Once you read the the title of this post and stop laughing …. Let me explain!
The Radio is my FT847 and it seems to be having some minor problems on the higher part of the 20m band when the CAT cable is attached to the back of the radio.
I recently was brought into the 21st century(kicking and screaming I might add) and have started using that fantastic piece of software- Ham Radio Deluxe. I am using it in conjuction with my old(but so am I) Dell Laptop and am using a Generic USB to serial adapter to the recommended “Null Modem Cable” which in turn is plugged into the CAT Port on the FT 847. I will happily say that everything seems to be working fine so please do not think this is a rant…
I have been using the above mentioned setup for a couple of weeks now with no known problems till the other day.
I was trying to make a contact on 20m (HF Pack Calling Freq 14.342.5) and suddenly noticed an icon flashing on the display of the radio while I was transmitting. A 2nd look at the display showed me it was not the HIGH SWR icon I was thinking it would be, but rather the CAT icon and it was flickering with my voice.
When I off keyed I had lost my rcv audio as if the volume had been turned off.
I should mention at this point that I have used this program and equipment on all bands in the past with no noticed issues. This appeared to be the first…
When I have operated my rigblaster using the same USB adaper on PSK31 in the past there has been no issues but after checking my logs all my 20m operating in the past (since Ihooked up HRD) has been well below 14.300 so perhaps its more specific to the upper end of the band
A couple of days later with the software not running the the same thing happened on the same frequency. Lost receive audio and the CAT Icon was flashing. I then disconnected the CAT cable at the computer end by unplugging the USB interface with the same results. RFI…
I then removed the FT 847 from its operating position and removed the CAT Cable altogether and reinstalled the radio and resumed my transmitting on the upper end of 20m and all was good.
It seemed that the combination of the CAT cable and the USB to Serial interface cable is lacking a bit of shielding which allows my radio to RFI itself when on the upper end of 20m.
Now when I get some time I will re install the cable with some toroids on the cable ends and also take more care routing the CAT cable, but for now its easier just to operate without the Computer Control and just use the HRD Software as the fantastic logging program and operating platform that it is.
Its not a complaint or a rant… Just a source of conversation on a Monday…