Jumpers and Antennas for the Baicells Nova 436Q: What We Actually Run

May 28, 2026/Josh Lambert

Jumpers and Antennas for the Baicells Nova 436Q: What We Actually Run

When somebody orders a refurbished Baicells 436Q from us, the radio shows up in a box, ready to talk to Rapid5GS. We don’t stock antennas or jumpers ourselves, so the stuff that has to hang off the four N-Type connectors on the back (the sector antenna, the RF jumpers, and the matching hardware) is on you to order direct from the vendors below.

And every week we get the same question: “OK, I bought the 436Q. What antenna do I put on it and what jumpers do I order?”

It’s a fair question, and the wrong call here is more painful than people expect. Mismatched connectors mean you’re driving back down the mountain. Cheap jumpers mean PIM on day one and water in your weatherproofing on day three hundred. The wrong antenna means a sector that overshoots half the county, kills your uplink SINR, and locks you into whatever reuse pattern you can scrap together later. None of that is a problem you want to discover on a 200ft tower with the boom truck already rolling away.

So here’s what we recommend buying, why we recommend it, and the framework we use to pick between the two antennas on our short list.

Table of Contents

The Baicells 436Q in 30 Seconds

If you skipped the spec sheet, here’s the only piece of context that matters for this article: the 436Q is a 4x1W dual-carrier outdoor eNB with four external N-Type female RF connectors. It operates on Band 42/43/48 (the 3.5GHz CBRS family in the US, with broader 3300–3800MHz coverage globally) and runs against Rapid5GS without anything else in the rack.

What it doesn’t have is an antenna. That part is on you. And because the radio has four 1W TX chains, you’re feeding a 4-port sector antenna. Not a 2-port. That single fact is the foundation of every decision below.

If you’re still shopping the radio itself, see our refurbished Baicells 436Q product page for the unit we ship (HaloB included, unlocked from FreedomFi, Rapid5GS ready).

Jumpers: Gamma Electronics, Every Time

Before we get to the antenna debate, let’s settle the jumpers, because this part shouldn’t even be a discussion.

Buy Gamma Electronics jumpers. Order them direct from Gamma, or from any of the WISP distributors that stock them (ISP Supplies, Baltic Networks, DoubleRadius, etc).

Tommy and I have installed a lot of jumpers over the years, in a lot of climates, on a lot of towers, and the Gamma cables are the ones we feel comfortable leaving up there for years without thinking about. Specifically:

  • They’re well constructed. The connectors are properly attached to the cable, the jacket is real, and the strain relief actually relieves strain.
  • They’re PIM tested. Every cable. Passive Intermodulation is the silent killer on CBRS sectors. You can have a “working” link with garbage PIM and never know why your uplink SINR is in the toilet. Gamma certifies their cables won’t degrade your noise floor before you’ve even bolted them on.
  • They ship with weatherproof boots. If you’ve ever wrapped a connector with butyl and Scotch 33 in a 25mph crosswind, you appreciate a proper boot. Slide it on, snug it down, done. In our experience it’s the easiest and most consistent way to weatherproof a jumper, period.

We’ve seen too many jobs where somebody saved $40 a cable on no-name jumpers and then spent eight hours on a tower trying to figure out which of the four was bad. Don’t be that person.

The Connector Mismatch Trap

Here’s the gotcha that catches the most people: the two antennas we recommend don’t have the same connectors.

  • The Baicells 436Q has N-Type female connectors on the radio (×4).
  • The KP Performance KPP-3SX4-65 has N-Type female connectors on the antenna (×4).
  • The Alpha Wireless AW3161-M-F-V2 has 4.3-10 female connectors on the antenna (×4).

Which means depending on which antenna you pick, you order different jumpers:

Antenna Jumpers You Need (×4)
KP Performance KPP-3SX4-65 N-Type Male ↔ N-Type Male
Alpha Wireless AW3161-M-F-V2 N-Type Male ↔ 4.3-10 Male

This is the single most common ordering mistake we see customers make. Somebody picks the Alpha Wireless sector, orders an N-to-N jumper kit, and now they’ve got a tower trip planned, a boom rental on the calendar, and the wrong cables in a box. Read the connectors twice. Order the jumpers once.

When in doubt, send us a note before you place orders with Gamma and the antenna vendor. We don’t stock these line items ourselves, but we’ll happily double-check the model numbers and connector types against your radio so nothing arrives mismatched.

