[RFI] Choke questions

Gedas w8bya at mchsi.com
Wed Jan 22 12:10:17 EST 2020


Keep in mind that the vast majority of even high end cables and 
connectors are now mostly made in China. Some in the Philippines, 
Malaysia, etc.

For example the last batch of brand new Amphenol N-conn crimps have made 
in china stamped right on the Amphenol bag.

But if you are USA only then look for Harbour Industries.

Gedas, W8BYA EN70

Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 1/22/2020 11:19 AM, Dave Cole wrote:
> Thank Jim,
> I do care if it came from China, do you have a US based cable you know 
> of?  I want to build a few of Jim's chokes, so I want decent cable.  
> No ends needed.
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist
> ARRL Asst. Director, NW Division, Technical Resources
>
> On 1/22/20 7:31 AM, Gedas wrote:
>> What kind of length(s) are you looking for and do you want connectors 
>> on the end?
>>
>> Many of the RG-400 coax are made in China, there are some US based 
>> companies like Harbour Industries etc that specialize in Teflon based 
>> coaxial cables but they are going to be more expensive then the asian 
>> made cables.
>>
>> If you do not care if it came from china have a look at:
>>
>> https://www.ebay.com/itm/RG400-100FT-50-ohm-Double-Shielded-Coaxial-cable-with-Tan-FEP-Jacket/222770013314?hash=item33de20a482:g:Y-QAAOSw~4hbw63R 
>>
>>
>> Gedas, W8BYA EN70
>>
>> Gallery at http://w8bya.com
>> Light travels faster than sound....
>> This is why some people appear bright until you hear them speak.
>>
>> On 1/22/2020 10:09 AM, Dave Cole wrote:
>>> Anyone know where to get RG-400 for a decent price?
>>>
>>> 73, and thanks,
>>> Dave (NK7Z)
>>> https://www.nk7z.net
>>> ARRL Volunteer Examiner
>>> ARRL Technical Specialist
>>> ARRL Asst. Director, NW Division, Technical Resources
>>>
>>> On 1/22/20 6:59 AM, Gedas wrote:
>>>> Another Teflon based coax similar to 50-ohm RG-142 and 75-ohm 
>>>> RG-179 is 75-ohm RG-187.
>>>>
>>>> Gedas, W8BYA EN70
>>>>
>>>> Gallery at http://w8bya.com
>>>> Light travels faster than sound....
>>>> This is why some people appear bright until you hear them speak.
>>>>
>>>> On 1/22/2020 1:35 AM, Jim Brown wrote:
>>>>> On 1/21/2020 8:02 PM, John K9UWA wrote:
>>>>>> Is there a 75 ohm equivalent to RG400 coax?
>>>>>
>>>>> Not that I know of, although are there's at least one sort of like 
>>>>> RG142. KZ1W sent me several miniature coaxes to evaluate for 
>>>>> chokes for TX 4-squares, the most useful of which seems to be 
>>>>> RG179. It's addressed in the Cookbook.
>>>>>
>>>>> 73, Jim K9YC
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