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Re: RX front end protection

Fred KG9X
 

Gary,
   Sorry but, N4KH Jim's response does not answer your question.  Except for antenna alignment Jim's was a totally different situation.   He was not using another TX as you are proposing but just RX on both antennas.
   I just looked at the manual and saw NO information given for max power input to the RX.  I would also like to know the answer to this question.  Some day I may be looking to do SO2R as I now have another rig in the shack so this information is needed.   George W2VJN had a paper on Managing Interstation Interference in 2009.  I don't have the link to the paper.  He gave an estimate of maximum safe level with a 2X safety factor for RX damage at 50mW (+17dBM).  Of course there are other RX factors but those are when the RX is operating and in your situation is not applicable.  If possible, can you measure the power expected at the 101 from the other TX to be safe?
--
73,  Fred  KG9X


Re: RX front end protection

Gary Schwartz
 

Thanks very much.  I doubt I'd run more than 100 watts on the secondary antenna, so looks like I'm good to continue.  Just waiting for the leaves to fall.

Gary
K3OS

 


Re: RX front end protection

N4KH-Jim
 

We used a 101d at field day this year with a wire beam connected to 1 port and a dipole under it at about 10 feet or so at 90 degrees to port 2 with no issues all weekend. Both receivers always on. We transmitted on the beam most of the time. 
Jim N4KH

On Wed, Sep 1, 2021 at 8:03 AM Gary Schwartz <garysch69@...> wrote:
How much front end protection is built-in the 101s?  The reason for the question is that I'm contemplating adding another antenna which would cross at nearly a right angle over the existing antenna at perhaps 10 feet spacing.  There is no issue if I have both antennas connected to the 101 and switch them appropriately.  The potential problem occurs if I want to use the new antenna with another radio.  That leaves the 101 connected to the existing antenna.

Looking at the diagrams there is a protection diode on the RX line.  From the specs it appears to be used for ESD.  The questions, therefore, are:

1.  With the radio OFF, is the RX connected to any of the the antenna ports?
2.  Do the antenna selection relays latch, or are they just "state" memorized and when the radio is powered on, they are reset to the last position?

My fallback position would be to mechanically switch things, but even that is prone to mistakes. 

Gary
K3OS


RX front end protection

Gary Schwartz
 

How much front end protection is built-in the 101s?  The reason for the question is that I'm contemplating adding another antenna which would cross at nearly a right angle over the existing antenna at perhaps 10 feet spacing.  There is no issue if I have both antennas connected to the 101 and switch them appropriately.  The potential problem occurs if I want to use the new antenna with another radio.  That leaves the 101 connected to the existing antenna.

Looking at the diagrams there is a protection diode on the RX line.  From the specs it appears to be used for ESD.  The questions, therefore, are:

1.  With the radio OFF, is the RX connected to any of the the antenna ports?
2.  Do the antenna selection relays latch, or are they just "state" memorized and when the radio is powered on, they are reset to the last position?

My fallback position would be to mechanically switch things, but even that is prone to mistakes. 

Gary
K3OS


Re: Radio for Sale, FTdx101d

w3cde_1999
 

You lose warranty with sale

JL


Re: FTDX101D SWR METER STOPPED WORKING

Rich K3VAT
 

TU Ray, 
Not far behind OCF dipoles are these "Multiband - No Radial Verticals".  Often on the lower bands (for example, 80M), the feedpoint impedance on these ~28 footers is just a few ohms resistive (at best) and trying to 'force' any power above a few hundred watts into them just generates all kinds of havoc.  73 Rich, K3VAT


Re: FTDX101D SWR METER STOPPED WORKING

ray sylvester nr1r
 


Re: FTDX101D SWR METER STOPPED WORKING

Ron-NE0X story
 

I use a ocf antenna with no rfi issues running legal limit on all bands except 15 meters where its not resonant. Ron ne0x


Re: FTDX101D SWR METER STOPPED WORKING

ray sylvester nr1r
 

most rf problems come from using poor antennas and not decoupling the feed line from the station. ocf dipole are the worst offender.The ocd dipole is a good all around performer but come with great rf issues.
i high quality rf choke installed at the shack end of the feed line will correct your rf issues. A good tutorial is w8ji page on steering rf currents.Grounding will not cure rf on feed lines 


Re: FTDX101D SWR METER STOPPED WORKING

Gary Schwartz
 

Tap the meter. Re-select SWR. If that fixes it, see if it happens again.  If it does, some RF is probably getting on the USB cable.  Some toroids and better bonding is the cure, should that be the case.

