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Loggings => Shortwave Pirate => Topic started by: ~SIGINT~ on January 11, 2022, 0353 UTC

Title: RADIO X 6940 AM 0350 UTC 11 JAN 2022
Post by: ~SIGINT~ on January 11, 2022, 0353 UTC
RADIO X 6939.400 kHz AM 03:50 UTC 11 JANUARY 2022

Post from Broadcast Announcements:
https://www.hfunderground.com/board/index.php/topic,91510.msg292492.html#msg292492 (https://www.hfunderground.com/board/index.php/topic,91510.msg292492.html#msg292492)

03:50 UTC - Nothing heard at this time from my location.
03:56 UTC - Weak and unreadable via the HFU 120 ft T2FD KiwiSDR. Agree, this is a poor choice of frequency due to the LINK 11 UTE on 6942.0 kHz.


RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
Title: Re: RADIO X 6940 USB 0350 UTC 11 JAN 2022
Post by: outhouse radio on January 11, 2022, 0354 UTC
not a good choice of freq
but
can hear a few words at times under the thing that is always there
not enough to understand anything
Title: Re: RADIO X 6940 AM 0350 UTC 11 JAN 2022
Post by: RexFeral on January 11, 2022, 0442 UTC
Good Evening,

It is a CW transmission.   
I am currently "rock bound" to 6940, it is the only crystal I have on hand at the moment that is in the 6920 - 6990 range.
The xmtr is a GRC-109 putting about 10 watts into a 100' wire up about 20'.

Rex
Title: Re: RADIO X 6940 AM 0350 UTC 11 JAN 2022
Post by: outhouse radio on January 11, 2022, 0458 UTC
Good Evening,

It is a CW transmission.   
I am currently "rock bound" to 6940, it is the only crystal I have on hand at the moment that is in the 6920 - 6990 range.
The xmtr is a GRC-109 putting about 10 watts into a 100' wire up about 20'.

Rex

ok
never heard any cw with the link 11 there , but there was voice there ..
-
study up on crystal grinding , and then try your hand at grinding it up to a usable freq..

Title: Re: RADIO X 6940 AM 0350 UTC 11 JAN 2022
Post by: RexFeral on January 11, 2022, 0507 UTC
I've tried crystal grinding before but never had much luck.  I'm going to double check my xtal stash.  I have quite a few that are in the 4000 - 5000 kHz range, I may have one in that range that would work.  Can always check on "fleabay" too :D

Rex
Title: Re: RADIO X 6940 AM 0350 UTC 11 JAN 2022
Post by: outhouse radio on January 11, 2022, 0523 UTC
i used to grind them dry on a flat diamond steel (knife sharpener) and wipe down with alcohol ..
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don't know if anyone followed up on this ---
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This was a question on the Mil Surplus mailing list:
Has anyone tried using the GRC-109 on AM ?  I notice its cathode keyed  though the osc and pa are keyed together. I further notice that the 10 pin keyer  socket with its plug shorts the osc and pa cathode together, so, using another  plug one could ground the osc cathode separately while then cathode modulating  the pa. Also, on the same plug the pa screen volts are accessible, so the pa  could be screen modulated.
 Has anyone tried this ?
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hell - i had to look the rig up on the net to refresh my memory of what it is - got one or two in my collection of mil stuff along with tons of other various things
Title: Re: RADIO X 6940 AM 0350 UTC 11 JAN 2022
Post by: redhat on January 11, 2022, 0539 UTC
73 meters would be a much better choice this time of the night.  With the proliferation of cheap DDS kits on ebay, ditch the rocks.  Much better frequency stability and infinite frequency choices.

BTW if this is to turn into a technical discussion, it should probably be moved to the workbench forum.

+-RH