looking forward to achieving my amateur radio license to be able to broadcast rather than just listen. - andy, reno nevada

14332

I have one for every band…

PRC-77

Stop putting foil on your head it will only increase whatever signal is being beamed at you

Made 5 contacts so far..

Frequency ??

Can you please list your equipment and specs? I want to invest in some radios and such. Thanks! 🫡

LMAO i love it so much, especially as a european

$300 for a dc-3GHz HP Spectrum Analyser? That's a bargain!

Was hoping this morning. Tuesday at my home in Texas

Hello, good to hear them old units working

put binder posts with wing nuts on it like the high current ashtron's

Any info on how well this matches up with the XPA125B? I have a G 90 already and the amp so was curious. Thanks 73 de N2VQD

I have some issues but manageable. Ground are needed however they can cause issues also. Some might find it surprising that Bob Heil did not like grounds especially on his Harvey Wells.

I believe the isolator is only to protect your equipment from rf. You need their 1 inch ferrite choke and what ever turns you can do at around 50'.

I had ABR make my coax and use 7 ferrites built to the coax. Ferrites right at base of the antenna so nothing comes down and in to my home or my neighbors.

I swear I can hear a VFD in the background.

#1, If you transmit, you have an RF field. This is what transmission is all about. #2 If you have wires, pipes, ducts, etc. those are antennas. They will pick up your transmission. #3 If you have a battery operated scope, you can see the RF in the HF band. #4 There are common mode inductors which are very often used to provide a high impedance path in signal wires, such as thermostat, telephone, etc, low voltage control wire. #5 If you are cheap, you can find those filters in the old power supplies from computers and other items that use them to reduce RF getting out for FCC complyance. $6 Those filters work well to knock down common mode noise much better than some ferrite beads. Look for 15mH bifilar chokes on powdered iron torrid cores. Had to do commercial sound at a fairground less than 800 feet from an AM broadcast antenna. The sound system was picking up the radio station on the 150 feet of microphone cable between the sound booth and the stage. Had to add the filters to clean that up. The common mode RF on the cable was over 30 volts P=P. The filter cut the current to next to nothing, so the signal was well below the detection caused by the op amp inputs. The 1.7MHZ signal was cut by the 15mH choke by more than 60 DB into 75 ohms. Going frm the shack to the antenna should be done with COAX or twin lead to reduce emission from the wire by using equal differential currents. This does mean a proper counterpoise on the antenna to stop RV currents on the outside of the transmission line.

Is there a possiblity that the coax has low quality shielding?

It doesn't matter what I use for a radio, when ever I key the mic my motion detection outside light will come on. Even my low power FRS radio will trigger the light.

I must say that that is the most expensive furnace controller I've heard of in recent times...

Wow whats that RF doing to your brain?

John, I had the same problem with furnace and sprinklers. All I had to add was a 0.01uf capacitor across the furnace wire and sprinkler lines. Furnaces and sprinklers are not RFI hardened, so you have to make it hardened yourself.

SDR???

I started on the CB in the 1980s, but I soon learned about and got my HAM novice license when I was ~16. There were a lot of crazy people running ridiculous, illegal power. It was fun, and I made quite a few friends on it.

It’s a 75m net, all legal. They’re just using very old military radio gear. Tubes.

bro, this is not illegal or something?

That sounds wonderful!

Great job! 73!

Thanks John.

How did you fix it ?

Wow, ok! So, do i understand this right, you made your own HV rectifier for the main plate supply? I've got a 707 too. So what diodes did you use and how many?

Very cool Johnny!!! Sounded good last night

That's Ron!

FLEX is very expensive

European AM-stations are qrv on 29,000 Khz, please call and listen. Vy 73 DJ9PE

I've been lucky to see a few.. k1tli is local to me and got to tour his shop..amazing work he does..the 500 my friend had was one he did. He passed away not to long and ago and man wish I could have gotten it.

No compromise US muscle radio

If anyone has ever heard a, Johnson 500 on air, then you know what (IMO) the GREATEST sounding AM ham transmitter audio is. ITS ABSOLUTELY INCREDIBLE! I'm aware of someone who has widebanded a, Viking 500, and I'll never understand why. Plate modulated transmitters of that era were the 1st "HIFI" transmitters. The 500s audio is LOUD, BOOMING, and CRYSTAL CLEAR! IMO there's nothing that sounds better. Great job tracking down, and repairing your 500.

I Just got a 700 CX and it wont key up for some reason. faulty relay maybe? It receives well and the meter is erratic so I got some tinkering to do but I hope to get it going some time.

Hey John, Just found your channel. Interesting stuff. Have you checked the sprockets on the Tempo 2020's ? Subscribed.

Heard you a few days ago probably around noon your time. I was mobile south of Cleveland in the big truck running anytone 5555N and 4 foot wilson on the mirror.

AM in Europe = 29.000 KHz.

Please call and listen at 29.000 Mc for europian AM-stations. Vy 73 DJ9PE

Too bad all my vmr are 6m and very short range.

Greetings from Germany. AM in Europa is only allowed on 10m-Band (29.000 -29.300 Mc), if conditions are good, please listen and call on 29.000 Mc also. Tnx and vy 73, Bernd DJ9PE.

I live in Queens, New York, and I'm looking for a radio station transmitter for business purposes and inspiration for both better health and youth.

Very nice

Oh man. Nice selection of equipment there!