GMT, Jan Panteltje
>> <pNaonSt...@yahoo.com> wrote:
>>
>> >On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
>> ><jla...@highlandSNIPMEtechnology.com> wrote in
>> ><ihvdjh50jhq407o7t...@4ax.com>:
>> >
>> >>On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
>> >><pNaonSt...@yahoo.com> wrote:
>
>> >>>What's wrong with just a drop of solder?
>> >>>Or are you changing potcores all the time?
>
>> >>Stripping and soldering coax is a lot of labor.
>
>> >Yes, is that not more reliable? I mean
>> > connectors.. seen many problems with connectors
>> Works great. Electronics needs connectors.
>>
>> Cutting, stripping, soldering micro-coax is not easy or reliable.
>
>Didn't you say you were buying prebuilt connectorized cables?
DIGIKEY A36229-ND
$1.54 each.
Reply by John Larkin●October 1, 20222022-10-01
On Sat, 01 Oct 2022 06:23:52 GMT, Jan Panteltje
<pNaonStpealmtje@yahoo.com> wrote:
>On a sunny day (Fri, 30 Sep 2022 10:26:15 -0700) it happened John Larkin
><jlarkin@highlandSNIPMEtechnology.com> wrote in
><rh9ejh17a3o1t61a4hpbqgnbk8df8g1iuq@4ax.com>:
>
>>On Fri, 30 Sep 2022 16:42:49 GMT, Jan Panteltje
>><pNaonStpealmtje@yahoo.com> wrote:
>>
>>>On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
>>><jlarkin@highlandSNIPMEtechnology.com> wrote in
>>><ihvdjh50jhq407o7ti2b3csitdoo7ntc8k@4ax.com>:
>>>
>>>>On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
>>>><pNaonStpealmtje@yahoo.com> wrote:
>>>>
>>>>>>> https://www.dropbox.com/s/zpu6wpli7pvwuih/TX_1.jpg?raw=1
>>>>>
>>>>>What's wrong with just a drop of solder?
>>>>>Or are you changing potcores all the time?
>>>>
>>>>Stripping and soldering coax is a lot of labor.
>>>>
>>>>https://www.dropbox.com/s/oam60ys8n0pt8bo/T750_1.JPG?raw=1
>>>
>>>Yes, is that not more reliable? I mean
>>> connectors.. seen many problems with connectors
>>
>>Works great. Electronics needs connectors.
>
>
>>Cutting, stripping, soldering micro-coax is not easy or reliable.
>
>Well I never had a problem with RG178
>putting on connectors in the right way requires more effort.
>Do you do this just for the looks of it?? ;-)
We just buy that cable assembly for $1.54. And pick-and-place the
connectors on the board. It's a cheap and easy and reliable.
But it does look cool, got to admit.
Given the need to make a custom transmission-line transformer, this is
a great way to do it. This is the isolated high-voltage output option
of a pulse/delay generator.
Reply by Jan Panteltje●October 1, 20222022-10-01
On a sunny day (Sat, 1 Oct 2022 02:04:44 -0700 (PDT)) it happened whit3rd
<whit3rd@gmail.com> wrote in
<07981aaf-05aa-4fd9-9b28-7036fbd2a8b7n@googlegroups.com>:
>On Friday, September 30, 2022 at 10:26:23 AM UTC-7, John Larkin wrote:
>> On Fri, 30 Sep 2022 16:42:49 GMT, Jan Panteltje
>> <pNaonSt...@yahoo.com> wrote:
>>
>> >On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
>> ><jla...@highlandSNIPMEtechnology.com> wrote in
>> ><ihvdjh50jhq407o7t...@4ax.com>:
>> >
>> >>On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
>> >><pNaonSt...@yahoo.com> wrote:
>
>> >>>What's wrong with just a drop of solder?
>> >>>Or are you changing potcores all the time?
>
>> >>Stripping and soldering coax is a lot of labor.
>
>> >Yes, is that not more reliable? I mean
>> > connectors.. seen many problems with connectors
>> Works great. Electronics needs connectors.
>>
>> Cutting, stripping, soldering micro-coax is not easy or reliable.
