« previous next »
Pages: [1]   Go Down

Author Topic: Adapter for RF generator to coaxial  (Read 1384 times)

0 Members and 1 Guest are viewing this topic.

Offline stafilTopic starter

  • Regular Contributor
  • *
  • Posts: 207
  • Country: us
Adapter for RF generator to coaxial
« on: June 03, 2020, 09:59:08 pm »
Logged
 

Offline Ground_Loop

  • Frequent Contributor
  • **
  • Posts: 681
  • Country: us
Re: Adapter for RF generator to coaxial
« Reply #1 on: June 03, 2020, 10:02:27 pm »
One of these.
SMA to BNC jumper.
Logged
There's no point getting old if you don't have stories.
 
The following users thanked this post: stafil

Offline graze

  • Newbie
  • Posts: 1
  • Country: gb
Re: Adapter for RF generator to coaxial
« Reply #2 on: June 04, 2020, 11:52:22 am »
Logged
 
The following users thanked this post: stafil

Offline Mechatrommer

  • Super Contributor
  • ***
  • Posts: 11714
  • Country: my
  • reassessing directives...
Re: Adapter for RF generator to coaxial
« Reply #3 on: June 04, 2020, 12:01:45 pm »
Logged
Nature: Evolution and the Illusion of Randomness (Stephen L. Talbott): Its now indisputable that... organisms “expertise” contextualizes its genome, and its nonsense to say that these powers are under the control of the genome being contextualized - Barbara McClintock
 
The following users thanked this post: stafil

Offline KMoffett

  • Regular Contributor
  • *
  • Posts: 96
  • Country: us
Re: Adapter for RF generator to coaxial
« Reply #4 on: June 04, 2020, 05:37:21 pm »
If it's just function generator to scope, ground_loop showed the correct adapter.
Logged
 
The following users thanked this post: stafil

Online WattsThat

  • Frequent Contributor
  • **
  • Posts: 818
  • Country: us
Re: Adapter for RF generator to coaxial
« Reply #5 on: June 04, 2020, 05:45:27 pm »
Don’t ignore the generators 50 ohm output impedance. A typical scope is 1 Meg so the output amplitude will likely be wrong when loaded at that 1 meg rather than the correct 50 ohm load.
Logged
 
The following users thanked this post: stafil

Offline tkamiya

  • Super Contributor
  • ***
  • Posts: 2178
  • Country: us
Re: Adapter for RF generator to coaxial
« Reply #6 on: June 07, 2020, 03:10:42 am »
That is an SMA connector on the board.  Keep in mind, SMA connectors are NOT designed for frequent connect/disconnect cycle, and not mechanically very strong.

What I would recommend is to buy a short cable SMA male to BNC female.  Make sure there are no stress on SMA side. 
Logged
 
The following users thanked this post: stafil

Offline stafilTopic starter

  • Regular Contributor
  • *
  • Posts: 207
  • Country: us
Re: Adapter for RF generator to coaxial
« Reply #7 on: June 07, 2020, 04:11:48 am »
Quote from: WattsThat on June 04, 2020, 05:45:27 pm
Don’t ignore the generators 50 ohm output impedance. A typical scope is 1 Meg so the output amplitude will likely be wrong when loaded at that 1 meg rather than the correct 50 ohm load.

Thanks, I got a BNC-T adapter and 50ohm BNC terminator. I should be ok, right?
Logged
 

Offline stafilTopic starter

  • Regular Contributor
  • *
  • Posts: 207
  • Country: us
Re: Adapter for RF generator to coaxial
« Reply #8 on: June 07, 2020, 04:13:39 am »
Quote from: tkamiya on June 07, 2020, 03:10:42 am
That is an SMA connector on the board.  Keep in mind, SMA connectors are NOT designed for frequent connect/disconnect cycle, and not mechanically very strong.

What I would recommend is to buy a short cable SMA male to BNC female.  Make sure there are no stress on SMA side.

It's just a cheap $20 RF generator I got from eBay, thanks I'll keep it mind. Wouldn't want to break it before I even try it once.
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee