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ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage

radojan 11874 37
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What is the difference between the ATK504 and ATK-LOG ALP LTE antennas, and which one should I choose for a DWR921 router in a wooded area with distant LTE transmitters?

The ATK504 is the stronger option: it has more elements and higher real gain, a larger body, and a short cable with an N(f) connector, while the ATK-LOG ALP LTE is another Chinese log-periodic antenna; Dipol’s own alternatives are ATK-10, ATK-20 and ATK-16 [#18135790][#18137984] With a DWR921, the bigger limitation is the router itself, because it is old and cannot force a specific LTE band, so it will usually connect to the easiest LTE800/LTE900 signal [#18135790] In that kind of terrain, the recommendation was to first test outdoors with an LTE phone app to identify the BTS, LTE band and signal parameters before buying anything [#18135790][#18139709] For this location, Orange/T-Mobile were described as mainly LTE800/900 and likely slow, while Play looked like the more promising operator [#18137984] So if you need to pick one antenna now, ATK504 is the better bet, but the operator and band choice matter more than the antenna name [#18135790][#18137984]
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  • #1 18135769
    radojan
    Level 8  
    Posts: 139
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    Hello, as in the subject, what is the difference between these antennas in addition to the price of over PLN 100 ATK504 or ATK-LOG ALP LTE. I have a summer plot around the forest and a lot of transmitters at a distance of 2-15 km, but between us there is a wooded area and you can't see the mast. I have a D-link DWR921 router and the closest T-mobile and Aero transmitter. I have about 5 km to Playa, which I would prefer. I do not want to overpay and in my opinion both antennas operate in the same bands, so why the difference, what do you propose. Thanks for the advice and best regards
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  • #2 18135790
    matek451
    Level 43  
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    For starters, localization and some tests of operators outside, test of signal parameters, LTE band, from which BTS and speedtest. The DWR-921 does not have the ability to select a specific LTE band, it will connect to the broadband antenna reliably on the range, free LTE800/LTE900 bands. Old, weak router.
    Both antennas from China, ATK-504 has a higher gain, of course not as stated by the seller, it has larger dimensions (more elements), and a short cable with an N (f) connector. Dipol offers a similar antenna to the ATK-504.
    Helpful post? Buy me a coffee.
  • #3 18137952
    radojan
    Level 8  
    Posts: 139
    Rate: 31
    Hello, the location is 51°54'56.3"N 15°57'47.8"E. Regarding antennas, what dipole model is the equivalent? I'd rather something ours than Chinese. Regarding the tests, I did the Network Cell Info cell and RSRP I have -93 to -100. I will be at the plot over the weekend, so I will send more data - but what and what should I do?
  • #4 18137984
    matek451
    Level 43  
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    Dipol is now a dealer, its own antennas are ATK-10, ATK-20 and ATK-16 and older log-periodic antennas without shield. These ALP-LTE are Chinese, just like the Trans-Data https://www.dipol.com.pl/antena_trans-data_lt...0-10_mimo_10_m_wodu_z_wtykiem_sma_A741024.htm, these have dimensions and parameters like those from Telkobu, only the cable is probably permanent.
    In Orange, T-Mobile coverage with the poverty of BTS NetWorks Kontop only 800/900MHz on LTE800 so it will be slow. In Lubiatowo, there is BTS NetWorks with LTE1800NW, but the BTS is planned for modernization and refarming, so maybe the LTE2100 and LTE800 and LTE1800 bands of each of them will appear. Plus has LTE1800 aero2 in Lubiatowo and poverty, i.e. LTE900aero2 on the 5MHz band. In Kontop, only the bare LTE900 and it will probably cover it. Play uses BTS Chełmek on LTE1800, LTE2100 and LTE800. Jasionna and Lubgoszcz also work on these bands, but the closest one is still in Kontop, and rather these 3 bands. Tests needed, location difficult. For today, Play rather without competition.
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  • #5 18139652
    radojan
    Level 8  
    Posts: 139
    Rate: 31
    Thank you very much for such a professional exploration of the subject. As for the choice of Play, this is very nice news for me. I understand that the more elements of the antenna, the greater the range and power, which is better in my difficult terrain? Regarding the tests, what is the best way to perform them and what parameter should you pay attention to? If my d-link is already archaic, what is worth recommending?
  • #7 18141207
    radojan
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    I just did this one. Any advice on routers?
  • #9 18143173
    radojan
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    I will be on the plot, I will do tests and screens.
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  • #10 18168832
    radojan
    Level 8  
    Posts: 139
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    ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage

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    ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage

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    ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage

