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Author Topic: IC7000 to FL2100Z  (Read 2798 times)
VK5DO
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Posts: 124




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« on: March 05, 2012, 06:46:42 PM »

Hi all,

I've been given a 2100z which I want to connect to my IC7000.  My question is, do I need to provide an extra relay between the 7000 and the amp? The spec for the 7000 relay/send line is 16v / 200mA. Will keying the 2100Z directly fry this?

Yours
Dene
VK5DO

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AD4U
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Posts: 2437




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« Reply #1 on: March 06, 2012, 05:57:53 AM »

The FL2100 is keyed by grounding the internal relay coil via a rear panel jack.  This is similar to how the Heathkit SB-200 is keyed.  

The 7000 will not key it directly.  Build a simple interface.  Use a reed relay with a 16V coil or a relay with a 12V coil and a suitable resistor.  Use the 16V 200mA out of the 7000 to "key" the reed relay and use the contacts of the reed relay to key the amp.

I recommend that you put a diode across the reed relay coil (in the proper orientation) to eliminate voltage spikes when the reed relay coil is energized and de-energized.

Dick  AD4U
« Last Edit: March 06, 2012, 06:04:50 AM by AD4U » Logged
VK5DO
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Posts: 124




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« Reply #2 on: March 06, 2012, 05:52:48 PM »

Great advice. Thank you.
Dene
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WR0F
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Posts: 13


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« Reply #3 on: May 31, 2012, 07:35:39 PM »

http://www.dxengineering.com/Parts.asp?ID=3108&PLID=297&SecID=146&DeptID={2051203C-0F4F-4955-B00F-6D63302B5294}&PartNo=AME%2DARB%2D704I2

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K6UJ
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« Reply #4 on: May 31, 2012, 10:24:37 PM »

Another option

http://www.theheathkitshop.com/page13/page13.html
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W1QJ
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Posts: 2607




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« Reply #5 on: June 01, 2012, 03:15:35 AM »

The FL2100 is keyed by grounding the internal relay coil via a rear panel jack.  This is similar to how the Heathkit SB-200 is keyed.  

The 7000 will not key it directly.  Build a simple interface.  Use a reed relay with a 16V coil or a relay with a 12V coil and a suitable resistor.  Use the 16V 200mA out of the 7000 to "key" the reed relay and use the contacts of the reed relay to key the amp.

I recommend that you put a diode across the reed relay coil (in the proper orientation) to eliminate voltage spikes when the reed relay coil is energized and de-energized.

Dick  AD4U

This is an old thread, but this won't work since the send line does not send voltage, rather the voltage stated 16v at 200ma is what the amp can sink to ground.  It does not produce this voltage. So this advice will not work.
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