Messages

1

General discussion forum / Re: Is the DDNS down?

« on: 2022-07-14, 03:02:37 »

I also can not connect to my remote station.  Other connections such as security camera and computer to computer are working so I suspect remoterig DDNS is not working.

2

General discussion forum / Re: RRC unit i low temperatures

« on: 2022-01-21, 03:05:59 »

All my equipment, including the RRC's have worked fine from -12c to +36c in an unheated shed for 9 years.  I haven't seen any temperature related problems.   I also use the Micfrobit 1289 antenna switch at the remote site.  That unit was modified to read the room temperature so I know excactly what the temperature is.

3

General discussion forum / Re: AS1289 Antenna Switch <Temperature sensor info>

« on: 2020-06-22, 21:31:33 »

Did you get your temperature switch to work?  I've been using that feature for years.  If you need more information, let me know and I'll look at the connections next time I am at the remote site.  I have the sensor, which looks like a transistor, hanging from the case on a piece of wire.  Only two of the leads are used.

73,  John, AD8J (e-mail OK on QRZ.com)

4

General discussion forum / Solved my keying problem

« on: 2020-06-12, 03:39:51 »

For at least a year I was having a problem with the CW keying messing up.  I worked around it by listening to my signal coming back thru the link.  When it screwed up, which has been described to me as "slurring", I would just resend.  The listening delay wasn't a problem as I key with a computer since almost all CW operating is in contests.  I tried every setting possible and replaced every component in the remote link.  I came to the conclusion that it was an Internet problem and I wasn't going to be able to fix it.  About six weeks ago I got a call from the Spectrum (cable system) Tech who said he needed to remove a filter from my cable drop at the remote site as it was no longer needed.  I told him to go ahead and remove the filter.  The result is that I now hardly ever have a problem with the keying.  I've waited until now to make this report to make sure the problem didn't return.  The bottom line is if you have a similar problem, ask if there is a filter (trap) on your cable drop.

5

General discussion forum / Re: Help - Hum in transmit SSB audio

« on: 2018-10-27, 21:24:06 »

Yesterday I made three trips to the remote site, trying different things to get rid of the hum.  Having replace just about everything, I replace the radio and the hum was gone.  By the time I got home, it was back.  Today I finally found the problem.  It appears that when I put the mic jumpers in place on the remote site RemoteRig unit, I reversed the mic and ground.  For some reason, it worked for many years before developing the hum.  Now that I have it wired correctly, some other things that I figured were just part of operating remote corrected themselves.  I can now monitor my own transmitted audio and have better control over the recording and playback levels in the voice keyer.  The mic gain and processor level controls seem to adjust better.  Having just made 75 contacts in the phone DX contest, I am considering this problem solved.

6

General discussion forum / Re: Help - Hum in transmit SSB audio

« on: 2018-10-27, 04:44:21 »

I found the answer to my question at:  http://www.g4gcp.co.uk/TS-480/kenwood_serial_numbers.pdf    My radios are the newer ones and use Configuration type 1.  I'll recheck the jumpers at the remote site tomorrow.

7

General discussion forum / Re: Help - Hum in transmit SSB audio

« on: 2018-10-27, 04:34:10 »

I removed the UPS and put all the different power supplies on the same circuit.  Still had hum in the transmit audio.  As a last resort, I replaced the TS-480 at the remote site and didn't have any hum.  But later on, it was back.  I have the red jumpers configured as "Connection type 1" and it has been that way for years.   Grasping at straws, I'm wondering if I should be using "Connection type 2".  The instructions say use "1" for serial numbers after 70600056.  My serial numbers are:  B4300087 and B1400107 which doesn't make sense with the all number serial number mentioned..  The radios were purchased in 2011 and 2014.  Can anyone confirm if my radios are older (Connection 2) or newer (Connection type 1)?

8

General discussion forum / Re: Help - Hum in transmit SSB audio

« on: 2018-10-26, 17:07:13 »

Mitch:  Thanks for your suggestions.  Today I checked all the red jumper connections and replaced the power supply that feeds the rig.  I still have hum.  I think I'll make another trip to the remote site and take the UPS out of the circuit.  I'll also take a close look at the power strips and the cabling.