Gary
K3OS


FTDX101D SWR METER STOPPED WORKING

Daniel Swanson
 

My SWR meter turned grey and stopped working while calling cq on ft8 any ideas why or how to fix this problem?


Re: Tunner memories for antenna 1, 2 or 3

Tony
 

I have just noticed the same thing. 

Following, in case there's a solution.
--

Tony W6ZZY


Re: macro command sending

WF3T
 

Works perfectly and it doesn't matter if RTS is set to on or off in the radio. Great find Gary. 

73,
Steve, WF3T



Re: macro command sending

Brian Smithson
 

This is good stuff! Several logging apps have radio control capabilities. I use DX Lab's Commander which has extensive rig control features. I've created buttons and sliders to tweak the radio, and one of them is a power toggle - barefoot (200W) or driving the amp (20W). These serial port windows are a great way to test the commands.

Works a treat!

73

-Brian n8wrl

On Fri, Aug 27, 2021 at 2:58 PM Gary Schwartz <garysch69@...> wrote:
Here's a simple way to emulate the FH-2 keypad, change power levels or do any kind of custom settings you want.  I ran across this simple command line program that sends commands to any serial port.  To test, put the downloaded file on your desktop, open a command window and use the command such as:  

sendserial.exe /devnum 9 "pc025;"  

This sends the command to set the power level to 25 watts to com port 9.  Once you get a command working the way you want, create batch file, which is a simple text file with the same command in it.  Label it "25 Watt.bat" for example.  Double click on it and the file executes.  The same com port rules apply, i.e., two programs can't use the same com port without com port sharing software !!!

https://batchloaf.wordpress.com/serialsend/

Multiple commands can be sent one right after the other as long as each individual command ends with a semi-colon.

If you're clever, a loop can be set up.  They terminate with a control-C .  How about voice memory auto repeat?  The default port speed is 38,400.  

Gary
K3OS




macro command sending

Gary Schwartz
 

Here's a simple way to emulate the FH-2 keypad, change power levels or do any kind of custom settings you want.  I ran across this simple command line program that sends commands to any serial port.  To test, put the downloaded file on your desktop, open a command window and use the command such as:  

sendserial.exe /devnum 9 "pc025;"  

This sends the command to set the power level to 25 watts to com port 9.  Once you get a command working the way you want, create batch file, which is a simple text file with the same command in it.  Label it "25 Watt.bat" for example.  Double click on it and the file executes.  The same com port rules apply, i.e., two programs can't use the same com port without com port sharing software !!!

https://batchloaf.wordpress.com/serialsend/

Multiple commands can be sent one right after the other as long as each individual command ends with a semi-colon.

If you're clever, a loop can be set up.  They terminate with a control-C .  How about voice memory auto repeat?  The default port speed is 38,400.  

Gary
K3OS




Re: A Note to Users of Ham Radio Deluxe (HRD)

Philip Fauchon
 

Totally agree with Ray.

 

73 de Phil, G0JSP

 

Sent from Mail for Windows

 

From: ray sylvester nr1r via groups.io
Sent: 27 August 2021 14:01
To: FTDX101D@groups.io
Subject: Re: [FTDX101D] A Note to Users of Ham Radio Deluxe (HRD)

 

win4yaesu and log4om2 complete control no issues

 


Re: A Note to Users of Ham Radio Deluxe (HRD)

Kees van Engelen
 

There are indeed some flaws for the 101 in HRD..
I make the command myself (except the sliders of course) that I miss.
Even the TX REQ for external tuning :-)

--
73
ON9KVE
Kees


Re: A Note to Users of Ham Radio Deluxe (HRD)

Lahra Flip Svare KT9X
 

That is my setup as well.  Flawless.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On Friday, August 27th, 2021 at 06:01, ray sylvester nr1r via groups.io <dxhogg@...> wrote:

win4yaesu and log4om2 complete control no issues


Re: A Note to Users of Ham Radio Deluxe (HRD)

ray sylvester nr1r
 

win4yaesu and log4om2 complete control no issues


Re: Issues using an external MFJ-993B auto-tuner

Lou W7HV
 

On Fri, Aug 27, 2021 at 03:25 AM, Kees van Engelen wrote:
With melancholy I often think of the times of Collins, Heathkit etc, when everything was set by hand.

73
ON9KVE
Kees
Yep.  I like knobs.  My big external tuner is manual (TenTec) and my QRO amp (tube) is manual tune as well, though in my current circumstances I use neither. HI HI

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