Transmission1

Good day all,

I have a fairly well taken care of 2955A. I plan on using it to do test/repair/alignment. But.. I failed to recognize the fact that it does NOT facilitate SSB. I do know there is a work around (1kz up or down for LSB or USB and 0% Modulation). Is there anything else I could or should be doing? Any accessories I should look into (attenuators, or cabling)? Also, the N Connector that usually says 75w max as a sticker on it that says 100w Max. I'v never seen this before, has anyone else?

Thanks a ton

Here is a photo of the 100W sticker,
I have a radio (set to 10w) connected to the N connector... and I notice a few things.

- First : the SWR is threw the roof
- Second : The 2955 shows only 9mw
- Lastly : When I do a self test, the audio cracles for a few of the tests.

is my 2955 screwed? or am I just not doing things correctly?

Did you already have a look into the manual?

I've got to be honest - it doesn't sound good. I have a 2965 (not the 2955) and it's pretty much select the right input, select Tx test, connect radio, transmit and measure power etc.

It's been a while since I've used one . Don't these have a self test function ?

Yes I read the manual.

It displays the right Freq when I tx into it. So it's still passing the signal threw, I'm just wondering if I have configured something wrong.

It does have the self test feature. I will have to look deeper into that.

Hotwire wrote: ↑14 Oct 2020, 00:56
I have a radio (set to 10w) connected to the N connector... and I notice a few things.

- First : the SWR is threw the roof
- Second : The 2955 shows only 9mw
- Lastly : When I do a self test, the audio cracles for a few of the tests.

is my 2955 screwed? or am I just not doing things correctly?

Would suspect the cable between the Macaroni and the radio on test...
From memory the audio crackles during Self Test.

Mike

May be a daft question but you pressed the blue button labelled TX before starting your measurement?

Andreas DF2TB

They default to Reciver test at switch on.

You select tx function.

If no power meter after that the attenuators blown probably

self test noises is normal..
on the power and SWR double check the N type connection, they have to be just right..
if mines not just tight enough but not too tight it fails to read.

also if it's been stood a while work the relays a few times,press the N and BNC selector a few times to clean the relay.
lastly, give it time to warm up, 15 minutes usually..