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TOPIC: anyone has the BPF-kit ?

anyone has the BPF-kit ? 26 Mar 2017 08:51 #1

does anyone know the changes, which have to be made on the ColibriDDC board in order to make the BPF-kit work ?

Regards, Frank
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anyone has the BPF-kit ? 25 May 2017 00:03 #2

  • KP4AKB
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Where can one buy one and how much does it cost?
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anyone has the BPF-kit ? 25 May 2017 08:06 #3

:mrgreen:
You may look at sunsdr.eu/product-category/accessories/receiver-accessories/

But, beware the restricted use ( still closed at about 80% of the 30 Mhz), - besides - witch makes no sense.
Promised debug on the next ExpertSDR2 for ColibriDDC, but when will that happen ?
Playing with BPF ON and Preamp lets you enjoy a certain extra of lower noisefloor and better SNR.
Of course not in every RX situation, but often.

Rgeards, Frank
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anyone has the BPF-kit ? 25 May 2017 11:54 #4

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anyone has the BPF-kit ? 25 May 2017 14:48 #5

I did, but I preferred the Colibri BPF because :
- automatically following the RX frequency
- the preamp
and maybe the result.
There are some tiny problems, such as a sometimes oscillation when using the preamp without the BPF.
Regards , Frank
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anyone has the BPF-kit ? 09 Oct 2017 23:56 #6

  • Hermann
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PLEASE, which Resistor are soldered out? My BPF does not work!
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anyone has the BPF-kit ? 10 Oct 2017 06:17 #7

Good morning Hermann, ( german ? I could give you some links on my poblications about ColibriDDC and BPF)

of course the ColibriDDC board is enabled to works without a BPF.
Maybe you would not find a resistor at all - like I did.
On my version there is only a soldered bridge at the foot of the female connector ( on the ColobriDDC board, near the antenna input.)
You have to desolder this bridge, which is a little bit tricky. Because you must not melt the black connector !
Have a look at my photo. You may ask me if you have problems.

Best regards from Frankfurt
Frank
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anyone has the BPF-kit ? 10 Oct 2017 10:32 #8

  • Hermann
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Hallo Frank,
many thanks for the tips and pictures! :yahoo: And now it's all okay. Desoldering was no problem. And yes, i'm german.
Greatings, Hermann
Last Edit: 10 Oct 2017 10:32 by Hermann.
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anyone has the BPF-kit ? 10 Oct 2017 22:09 #9

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Please see link: "resistor was not my idea!" :wall:
sunsdr.eu/product/band-pass-filter-colibriddc/
It's painful...
Last Edit: 10 Oct 2017 22:10 by Hermann. Reason: link
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anyone has the BPF-kit ? 11 Oct 2017 06:10 #10

Good morning Hermann,

what do you mean ?
- ambitious products
but
- poor support
- even poorer software support
???
Regards, Frank
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anyone has the BPF-kit ? 11 Oct 2017 07:41 #11

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...wrong info. That's all...
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anyone has the BPF-kit ? 11 Oct 2017 09:01 #12

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...and band-borders are also wrong!
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anyone has the BPF-kit ? 28 Oct 2017 09:48 #13

:idea:
Guten Morgen Hermann,

in one of my posts here in the ColibriDDC forum I proposed / or wished that the "ExtIOColibriddc.dll" would be unpdated with the possibility to set the BPF modes like in ESDR2.

Now I found out that there is a possibility to use my favorite settings - BPF & Preamp on - while using HDSDR as Rx software.
The procedure goes like this :
- start reception on HDSDR with the ExtIO, making sure it works.
stop the reception (F2)
- start ESDR2 and activate the desired BPF functions ( you hear the relais clicking )
stop the ESDR2 without erasing it from desktop
- start the HDSDR reception button ( F2)
There you are !

Regards from Frankfurt, Frank
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anyone has the BPF-kit ? 15 Nov 2017 00:36 #14

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I now have the BPF. It arrived today and it is playing just fine. Less than 10 minutes installed. The only question was in which direction to place the board. I found a picture that shows the direction since the connectors are symmetrical. I just went to options and enabled the BPF check mark.

So far so good. .

Ed Rios
KP4AKB/W8
Columbus. Ohio
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anyone has the BPF-kit ? 29 Nov 2017 14:08 #15

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After having installed the BPF the receiver was not overloaded by adjacent broadcast (am and fm). But I was still getting some strong FM interference. I resurrected my TVI filter and since it is a 0-30MHz band pass I installed it ahead of the CollibriDDC. It seems to be helping. I do not see the base-band oscillating as before.

Ed Rios
KP4AKB/W8
Columbus, Oh
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