>
>Didn't you say you were buying prebuilt connectorized cables? Crimping
>is also not easy, but with the right (expensive) equipment, it's reliable.
Yes I have a lot of those with SMA connectors to connect things,
but only one length, that length would have to be correct for his coils.
He could have them made to length in China for large quantities perhaps.
>Coaxial cable doesn't reflow-solder nicely, even if you wanted to hand-solder,
Sometimes higher temperature helps 370 degrees C should work.
>a bit of a preformed collar or wrap for the braid would be prudent. I like
>to whip ends with a copper strand, like it was a rope, then tin that.
>Works on stainless steel brake cables for the bike, too, with silver solder.
Nice, have not tried that.
Here an example with RG178:
http://panteltje.com/pub/soldering_RG178_IXIMG_0871.JPG
I use that coax for about everything RF, that one makes a tuned antenna from a piece of 300 twin wire, impedance matched.
https://m0ukd.com/calculators/slim-jim-and-j-pole-calculator/
But even my sat dish with rotor uses that cable, it is so thin you do not have to drill holes in the outside wall
just goes through the window. that you can then close without problems...
PTFE, bit harder to melt the insulation, melting point 327 degrees C, makes soldering easier.
Reply by whit3rd●October 1, 20222022-10-01
On Friday, September 30, 2022 at 10:26:23 AM UTC-7, John Larkin wrote:
> On Fri, 30 Sep 2022 16:42:49 GMT, Jan Panteltje
> <pNaonSt...@yahoo.com> wrote:
>
> >On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
> ><jla...@highlandSNIPMEtechnology.com> wrote in
> ><ihvdjh50jhq407o7t...@4ax.com>:
> >
> >>On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
> >><pNaonSt...@yahoo.com> wrote:
> >>>What's wrong with just a drop of solder?
> >>>Or are you changing potcores all the time?
> >>Stripping and soldering coax is a lot of labor.
> >Yes, is that not more reliable? I mean
> > connectors.. seen many problems with connectors
> Works great. Electronics needs connectors.
>
> Cutting, stripping, soldering micro-coax is not easy or reliable.
Didn't you say you were buying prebuilt connectorized cables? Crimping
is also not easy, but with the right (expensive) equipment, it's reliable.
Coaxial cable doesn't reflow-solder nicely, even if you wanted to hand-solder,
a bit of a preformed collar or wrap for the braid would be prudent. I like
to whip ends with a copper strand, like it was a rope, then tin that.
Works on stainless steel brake cables for the bike, too, with silver solder.
Reply by Phil Hobbs●October 1, 20222022-10-01
Jan Panteltje wrote:
> On a sunny day (Fri, 30 Sep 2022 10:26:15 -0700) it happened John Larkin
> <jlarkin@highlandSNIPMEtechnology.com> wrote in
> <rh9ejh17a3o1t61a4hpbqgnbk8df8g1iuq@4ax.com>:
>
>> On Fri, 30 Sep 2022 16:42:49 GMT, Jan Panteltje
>> <pNaonStpealmtje@yahoo.com> wrote:
>>
>>> On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
>>> <jlarkin@highlandSNIPMEtechnology.com> wrote in
>>> <ihvdjh50jhq407o7ti2b3csitdoo7ntc8k@4ax.com>:
>>>
>>>> On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
>>>> <pNaonStpealmtje@yahoo.com> wrote:
>>>>
>>>>>>> https://www.dropbox.com/s/zpu6wpli7pvwuih/TX_1.jpg?raw=1
>>>>>
>>>>> What's wrong with just a drop of solder?
>>>>> Or are you changing potcores all the time?
>>>>
>>>> Stripping and soldering coax is a lot of labor.
>>>>
>>>> https://www.dropbox.com/s/oam60ys8n0pt8bo/T750_1.JPG?raw=1
>>>
>>> Yes, is that not more reliable? I mean
>>> connectors.. seen many problems with connectors
>>
>> Works great. Electronics needs connectors.
>
>
>> Cutting, stripping, soldering micro-coax is not easy or reliable.
>
> Well I never had a problem with RG178
> putting on connectors in the right way requires more effort.
> Do you do this just for the looks of it?? ;-)
>
U.FL jumpers are very cheap and work very well. We use quite a few.
