Using SDR Play with LDG tuner

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gjones
Posts: 6
Joined: Wed Jun 08, 2016 2:07 pm

Using SDR Play with LDG tuner

Postby gjones » Wed Jun 08, 2016 2:37 pm

Can I use the SDR play with an antenna tuner?
Last edited by gjones on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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gjones
Posts: 6
Joined: Wed Jun 08, 2016 2:07 pm

Re: Using SDR Play with LDG tuner

Postby gjones » Thu Jun 09, 2016 12:48 pm

Would the transmission during tuning effect the SDR play? Do other people use tuners?
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Jon_G4FUT
Posts: 4
Joined: Fri May 27, 2016 2:09 pm

Re: Using SDR Play with LDG tuner

Postby Jon_G4FUT » Fri Jun 17, 2016 6:18 pm

In the instructions I have with SDRplay it states that it should have its won antenna and this must be as far away as possible from the TX. It wouldn't take much stray Rf to blow the semi-conductors in the SDR.
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mikexeno
Posts: 59
Joined: Wed Jul 08, 2015 3:18 am

Re: Using SDR Play with LDG tuner

Postby mikexeno » Sat Jun 25, 2016 5:23 am

It takes very little RF to blow the front end of the RSP. You need at least 5-10w minimum either dead key or a CW carrier to engage the LDG tuner properly. I suggest a manual tuner if your want to zero in on signals with the RSP. You can find them used at Ham fest for $30 or online from $30-50. If you need to use your rig and the RSP together well that is a whole different beast. I would not TX anywhere near the RSP even with the antenna unplug.
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rexlee
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Joined: Thu Jul 28, 2016 8:21 am

Re: Using SDR Play with LDG tuner

Postby rexlee » Fri Jul 29, 2016 6:29 am

I am not sure if I am telling Granny how to suck eggs, but here goes anyway
The other thing to point out that "the so called antenna tuner" is NOT AN ANTENNA TUNER. The devices could/should be called an ANTENNA COUPLER or MATCHER. It's purpose is to match the impedance of a TX (or RX), to the impedance presented at the
equipment end of the feed line. It is more critical to achieve a good match in transmitting than receiving.
ANTENNA TUNING can only be achieved by adjusting the length of the antenna, something that the ANTENNA COUPLER/MATCHER cannot do.
Last edited by rexlee on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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anamaria
Posts: 1
Joined: Wed Aug 17, 2016 1:40 am

Re: Using SDR Play with LDG tuner

Postby anamaria » Wed Aug 17, 2016 1:42 am

I am looking for a good used Jupiter. For its age, it is an excellent rig
Last edited by anamaria on Thu Jan 01, 1970 12:00 am, edited 0 times in total.
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