That set of RCA monitors (made by Belar) was likely made in the 1960s or 1970s. They were way ahead of their time, back in the day. The oven was needed to keep the crystal stable because the FCC required frequency measurement also.
The QEI is way easier to calibrate than the Belar devices, and more stable as well. Also the sound quality is much better with less noise and lower effects of incidental AM. You picked up a great piece of gear.
My supplier just got some equipment from a radio station that went digital. I bought the QEI 691 and planning on selling on ebay soon. He also got a couple Pacific Research RadioMixer 20 units that will probably get scrapped if someone doesn't buy them soon. They are too big for me to deal with, but maybe I can get him to palletize them.
it is easy hook up your audio cables after your audio processing chain. Take your output from your chain that would go into your transmitter normally and run it into your input on your monitor. Than the out put goes to your transmitter. The easiest monitor to use is the inovonics. I believe they have an FM one and a AM one. they work well if you have a part 15 certified Hamilton Rangemaster or a Chez radio procaster. Their both capable of transmitting 250 percent modulation on medium wave AM. Both radio Canada and FCC certified for low power part 15 transmission. They can legally transmit up to two miles as well as they can be synced together same as a cellphone tower to give you greater coverage. They also can have the audio source be fed to them over the internet by WiFi using the Barix instreamer and exstreamer. They have a feature that pulls up the instreamer's IP address. As, well as their is a place on the back of the exstreamer that allows yo to plug in a thumb drive in case you loose your feed so you do not have dead air, or you can use it to deliver a message such as for a public information station.
John Stuart - I have thought about doing lpfm but those frequencies are virtually impossible to get. I have honestly never thought about lpam and I’m also not sure I’d have the time to invest in setting up an organization like that. Thanks for the thought though.
@@mynamenowhastobeasecret.2079 I got solar panels and had to take down the antennas, but every once in a while I run into a dummy load, so no, not pirate radio station.
The ground plane antennal is simple - you just have to have the vertical element be the right length (5/8 wavelength for mine). The one I have had an instruction sheet that gave a transmitting frequency to vertical element length table. The vertical element is also easy to work - mine is like a telescoping antenna with a clamp. pretty much idiot proof. Mine is a Ramsey FMA200.The circularly polarized antenna is a different story that involved setting both vertical element lengths as well as the feed point. I needed an antenna tuner to get this right. But it too came with settings instructions.Of the two, I'd go with the GP version if you are unsure of your skillz. It is easier and lighter and there are not too many down sides.
That set of RCA monitors (made by Belar) was likely made in the 1960s or 1970s. They were way ahead of their time, back in the day. The oven was needed to keep the crystal stable because the FCC required frequency measurement also.
Had one of those QEI 691's years ago, that's a great pickup.
The QEI is way easier to calibrate than the Belar devices, and more stable as well. Also the sound quality is much better with less noise and lower effects of incidental AM. You picked up a great piece of gear.
I just got one of these. Pretty excited to get it.
Keep up the good work
My supplier just got some equipment from a radio station that went digital. I bought the QEI 691 and planning on selling on ebay soon. He also got a couple Pacific Research RadioMixer 20 units that will probably get scrapped if someone doesn't buy them soon. They are too big for me to deal with, but maybe I can get him to palletize them.
Could you please do a video of how you set up the Modulation Monitor?
it is easy hook up your audio cables after your audio processing chain. Take your output from your chain that would go into your transmitter normally and run it into your input on your monitor. Than the out put goes to your transmitter. The easiest monitor to use is the inovonics. I believe they have an FM one and a AM one. they work well if you have a part 15 certified Hamilton Rangemaster or a Chez radio procaster. Their both capable of transmitting 250 percent modulation on medium wave AM. Both radio Canada and FCC certified for low power part 15 transmission. They can legally transmit up to two miles as well as they can be synced together same as a cellphone tower to give you greater coverage. They also can have the audio source be fed to them over the internet by WiFi using the Barix instreamer and exstreamer. They have a feature that pulls up the instreamer's IP address. As, well as their is a place on the back of the exstreamer that allows yo to plug in a thumb drive in case you loose your feed so you do not have dead air, or you can use it to deliver a message such as for a public information station.
LPAM? Any future there? Nice vid Bro!!
John Stuart - I have thought about doing lpfm but those frequencies are virtually impossible to get. I have honestly never thought about lpam and I’m also not sure I’d have the time to invest in setting up an organization like that. Thanks for the thought though.
@@humbertowrigolini578 are you currently a pirate radio station?
@@mynamenowhastobeasecret.2079 I got solar panels and had to take down the antennas, but every once in a while I run into a dummy load, so no, not pirate radio station.
@@robertwright7143 ok. Thank you. I was wondering.
you have a license to broadcast?
All dummy loaded. Not broadcasting.
Do you know how to setup the antenna? you can just put it together and that's it right ?
The ground plane antennal is simple - you just have to have the vertical element be the right length (5/8 wavelength for mine). The one I have had an instruction sheet that gave a transmitting frequency to vertical element length table. The vertical element is also easy to work - mine is like a telescoping antenna with a clamp. pretty much idiot proof. Mine is a Ramsey FMA200.The circularly polarized antenna is a different story that involved setting both vertical element lengths as well as the feed point. I needed an antenna tuner to get this right. But it too came with settings instructions.Of the two, I'd go with the GP version if you are unsure of your skillz. It is easier and lighter and there are not too many down sides.