MFJ-815D Cross Needle Meter??

CB590 · Jan 23, 2019

Looking at MFJ-815D for $90 for my CB setup. Does 300w and 3K supposedly with PEP and AVG switch..

Anyone have suggestions for under or about $100 for cross cross needle model that does PEP and AVG?

I just want simple. Had a Workman 201 that supposedly did Peak but was pretty much defective out of the box and wasn't cross needle. Sent that back.

Using A99 as antenna and TS350 occasionally. With Cobra 148..

Would like this to be in line after the TS350..

w9cll · Jan 23, 2019

https://www.gigaparts.com/daiwa-swr...JSEMJQaMBdaHWPmKDPled2rGl_QXsH3QaAuniEALw_wcB

Bionic Chicken · Jan 23, 2019

Them crossed needle meters make my head hurt looking at them. Eyes try to follow both needles. Yes, there was a little bit of reflected power involved.

CB590 · Jan 23, 2019

w9cll said:
https://www.gigaparts.com/daiwa-swr...JSEMJQaMBdaHWPmKDPled2rGl_QXsH3QaAuniEALw_wcB

Says no power for meter to work, just the light? How's the PEP part work without active powered circuit?

The 815 needs either 9v or 12v..

Handy Andy · Jan 23, 2019

Ok, you're asking Simple and in the same Breath PEP and AVG...

SIGH...

There are also other considerations...

The Diawa shown, is 90 degree deflection...

Others have 120 degree - even 180 degree deflection...

It's is how "scrunched-up" you wish to have the details - some Meters also are not linear in their representation of scale.

So you have more choices to make decisions on, than you know...

CB590 · Jan 23, 2019

The MFJ815 doesn't really show below 10w to easily.. since it 300w or 3000w.. no 30w option..

The Daiwa 501H does 15/150/1500. So I could do low 1-15w for stock radio checking and then 150 in 10w increments, etc..

oldtymer · Jan 23, 2019

Have a Daiwa 501. Pretty accurate & worth the price, good bench meter for repairs and
tune ups.
My amp & tuner have meters built in & keep tabs on the real time goings on.

CB590 · Jan 23, 2019

oldtymer said:
Have a Daiwa 501. Pretty accurate & worth the price, good bench meter for repairs and
tune ups.
My amp & tuner have meters built in & keep tabs on the real time goings on.

Does the 501 require power for the PEP part or is it just a capacitor doing it?? Says 12v for light only..

oldtymer · Jan 23, 2019

From what I understand no meter can read PEP only peak power.
Peak envelope power occurs so fast that no meter could respond fast enough.
Only true way to show pep in on a scope.

CB590 · Jan 23, 2019

oldtymer said:
From what I understand no meter can read PEP only peak power.
Peak envelope power occurs so fast that no meter could respond fast enough.
Only true way to show pep in on a scope.

Does your 501 show swing at least with the PEP button on??

oldtymer · Jan 24, 2019

Yes it does but that is not pep it's peak.

338_MtRushmore · Jan 24, 2019

oldtymer said:
Yes it does but that is not pep it's peak.

I always assumed peak was pep. You just made my brain hurt

CB590 · Jan 25, 2019

Looking at Daiwa 901HP model for $139.. has 2k and tick marks on the 50's instead of the 100w gap the 501 has..

w9cll · Jan 25, 2019

Personally I use one of these -

Its acturate and very easy to read.

w9cll · Jan 25, 2019

The only time I use the meter is

a.) tuning the rig for the band( its a tubed rig and requires retuning when changing bands)
b.) tuning the antenna (if running a band I don't have a wire up for)

When actually talking I have the meter off, I only look at the ALC meter on the radio. If something should change I would see it there. I want the ALC meter to barely move when talking.

Search

MFJ-815D Cross Needle Meter??

CB590

W9WDX Member

w9cll

W9WDX Amateur Radio Club Member

Bionic Chicken

Active Member

CB590

W9WDX Member

Handy Andy

Do Your Research First, Then Decide...

CB590

W9WDX Member

oldtymer

Well-Known Member

CB590

W9WDX Member

oldtymer

Well-Known Member

CB590

W9WDX Member

oldtymer

Well-Known Member

338_MtRushmore

Sr. Member

CB590

W9WDX Member

w9cll

W9WDX Amateur Radio Club Member

w9cll

W9WDX Amateur Radio Club Member

Settings Notifications

Options