Monday, March 8, 2021

Thursday, January 14, 2021

IC-7300 USB Delay Menu Settings

Hi guys.  

Below You can find interesting info posted on EME reflector by Dave K7RWT. Might be inetersting for WSJT software with IC-7300. 

" Hello MagicEME and PNWVHFS Groups,

There is a menu setting in the ICOM 7300 that can cause a delay of about five seconds between the initiation of audio tones and RF output in WSJT. (This is NOT the milliseconds delay that can be set in the 7300 and/or WSJT-X software. ) I have read of IC-7200 users experiencing this delay when running FT8 with WSJT-X but in my case it only happened with WSJT. Since the 7300 has been around for a number of years it's possible that the RF output delay and how to prevent it is something that most 7300 owners are already aware of but in case there are those who aren't I thought it worth mentioning here.  

The cause of delayed RF output is a menu setting in the IC 7300 called "Inhibit Timer at USB Connection" which is located under "Menu > Set > Connectors > 4/4 > USB SEND/Keying > "Inhibit Timer at USB Connection" (ON or OFF, default ON). 

There is a short note about this setting in the basic 7300 manual shipped with the radio and a more detailed note about it in the full manual available on the ICOM Japan web site (I noticed there is no mention of this menu setting in the ICOM Canada web site version of the full 7300 manual.). The ICOM Japan manual can be found here:

The discussion about this setting is more comprehensive in the full manual than in the basic manual and I have excerpted and partially highlighted the information regarding RF output delay below:

"OFF: Sends the SEND or Keying signal immediately.
•ON: Pauses for a few (in my case five) seconds before sending the signal.
- If you change this setting to “OFF,” first update the transceiver’s USB driver and make sure the SEND or Keying signal will not be unintentionally sent."

I have not updated the transceivers USB driver per the last comment after turning the default "ON" setting to "OFF". The radio works fine and I have not experienced inadvertent keying of the transceiver.

Hopefully this information will be helpful to other (if any) 7300 (and possibly 7200) owners who are experiencing delayed RF output with WSJT and/or WSJT-X. 

73, Dave   K7RWT

Saturday, December 26, 2020

International Space Station "Mission 64" SSTV pics upd. Dec.31.2020

No need for complicated radio stuff, just something that will receive 145.800MHz FM mode, and ANY possible antenna, not neccesary to be 2m stuff, ofc one can use WebSDR with 2m but it's more fun to catch the pics. Tried even Baofeng UVB-6 - working good at higher ISS elevation :-)  

Here some pictures better or worse received during ISS flyby last days received on FT-817 and 7ele Yagi for 50MHz with MMSSTV software. For flyby prediction free ORBITRON soft was used but there's many tracking software on the web, and also websites dedicated to it, i.e ISSTRACKER

 Dec 26 :

  Dec 25:

 Dec 27

 Dec 28

Dec 29 - none - forgot to leave radio ON :-))

Dec 30


Dec 31 


Thursday, December 24, 2020

Merry & safe Christmas 2k20 !

For all followers and readers of my blogpage - best season greetings from me & family. 

Stay safe and healthy during these weird Covid times . . . 

73 !

Wednesday, December 23, 2020

ISS SSTV event Dec.24 - Dec.31.2020 - UPDATE

According to mentor of ARISS Poland Armans SP3QFE International Space Station event celebrating 20 Years of ham radio on ISS will start December 24th around 16UTC continously, ending December.31 around 18UTC.

Polish Radiomateurs Union (PZK) together with ARISS-Polska issued ISS SSTV Award  available to all ham radio operators Worldwide for receiving 1 (one) picture recieved during the Mission 64 SSTV event. Even partial pics counts, and after uploading it on the webpage and applying for Award one will get electronic png Award file ( as mine above ) to print.     

More info about the event, Award rules at ARISS Polska webpage.

GL all !

Monday, December 21, 2020

SILENT KEY Memorial Award

 Took a while to get results of the Silent Key Memorial Contest 2020, but happy to get nice Award. Long delayed echo of PF7M was heard across all EU. 

R.I.P Johan. 


Thursday, October 29, 2020

SILENT KEY Memorial Nov.01.2020 - update

November 1st is almost over. 

95 QSO's made on 40m CW only, during 3hours Memorial, with "PF7M"  report, making Johan's call to be heard again on the waves...  R.I.P 


       A day of remembrance, about all the folks already gone. 

No doubt all of us lost some ham radio friend, known personally, or even those never met "radio friend" always ready to talk, joking or just help. 

Some of them were daily on KST duty, giving You new one, pile-up fun on the expedition, or just sharing knowledge with You.

Hardy DC8TS/DI2BK, Johan PF7M, Arvo ES1CW to name a few... Maybe You miss your friend  worth to remember?  

Let's give their callsigns a life again. 

For 3 hours their callsigns can be heard again like sign of good memories.. 

November 1st is the best day to do it... 

Hungarian Radio Society MRASZ organizes Silent Key Memory Contest. 

Contest will start 06:00UTC, end at 08:59 UTC on 80 and 40m. 

Rules can be found HERE