Hybrid of Wolf River Coil & Comet Toybox HF Antenna: Gabil GRA-7350T Antenna (HF-PRO-2-PLUS-T)
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- เผยแพร่เมื่อ 29 มิ.ย. 2022
- A Cross between a Wolf River Coil and Comet Toybox HF Antenna: Gabil GRA-7350T Telescoping Antenna (HF-PRO-2-PLUS-T)
Check out this tiny HF antenna with big results.
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➽ Gabil GRA-7350T Telescoping Antenna -- amzn.to/3bqX0uU
➽ GRA-ULT01 Antenna Mount Tripod -- amzn.to/40tR5cw
➽ 7 Element Manpack Collapsible Antenna -- amzn.to/3I80K0D
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#HOAHam #GRA7350T #HamRadio - วิทยาศาสตร์และเทคโนโลยี
This is a nice 5 minute video. Thank you for testing this.
My pleasure, hope it was helpful.
Were you trying to direct that at me? :-D Nice video! Pro skills at the operator bench at the end. Most people aren't that patient
Not knowingly. One more vid dropping this weekend with more comparisons.
@@HOAHamRadio I made two videos on the Toybox. You can tell I don't like it from my videos :-(
Ok, now I understand. This looks similar to a Toybox, which is why I made reference to it. Turns out, the Gabil is more like a Wolf River Coil than a Toybox.
@@HOAHamRadio Well yeah... the Gabil worked. I really want that tripod, but they are awfully proud of it...
I don't think a 10-80 meter portable antenna exists because EVERY review only tests on 20 meters and says the antenna is great. 😮
LOL Paul O; you bring up a valid point. 20 meters is such a popular / busy band with international use, I think that's why it gets used. I could have sworn I have shown the 7350T on 40 meters also. I've found viewers get bored after 1 QSO and click off, so I've reduced how many I show.
All that said, challenge accepted. You'll see the 7350 coming up in the near future on 10 - 80....multiple short videos.
@@HOAHamRadio awesome!
K8mrd has a video on the silver bullet 1000
Excellent review sir! 73 from St. Pete! Pretty close to you!
Thanks for the positive feedback Eduardo Power. Love Tampa Bay!!
Looking forward to your video on converting radials to banana plugs. Love the setup you're using! I'm stuck in an HOA so, I can relate. I'm currently doing all of my operation as mobile; FT-891 w/ATAS-120A. (Hands up, everyone who's worked Janez/S51DX! HiHi!! He's a great operator - worked him several times mobile @ 70w.) 73! WB3CFN
HOA won't keep us off the air. My video on banana plug radials drops tomorrow around noon eastern.
I'm across the state on the Space Coast. I can relate to being prepared.
Do you see this as possibly being a semi-permanent antenna?
I believe it is considered to be a portable, short term use antenna, rather than a permanent shack set up--i.e, not sure it will withstand extreme weather for a long period. I'll investigate this further and try to include some commentary in one of the next videos.
I have to admit like you I am intrigued by these types of antennas for the portability, ease of erecting and stealthiness of them. I have similar version which has various taps much like the toy box antenna at the side for selecting the bands and after a little research and some experimenting. I was told it is best to treat these types of antennas a bit like a dipole, that you must have one tuned raised counterpoise which intern is other half of the antenna (hence dipole) this must be kept off the ground otherwise it becomes very lossy causing VSWR issues. You can still add as many radials as you like which help ? I'm a new operator and certainly no expert! Maybe you could do a video showing the difference between one tuned counterpoise and several bunches radials. 73's from your friend across the pound.
Kev, I’m still working through all the opinions on radials. I do have a more detailed comparison vid dropping Thursday.
Your videos about the Gabil antenna helped me decide to get one and I'm really happy with this purchase. Already got on 80m which was something unthinkable with my balcony situation. I have a question: do you know if the Chameleon CHA SS17 whip will fit on the Gabil coil? Looking to get a whip to improve the radiation pattern and bandwidth. Thanks!
Levy, it will not fit in its current configuration. I am actively looking for an adapter to use for modifications like this. As soon as I find one, I will post an update. I do have more videos planned for the Gabil set up. I appreciate your feedback, it lets me know I'm going in a good direction.
@@HOAHamRadio oh I see now, the supplied whip has a female connector as opposed to the CHA male connector. Thanks for the research! Looking forward to the next videos about this. Thanks!
I got an idea I want to try on my WRC. I have 3 30 foot HFT tape measures I want to connect with alligator clip leads.
That might work with with the antenna you have in this vid.
Thanks for the recommendation Dominic. Alligator clips is the way to go. I'm almost done developing a system I think will help other hams, and just a few weeks away from shooting the video.
Thanks for the review. Haven’t seen that antenna before. Wish I would have before buying the toybox HFJ-350.
Definitely like the tripod and looking at getting it next.
I’m also in Florida. KO4ZKP
Renee, you'll see plenty more of this antenna. Its so much more than the Toybox. I own the Toybox and have yet to get it out in the field. So many toys to play with. Thanks for stopping by and watching.
