Purpose of RV501 on PTSR021A0X

A forum for the discussion of matters of a technical nature. All such activities are undertaken at the readers discretion and own risk. If you don't know what you are doing, don't blame us if it all goes wrong!
Post Reply
User avatar
Phuture
Super Member
Super Member
Posts: 252
Joined: 04 Nov 2012, 14:01

Purpose of RV501 on PTSR021A0X

Post by Phuture »

Looking to complete the alignment on my Westland 707 (PTBM125A0X) and I notice that the PTSR021A0X board that sits on the antenna core on the back of the SO239 in the radio is not mentioned in the service manual, nor RV501 which is a 5K preset on it. Anyone know what its purpose is and how it's set? Anything to do with trimming impedance?

Thanks
You do not have the required permissions to view the files attached to this post.
Top
User avatar
Phuture
Super Member
Super Member
Posts: 252
Joined: 04 Nov 2012, 14:01

Re: Purpose of RV501 on PTSR021A0X

Post by Phuture »

Ah I've just sussed it, it's for the SWR functionality but the question still stands on how RV501 should be adjusted?
Top
User avatar
Buick Mackane
Moderator
Moderator
Posts: 9647
Joined: 21 Aug 2012, 17:30
Location: A citizen of legoland

Re: Purpose of RV501 on PTSR021A0X

Post by Buick Mackane »

Dummy load and adjust for a SWR reading of 1.1 ?
I Am the great cornholio are you threatening me ?
Top
User avatar
Phuture
Super Member
Super Member
Posts: 252
Joined: 04 Nov 2012, 14:01

Re: Purpose of RV501 on PTSR021A0X

Post by Phuture »

Buick Mackane wrote: ↑22 Nov 2022, 09:39 Dummy load and adjust for a SWR reading of 1.1 ?
Sounds reasonable. Cheers. :thumbup:
Top
Post Reply

Return to “CB & 11m Multi-Mode Modification & Repair”