Daiwa CN901V SWR/PWR Meter for GMRS

[BobDiamond]

I have a Wouxun KG1000G+ with power supply that I am using as a GMRS base station with a Comet vertical on the roof of my house. Transceiver connected direct to the antenna works perfectly. I just put a Daiwa CN-901V SWR/PWR meter in line and the meter is not showing any output power and it seems to be attenuating both the receive and transmit signal significantly. The meter is brand new, out of the box. I checked the obvious, radio to meter input, meter output to antenna, and 13.8VDC applied to the meter. But with the radio set to 50 watts output the Daiwa CN-901V shows nothing. What could be wrong aside from a defective brand-new meter?

 

[marcspaz]

1 hour ago, BobDiamond said:

I have a Wouxun KG1000G+ with power supply that I am using as a GMRS base station with a Diamond vertical on the roof of my house. Transceiver connected direct to the antenna works perfectly. I just put a Daiwa CN-901V SWR/PWR meter in line and the meter is not showing any output power and it seems to be attenuating both the receive and transmit signal significantly. The meter is brand new, out of the box. I checked the obvious, radio to meter input, meter output to antenna, and 13.8VDC applied to the meter. But with the radio set to 50 watts output the Daiwa CN-901V shows nothing. What could be wrong aside from a defective brand-new meter?

 

 

Make sure the meter is on and on the 200w scale. (Yes, it has an off button) 

 

Also be very sure you did not mix up the antenna connection and Transmit connection. If you get them backwards, the meter doesn't move.  As mentioned above, make sure it's set to AVG and not PEP.

 

If the meter is set correctly, the next thing I would question is the coax between the radio and meter having a short.

[BobDiamond]

35 minutes ago, marcspaz said:

 

Make sure the meter is on and on the 200w scale. (Yes, it has an off button) 

 

Also be very sure you did not mix up the antenna connection and Transmit connection. If you get them backwards, the meter doesn't move.  As mentioned above, make sure it's set to AVG and not PEP.

 

If the meter is set correctly, the next thing I would question is the coax between the radio and meter having a short.

Thanks for your reply. Turns out the jumper cable has an intermittent short. And I bought that cable custom made to length using Times low loss cable from a company called ShowMeCables.com. So that will be returned to them. I located another jumper cable in my "junk box" of radio stuff and all is working perfectly now.

[BobDiamond]

57 minutes ago, Socalgmrs said:

Woxoun kg-1000,Daiwa CN-901V……  You forgot to name drop your coax…. Or give a model number to the diamond antenna 
 

 

glad I don’t worry about swr.  I just buy good antennas and run it.   I’ve got better things to do then spend time watching my swr meter.   But any one that spends $400 on a radio and another $250 on an swr meter and who knows what on an antenna has issues anyway.  I’d bet cheap coax and junky antenna has something to do with it.  
for $650 a can set up 3 50w base stations that radiate over 550w with 200mile range.  And all with no swr meter or silly questions to a stranger group of  man-queen  worshipers.  

Quote

I didn't ask for your negative comments and attitude. This is a hobby and I spend my money as I choose. The antenna is a Comet CA-712EFC and the coax is high quality low loss. The jumper had an intermittent short. I changed it out and now all is working perfectly. 

 

[WRYZ926]

WOW! someone's off their meds again.

@marcspaz gave good advice. 

[WRYZ926]

Negative Nancy AKA REEH-TARD, aka Mr 250 miles needs some serious professional medical help! 

@BobDiamond glad you figured it out and I'm sure ShowMeCables will take care of things for you.

[WSAM454]

Are you sure the jumper cable  to the meter isgood?   Can you use a double female SO-239 in place of the meter to see if things return to normal.   If they do, then something is wrong with the meter.   If not, then possibly a bad jumper cable.

[WRUE951]

the Daiwa is kind of a funky meter, Don't use the P.E.P. and try.    

[marcspaz]

@Socalgmrs why are you still here?

[WRUE951]

7 minutes ago, WRUE951 said:

the Daiwa is kind of a funky meter, Don't use the P.E.P. and try.    

couple years ago someone did a full write-up on that SWR/PWR meter here.   Do a search see if you can find...  And even though i have Socalgmrs blocked he message squeaked through,,  perhaps because I'm on my Windows Box.   Just block the idiot and don't pay any attention to Negative Nancy..  That's what we call him 

[WRXB215]

On 5/24/2025 at 12:13 PM, marcspaz said:

@Socalgmrs why are you still here?

That's a very good question and I doubt any human on earth can answer it.

[Socalgmrs]

Woxoun kg-1000,Daiwa CN-901V……  You forgot to name drop your coax…. Or give a model number to the diamond antenna 
 

 

glad I don’t worry about swr.  I just buy good antennas and run it.   I’ve got better things to do then spend time watching my swr meter.   But any one that spends $400 on a radio and another $250 on an swr meter and who knows what on an antenna has issues anyway.  I’d bet cheap coax and junky antenna has something to do with it.  
for $650 a can set up 3 50w base stations that radiate over 550w with 200mile range.  And all with no swr meter or silly questions to a stranger group of  man-queen  worshipers.