I wouldn't want to try making one by hand!
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510
http://electrooptical.nethttp://hobbs-eo.com
Reply by Jan Panteltje●October 1, 20222022-10-01
On a sunny day (Fri, 30 Sep 2022 10:26:15 -0700) it happened John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote in
<rh9ejh17a3o1t61a4hpbqgnbk8df8g1iuq@4ax.com>:
>On Fri, 30 Sep 2022 16:42:49 GMT, Jan Panteltje
><pNaonStpealmtje@yahoo.com> wrote:
>
>>On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
>><jlarkin@highlandSNIPMEtechnology.com> wrote in
>><ihvdjh50jhq407o7ti2b3csitdoo7ntc8k@4ax.com>:
>>
>>>On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
>>><pNaonStpealmtje@yahoo.com> wrote:
>>>
>>>>>> https://www.dropbox.com/s/zpu6wpli7pvwuih/TX_1.jpg?raw=1
>>>>
>>>>What's wrong with just a drop of solder?
>>>>Or are you changing potcores all the time?
>>>
>>>Stripping and soldering coax is a lot of labor.
>>>
>>>https://www.dropbox.com/s/oam60ys8n0pt8bo/T750_1.JPG?raw=1
>>
>>Yes, is that not more reliable? I mean
>> connectors.. seen many problems with connectors
>
>Works great. Electronics needs connectors.
>Cutting, stripping, soldering micro-coax is not easy or reliable.
Well I never had a problem with RG178
putting on connectors in the right way requires more effort.
Do you do this just for the looks of it?? ;-)
Reply by John Larkin●September 30, 20222022-09-30
On Fri, 30 Sep 2022 16:42:49 GMT, Jan Panteltje
<pNaonStpealmtje@yahoo.com> wrote:
>On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
><jlarkin@highlandSNIPMEtechnology.com> wrote in
><ihvdjh50jhq407o7ti2b3csitdoo7ntc8k@4ax.com>:
>
>>On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
>><pNaonStpealmtje@yahoo.com> wrote:
>>
>>>>> https://www.dropbox.com/s/zpu6wpli7pvwuih/TX_1.jpg?raw=1
>>>
>>>What's wrong with just a drop of solder?
>>>Or are you changing potcores all the time?
>>
>>Stripping and soldering coax is a lot of labor.
>>
>>https://www.dropbox.com/s/oam60ys8n0pt8bo/T750_1.JPG?raw=1
>
>Yes, is that not more reliable? I mean
> connectors.. seen many problems with connectors
Works great. Electronics needs connectors.
Cutting, stripping, soldering micro-coax is not easy or reliable.
Reply by Jan Panteltje●September 30, 20222022-09-30
On a sunny day (Fri, 30 Sep 2022 07:41:26 -0700) it happened John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote in
<ihvdjh50jhq407o7ti2b3csitdoo7ntc8k@4ax.com>:
Yes, is that not more reliable? I mean
connectors.. seen many problems with connectors
I have some equipment with these models but did not feel reliable.
Have some problem here with an USB RTL-SDR stick also the RF connector
should solder it really.
Reply by Anthony William Sloman●September 30, 20222022-09-30
On Saturday, October 1, 2022 at 12:41:37 AM UTC+10, John Larkin wrote:
> On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
> <pNaonSt...@yahoo.com> wrote:
>
> >>> https://www.dropbox.com/s/zpu6wpli7pvwuih/TX_1.jpg?raw=1
> >
> >What's wrong with just a drop of solder?
> >Or are you changing potcores all the time?
>
> Stripping and soldering coax is a lot of labor.
You don't have to strip semi-rigid coax, and there are crimp connectors for it, Of course it is more expensive than regular coax, but it is a lot more uniform.
The waveform looks a bit grassy. Semi-rigid coax might run a lawn-mower over it, if you did it right. Our narrowest pulse was half a nanosecond wide, back in the 1980's and only a few volts high .
--
Bill Sloman, Sydney
Reply by John Larkin●September 30, 20222022-09-30
On Fri, 30 Sep 2022 13:51:37 GMT, Jan Panteltje
<pNaonStpealmtje@yahoo.com> wrote: