Ranger RCI-2970 N2 (Outputing 400 Watts PEP on SSB)

The place to talk about specific radios, equipment and accessories. Do you prefer the latest generation of rigs and antennas or do you like the classics? Discuss it here!
Post Reply
minon
Regular
Regular
Posts: 17
Joined: 29 Aug 2016, 10:25

Ranger RCI-2970 N2 (Outputing 400 Watts PEP on SSB)

Post by minon » 10 Aug 2018, 09:48

I recently got a Ranger RCI-2970 N2 from an eBay auction and apart from the usual scrapes on the sides from the bracket it is working fine.

I ran it on several analog and digital meters to determine the power on all modes, what I discovered is a little strange.

1.) On SSB, it is putting out 420Watts Forward Power and around 2 Watts reflected power, into my President Himalaya WB and also similar into my 1000 Watt Dummy load.
2.) On FM, it produces around 120 Watts
3.) On AM, it swings to around 350 Watts.

I have used the MFJ- 826B ( and have calibrated it) and also the Daiwa CN901HP to get these measurements.

I have yet to open the radio but one thing I did notice to the rear is a switch, which I am guessing is to turn the amp off as with it off it is around 4 Watts on FM and around 20 Watts on SSB.

I have heard of people getting an N4 board put in, does anyone know how this could be identified and if it does not have this board what could the reason be for such a large amount of power ?

Also note on full power this draws around 42 Amps from my PSU.

Regarding audio, I have tested this and there is no distortion, splatter or any problems, whilst testing via a stream from another operator around 5 miles away.

User avatar
The Collector
Veteran
Veteran
Posts: 4768
Joined: 23 Jan 2010, 19:26
Location: Bristol-ish

Re: Ranger RCI-2970 N2 (Outputing 400 Watts PEP on SSB)

Post by The Collector » 11 Aug 2018, 12:09

If it wasn't for the fact you say it's drawing soooo many amps, I'd think you were looking at the wrong power scale ;)
It's beyond me (although most things are!).

User avatar
sickboy
Radio Addict
Radio Addict
Posts: 538
Joined: 09 May 2016, 23:07
Location: Scotland

Re: Ranger RCI-2970 N2 (Outputing 400 Watts PEP on SSB)

Post by sickboy » 11 Aug 2018, 17:57

I've no idea but noticed on another site there's someone selling a Ranger rci 69ffb4 which also does 400w. Could be a similar board used?
Embrace your inner muppet !

User avatar
superstar
Veteran
Veteran
Posts: 2671
Joined: 10 Sep 2007, 14:06
Location: Hillbilly county, Lowestoft Suffolk

Re: Ranger RCI-2970 N2 (Outputing 400 Watts PEP on SSB)

Post by superstar » 15 Aug 2018, 15:29

yep it’s normal, ive got a ranger rci ffc2 which is half the power of your model
Buying and hoarding CB radio's is an illness
Cb handle
1980-1993, "AL Capone"
1993-present, "Superstar"
occupation-running a retirement home for elderly cb radios
Fozzy Bear dont care ya know, so er thats the story!

Post Reply

Who is online

Users browsing this forum: Google [Bot] and 5 guests