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Author Topic: RF Switch  (Read 1165 times)

Andrew Herbein

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RF Switch
« on: February 04, 2020, 04:12:16 pm »

Can anyone recommend a good 2- or 3-way RF switch? I would like to use it to feed my spectrum analyzer from my receive rack.

Ideally, a 3-way would give me both diversity antennas and VHF for comms.

I would prefer a mechanical switch for simplicity.
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Henry Cohen

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Re: RF Switch
« Reply #1 on: February 04, 2020, 04:37:38 pm »

Can anyone recommend a good 2- or 3-way RF switch? I would like to use it to feed my spectrum analyzer from my receive rack.

Ideally, a 3-way would give me both diversity antennas and VHF for comms.

I would prefer a mechanical switch for simplicity.

https://www.alphadeltaradio.com/#
https://diamondantenna.net/Product_Catalog/coax_switch.html
https://www.mfjenterprises.com/Categories.php?sub=0&ref=21
https://www.minicircuits.com/WebStore/Switches.html
https://www.jfwindustries.com/product-category/rf-switches/

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Henry Cohen

CP Communications    www.cpcomms.com
Radio Active Designs   www.radioactiverf.com

Pete Erskine

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Re: RF Switch
« Reply #2 on: February 04, 2020, 06:57:10 pm »

Can anyone recommend a good 2- or 3-way RF switch? I would like to use it to feed my spectrum analyzer from my receive rack.

Ideally, a 3-way would give me both diversity antennas and VHF for comms.

I would prefer a mechanical switch for simplicity.

https://www.amazon.com/gp/product/B01N5XQTQH/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1
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Pete Erskine
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Ike Zimbel

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Re: RF Switch
« Reply #3 on: February 04, 2020, 08:51:32 pm »

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~Ike Zimbel~
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Radio Active Designs
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Keith Broughton

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Re: RF Switch
« Reply #4 on: February 05, 2020, 05:43:31 am »

Hi Henry, can you give us the Cole's notes on Absorptive vs. Reflective switches? I'm guessing it has to do with what happens to the non-selected source, but that's just a guess!
I, too, am curious about this.
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Henry Cohen

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Re: RF Switch
« Reply #6 on: February 06, 2020, 09:36:31 am »

Hi Henry, can you give us the Cole's notes on Absorptive vs. Reflective switches? I'm guessing it has to do with what happens to the non-selected source, but that's just a guess!

"Cliff Notes" south of the border.

You're correct: Describes the internal state of the non-selected port. Absorptive means the non-selected port is terminated internally (and not reflecting any energy that might be coming into that port from a connected device such as an antenna or amplifier). Reflective means the non-selected port is unterminated internally and thus will reflect most of any energy that would be coming in from a connected device.
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Henry Cohen

CP Communications    www.cpcomms.com
Radio Active Designs   www.radioactiverf.com

Henry Cohen

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Re: RF Switch
« Reply #7 on: February 06, 2020, 09:38:59 am »

I like RLC Electronics manual toggles.  The model number I usually spec is SM-2-B for manually operated BNC.  They're versatile.

https://www.rlcelectronics.com/products/9-switches/44-standard_coaxial_spdt,_50_.html?_75_ohm,_sr-2_series=

I forgot about RLC, and considering they're a 20 minute drive from my house (10 minutes from Mac), that's pathetic. They make excellent products, many being space qualified.
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Henry Cohen

CP Communications    www.cpcomms.com
Radio Active Designs   www.radioactiverf.com

Mac Kerr

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Re: RF Switch
« Reply #8 on: February 06, 2020, 11:38:51 am »

I forgot about RLC, and considering they're a 20 minute drive from my house (10 minutes from Mac), that's pathetic. They make excellent products, many being space qualified.

Who knew? I go by there on my way to the Laundromat or Mt Kisco Smokehouse.

Mac
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Henry Cohen

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Re: RF Switch
« Reply #9 on: February 06, 2020, 11:46:06 am »

Who knew? I go by there on my way to the Laundromat or Mt Kisco Smokehouse.

And right across the street from La Tulipe. Get your croissants when you head back from the smokehouse!
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Henry Cohen

CP Communications    www.cpcomms.com
Radio Active Designs   www.radioactiverf.com

ProSoundWeb Community

Re: RF Switch
« Reply #9 on: February 06, 2020, 11:46:06 am »


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