Great demonstration of the Gabil GRA-7350T antenna. While it works pretty much the same as the Wolf River Coil, it's unfortunate that the kit only includes the antenna and coil. No radials or base on which to mount it. You would think that for $129.00 they would at least include these necessary components. And while you could purchase the tripod which sells for an additional $100.00. I guess if you had the parts you needed, you'd have the makings of a great antenna. As for the Wolf River Coil TIA Mini however, it comes with everything you need to set it up, coil, antenna, tripod and radials all for $130.00. But the best part, is that it's made in the USA not like the Gabil which is from Taiwan.
Thanks for watching Kenneth. Your observations are spot on. The WRC is lower cost with great performance. I am migrating to the Gabil to have a smaller footprint, lighter weight, and more versatility in my Go Bag -- it is at a premium price. So many great options out there today to meet all kinds of preferences and budgets.
Hi Bob, will I need an auto turner using this antenna GRA-7350T
Auto tuner, no. It would help to have an analyzer, like the MFJ-223 or RigExpert; I have both. You tune the Gabil by moving the coil just like you do the Wolf River Coil.
would of been great to see the WSPR propagation map between both antennas.
Haven't taught myself WSPR yet, but I agree with you, would be helpful for comparisons like this. Thanks for watching and for the recommendation.
In H-TOWN, you have to prepare for weather from hurricanes to ice storms.
I hear you. My oldest son lives in Dallas...bipolar weather conditions throughout the year (and sometimes weeks).
Quite surprising performance from a 9 foot vertical. How am this be happening ? I do notice your surrounding yard looks quite magnificently green and am wondering if you might have rather excellent ground / earth performance at your QTH
Ya know, I've been thinking exactly what you observed. My soil is wet, the water table is high, so I think I may have an unfair advantage here.
dang, did y'all see that snake in the grass following him?
Snake, where, yikes! Really? How did I miss it?
That is NOT a toybox. I like how you stated it. I love the tripod. I went ahead and got both to play around with. 73 and thanks for the review.
Don, no it isn't! I have to admit, I'm bit impressed in my initial testing. It's going back yard portable again, head to head with the Wolf River Coil....which I think is a fantastic antenna! More to come.
@@HOAHamRadio Looking forward to it.
Good test. Interesting vertical.
Your 73ft endfed is a random wire, so it may be a tad down from an EFHW antenna. In either case both type endfed antennas should operate most bands without a tuner or adjustment. For me no tuner on multiple bands is a big plus.
For ECOM its hard to beat a good 80m-10m EFHW.
The vertical might beat it in some DX situations with lower angle radiation.
For EMCOM I want 80m & 40m NVIS. The vertical will be very weak in that respect.
Thanks for watching and the great feedback.
@HOA Ham. YT suggested one of your video’s just a day or two ago. It was on the banana plug radial. Watched it twice. Reviewed the techniques again and hunted down the parts. Gotta admit, a bit more in cost than I would have imagined. But, I will have supplies for future projects or to help fellow hams out. Your investigation into stealthy/HOA friendly antennas made me a subscriber. My question is “what is the setup at the radio end?” I see you have the SDRuno on screen and noted a ‘very’ acceptable noise floor. I myself run a Super Antenna with an aggravating noise floor, so I am interested in which components/sw you use to mitigate noise. Parts are still in route but, I am looking forward to assembling my banana plug radials. 73! And hope to hear back from you. KI5SWA
Thanks for watching Thomas. I'm running a FT991A with a Chameleon Antenna CHA Micro with a 73' sloping wire. I am quite happy with my noise floor.
I use rig control with the SDRplay software so I can control the 991A from the computer.
@@HOAHamRadio Thank you for your reply. Things to consider as I grow in the hoby. Still waiting on parts but an inproved six traand ground radial helped me this weekend to reach as far as CA and NH from TX on 10m. Something my SuperAntenna did not seem to do before. Thanks again.
Bunch of 15 footers work fine.
Thanks for stopping by and commenting.
How does it do without the radials?
I don't run this antenna without radials; it would be near impossible to tune and it would be less affective.
9foot. Should be resonate on 10 minus the coils.
Thanks for watching.
Isn't the GRA-7350T is a 80-10 plus 6m antenna not 40-10 plus 6 and isn't the loading coil is for 75-80m.🤔
You are 100% correct imh116; I corrected my glaring mistake first thing in the very next video. th-cam.com/video/Rqj7D0xk7AY/w-d-xo.html
He is saying this is 6m (or 10m) through 20 meters, and you add the load coil for 40m. Am I insane, or is that wrong? I thought this was 6m through 40 meters (7 MHz) , add load coil for 80 meters (3.5 MHz). Correct me if I'm wrong...
You are absolutely correct, and I was wrong. I corrected my mistake in the next video. It is 6 through 40, then add the coil to get 80. Nice catch.
How come no one makes a 1000 watt mobile antenna
I am guessing because we don't have 1000 watt mobile radios...again, guessing
Too bad the tripod is only SO239.
I hear you Kent; this makes my second mount from Asia that uses the SO239 as standard. This Gabil antenna requires this configuration. I've created flexibility by using the Comet AD-35M adapter; you need a use case that justifies the extra adapter, which I have for the way I operate. Thanks for watching.
Thanks. I have a small yard.
This is helpful. N0QFT
Sure thing Glen. Both great antennas. The 7350 is tiny relatively speaking.