Search found 1017 matches

by satnipper
13 Nov 2018 16:36
Forum: Off Channel
Topic: Ideal MWDX Equipment?
Replies: 4
Views: 118

Re: Ideal MWDX Equipment?

Unfortunately this setup will not be good for MF DX. Amateur rigs attenuate the MF band in order to eliminate break-through on top band from powerful local MF transmitters. Here are your rig's AM sensitivity figures: AM (10 dB S+N/N) 0.1-0.5 MHz: 2 uV 0.5-1.62 MHz: 32 uV 1.62-24.5 MHz: 0.2 uV 24.5-3...
by satnipper
12 Nov 2018 19:40
Forum: Off Channel
Topic: SkywavesDX links are blocked on Facebook/Messenger!
Replies: 12
Views: 176

Re: SkywavesDX links are blocked on Facebook/Messenger!

Hmmm - this time links to the forum are ok on FB posts but being blocked in Messenger as Lucas says.

Once again I've requested FB to unblock. Might be useful if other people tried to pass a forum link in Messenger and then clicked through on the link provided to complain about the blocking.

Stuart
by satnipper
12 Nov 2018 19:32
Forum: Off Channel
Topic: My father died this morning
Replies: 11
Views: 184

Re: My father died this morning

Very sorry for your loss.

Stuart
by satnipper
11 Nov 2018 14:48
Forum: Unidentified?
Topic: 940 - French
Replies: 2
Views: 58

Re: 940 - French

It is still on the air - I (and others) have logged it recently:

940 CFNV Montréal QC; pops and ID “Vous écoutez CFNV neuf-quarante” W 0300 13/10 SH
by satnipper
11 Nov 2018 07:51
Forum: Off Channel
Topic: SkywavesDX links are blocked on Facebook/Messenger!
Replies: 12
Views: 176

Re: SkywavesDX links are blocked on Facebook/Messenger!

You can now also post links to this forum on a FB post.

Chalk one up for the good guys!

Stuart
by satnipper
11 Nov 2018 07:38
Forum: Off Channel
Topic: SkywavesDX links are blocked on Facebook/Messenger!
Replies: 12
Views: 176

Re: SkywavesDX links are blocked on Facebook/Messenger!

FB must have changed the blocking after I complained. I’ve just successfully sent a Skywaves link to JF through Messenger.

Stuart

Ps
Please no posts saying you don’t like FB. No one is interested.
by satnipper
10 Nov 2018 22:42
Forum: Off Channel
Topic: SkywavesDX links are blocked on Facebook/Messenger!
Replies: 12
Views: 176

Re: SkywavesDX links are blocked on Facebook/Messenger!

FB also refuses to allow you to post a link to this forum on a FB post!

I've requested a review of this via an automated response to FB and repeated my message above.

Stuart
by satnipper
10 Nov 2018 22:37
Forum: Off Channel
Topic: SkywavesDX links are blocked on Facebook/Messenger!
Replies: 12
Views: 176

Re: SkywavesDX links are blocked on Facebook/Messenger!

Hmmm - it's nothing to do with membership of the Facebook Skywaves DX group. I've just tried to FB messenger JF with the link to this thread and I get the same message. It seems as though FB does not like this Forum!!! I clicked on the link FB provides and sent them the following message "You are bl...
by satnipper
09 Nov 2018 15:25
Forum: Medium Wave & Long Wave
Topic: Barrow KBRW 680
Replies: 10
Views: 148

Re: Barrow KBRW 680

Check the Finnish DXers YT channel - https://www.youtube.com/watch?v=FuNWTEak4vM

No noise at all - this is a place to dx from! http://www.dxing.info/dxpeditions/aihki ... or_rent.dx
by satnipper
09 Nov 2018 14:28
Forum: Medium Wave & Long Wave
Topic: Barrow KBRW 680
Replies: 10
Views: 148

Re: Barrow KBRW 680

And amazingly it's not a bevearge or BOG - 70m long wire running N-S
by satnipper
09 Nov 2018 14:26
Forum: Medium Wave & Long Wave
Topic: Barrow KBRW 680
Replies: 10
Views: 148

Re: Barrow KBRW 680

Oops - it is indeed Norway. My bad - I'll edit my original post.

Thanks!
by satnipper
09 Nov 2018 11:01
Forum: Medium Wave & Long Wave
Topic: Barrow KBRW 680
Replies: 10
Views: 148

Barrow KBRW 680

Those dxers with a chance of getting Barrow KBRW 680 on their own equipment at their own QTH can check how it's coming into Europe on the Arctic SDR in northern Norway - http://arcticsdr.proxy.kiwisdr.com:8073/

It's booming in as I speak now at 11.00 UTC.

Stuart
by satnipper
09 Nov 2018 10:35
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

"I am getting NO null and adjusting the resistor makes no difference"

My guess would be you have a connector or coax problem.
by satnipper
09 Nov 2018 09:40
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

Very poor overnight again here. Yet 1548 Gold is S9 at 09.20 UTC.

Radio New Zealand is coming in well on 9765 kHz on the Flag at the moment

Stuart
by satnipper
08 Nov 2018 13:58
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

JF - it's a square relationship. A short cut calculation is to divide the turns ratio and then multiply the result by itself.

i.e. 18/6 = 3. 3 x 3 = 9. So impedance ratio is 9:1
by satnipper
08 Nov 2018 13:57
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

Some dxers use a pre-amp like Paul C in Troon but I am not a fan as I've said before about amplifying urban/suburban noise on MF. Might be worth trying one out here as the only real noise is the neighbours's electric fence clicking which the NB circuit in Perseus combats well and the Jaguar CR V4 se...
by satnipper
08 Nov 2018 13:53
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

48:11 turns ratio is 19:1 impedance ratio.
by satnipper
08 Nov 2018 13:52
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

18:6 turns ratio is a 9:1 impedance ratio - Peter gave the calculation.
by satnipper
08 Nov 2018 13:50
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

So it looks as though you have the beverage balun which I have on my Flag here. Mine works very well with it - had some good MF DX in the summer and it's working very well at the higher frequencies. I wouldn't mess with the unit as it is well sealed. This is the link for the Flag kit if you want to ...
by satnipper
08 Nov 2018 12:17
Forum: Medium Wave & Long Wave
Topic: Conditions 07/11
Replies: 45
Views: 464

Re: Conditions 07/11

I think a turns ratio of around 16:1 is about right for a flag. I have made baluns with the small BN-73-202 binocular balun with a turns ratio of 12:3 which is 16:1 impedance ratio. Presumably 800 ohm is average for the far end termination resistance. I've just checked kafa2500's description of his ...

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