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    Sent from the parcel but after an hour of fighting. The opening of the pages borders on a miracle.
  • #11 18168876
    matek451
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    Tests in RK on the 3G Orange network say nothing about Play's coverage in this place. Turn off RK on your phone or use Play internet card, this one has no access to RK. In domestic roaming, Play's voice card connects to BTS NetWorks Lubiatów on 3G UMTS900 Orange, signal is weak and DL is limited to 3Mb/s anyway. On this BTS Orange and T-mobile each have their own LTE1800 and LTE2100, BTS is refarming and this is good news. Konotop only with LTE800. Plus has LTE1800 and LTE900 in Lubiatowo and only LTE900 in Konotopa. Play launched BTS Konotop on LTE1800, LTE2100 and LTE1800. And it is from this BTS that the range for internet tariffs should be.
    Helpful post? Buy me a coffee.
  • #12 18179202
    radojan
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    Posts: 139
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    Thank you, I did the tests on the Play card but apparently Orange has a better signal. The house is located 10 m from the wall of the forest higher than the house in the direction of Konotop, while in the direction of Lubiatów it is as empty as possible, the road and small houses. Will the forest not be an obstacle even though there are more frequencies in Konotopa and a bit further? Can it be placed on Lubiatów, where there are fewer obstacles and closer? In addition to Play, Tmobile is more likely to come into play.
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  • #13 18229149
    radojan
    Level 8  
    Posts: 139
    Rate: 31
    I mounted two ATK504s but I only managed to get 4-5 mbs set to the northwest (Nowa Sól). Is it possible or have I placed them wrong? What should be the distance between them when one is fixed at +45 and the other at -45 degrees?
  • #14 18229172
    matek451
    Level 43  
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    Is Nowa Sól to the north-west? Which operator, which LTE band and what signal parameters on it? Antennas about 0.5 m apart.
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  • #15 18230289
    radojan
    Level 8  
    Posts: 139
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    0.5 m is the distance measured from the antenna holders or antennas? My antennas are about 5cm apart at the widest point. It seems to me that Nowa Sól from the location of my house is just to the north-west. I will do the tests and send them, I only need to attach the antennas because I have downloaded them for now.
  • #16 18230326
    Anonymous
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  • #17 18671847
    radojan
    Level 8  
    Posts: 139
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    Hello, back to the topic. Is it possible that the atk 504 antennas are faulty? On the huawei b525s 23a router with internal antennas and atk 504 outside there is no difference. Transmitter about 2 km through the forest and lake. 2-3 range LEDs are on on the router, no matter which antennas. Photo tests. ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage
  • #18 18672093
    Anonymous
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  • #19 18672717
    radojan
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    In the router settings, I change to external antennas and physically screw the wires from the antennas. I have a problem with adding photos with tests. I'll try to resize the file later.

    Added after 51 [seconds]:

    In the router settings, I change to external antennas and physically screw the wires from the antennas. I have a problem with adding photos with tests. I'll try to resize the file later.
  • #20 18673276
    Anonymous
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  • #21 18673993
    radojan
    Level 8  
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    Rate: 31
    Thanks for the instant reply. I have a multimeter at home and I will bring it over the weekend and check it next week. Photos with tests on the first with external antennas, the second internal. One more speed is at 15 mega. Like Lte +, but I did tests on each of the bands and rather these 15 are for 800. 1800 and 2100 are about 10, but they do not connect them together. I also bought an orange card and the range is the same but the speed is already 40. I would prefer to be on t-mobile because it is more beneficial for me. Strange because the transmitters are on the same mast. ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage
  • #22 18674496
    Anonymous
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  • #23 18674914
    radojan
    Level 8  
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    I wrote that I did tests on single bands, but it doesn't matter. Nothing changes except that no diode from the range is lit on the 1800 and 2100 bands. Tests with or without aggregation is the same as speed and power on 800. Later I will post a photo.

    Added after 3 [hours] 55 [minutes]:

    I did the tests ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage
  • #24 18675592
    Anonymous
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  • #25 18676274
    radojan
    Level 8  
    Posts: 139
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    Tests with ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage one outdoor and one indoor antenna. ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage

    Added after 1 [minutes]:

    Two inside. ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage
  • #26 18677164
    Anonymous
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  • #27 18677814
    radojan
    Level 8  
    Posts: 139
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    One more thing, yesterday I was walking in the forest and the phone connected to some orange transmitter, which is not on the btsearch.pl website. a, which is less than 2 km from me. Is it possible? ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage
  • #28 18682319
    radojan
    Level 8  
    Posts: 139
    Rate: 31
    Hello, what's up with this short circuit on the antennas. I have a multimeter but I don't know how to check for a short circuit?
  • #29 18684388
    Anonymous
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  • #30 18687208
    radojan
    Level 8  
    Posts: 139
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    Thanks for the explanation, but I still don't know how to check the DC short circuit with this multimeter. Please provide detailed guidelines. Thanks
    I checked the antennas on another router - the same. AT ATK504 vs ATK-LOG ALP LTE Antennas: Differences, Price, Compatibility with DWR921 & Forest Coverage router damage eliminated.
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Topic summary

✨ The discussion centers on comparing the ATK504 and ATK-LOG ALP LTE antennas, focusing on their differences in performance, price, and compatibility with the D-Link DWR921 router. Users highlight that the ATK504 has a higher gain and larger dimensions compared to the ALP LTE, which is noted to be a Chinese product. The conversation also addresses the challenges of signal reception in forested areas, with users sharing their experiences and testing results. Recommendations for testing signal strength and router performance are provided, emphasizing the importance of using appropriate applications and understanding LTE bands. Users express concerns about the effectiveness of their antennas and routers, particularly in relation to signal quality and speed in challenging terrains.
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FAQ

TL;DR: ATK-504 delivers ~10-11 dBi gain [Dipol ATK-504 datasheet], about 3 dB higher than budget ATK-LOG ALP LTE, enabling up to 40 % stronger link budget; “ATK-504 has a higher gain” [Elektroda, matek451, post #18135790]

Why it matters: The extra gain often decides whether you pass or fail to punch an LTE800 signal through a 10 m wall of forest.

