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Re: 6cm rf?
Ben
As an addendum to Mark's analysis we were looking at Skyworks parts for a commercial application requiring +32 dBm CW continuous. We looked at the SKY66293 and SKY66318 which have very similar
Ben
As an addendum to Mark's analysis we were looking at Skyworks parts for a commercial application requiring +32 dBm CW continuous. We looked at the SKY66293 and SKY66318 which have very similar
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By
Dave G8KHU
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#62624
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Re: Hi Speed Comparator operation
Hi Rich,
there were a couple of mistakes on the PCBs depending on the version.
All from memory, and still waking up this morning !
Missing ground on the little 5v regulator.
O/P from the op amp to
Hi Rich,
there were a couple of mistakes on the PCBs depending on the version.
All from memory, and still waking up this morning !
Missing ground on the little 5v regulator.
O/P from the op amp to
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By
David GM6BIG
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#62623
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Re: Adalm Pluto Revision D
Very nice.
I have a modified Pluto (Thanks to DD1US who did the mod) and feed it with 40MHz from a dual Leo Bodnar unit.
Simon Brown, G4ELI
https://www.sdr-radio.com
Very nice.
I have a modified Pluto (Thanks to DD1US who did the mod) and feed it with 40MHz from a dual Leo Bodnar unit.
Simon Brown, G4ELI
https://www.sdr-radio.com
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By
Simon Brown
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#62622
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Re: 6cm rf?
Ben
160 C junction temperature is pretty standard for this technology, the data that is missing is the thermal resistance, junction to case measured in C/W, and power added
Ben
160 C junction temperature is pretty standard for this technology, the data that is missing is the thermal resistance, junction to case measured in C/W, and power added
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By
Mark GM4ISM
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#62621
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Re: Dish Mesh information
Thanks to John API and ZTR for your advice - It seems I do have a sectional dish available to me which I hope despite the age will give one or two of us on the Island access to EME on the likes of
Thanks to John API and ZTR for your advice - It seems I do have a sectional dish available to me which I hope despite the age will give one or two of us on the Island access to EME on the likes of
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By
Mike GD6ICR <gd6icr@...>
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#62620
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Re: 6cm rf?
Hi Ben,
Have you looked at the FPV booster amps for drones?, i used these on 5.8 GHz Analogue ATV from memory they use
a pair of devices and achieve 4 Chinese watts
cheers
Geoff
GI0GDP
Hi Ben,
Have you looked at the FPV booster amps for drones?, i used these on 5.8 GHz Analogue ATV from memory they use
a pair of devices and achieve 4 Chinese watts
cheers
Geoff
GI0GDP
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By
geoffrey pike
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#62619
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Adalm Pluto Revision D
I received an Adalm Pluto today from Digikey which is revision D. This revision has clock in and out connectors and also RX2/TX2 wired out. All four ports are provided through u.fl sockets on the
I received an Adalm Pluto today from Digikey which is revision D. This revision has clock in and out connectors and also RX2/TX2 wired out. All four ports are provided through u.fl sockets on the
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By
Mark G6DDX
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#62618
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Re: 6cm rf?
The data sheet from Skyworks does not give any thermal info and it may be that key down CW at 2W will overheat the junction.
160deg C Mark.
. if they work as advertised. If they
The data sheet from Skyworks does not give any thermal info and it may be that key down CW at 2W will overheat the junction.
160deg C Mark.
. if they work as advertised. If they
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By
militaryoperator <Military1944@...>
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#62617
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Re: 6cm rf?
Ben
Both seem to use the same output device
The device is designed for wideband data modes at 400mW. This requires high linearity, hence the typical single tone P1db of 34dBm (min
Ben
Both seem to use the same output device
The device is designed for wideband data modes at 400mW. This requires high linearity, hence the typical single tone P1db of 34dBm (min
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By
Mark GM4ISM
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#62616
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Re: Norton Amplifiers
That looks very useful Neil but a bit too much gain.
I am glad that you weren't dreaming because to dream of such things would be a little, dare I say, odd?
73
Conrad
That looks very useful Neil but a bit too much gain.
I am glad that you weren't dreaming because to dream of such things would be a little, dare I say, odd?
