Reflectometer Eureka E620: Exploring Frequency Range and General Usage Guidelines

Hello, I am looking for more information about this equipment, i.e. on what frequency range it works and how to use it generally.
Best wishes and thank you for answering.

Exactly, as the previous speaker wrote. I own such a reflectometer myself and it works very well. If you acquire it, let me know and I will include the scanned documentation for it. There is only one note - if you buy a calibrated one, then you will have a big problem. I gave my device for calibration in the last days of the manufacturer's existence (Eureka - Warsaw).

Hello, thank you for replying to my post equipment I already have at home only I need to replace the aerial sockets, I think it should not be calibrated.

I do not advise you to replace the aerial sockets, and I suggest you use branded adapters. My colleague has had special reductions to mount UC-1 sockets directly on the measuring head. And the ass came out, because these nests introduce their own SWR of 1.2 on VHF frequencies and UHF is already completely sneeze.

The Eureka E620 is a bridge and not a linear finder, so after each change of the smallest element in the coupler module it is necessary to rebalance and calibrate the indications. The smallest changes in the indications are after replacing the sockets from C50 to N50. However, you should count on misrepresentations.

During the calibration of the meter I talked to a service technician from Eureka. Exactly as the previous speaker wrote, only the original manufacturer's slots provide high accuracy, as I learned.
I bought an additional 2 sets of connectors - N socket / plug and BNC socket / plug. C-50 I had in my set. It was expensive, but it's worth it.
Or maybe their trustee has to sell for pennies?

Hello everyone, I have such a question regarding the RM-3401 reflectometer where I can get such plugs and one socket, unless the C-50 marking on the cable as a colleague wrote I do not want to rework these original sockets only to make such extensions already on a typical bnc plug

Moderated By c2h5oh:

Regulations, clause 3.1.19. It is forbidden to publish entries in archival discussions.

In addition, hooking up to someone else to save a few points is not welcome. Read:
https://www.elektroda.pl/rtvforum/topic1725727.html

Archival topic, but I will answer. What is written a few years ago is unfortunately still valid.

It is not possible to insert a BNC socket for this reflectometer, unless you have very expensive Telegartner service sockets, based on socket sizes C50 / N50.

With the C50 sockets and plugs is a problem, because it is very difficult to get them, they are practically out of use. The only advice is to start an N50, but it must be done really well.
With N50, there are factory adapters for any type. Even 7/16 or EIA.

Thanks for answering if I get a plug and a C50 socket on the cable, can I finish it with a socket and a bnc plug (typical) crimped on a cable, eg H-155 or are there any specific lengths of these wires? as far as the whole plugs are concerned, I found something like this. Manufacturer: Telegärtner NF PANEL CONNECTOR collar 25.4mm typical or these dimensions will be ok

If you have this reflectometer on hand, unscrew one of the original sockets from the measuring head. See how it is made and compare with this sketch what you have posted. The conclusions will be the same whether it will fit.

Yes, I only do not want to interfere in the head for the time being, do these sockets in the head are pressed or soldered to the other side of the head?

Added after 3 [hours] 18 [minutes]:

Already everything is clear, the sockets are in very good condition, I do not know if I will get such nests anywhere

Unfortunately, EUREKA for the needs of the reflectometers of this series produced its own sockets, differing in dimensions from the standard. A colleague solved this problem by using a puck made of aluminum plate with a thickness of about 2-3 mm. He fastened the socket on short screws to this plate, and then he screwed the plate tight with screws screwed into the holes in the original slot. For the "hot" solder contact in the socket he added something very similar to the shape of this element as in the original slot. He sawed it with a needle from a piece of brass rod. A bit of precision work with it, but it came out elegantly.

My friend sp5wcx if I got a C-50 plug and a cable socket, can I make such transitions to eg bnc sockets crimped on the h-155 cable or will there be any losses?

I only saw C50 plugs on a thick cable. Make short N adapters with a good quality cable and it should be ok.