Testing SSB transmitter with a Marconi 2955A signal generator. - UK Vintage Radio Repair and Restoration Discussion Forum

TALKINGWITHPYE · 18th Feb 2019, 3:17 pm

Hello has anyone used a Marconi 2955a to test a SSB radio, can you use the audio generator to give two tones to inject into the transmitter.

kevinaston1 · 18th Feb 2019, 6:09 pm

The 2955a variant does have two independent audio generators, but I have never tried it on an SSB radio.

Kevin

Dickie · 18th Feb 2019, 6:13 pm

Conventional folklore (wisdom?) says that the 2955A signal generator is too noisy to be any good for SSB testing.

TALKINGWITHPYE · 19th Feb 2019, 9:36 am

Thanks for your replies, I am familiar using the 2955a for fm and am but just wondered about ssb testing as I have offered a rig clinic at some local rallies. Anyway I can still test on am or fm.

18th Feb 2019, 3:17 pm	#1
TALKINGWITHPYE Pentode Join Date: Oct 2018 Location: Carrickfergus, County Antrim, Northern Ireland, UK. Posts: 126	Testing SSB transmitter with a Marconi 2955A signal generator. Hello has anyone used a Marconi 2955a to test a SSB radio, can you use the audio generator to give two tones to inject into the transmitter.

18th Feb 2019, 6:09 pm	#2
kevinaston1 Hexode Join Date: Aug 2014 Location: Featherstone, West Yorkshire, UK. Posts: 386	Re: Testing ssb with a marconi 2955a The 2955a variant does have two independent audio generators, but I have never tried it on an SSB radio. Kevin

18th Feb 2019, 6:13 pm	#3
Dickie Octode Join Date: Sep 2004 Location: St. Albans, Hertfordshire, UK. Posts: 1,478	Re: Testing ssb with a marconi 2955a Conventional folklore (wisdom?) says that the 2955A signal generator is too noisy to be any good for SSB testing. __________________ Regards, Richard, BVWS member

19th Feb 2019, 9:36 am	#4
TALKINGWITHPYE Pentode Join Date: Oct 2018 Location: Carrickfergus, County Antrim, Northern Ireland, UK. Posts: 126	Re: Testing SSB transmitter with a Marconi 2955A signal generator. Thanks for your replies, I am familiar using the 2955a for fm and am but just wondered about ssb testing as I have offered a rig clinic at some local rallies. Anyway I can still test on am or fm.