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Questions tagged [equipment-troubleshooting]

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0
votes
2answers
206 views

Yaesu FT-817 Won't transmit Dig, SSB or CW

I have a problem with my Yaesu FT-817 it Won't transmit Dig, SSB or CW, But it does transmit AM, FM and Pkt on all bands. Does anyone know what the problem might be. The Radio receives fine on all ...
4
votes
2answers
397 views

Yaesu FT-991A: FM and C4FM modes don't work on HF bands

I bought a second-hand Yaesu FT-991A. It works pretty well and by the look of it's internals I don't believe it was ever repaired. However I noticed one weird thing. When I try to use FM or C4FM on ...
4
votes
1answer
67 views

Kenwood TS 520 S Meter accidentally run without an antenna connected

I powered up my Kenwood TS 520 without connecting the antenna and after 1 hour realized it was not connected, after connecting the antenna I noticed the S-meter was not giving me a reading and I have ...
0
votes
1answer
87 views

Problem with Baofeng BF-888 radios

I have 2 Baofeng bt-888 radios coming out of the box. The problem is that the radios still growl on all channels and the light stays green. Le Griche stops when we send a communication or when we ...
10
votes
2answers
4k views

How do I troubleshoot a Baofeng UV-5R that won't receive?

I have a couple of Baofeng UV-5R radios. I have a profile in Chirp that works great on one of them, and I foolishly pushed that profile straight over to a UV-5R without checking firmware versions. ...
1
vote
2answers
59 views

FT-450D not transmitting with microphone

I've been using FT8 on my Yaesu FT-450D for quite some time. I decided to try to talk on phone frequencies and discovered neither one of my mics will transmit. My mics are the original hand mic and a ...
0
votes
1answer
60 views

Kenwood TH-F7E power supply troubleshooting

I have a Kenwood TH-F7E handheld transceiver, bought second-hand a bit less than a year ago. Until about 3 weeks ago, it worked perfectly, then I put it in a drawer and didn't touch it until yesterday,...
2
votes
1answer
151 views

Simple AM Radio Troubleshooting

I just got all the parts to make a simple AM transmitter from Scitoys. I followed the instructions from different websites and they still don't work. I don't know why it's not working. On my ...
1
vote
2answers
44 views

Kenwood TM-D710E in packet mode: does not transmit

I own a Kenwood TM-D710E. I connected it via the COM-connector on the panel to a Raspberry pi. On the panel I selected "packet12" (with the TNC button). After that, I can send TNC commands ...
2
votes
3answers
561 views

What causes my direct conversion 80m receiver to receive AM broadcasts?

I am making a Direct conversion receiver from this circuit at this website. I made it for the 80m band and I changed: The frequency of VFO to about 1.75 MHz L1 and L2 to a bandpass filter for 80m ...
2
votes
0answers
457 views

Does anyone repair Flex radios other than Flex Radio?

A local ham that I have an evening sked with on 75m (Paul, W0EBV) sent his Flex 5000 SDR transceiver to Flex Radio Systems to get it repaired a few months ago. However, it seems that Flex is either ...
2
votes
2answers
538 views

Yaesu G-5400B rotator controller problem

I'm currently facing a little problem with our Yaesu controller. I have done all the calibration and the controller appears to be working fine. Unfortunately, it does so for short duration (a couple ...
0
votes
0answers
122 views

Troubleshooting ICOM PS15 Power Supply

I got a power-supply gifted by my friend. When I powered ON, the main (120V) FUSE blows up. I started by disconnecting the transformer from the control circuit and powered ON. This time the fuse is ...
0
votes
1answer
243 views

Another Yaesu G-5400B output voltage question

This question is very similar Yaesu G-5400B rotator controller problem, with a bit of a twist. I'm getting a consistent 5.84 VDC up to the rotators and the expected 0-5.84 VDC at terminals A1-3 and ...
2
votes
1answer
159 views

Faulty MFJ-259 - meter hits end stop on power up

I have a faulty MFJ-259, the early model I believe. When I power it up, the power light doesn’t illuminate, and the meter needles hit the right hand end stops. I immediately power down as I guess ...
7
votes
3answers
1k views

Why do I only hear broadcasts from 150 kHz to 29.999 MHz?

I am currently studying for my amateur radio license. Until I'm licensed, I'm trying to use a Sony ICF-SW7600GR receiver to listen in on amateur radio "phone" transmissions. No matter what I do, ...
1
vote
1answer
2k views

Repairing a Tecsun PL-660

Two years ago, my father and I both received a Tecsun PL-660 radio as a Christmas gift. We both have had good experiences with our radios and generally enjoyed them until they recently both stopped ...
0
votes
1answer
195 views

Kenwood TH-D72 Freeze on Splash Screen

Some friends and I recently placed a Kenwood TH-D72 on the summit of Saddle Mountain in Oregon, USA, and set it up as a temporary digipeater for use with APRS. The TH-D72 successfully digipeated ...
1
vote
2answers
2k views

Baofeng UV82-HX charger problem

I am having problem charging my Baofeng UV-82HX HT. No sooner do I put up the HT on the charger, it starts showing the error lights - green stable, red flickering. I bought this off the shelf in Nov ...
1
vote
2answers
267 views

Yaesu VX-8DE bricked after cloning. Any methods to revive it?

I seem to have bricked my VX-8DE yesterday after cloning it from a PC (using CHIRP) I was able to copy the data from the radio without problems. I edited it in chirp, then sent it back to the radio. ...
0
votes
1answer
163 views

Issue with Icom R-71A

I have an old ICOM R-71a receiver that is giving me grief. The problem started off with audio and rf cutting out completely after being on for a few hours. The frequency display would work but nothing ...
4
votes
1answer
87 views

Signal generator giving DC output?

My signal generator is giving DC at its RF OUT port. At 500 MHz & 1GHz it's giving nearly 1.5V DC when I measure the voltage between the centre pin & outer conductor with a multimeter. I don'...
5
votes
2answers
1k views

Squelch never seems to “open the gate” on Wouxun KG-UV9D

I just got my Technician's license a few weeks ago and I'm trying to figure out if this is user error or if I need to return my radio. My understanding of squelch is that when the received signal ...
1
vote
1answer
166 views

Reception for FM stations is offset, but AM stations aren't

I have a Realistic STA-78 AM/FM Stereo receiver I recently rescued from my grandmother's attic. It hadn't been played in a while, but it appears everything is in working order except the FM dial. It's ...
1
vote
1answer
263 views

Kenwood TS-440SAT Button Bounce or error code?

I was given a TS-440 that was lightly used. Being old it does need some work. This week I am doing the "Button Bounce" fix. Several of the buttons were bouncing so I pulled the component and ...
2
votes
1answer
3k views

Baofeng UV-B6 transmits no audio

I have this Baofeng UV-B6 (the same as B5), and after using CHIRP a few times, transmission stopped working. In fact, it starts transmitting, but no voice is sent whatsoever — dead carrier. RX works ...
1
vote
1answer
674 views

What denotes no RF output in SSB and CW? [closed]

I have that problem currently with my HF transceiver: no power output at all in SSB and CW, no matter which band / Frequency, but everything is ok in AM, FM and RTTY... There is also a big difference ...
2
votes
1answer
1k views

Kenwood TM241A making weird transmissions

I just got a used Kenwood tm241a. It was working fine on my friends antenna until I took it home and hooked it up to a used Larsen nla-mm antenna I bought at a ham-fest. It seemed to work fine on ...