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Low Cost SPECTRAN V6 PLUS (2x40MHz RTBW | 9kHz-8GHz)

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In addition to the upcomming SPECTRAN V6 ECO we are working on a new low cost SPECTRAN V6 PLUS offering a dual receiver design with a RTBW of  around 40MHz-50MHz each, a frequency range from 9kHz to 8GHz and an optional Tx (within the same frequency range).

The look and feel of the new SPECTRAN V6 PLUS and the full RTSA-Suite PRO Software support will be 1:1 as for the regular SPECTRAN V6 series.

Besides the regular hardware options like "GPS", "OCXO" "Preamplifier" and "Memory Expansion", we will add a new hardware option "Powermeter" with up to 70dB dynamic within the full 8GHz frequency range.

Starting price should be around 2500 Euros for the basic version.

Sofon, Brain Chi and 3 other users have reacted to this post.
SofonBrain ChiHashSethvjuhasz

Attached the final Front-End PCB layout from the SPECTRAN V6 PLUS (9kHz to 8GHz with 2x50MHz RTBW + 50MHz Tx):

SPECTRAN V6 PLUS PCB

Some questions re the SPECTRAN V6 PLUS:

  1. How does it behave in the DC - 9 KHz range; can be used to measure signals in that range?
  2. Can be used to measure magnetic signals with a magnetic antenna?  Some Aaronia antennas measure down to 1 Hz.
  3. If I want to measure very small geomagnetic field variations in real time, what setup would you recommend?
  4. Will these PLUS units offer a better sensitivity at low frequencies than exiting V6 units? In other words, were there hardware improvements made to the PLUS units in comparison to the original V6 units?

Many thanks. 🙂

How does it behave in the DC - 9 KHz range; can be used to measure signals in that range?

Yes it can operate down to DC just some more NF to be expected simply an issue of the input capacitor. 9kHz is marketing only...

Can be used to measure magnetic signals with a magnetic antenna? Some Aaronia antennas measure down to 1 Hz.

Yes but be sure to use an antenna with 50 Ohms otherwise you need to add a high impedance amplifier to get the full antenna sensitivity (which we offer).

If I want to measure very small geomagnetic field variations in real time, what setup would you recommend?

There is no special setup needed. Adjust your POI and RBW as needed and thats it.

Will these PLUS units offer a better sensitivity at low frequencies than exiting V6 units? In other words, were there hardware improvements made to the PLUS units in comparison to the original V6 units?

Yes since we use a own ELF/ULF path with a special nlow noise ADC which offers tons of higher sensitivity in that range compared to the actual SPECTRAN V6 version.

 

 

 

 

Thank you very much.

Would be possible to post a screenshot of the frequency response of the PLUS unit in the DC to 100 KHz frequency range?

What is the noise floor of the PLUS units in the ELF/ULF band? Can the frequency response be optimized (and the noise floor reduced) by better calibration?

From factory, will you calibrate these units down to DC or only to 9 KHz?

The included optional TX generator will work from 9 KHz or will be able to go lower than that?

Would it be possible to post a screenshot of the frequency response of the PLUS unit in the DC to 100 KHz frequency range?

As soon as the proto is running.

What is the noise floor of the PLUS units in the ELF/ULF band? Can the frequency response be optimized (and the noise floor reduced) by better calibration?

We will see when the proto is running

From factory, will you calibrate these units down to DC or only to 9 KHz?

Yes we will calibrate them, optional, down to "DC".

The included optional TX generator will work from 9 KHz or will be able to go lower than that?

100% same with the Tx so down to "DC".

 

 

 

Thank you.

What are the (planned) key differences between the SPECTRAN V6 ECO vs PLUS models? In what key specs they differ?

Will you consider making this an add-on for existing V6 users/units, possibly with a block (HF) up converter?

HF is traditionally VERY difficult to operate optimally in, requiring great care in the front end design (i.e components/shielding).  The PCB layout looks like it has good trace design; possibly consider enclosing this block in a "tin can" to help with stray fields.

With this capability comes lots of potential new SW blocks to address HF specific signals.

Will you consider making this an add-on for existing V6 users/units, possibly with a block (HF) up converter?

No, this will be a completely new generation of devices.

What are the (planned) key differences between the SPECTRAN V6 ECO vs PLUS models? In what key specs they differ?

The ECO will be limited to a single Rx with 50MHz RTBW, the PLUS will offer 1 Rx (or 2 Rx) plus 1 Tx and a bigger RTBW (100MHz or 2x50MHz).

vjuhasz has reacted to this post.
vjuhasz
Look forward to it, especially purchasing only a PCB for an end-user.
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