Эксперт Электроникс - Expert Electronics - Topic: How to key an external amplifier? (1/1)

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In this category, you can discuss different ways of connection between EE radios and external Power Amplifiers.

TOPIC: How to key an external amplifier?

How to key an external amplifier? 26 Jul 2022 15:09 #1

py2rn
OFFLINE
Posts: 1

I am using ESDR2 software, looking for some way to key my external amplifier (it is home made) I just need a simple PTT action, for instance, when I press MOX it will send ground or send +Vcc (ideally +Vcc) so I can key up my external relay?
PA is enabled in the top of the screen, On the Ext Ctrl I tryied pin 14 but it puts out constant 15V, MOX on or off will not afftect it, also tryied pin 13 (X8PTT) but nothing happens when pressing MOX. I tried some clarifications in the manual, also in this forum, but could not find any practical way to do this.

Thank you

Ed PY2RN

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How to key an external amplifier? 26 Jul 2022 20:21 #2

S58WW OFFLINE A half-truth is the most cowardly of lies. Posts: 73 Thank you received: 25	eesdr.com/images/Document/SunSDR2_PRO/External%20Devices%20connection%20Diagram_SunSDR2PRO_EN.pdf Did you use diode on X8 pin? It should work.
	73 Pibo S58WW SUNSDR2DX Main shack PC: AMD RYZEN 7 2700 (8 cores ; 16 threads) 32 GB RAM on Gigabyte Aorus Elite B450 with 1TB Samsung 980 NVMe M.2 NVIDIA GeForce GTX 1660 SUPER Last Edit: 26 Jul 2022 20:39 by S58WW. The administrator has disabled public write access.

How to key an external amplifier? 27 Jul 2022 06:02 #3

iw7dmh OFFLINE Posts: 113 Thank you received: 63	Hi, the following is a widely used and working solution. Pay attention during the soldering: burning the inside SMT fuse is very easy. 73'
	The administrator has disabled public write access. The following user(s) said Thank You: S58WW, hari, py2rn

How to key an external amplifier? 01 Jun 2023 09:48 #4

F4JFG OFFLINE Posts: 30 Thank you received: 4	hello the scheme works with an acom 1010 THANKS cordially Pascal F4JFG Attachments: PTTSUNSDR2DX.jpg (111KB)
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How to key an external amplifier? 02 Jun 2023 05:38 #5

F4JFG OFFLINE Posts: 30 Thank you received: 4	hello yes
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How to key an external amplifier?

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