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Was sort of like this http://boxen.math.washington.edu/home/kirkby/85032B/all-parts-of-85032-60012.jpg though for 3.5 mm, not N as in this diagram? My own 3.5 mm kit does not have anything like

On "missing parts": some opens(mostly early, and I'm specifically thinking of APC 3.5 connectors) consisted of a body having no center conductor attached, plus an insertable center conductor on a

Thanks again, I've downloaded the manuals on most of the HP DMM's from that era. I'm now looking at the 3456 or 3457. I've got some prices on a cal and yes around $140 should do it for a NIST

I meant "gold plated metal", not "gold played meter" Dave

I treat buying gear much like a trip to Vegas, I save up a few dollars and enjoy myself knowing full well that I'm wasting money. In the end it's not what you pay, it's how much you enjoy the

Thanks, I guess I will have to just keep looking. For $50 I would love to have one of these, or one of its sister units. And being in Los Angeles, there is always a likelihood I can find one that

Merry Christmas If you have not calibrated the VNA, then you are just seeing the uncorrect performance, and the fact that varies is no surprise. In fact, I'm a bit surprised you managed to get 35 dB

A 30 dB return loss is nothing to sneeze at. -John =====================

Correction! We are seeing this with a good load attached, no calibration. Same load gives different curve for each port. I would expect the reflected power to be much lower than -30 dBm. Of course

I am not sure I understand this. Is the output of the generator varying or is the indication on the power monitor varying? I think its possible that weak tubes, especially the buffer and

It also fits nicely in a suitcase... :) -- Anders Gustafsson Engineer, CNE6, ASE Pedago, The Aaland Islands (N60 E20) www.pedago.fi phone +358 18 12060 mobile +358 40506 7099 fax +358 18

Merry Christmas all! My friends and I have been comparing what we see from the S Parameter Test Set on the two ports. These tests are with the VNA uncalibrated and with proper opens or shorts (even

You're welcome, and all, enjoy the holidays. It may pay to download the 1993 HP Catalog, that was the last year all in the 345x line were available for sale, so you can compare and contrast the

eBay, if you're in no rush, patience is rewarded by cheap buys. I've tracked 3456a prices on eBay for 4 years, and the price I posted are ranges I've found. The killer is often S&H, as its a wide

Purchased some extra NOS Belden power cords for the older HP equipment a while back, offering some for sale as I will probably never need this many. $12/ea including shipping within the conUS, or 5

A DC measurement across the output connector should show infinity, which is a good sign, as it shows that neither the 2 caps. nor the coax-cable are shorted. The caps. are in series with the pick-up

This is a common failure when someone using the 608 to test a transceiver accidentally transmits into the 608. Use of the HP-11509A Fuseholder will prevent such failures. Jeremy N6WFO

/snip/ I was contacted by one of the readers of this thread who pointed me to a pdf manual

I have to say this response has really given me the most food for thought. It provided exact details about the models and the pro's and con's of each. It also made me realize something important.