73
Conrad
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By
Conrad, PA5Y
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#62615
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Re: Hi Speed Comparator operation
https://www.analog.com/media/en/technical-documentation/data-sheets/lt1016.pdf
Op 20-5-2021 om 15:18 schreef Rien Eradus PA0JME via groups.io:
https://www.analog.com/media/en/technical-documentation/data-sheets/lt1016.pdf
Op 20-5-2021 om 15:18 schreef Rien Eradus PA0JME via groups.io:
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By
Rien Eradus PA0JME
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#62614
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Re: Hi Speed Comparator operation
A bit further datasheet shows
Input Impedance and Bias Current
Input bias current is measured with the output held at 1.4V. As with any simple NPN differential
A bit further datasheet shows
Input Impedance and Bias Current
Input bias current is measured with the output held at 1.4V. As with any simple NPN differential
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By
Rien Eradus PA0JME
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#62613
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Re: Hi Speed Comparator operation
Hi I am not familiar with both devices but took a glance at de 1016's datasheet. It tells me that inputbias current is about 10uA. If Vss is at ground there can be no bias current at all
Hi I am not familiar with both devices but took a glance at de 1016's datasheet. It tells me that inputbias current is about 10uA. If Vss is at ground there can be no bias current at all
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By
Rien Eradus PA0JME
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#62612
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6cm rf?
5G-6GHz One-Way Microwave RF Power Amplifier Module 40DB SBB5089+SE5004
( 114749899192 )
SE5004 1W Microwave Power Amplifier RF Power Amplifier 5.15GHz-5.85GHz 30DBm
( 114556927546 )
Did anyone try
5G-6GHz One-Way Microwave RF Power Amplifier Module 40DB SBB5089+SE5004
( 114749899192 )
SE5004 1W Microwave Power Amplifier RF Power Amplifier 5.15GHz-5.85GHz 30DBm
( 114556927546 )
Did anyone try
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By
militaryoperator <Military1944@...>
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#62611
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Hi Speed Comparator operation
I have built a couple of W1GHz projects: a GPS locked 10MHz osillator and a 100MHz PLL board. Each of his circuits uses a LT1116 hi speed comparator to lift the oscilator signal up to 5V CMOS logic
I have built a couple of W1GHz projects: a GPS locked 10MHz osillator and a 100MHz PLL board. Each of his circuits uses a LT1116 hi speed comparator to lift the oscilator signal up to 5V CMOS logic
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By
G8ZHA
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#62610
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DF9IC 1296 amplifiers
I built eight DF9IC 23 cm amplifiers. Six worked well and we are enjoying the expanded 1296 activity but one got destroyed with a mistake that resulted in a spectacular arc and the other got
I built eight DF9IC 23 cm amplifiers. Six worked well and we are enjoying the expanded 1296 activity but one got destroyed with a mistake that resulted in a spectacular arc and the other got
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By
Dennis Sweeney
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#62609
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Re: Wavelab 23 GHz connector and PSU PCBs avaialble
I've just assembled my Wavelab 23GHz PSU/Connector boards, just wondering about heatsinking for the 3 large regulators.
The underside of the board has the solder resist cleared, and I thought I'd read
I've just assembled my Wavelab 23GHz PSU/Connector boards, just wondering about heatsinking for the 3 large regulators.
The underside of the board has the solder resist cleared, and I thought I'd read
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By
Steve G4KNZ
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#62608
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Re: Norton Amplifiers
Note dreaming after all. Phew. This is the Appnote I vaguely recalled. Looks like it is about the ZRL-700+ (and the other models)
https://www.minicircuits.com/appdoc/AN60-039.html
Neil G4DBN
Note dreaming after all. Phew. This is the Appnote I vaguely recalled. Looks like it is about the ZRL-700+ (and the other models)
https://www.minicircuits.com/appdoc/AN60-039.html
Neil G4DBN
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By
Neil Smith G4DBN
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#62607
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Re: Norton Amplifiers
Could you be referring to the HELA10B dual monolithic amplifier? I have a pair of these on my 2-channel adaptive EME system. They are there to overcome splitter losses and give a bit of extra gain for
Could you be referring to the HELA10B dual monolithic amplifier? I have a pair of these on my 2-channel adaptive EME system. They are there to overcome splitter losses and give a bit of extra gain for
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By
Conrad, PA5Y
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#62606
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Re: Norton Amplifiers
I seem to recall seeing the layout of a Minicircuits amp that used hybrids and paired amplifier chains. One of the benefits siuggested was that if one leg of the amp died, the other would carry one
I seem to recall seeing the layout of a Minicircuits amp that used hybrids and paired amplifier chains. One of the benefits siuggested was that if one leg of the amp died, the other would carry one
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By
Neil Smith G4DBN
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#62605
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