Re: [Elecraft] K3 - ACC Connector - Band0-3 output indicator
Finally got to make up an LED tester for both the Band0-3 and Digout1. Everything looks fine. No problems selecting two antennas on all bands 160-6M. I have the built in 2M transverter. On 2M I get , the same as on 60M. But 2M selects Ant3. So I don't think there will be any problems. Next phase later this week when I hook up the BCD-14 board. 73, N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Sunday, January 27, 2013 7:37 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 - ACC Connector - Band0-3 output indicator Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. Easy enough ... 4 NPN transistors - base to BAND0-3 pins, LED and limiting resistor between +13.8 and collector of the transistors, emitter of the transistor to ground. The output on the KIO3 for 60M has me concerned. Don't know why it should concern you. is just another state and I don't see used for any other band *or* any transverter band. Your bigger concern might be the reuse of one of the other band values for 2 Meters depending on how you decode HF vs. the transverter bands. 73, ... Joe, W4TV On 1/27/2013 6:29 PM, N2TK, Tony wrote: I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. The BAND0-3 outputs come off of 5V through 2.2K pull-up resistors with a 220 ohm resistor in series with the output on the ACC socket. It would seem standard 20ma LED's would not work here with the 2.2K resistor inline. Maybe a diode inline to isolate with a separate supply on the LED's or use some very low amperage LEDs or drive a Mosfet which drives a LED? The output on the KIO3 for 60M has me concerned. I want to make sure it doesn't cause me a problem when switching between 160-2M and between auto antenna selection and manual antenna selection. Tnx for any feedback. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - ACC Connector - Band0-3 output indicator
Tnx Joe, Don and Wes for feedback. I was leaning towards the 4 NPN's but first wanted to check in case I was missing something. The reason I want to see the value of BAND0-3 is that I will be monitoring the output with LED's of two UM BCD-14's. While building this project I want to see if there are any cases where there might be a conflict. My project is to use BAND0-3 as input for automatic operation to one BCD-14 while I will use a binary encoder for manual operation as input to the other BCD-14. I will use a pair of hex buffers to switch between auto and manual antenna band selection. I will use another pair of hex buffers to select which bank of antenna outputs I want. The plan is to use DIGOUT1 (Front panel ANT1/ANT2) to select which bank. This gives me auto operation with two antennas per band, which is what I have for most bands. Hopefully this all makes sense. I have been procrastinating doing this project for a long time. Finally got my 80M 4-sq with elevated radials working well and now the ground is snow covered. So time for other projects. Couldn't find an off the shelf package that would do this. 73, N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV Sent: Sunday, January 27, 2013 7:37 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 - ACC Connector - Band0-3 output indicator Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. Easy enough ... 4 NPN transistors - base to BAND0-3 pins, LED and limiting resistor between +13.8 and collector of the transistors, emitter of the transistor to ground. The output on the KIO3 for 60M has me concerned. Don't know why it should concern you. is just another state and I don't see used for any other band *or* any transverter band. Your bigger concern might be the reuse of one of the other band values for 2 Meters depending on how you decode HF vs. the transverter bands. 73, ... Joe, W4TV On 1/27/2013 6:29 PM, N2TK, Tony wrote: I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. The BAND0-3 outputs come off of 5V through 2.2K pull-up resistors with a 220 ohm resistor in series with the output on the ACC socket. It would seem standard 20ma LED's would not work here with the 2.2K resistor inline. Maybe a diode inline to isolate with a separate supply on the LED's or use some very low amperage LEDs or drive a Mosfet which drives a LED? The output on the KIO3 for 60M has me concerned. I want to make sure it doesn't cause me a problem when switching between 160-2M and between auto antenna selection and manual antenna selection. Tnx for any feedback. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - ACC Connector - Band0-3 output indicator
I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. The BAND0-3 outputs come off of 5V through 2.2K pull-up resistors with a 220 ohm resistor in series with the output on the ACC socket. It would seem standard 20ma LED's would not work here with the 2.2K resistor inline. Maybe a diode inline to isolate with a separate supply on the LED's or use some very low amperage LEDs or drive a Mosfet which drives a LED? The output on the KIO3 for 60M has me concerned. I want to make sure it doesn't cause me a problem when switching between 160-2M and between auto antenna selection and manual antenna selection. Tnx for any feedback. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - ACC Connector - Band0-3 output indicator
Why don't you just trust the decoder? --- On Sun, 1/27/13, N2TK, Tony tony@verizon.net wrote: From: N2TK, Tony tony@verizon.net Subject: [Elecraft] K3 - ACC Connector - Band0-3 output indicator To: 'elecraft' elecraft@mailman.qth.net Date: Sunday, January 27, 2013, 4:29 PM I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. The BAND0-3 outputs come off of 5V through 2.2K pull-up resistors with a 220 ohm resistor in series with the output on the ACC socket. It would seem standard 20ma LED's would not work here with the 2.2K resistor inline. Maybe a diode inline to isolate with a separate supply on the LED's or use some very low amperage LEDs or drive a Mosfet which drives a LED? The output on the KIO3 for 60M has me concerned. I want to make sure it doesn't cause me a problem when switching between 160-2M and between auto antenna selection and manual antenna selection. Tnx for any feedback. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - ACC Connector - Band0-3 output indicator
Tony, I would suggest that you use a 74xx07 Hex Buffer between the K3 band outputs and the LEDs to show you the state of the band outputs. If the state for 60 meters bothers you, use a 74xx06 which inverts the output so all 4 LEDs will be on for 60 meters. Like Wes, I think you should trust the K3 band outputs and your efforts would be better placed in lighting LEDs from the output of your BCD-14 band decoder to give you confidence that the band decoder is working properly. Of course, you could that with your DMM without building anything extra. 73, Don W3FPR On 1/27/2013 6:29 PM, N2TK, Tony wrote: I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. The BAND0-3 outputs come off of 5V through 2.2K pull-up resistors with a 220 ohm resistor in series with the output on the ACC socket. It would seem standard 20ma LED's would not work here with the 2.2K resistor inline. Maybe a diode inline to isolate with a separate supply on the LED's or use some very low amperage LEDs or drive a Mosfet which drives a LED? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - ACC Connector - Band0-3 output indicator
Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. Easy enough ... 4 NPN transistors - base to BAND0-3 pins, LED and limiting resistor between +13.8 and collector of the transistors, emitter of the transistor to ground. The output on the KIO3 for 60M has me concerned. Don't know why it should concern you. is just another state and I don't see used for any other band *or* any transverter band. Your bigger concern might be the reuse of one of the other band values for 2 Meters depending on how you decode HF vs. the transverter bands. 73, ... Joe, W4TV On 1/27/2013 6:29 PM, N2TK, Tony wrote: I would like to see (LED) the state of the BAND0-3 outputs. Has anyone built or bought some kind of 4-indicator for this? I want to do this as a temporary indicator while I am playing with a pair of UM BCD-14 band decoders. The BAND0-3 outputs come off of 5V through 2.2K pull-up resistors with a 220 ohm resistor in series with the output on the ACC socket. It would seem standard 20ma LED's would not work here with the 2.2K resistor inline. Maybe a diode inline to isolate with a separate supply on the LED's or use some very low amperage LEDs or drive a Mosfet which drives a LED? The output on the KIO3 for 60M has me concerned. I want to make sure it doesn't cause me a problem when switching between 160-2M and between auto antenna selection and manual antenna selection. Tnx for any feedback. 73, N2TK, Tony __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
