Posts by do1ctl
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Hi Dave,
the best result with my various comparisons between offsetdish, patch antenna and helix feed.
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Was this better than the G3RUH feed ?
Hi Dave,
i can not compare my Dish with G3RUH, send James eMail on 13.March but no answer until today.
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18,5dB gain and 12,5W max CW power
Hi Kurt,
nice idea. Look at datasheet, 12,5W @32V.
It's not as cheap as buying a box from China.
The cost of semiconductors and PCBs are not the only thing. In addition there are costs for sockets and milled housing.
I calculate with material costs of 130 euros.
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Thanks.
Modified the input and output C down to value from datasheet, now got 10mW out and 6mW in .... the right way.
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For 2400 MHz use it needs serious modifications!!
I've done a look in the datasheet, think i have to modify the value of the input and output C's.
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9 Dollar on eBay !!
Hi, do you have a part numer or seller?
The only one i found, dont ship to Germany.
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Hi,
does anyone know this amplifier from the bay?
There it is described with 1W to 4000 MHz.
It should be a TGP3M9103 installed. I measured the amplifier with 29dbm at 1000 MHz.
At 2400 MHz I could measure almost no output power.
On the PCB a TQP7M9103 is installed. The data sheet shows the amplifier up to 4GHz. However, the specified parameters are only shown up to 1000 MHz.
Has anyone had similar experiences?
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Hi Kurt,
do you know the power consumtion of the Spectrian PA? It is a call-A PA and here i measured a current of 17A on 28V .... maybe on lower Power 10A on 28V.
Better to feed all with 48V or so and put a DC/DC converter down to 28/12V at the equipment site.
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Sorry for the misunderstanding.
Hi Jerry,
no problem. Hope to meet you on the qo100.
73 de Frank
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Hi Jerry,
you're kidding.
You compare Sucoflex104 with RG142. Seriously?
6m of RG142 on 2400MHz and two Connectors .... 6db Loss, Sucoflex104 .... 2db.
G4NRT wrote he needs 5 to 6 meter.
Ok your are right, the ECOFLEX-15 is to mutch for indoor and SUCOFLEX-104 with 6m costs about 100Euro/m.
Why not LCF14-50j ? Outer Diameter is 8mm, mount the connector without spezial tools, maybe SCF14-50 and only 1,2db loss at 5m.
Did you measure s11 with a RG cable after laying? It's terrible.
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What cable should I use between the PA3FYM dual band feed and the transverter?
I'm using Cellflex LCF14-50j for the 2,4GHz part.
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Hi Remco, Mixer is HMC213M. I reduced the Power from AD4351 with the Register R4 value down to -4db and push it with the SPF. Need no more ATT after the SPF stage.
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Yes you are right. I measured the power with a calibrated HP8485A.
I will reduce the level to 13dbm and use a second ADF4351 for 300MHz.
Thanks for your quick reply.
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Hi,
is it possible to generate two different frequencies simultaneously with the ADF4351, for example, port 1 with 1175 and port 2 with 300MHz?
My ADF4351 generates 4.5 mW and after the SPF5189z I measured 147mW. I think that's way too much power for the HMC213. The data sheet shows the mixer with + 13dbm.
Are the 5dbm for the mixer sufficient or even better put the ATT after the SPF5189z?
HW?
73 de Frank
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Hallo Wilm,
dann kann man ja problemlos den Pegel mit einem TQP3M9009 auf 20dbm anheben.
Das sollte reichen um einen WIFI Boster mit 4W (hier im Forum genug beschrieben) zu treiben.
Das alles gibts ja bei Herrn LingLing für schmales Geld.
73, Frank
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Hallo Markus,
welche Leistung steht denn am Ausgang zur Verfügung?
73, Frank