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02-11-2017, 10:10 PM
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Join Date: Jul 2013
Location: Milwaukie, OR
Posts: 35
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Patch 2 radios
What is the easiest way to patch 2 Becker transceivers together so I can monitor one while transmitting and receiving on the other? I'm thinking in terms of a selector switch to toggle between them. Thanks.
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02-12-2017, 05:34 AM
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Join Date: Nov 2005
Location: Asheville, NC
Posts: 2,692
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Try buying this first.
Aeroelectric book
It has a section on audio including exactly what you are asking for.
__________________
Bill Pendergrass
ME/AE '82
RV-7A: Flying since April 15, 2012. 850 hrs
YIO-360-M1B, mags, CS, GRT EX and WS H1s & A/P, Navworx
Unpainted, polished....kinda'... Eyeballin' vinyl really hard.
Yeah. The boss got a Silhouette Cameo 4 Xmas 2019.
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02-12-2017, 05:44 AM
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Join Date: May 2005
Location: X35 - Ocala, FL
Posts: 3,679
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The way I have done this is to have a switch that swaps the intercom mic output between radios, then you listen to one or both by adjusting their volumes. The main benefit of an audio panel is that it mutes one input while you transmit on the other so you don't get feedback.
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Jesse Saint
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02-12-2017, 07:05 AM
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Join Date: Nov 2005
Location: Asheville, NC
Posts: 2,692
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Mine is similar Jesse. 2 radios and a switch for mic/tx. All audio outputs available at all times depending on volume control setting.
The audio outputs should have at minimum a couple of resistors to keep from damaging the joined output amps. That is best shown with a schematic rather than words. Therefore the the recommendation for the book.
__________________
Bill Pendergrass
ME/AE '82
RV-7A: Flying since April 15, 2012. 850 hrs
YIO-360-M1B, mags, CS, GRT EX and WS H1s & A/P, Navworx
Unpainted, polished....kinda'... Eyeballin' vinyl really hard.
Yeah. The boss got a Silhouette Cameo 4 Xmas 2019.
Last edited by rzbill : 02-12-2017 at 03:02 PM.
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02-19-2017, 06:19 AM
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Join Date: Oct 2005
Posts: 182
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PMA4000
Quote:
Originally Posted by omrsramsay
What is the easiest way to patch 2 Becker transceivers together so I can monitor one while transmitting and receiving on the other? I'm thinking in terms of a selector switch to toggle between them. Thanks.
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Why not consider getting a little more out of your switches. The PMA4000 was designed specifically for Vans Aircraft. In fact, when it was being developed, the code name for it was Scappose, its the airport where Mr. VanGrunsven flew out of.
__________________
Mark Scheuer
PS Engineering, Inc.
VAF Advertiser
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02-19-2017, 08:59 AM
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Join Date: May 2006
Location: Pocahontas MS
Posts: 3,884
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Quote:
Originally Posted by mscheuer
Why not consider getting a little more out of your switches. The PMA4000 was designed specifically for Vans Aircraft. In fact, when it was being developed, the code name for it was Scappose, its the airport where Mr. VanGrunsven flew out of.
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Well, not to knock the quality of your product, but are you suggesting that if all we need is to switch between two comms, it's getting more value from our money to pay 2 orders of magnitude more money (that's 100 times more, for the math challenged) for the same function?
Shameless self promotion?
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02-19-2017, 10:04 AM
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Join Date: Oct 2011
Location: Dallas, TX
Posts: 27
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I have 2 separate PTT buttons on my Infinity style stick. The trigger transmits Comm 1 and the thumb (or "alternate pickle button") is Comm 2. I monitor both radios and always use my trigger to talk to ATC and Comm 2 (thumb) to talk to others. You never have to change from Comm1/2 on an intercom -- transmits correct radio based on which button you push. Personally, I love it!
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Kent "Yobo" Yohe
Bought Harmon Rocket
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02-20-2017, 01:39 PM
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Join Date: Oct 2005
Posts: 182
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Shameless - Charlie
Quote:
Originally Posted by rv7charlie
Well, not to knock the quality of your product, but are you suggesting that if all we need is to switch between two comms, it's getting more value from our money to pay 2 orders of magnitude more money (that's 100 times more, for the math challenged) for the same function?
Shameless self promotion?
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I think not Charlie:
Obviously you do not know that I am a sponsor of Van Airforce.
For those who are not mathematically challenged, that would be 67dB more in audio level, by the way.
I've paid an annual fee to Van's Airforce that allows me to promote our products twice a year.
It is sponsors and the user's donations that helps keep Doug's forum up and running.
I chose this thread because it I believed it was appropriate, it was a discussion of audio switching means.
If you go to either Sun 'N Fun or Oshkosh this year, please stop at our booth. I'd like for us to meet so you might get a clear picture of my integrity.
Sincerely,
Mark
__________________
Mark Scheuer
PS Engineering, Inc.
VAF Advertiser
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02-20-2017, 03:06 PM
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Join Date: May 2006
Location: Pocahontas MS
Posts: 3,884
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Well, I can read your signature line...
No challenge to your right to promote your business; just a question about whether it serves the end user best to recommend a $850 product to replace $8.50 worth of switch(es).
This isn't a question about whether your product is worth that money for what it does (I assume it does more than switch transmit function between radios), but about whether it's valid to promote the $850 product as having more value to the customer, if $8.50 & a little work with wire, crimps and solder will get the job done.
Charlie
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