9

General discussion forum / Help - Hum in transmit SSB audio

« on: 2018-10-26, 00:13:29 »

I've been using my Remote Rig pair with a TS-480 for over 4 years with no SSB transmit audio problems.  All of a sudden, I have a very loud hum being transmitted.  CW is fine.  If I take the control head to the remote site, the transmit audio is fine.  I replaced the 12 volt power supply for both RRC's but no change.  I also replaced the 8-pin mic cable between the radio RRC and the rig but the hum is still there.  If I reduce the mic gain to zero, the problem goes away but I have no transmit audio.  The higher the mic gain, the higher the hum.   Using both normal audio and processed audio results in the same hum.  If the TX monitor is in the off position, the hum is reduced slightly.  If I increase the TX monitor level, the hum increases.  If I key the transmitter, in SSB mode, without a mic, the hum is still there.   I normally run the RRC audio configuration at setting 5.  I tried 2 and 7 but it didn't change anything.  I've run out of things to try.  Does anyone have a suggestion?

10

General discussion forum / Re: Problem with AS-1289 Switch

« on: 2016-03-29, 19:29:56 »

My supply of capacitors arrived from China.  100 for USD 1.25, including shipping.  I installed six in the antenna switch and the problem went away completely.  I can crank the Acom 2000A power up to legal max and the indicator lights don't flash and the relays don't chatter.  While I was in the unit, I did the grounding mod.  I never noticed a noise problem but it seemed like a reasonable thing to do.  If anyone adds the capacitors, make sure you have a magnifing glass or really good eyes since the solder points are pretty small.

11

General discussion forum / Re: Problem with AS-1289 Switch

« on: 2016-03-10, 01:53:23 »

Mike:

Thanks for the fast reply.  I've ordered some caps and will report in when the mods are complete.

12

General discussion forum / Problem with AS-1289 Switch

« on: 2016-03-09, 18:27:50 »

I have developed a problem with my AS-1289 antenna switch when I run high power on 10 meters.  At about 600 watts the led lights start to flash in time with the CW or SSB peaks.  When I get up to about 1000 watts the relays start to chatter and this causes the amp to fault.  I also have the problem on 12 and 15 meters but not as bad.  The main antenna is a SteppIR DB-36 so the SWR is about 1.2 to 1 or less.  Swapping the antenna to a different port tends to help a bit but the problem is still there.  Changing to a different antenna sometimes helps and sometimes it doesn't.   I've tried a different power supply.  I've unhooked the temperature sensor.  I've unhooked the serial connector, which I don't use.  I've tried adding a ground to the switch.  I've tried a different Ethernet cable.  The only thing that solves the problem is to use a barrel connector and bypass the antenna switch.  Doing that results in no lights flashing.  So it appears that the problem is only when the RF is going through the switch.  Has anyone seen this before?

13

General discussion forum / Re: TS480 noise during TX

« on: 2015-07-10, 14:54:12 »

I had a similar problem which was solved by using separate wall warts for each piece of equipment.

14

General discussion forum / Re: Controlling Acom 2000A with RC-1216H

« on: 2015-07-09, 18:34:13 »

Reporting in to the group that I'm now controlling my Acom 2000A remotely with the RC-1216H.  If you do this, save yourself some grief and purchase  some DB-9 breakout connectors to make your cables with.  This way you can also see where the wires are connected.  For the cable between the amp and the RCU, that uses all 9 wires, I split it open and spliced into wires 5 and 9.  A breakout connector would have made this simpler and neater  For the cable between the RC-1216H and the amp, I tried using 9 wire null cables, regular cables and a null adapter.  Nothing worked.  I found that I had to make an "exact" cable with a DB-9F on each end.  Wire pin 2 to 3, 3 to 2 and 5 to 5.  My next project is to install a relay to apply 240V to the amp so I can shut it down completely.

15

General discussion forum / Controlling Acom 2000A with RC-1216H

« on: 2015-07-02, 03:56:49 »

I'm in the process of hooking up my new Acom 2000A at the remote site using a RC-1216H.  I've read the instructions and am ready to make the necessary cables.  Can the RC-1216H control the Acom 2000A without having the Acom 2000A RCU hooked up?  If so, do I just run the wires from Aux SW1  to pins 5 and 9 on RCU connector on the amp itself?  That would also be in addition to the null modem cable from the RC-1216H to the amp.