Remote Rig
RRC 1258 Support in English => General discussion forum => Topic started by: W9KB on 2010-09-17, 23:06:37
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I am trying to interface the subject amplifier over radio com1...
No joy yet, my settings are as follows:
Mode 5
4800 baud
8 data bits
1 stop bit
No parity
No rts/cts (??)
Com1 terminator 0d hex
I am using a serial level USB convertor out of the remote com1.
Any thoughts?
Ken-W9KB
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Hi Ken,
do you get it running without the RRC in between ?
and is this the setup you use ?
pc-> usb-to-rs232-> RRCcom1-> internet -> RRCcom1 -> Alpha
Guy ON4AOI
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Hi
You can only use mode 5 and terminator 0d if you really know that 0d is the terminator.
I can't find any protocol spec on the net so I do not know.
try mode 1 first if you don't know.
if mode 1 works you can try mode 3 which is more effective.
mode 5 is best if you know the protocol
73 de mike
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I have tried the following:
pc-> usb-to-rs232-> RRCcom1-> internet -> RRCcom1 -> Alpha
I will eliminate the RRC link and try again. Spent the weekend setting up XYL's new iMac.. My first real Apple experience other than iPhone or iPad.
After just a fews hours I am a convert, please consider writing RRC software for the iMac.
Ken-W9KB
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Ok Then I probably know what is wrong
pc -> USB-to-rs232 -> make short cable db9f to db9m -> RRCremote com1
DB9Female DB9Male
2 2
3 3
4 7
5 5
RRCradio com1 to amp
DB9Female DB25 Male amplifier
2 3
3 2
8 5
5+7 7
That should do it
Guy ON4AOI
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Guy, Thanks for all the help on both questions. I did just finish a test of my components without the RRC units as follows:
1. pc_serial_out-->9pin-to-25pin homebrew cable-->Alpha87
2. pc_USB---> rs-232 serial convertor-->9pin-to25pin homebrew cable-->Alpha87
Both serial & USB cable systems work FB. I wonder about the wiring of com1 females out of box.
Your suggestion seems like a null cable solution.
Will give it a try.
Thanks & 73
Ken-W9KB
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You will have it working when you make the first cable between usb 232 & RRC send from my htc hd2
Guy ON4AOI
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Guy, I looked a your solution again... not quite a null.
I have a couple of questions: Your last posted suggested just a short cable on the control side needs to be made. Looks like I flip the TX & RX signals and pass the RTS out of the box to DTR on the level convertor. I just wanted to be clear since I have a female out on com1.
Thanks & 73
Ken-W9KB
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Ken,
yep 2 and 3 are reversed and DTR is connected to RTS
you can find it back in the manual also if you look under expert-1K amp
Guy ON4AOI
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I found success with a null modem adaptor on com1 radio side. My Alpha is happy, although, bar graph info for power, swr, grid current is too slow to be useful. I need to find the message terminator. Walt-HB9ZS, the software author says it a simple 'CR', but I need to look at the actual messages.
Thanks for all the help.
Ken-W9KB
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Nice to see its working Ken
Guy ON4AOI
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For group posterity here are my final serial settings for Alpha87a interface on com1:
Mode 5
4800 baud
8 data bits
1 stop bit
No parity
RTS/CTS Yes (Alpha setup manual says NO, however, It must be set to YES)
0d Terminator (CR- Carriage Return in HEX)
Null modem adaptor on Radio side RRC if your cable is wired as described in Alpha87a manual i.e.
DB-25M DB-9M
Pin2----------->Pin3 TXD
Pin3----------->Pin2 RXD
Pin4----------->Pin7 RTS
Pin5----------->Pin8 CTS
Pin7----------->Pin5 GRD
It could be wired to elimanate null adaptor, by simply flipping TXD/RXD & RTS/CTS.
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Hey Ken, et al
Any updated observations to share on using the serial port of the Alpha 87a for remote control? I need to swap out the KPA1500 in my remote and install an 87a. Any wisdom from you or the assembled masses would be most welcomed.
Dennis, K7FL