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@@carloswilson4230 no ground was used in this setup, the 16ft coaxial outer braid provides the counterpoise

@@carloswilson4230 no, the wire can be any length that presents close to a 450ohm load across most of the amateur hf bands. The 9:1 steps the approx . 450 ohms down close to 50 ohms allowing the transceiver to transfer the power effectively. Other good lengths that are 58ft, 84ft, 106ft. You typically want to avoid resonant lengths like 33ft, 66ft, 125ft as those length’s present s very high impedance at the end point around 2500 tp 3000 ohms, you can use a 49:1 to step those down. The currently popular EFHW antenna uses such lengths and transformers

@@axi6ne8us if I recall correctly, I use two of the three vertical elements on 20m. I would set the the vna to start at 13mhz and stop at 15mhz and then move the adjustment on the antenna base to achieve the dip in SWR around 14.175mhz.

@@geirha75 Kirchhoff’s law shows us that that must be a counterpoise. In this case the shielding on the 16ft coaxial cable is acting as the counterpoise. This is often referred to as common mode current. If excessive It can cause undesirable effects. For this reason a separate wire counterpoise and a choke at the feed-point are needed in some cases. I find this to be especially true when using digital modes with a non-galvanically isolated sound card interface. Tigertronics Signalink is a good example of a transformer coupled interface that provides the necessary galvanic isolation to tolerate modest amounts of common mode current.

@@johncooper6894 Thanks

@@JohnReynolds-ni5lv about 1 hour of solid tx , about to 2 if used 50/50

@@Ratchet2 the ldg units are great, I have several in various configurations, 4:1, 9:1, 1:1 they all work well

@@mbg4100 sorry, just saw this. About 13ft if memory serves me. I used copper refrigerant line purchased from my local hardware store.

It is wonderful to hear you made the decision to get your license and that you are enjoying the hobby. Welcome to the fraternity. 73 and thanks for sharing

Good eye! I do enjoy all three of those hobbies. 73 and thanks for watching.

I picked mine up directly at Dayton Hamvention at the manufacturers booth. Gigaparts sells them and would be able to provide shipping details. Thanks for watching

I once built to penetrator from scratch, using 102-in stainless steel whip on top of a 20 ft 2x4 and copper wire from there down to a makeshift air pin matching Network and three hundred four inch radials made from I can't remember what. this is over at a guy's house who didn't understand why he wasn't being heard very well by the locals on their verticals when he had a horizontal dipole pulled up 20 ft over the roof, got lucky with this build on the first try we saw 1.25 to 1 and called it good and people that used to hear him with a six to seven now had him at 20 over. That was kind of fun!

Yes, quite frustrating. The home-brew antenna you made sounds like it worked very well. 👍 nice job, Thanks for watching

Thanks for watching. I do sometimes use an arborists throw bag

My apologies, I am not sure what you mean by auonomy? The battery came with a lifepo charger that has an led that turns green when the battery is fully charged. It is a 3 cell 18650 unit that reaches 3 x 4.2v for a total of 12.6 at full charge.

@@johncooper6894 i meant autonomy, as per a full charge how long does it last?

@@itrstt66 the total capacity is 5ah so 10 hours or more just receiving. Less depending on how much transmitting you are doing and at what power level.

No, Not this app. There are some solutions for running JS8 and Winlink on a mac. Nothing turnkey that I am aware of

I find the radio sounds best with rf gain turned down. Try it with the agc off also, it can sound very good.

If I recall I used a sawzall blade to widen the slots. We also replaced all of the hose clamps with higher quality clamps. Since this one, three other local hams have purchased them and all three needed the changes. These are great antenna's with a little effort. 73 John

@@johncooper6894 OK thank you.

I am happy to hear the video was helpful. It is a great antenna once you get it configured correctly. 73 and good dx

Greetings, connecting via wifi does have its own set of issues. There is a registry

Change you can make in windows to eliminate the built in wifi throttling that is on by default to save battery. I haven’t tried it yet myself. Might be worth a try.

@@johncooper6894 Hey, that worked! Kinda' :) The output power is a bit jittery at the top and the ALC is having a workout but I managed to snatch Brazil at the first try with 10W. That's 13k km from my location. I wasn't aware of that setting... Thanks a lot, de YO4OCM

@@OctavMandru You are very welcome. 73 de kc8zki

I run 20 on SSB with the G90. My sessions are typically just my lunch hour and I have not exhausted it ever. This would be a hunting and pecking session. I am sure it would run down quicker if I was running a POTA frequency.