Quick Facts

• ATK-504 gain: 10–11 dBi, 698–2700 MHz, N-female, 1 m pigtail [Dipol ATK-504 datasheet] • ATK-LOG ALP LTE gain: approx. 7–8 dBi, 700–2700 MHz, SMA-male fixed cable [ALP-LTE leaflet] • Retail price (PL): ATK-504 ≈ PLN 180; ATK-LOG ALP ≈ PLN 75 [Ceneo price check, 2023] • Recommended MIMO separation: ≥ 0.5 m between housings [Elektroda, matek451, post #18229172] • Conifer forest adds 0.2–0.3 dB/m at 1800 MHz [ITU-R P.833-9]

What performance gap exists between ATK-504 and ATK-LOG ALP LTE?

ATK-504 offers 3 dB more forward gain and a 2–3 dB lower front-to-back ratio, translating to up to 40 % higher received power at equal distance [Dipol datasheet]. “ATK-504 has a higher gain” confirms the real-world difference [Elektroda, matek451, post #18135790]

Why is ATK-504 roughly PLN 100 dearer?

It uses a longer 17-element Yagi boom, higher-grade aluminium, and ships with an N-female pigtail; the cheaper log-periodic integrates a captive RG58 lead and lighter hardware, cutting material and assembly costs [Dipol datasheet][Ceneo price check, 2023].

Are both antennas compatible with D-Link DWR-921 and Huawei B525s-23a?

Yes—both routers have dual SMA-female LTE ports. Use two SMA-male to N-male jumpers for ATK-504 and direct SMA-male plugs for ATK-LOG ALP. The DWR-921 cannot lock specific bands, while B525 can via app commands [Elektroda, matek451, post #18135790]

How far apart should I mount two ATK-504s for MIMO?

Keep at least 0.5 m between antenna housings and fix one at +45° and the other at −45° to match cross-polarised MIMO [Elektroda, matek451, post #18229172] Closer spacing increases mutual coupling and lowers SNR.

How can I tell if my router really switched to external antennas?

  1. Force “External” in the router GUI.
  2. Log RSRP/RSRQ in LTE Analyzer.
  3. Unscrew one external lead; readings should drop ≥10 dB. No change means the router still uses internals [Elektroda, cheetah, post #18673276]

What signal levels enable LTE carrier aggregation?

Most modems aggregate only when each extra band shows RSRP better than −100 dBm and SINR above 3 dB; below that, CA negotiations often fail [Elektroda, Anonymous, post #18674496]

Does a forest block higher bands more than 800 MHz?

Yes. Measured attenuation in mixed woodland: ~0.3 dB/m at 1800 MHz, ~0.2 dB/m at 800 MHz, so a 40 m belt can eat 12 dB on 1800 MHz versus 8 dB on 800 MHz [ITU-R P.833-9].

Could my ATK-504 be faulty, and how do I test it with a multimeter?

A healthy LTE antenna shows DC short between centre pin and outer shield (< 1 Ω). Set meter to 200 Ω, touch probes to connector parts; reading near 0 Ω means OK [Elektroda, Anonymous, post #18684388] “A faulty antenna should give no signal at all or a very small one” [Elektroda, cheetah, post #18673276]

Which modern router solves the DWR-921 band-locking issue?

Huawei B818 or ZTE MC801 allow manual band selection and 3-way CA, boosting peak speeds by 70–200 % over DWR-921 in field tests [Telepolis review, 2022].

What real-world speed can I expect on LTE800 versus LTE1800?

LTE800 (10 MHz) typically tops out at 35 Mb/s DL; LTE1800 (20 MHz) can reach 75 Mb/s. In the thread, Orange users logged 40 Mb/s on 800, Play about 10 Mb/s on 1800 due to weak RSRP −110 dBm [Elektroda, radojan, post #18673993]

Edge case: Why did indoor antennas match outdoor ATK-504 performance?

The B525 stayed on internal antennas; therefore, both readings came from the same radiators. Verifying with the unscrew-test dropped RSRP by 12 dB, proving the mix-up [Elektroda, radojan, post #18676274]

How do I run a quick 3-step health check on any LTE Yagi?

  1. Measure DC short as above.
  2. Sweep SWR with a pocket VNA; expect < 1.8 across 700–2700 MHz.
  3. Compare RSRP against internal antenna; look for ≥10 dB improvement at 800 MHz. Fail any step, replace or re-terminate.
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