Search found 70 matches

by sdrom33
Mon Apr 22, 2019 7:53 pm
Forum: General
Topic: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz
Replies: 34
Views: 1140

Re: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz

Think with your own head, do not believe in false prophets, trust what you measure and see...I have gone to walk the dog...take it easy.
by sdrom33
Mon Apr 22, 2019 7:46 pm
Forum: General
Topic: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz
Replies: 34
Views: 1140

Re: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz

Funny is, I installed and MFJ SDR-switch the other day, the RSP1A's have the same signal as before, but the Icom7300 dropped by 10~20db in reception. Why did the Icom drop and the RSP1A's didn't? Bas, it is the rsp1a magic....It receives better because it has no mixers... : :oops: In fact where Sdr...
by sdrom33
Mon Apr 22, 2019 7:35 pm
Forum: SDRplay related
Topic: 75/50 ohm for RSP1a connection
Replies: 2
Views: 56

Re: 75/50 ohm for RSP1a connection

For FM signals are generally so strong you can take the mis-match loss between 50 and 75 Ohm and safely connect the antenna to the rsp receiver. Remember though that it should be advisable to have some protection in between, should you have lightning nearby and related induced transients. A small ch...
by sdrom33
Mon Apr 22, 2019 7:29 pm
Forum: General
Topic: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz
Replies: 34
Views: 1140

Re: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz

The right reply is that nobody in his senses would use a 50 Ohm connector on a 75 Ohm coax....come Mike, stop this nonsense and have a peaceful Easter, :D
by sdrom33
Mon Apr 22, 2019 7:02 pm
Forum: General
Topic: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz
Replies: 34
Views: 1140

Re: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz

Hi Mike, in the same sentence you say that in the spec SRDplay states for "Connectivity" e.g. "input" is: "single 50 Ohm RF connector" and then you say that 50 Ohm has not been specified? Next time you are going to tell us about flying horses? In the same vein then Sdr ...
by sdrom33
Mon Apr 22, 2019 6:43 pm
Forum: General
Topic: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz
Replies: 34
Views: 1140

Re: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz

Bas, First I asked you to state what splitter you were using, so you could find in the forum somebody that could help you sort out your problem, you did not even reply on the point, sure you know it all already & you do not need any advice. My dear Sir, electronics is science, radio communicatio...
by sdrom33
Sun Apr 21, 2019 9:46 am
Forum: SDRplay related
Topic: Metal Case for RSP1A
Replies: 4
Views: 221

Re: Metal Case for RSP1A

Some time ago I saw boxes for the rsp1a sold on eBay, try there.
by sdrom33
Sun Apr 21, 2019 9:44 am
Forum: General
Topic: LOW PASS FILTER FOR OPTIMUM LOW FREQUENCY RECEPTION
Replies: 17
Views: 3742

Re: LOW PASS FILTER FOR OPTIMUM LOW FREQUENCY RECEPTION

Hi glovisol, the filter looks good, but in the response pics I see glitches that look like signals to me. Shielding does not look so good even if you use a metal box
by sdrom33
Fri Apr 19, 2019 5:54 pm
Forum: General
Topic: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz
Replies: 34
Views: 1140

Re: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz

What do you mean wrong info and specs? It's not a transmitter but a receiver, as such impedance isn't crucial to good workings. Exactly what I wrote. The official published specifications by Sdrplay say: 50 Ohm input impedance. If you write in so many words it is not so, you are being unfair to Sdr...
by sdrom33
Thu Apr 18, 2019 6:04 pm
Forum: General
Topic: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz
Replies: 34
Views: 1140

Re: 3 dB HYBRID COUPLER/ISOLATOR FOR ANTENNA SPLITTING 100 KHz -10 MHz

It could help to know what splitters you are using. The RSP1a input is rated 50 Ohm, why should it be different? Why should sdrplay give wrong info & specs?

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