It sounds like you might be trying to tune up out of band. Maybe you have split turned on and the B vfo is not within the ham bands? I would start by making sure split is off and you are in band. I hope you enjoy the setup. 73 John

😆That is funny! The 710 is a nice radio. 73'

😁73!@@johncooper6894

Welcome to the hobby and congratulations on the new general ticket. It is called a pigtail. The one I use for this battery has female spade connectors on one end and anderson power poles on the other end.

Nice to hear. Thank you. Magloops are pretty impressive given their footprint. 73 KC8ZKI

You are welcome. I am glad you liked it. Thank you for watching and commenting. 73 John

Thanks for watching and commenting Alain. Sorry to hear the 9:1 are not readily available in France. I have found that allowing the coax to serve as the counterpoise works well enough for voice or cw. Digital modes such as FT8 will however benefit from an additional counterpoise and a common mode choke on the coax. Grounding is a good supplement or alternative to the choke and also helps to keep the rf current from riding up the coax shield and interfering with USB sound card ports.

Thanks for your quick reply John. Do you use a single counterpoise or more? what length? I was wondering whether it's better making it resonant or not. I didn't know that it's an alternative to a choke on the coax either. Well, these chokes are equally difficult to source here. I'd make one myself but even toroids are a hard find. Of course I can order from abroad, but with eye-watering shipping costs and/or import taxes. You've got a new subscriber BTW, Your working outdoors with the G90 is quite precisely what I'm aiming for, so your channel is of utmost interest to me.

@@F4LDT-Alain thank you for subscribing. I have used a 13ft counterpoise successfully myself. Balun designs has a nice chart that shows various combinations that work out mathematically. Check it out www.balundesigns.com/content/Wire%20Lengths%20for%204%20and%209-1%20ununs.pdf

This is another good source for lengths. dxsupply.com/produktfiler/Wire%20Lengths%20for%204%20and%209-1%20ununs.pdf

This is good advice from the second source I referenced. Ideal: Sloper configuration with one counterpoise but several different length counterpoises is better. Length of counterpoise should be a minimum of 20-30 feet but longer is better. If possible run the counterpoise above ground away from or perpendicular to the antenna wire and do not ground the counterpoise at the unun. You can also use the unun with no counterpoise or ground if your feedline is at least 25+ feet long. In this configuration the coax shield will act as your counterpoise and there should be no ground at the antenna. With this installation there is a high probability of common mode currents on the shield so a good 1:1 choke balun should be installed in the feedline at or near the point it enters your operating position. Using this configuration with an indoor antenna system is not advised. Good: Attach counterpoise stud to a radial field of at least 8 wires minimum, each 10 -20 feet long. Again, more is better and will increase efficiency. Longer length radials are not necessary. Workable: Attach counterpoise stud on unun to a good ground rod at the feed point of the antenna.

The brand on Amazon is HiTow. Here is the full description: HITOWMFG Hitch Mount Flagpole Holder for 2" Hitch Receivers Flag Travel, 8.5" or 11.5" Length Black Powder

I am glad the video was able to help. It is a shame they are still shipping units that are wired incorrectly. Stay warm, wicked weather here too. 73 KC8ZKI

Were your radials loose too?

I believe you are correct. Thank you for watching. 73’ John

Merry Christmas and happy new year to you too

The base is a rubber floor mat. It acts as a cushion against the concrete. It works when parked in grass also to keep the end from sinking. Thanks for watching. 73 John

Thanks! @@johncooper6894

Hello, it is always a good idea to connect a counterpoise. In the case of the video the 16ft coax outer shield was acting as a counterpoise. An additional counterpoise would be beneficial especially for digital modes where usb port disconnects can occur due to common mode current. The addition of a ferrite choke is also helpful.

Thank you Jhon.

Congrats! It is a great little rig. I am sure you will get much enjoyment using it. 73’ John

It is a beautiful rig. Steve gets alot if enjoyment out of it. Thanks for watching.

@@johncooper6894 I lost my ICOM 7700 a couple of months ago to a Lightning Strike and I miss it badly.The New ICOM 7610 is not in the same class but at least replacement parts are available if needed and not so for the 7700.

@@1OFGODSOWN That is a total bummer. I agree regarding the 7610, nice rig, I have one, but not in the 7700 league.

I hope it works well for you! Thanks for letting me know. 73 KC8ZKI

Yes, you can send your position and messages using pinpoint. Thanks for watching.

I hope you enjoy it. Thanks for watching and commenting. 73 John