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Boonton has always made some very nice equipment, I own a Boonton peak power meter that also reads CW power, down to about -70dBm and up to +10dBm, with provision for external 30dB pad via

Hello, Absolutely - just how to do this on the 82357B? Hopefully very simple, but seems not to be available on the interactive IO. Any hints would be very much appreciated! Regards, ? Staffan

Hi Ken The operating and service manual is on the Keysight web site. 73 George G6HIG

Dear All.I have a faulty HP 1703A scope, it is mains / battery operated with dual supply input, 2 channel, 10 MHz, with some sort of storage facilities, S/N 1422A 01569 made in USA. Over the years I

Just get the controller to "un-talk/un-listen" the 436, or use the GPIB low level "Go To Local" function.? It'll then un-freeze it's display. Regards. Dave B (G0WBX) -- Created on and sent from a

Hello, I can't argue against, but my only experience is that I _can_ set the instrument in the state I want (REN active) and can read the output data when I deactivate REN, but not otherwise. I have

Note also that some thermocouple power meters, such as my HP 434A Calorimetric Power Meter, can be completely calibrated with some basic equipment, such as a distortion analyzer, a 'scope, and (most

Thermocouple power sensors can be referenced to the DC volt, and as such give you a connection between AC power and the standardized DC volt. You can't do that reliably with the diode type

A bolometer is not a thermocouple sensor. What it is is a small lightbulb filament in a vacuum that is exposed to the RF power. When the filament starts to heat up, its electrical resistance starts

For sale 5086-1702 phase locked DRO 3.6 Ghz 2nd LO for E444XA (made by Elcom model S-1006A) : several units some used and tested for phase lock and power output (+2 dbm, in specs between +1 and +3),

You mean apart from the fact that they are the only truly accurate RMS RF sensors, and that all calibration is referred back to this type of sensor? David Sent: 20 November 2018 14:34 To:

Peter, it seems to be possible. This is exactly what this guy has done: (This type of sensor is also known as Bolometer,

What is the business case for thermocouple based power meters when you can get the same function with silicon at a lower price: <https://www.analog.com/en/parametricsearch/10697> One of the

Do you know the thermocouple type? And the resistor power rating? I’m just wondering if it might be possible to solder a micro thermocouple to a extra small surface mount resistor. Peter

Thermocouples with an embeded 50 ohm resistor..The 50 ohm resistor is the heater and thermocouple generates a voltage proportional to the heat gnerated in the resistor Dave manuals@...

REN should not be deactivated to take a reading. 436 must stay in Remote. I have sent you a 436A Operating and Service Manual. Read Section 3. Bill Lauchlan Sent: Tuesday, November 20, 2018

Hi Gavin I doubt that it is a dislodged connector, this sounds more like a faulty power supply. ?Switch mode power supplies are notorious for failing when being switched off, not on, as you might

Hello, Many thanks. I have been successful in all the steps you mention using the Arduino converter, but I need to activate REN for sending a command and then deactivate REN before reading. This is

Hi What are frequently called RF thermocouples are in fact three or four terminal devices with a heating element (50 Ohm or 75 Ohm resistance) with an embedded thermocouple. 73 George G6HIG

Are these thermocouples or thermistors? These are different. Glenn WB4UIV -- ----------------------------------------------------------------------- Glenn Little ARRL Technical