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HenrikBengtsson / my-paragliding-setup

NOTES: My Paragliding Setup
https://henrikbengtsson.github.io/my-paragliding-setup/
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Wireless PTT(?) #7

Open HenrikBengtsson opened 1 year ago

HenrikBengtsson commented 1 year ago

https://baofengtech.com/product/gmrs-pro-k1-adaptor/ https://baofengtech.com/product/bs-ptt/

HenrikBengtsson commented 1 year ago

Ah, maybe not. The cable doesn't have a Bluetooth receiver as I first thought.

To build our own wireless PTT;

image

"You want your switch to short the shield of each of the connectors to each other, strange as that sounds. These plugs are commonly known as TRS, or tip-ring-shield, so the shield is the part closest to the body of the plug. The ones you want are both marked PTT in this image (don't let the other stuff confuse you, these pins do multiple things when connected with mic or speaker to other pins, but they transmit when connected to each other):"

I've confirmed that shorting the two PTT rings will trigger the radio to transmit. /HB 2024-05-01

Source: https://ham.stackexchange.com/questions/7398/how-to-make-a-ptt-button-for-baofeng-uv-5r/7401#7401

HenrikBengtsson commented 4 months ago

One can build a wireless PTT based on 433Mhz remotely controlled momentary switch. /HT David S.

  1. https://www.amazon.com/dp/B08D39XWS5

  2. https://www.amazon.com/dp/B082WXR37T

  3. https://www.aliexpress.us/item/3256806042722497.html

  4. https://www.aliexpress.us/item/3256801331811762.html (I got this one)

    • Dimensions: 34x14.3mm
    • Case: 40x20mm
    • Input: >= 3.5V (but I've verified it works with 2 x 1.5V AA batteries /2024-05-15)
    • Transmitter: Mono button
    • Price: 3.73 USD receiver, 3.11 USD transmitter, 11.35 USD receiver + 3 transmitters

  5. https://www.aliexpress.us/item/2251832811706017.html

  6. https://www.aliexpress.us/item/3256805105354428.html

    • Dimensions: 21x11x8mm
    • Transmitter: Mono button
    • Price: 3.37 USD receiver, 7.41 USD receiver + transmitter, 11.56 USD receiver + 3 transmitters