The Two Antennas We Actually Recommend

Option 1: KP Performance KPP-3SX4-65 (The Budget Path)

If you’re putting up a single 436Q sector to bring service to a hilltop or a small footprint, the KP Performance KPP-3SX4-65 is a totally legitimate antenna. It’s a 4-port, 65° azimuth sector with 18.1 dBi gain, it covers 3.5GHz to 4.2GHz (which includes the full CBRS band), and it has N-Type connectors to match the 436Q, so your jumpers are straight N-to-N pigtails with no adapters and no surprises.

It’s the simpler buy. Order the antenna direct from KP Performance (or a KP distributor like Winncom or DoubleRadius), order matching N-to-N jumpers from Gamma, mount it, point it, level it, done.

You’re giving up one thing: variable electrical tilt. The KP has 3.5° of fixed electrical downtilt baked into the radiation pattern, plus mechanical adjustment at the mount. What you can’t do is dial in the electrical tilt to fit the specific terrain or customer distribution. If the fixed 3.5° pattern doesn’t quite fit the site, you adjust the bracket physically and lean the antenna. That works. Operators have been deploying sectors this way for as long as there have been sectors. But it has real limitations we’ll cover in the next section.

Option 2: Alpha Wireless AW3161-M-F-V2 (The Preferred Path)

The Alpha Wireless AW3161-M-F-V2 is the sector we’d put up on our own sites if we were spending our own money. It’s also a 4-port, 65° azimuth, 3300–3800MHz sector with 18 dBi gain, but with two important differences:

  1. The connectors are 4.3-10 female, not N-Type. That means matching jumpers (see the table above), and it also means a smaller, cleaner connector family that’s been adopted across most modern carrier RF gear for a reason.
  2. It has MET (Manual Electrical Tilt).

That second bullet is the entire reason this antenna is on our preferred list. Let me explain what it actually does, because the marketing copy from antenna vendors on this point is almost intentionally bad.

What MET Actually Is (and Why You’d Care)

Here’s how MET actually works.

With a normal sector antenna, when you want to aim the signal at the ground instead of out at the horizon, you physically tilt the whole antenna forward on its mount. The pipe leans down. The entire radiation pattern leans down with it. Easy to install, easy to understand. That’s how the KP Performance antenna above works, and that’s how every traditional sector you’ve ever pointed works.

With a MET antenna, you don’t lean the antenna. The antenna stays physically vertical on the mount. Inside the radome, the elements are arranged in a way that lets you adjust the phase relationships between them, and that electronically steers the main RF beam downward without physically rotating the antenna. On the AW3161-M-F-V2 specifically, the adjustment is made with a tilt screw on the bottom connector plate. The marketing word for what’s happening underneath is “beamforming,” and that’s actually a fair mental model. Effectively, MET is fixed/configurable beamforming for downtilt, baked into the antenna itself.

Why do you care? When you physically tilt the antenna, every part of the radiation pattern moves with it. The main beam goes down, sure, but so does everything else around it, and the everything-else is where the trouble lives. Specifically:

  • Physical tilt breaks the spec-sheet pattern. Antenna manufacturers publish their radiation pattern at zero tilt. Once you mechanically lean a sector 8°+ forward on the mount, those numbers don’t fully apply anymore. The KP’s published 40 dB front-to-back ratio is a zero-tilt figure. Tilt the antenna physically and that number degrades.
  • Physical tilt distorts the horizontal pattern. A 65° azimuth at zero tilt is a clean 65°. The same antenna physically tilted 8° forward is no longer a clean 65°. Sector overlap gets weird, side lobes shift, install repeatability falls apart from site to site.
  • Physical tilt hurts uplink SINR at meaningful downtilt angles. Customer CPEs transmit weakly. Their signal has to find its way back into the antenna pattern. Distort the pattern with hard physical tilt and you distort the uplink, which is exactly the direction your network is most fragile in.

MET avoids that distortion. The antenna stays mechanically aligned the way it was designed, and only the vertical beam steers, anywhere from 0° to 10°. Alpha’s published numbers (30 dB front-to-back, over 20 dB upper side lobe suppression) hold up across that full tilt range, because the antenna itself isn’t moving. The result:

  • Pattern integrity preserved across the full tilt range
  • The published F/B and side-lobe numbers actually apply at the tilt you’re running
  • Better uplink SINR once you’re at meaningful downtilt
  • More consistent installs site to site
  • A foundation for tight frequency reuse, including N=1 reuse, on future radios that support it.

That last bullet is the one I want to flag specifically for 436Q customers.

On paper, the KP actually wins one spec: zero-tilt front-to-back. KP publishes 40 dB, Alpha publishes 30 dB. The catch is that 40 dB is a zero-tilt number. Lean the KP forward on a bracket and it degrades. The Alpha’s 30 dB holds across the full 0–10° MET range because the antenna isn’t physically moving.

“But I’m Running a 436Q. Does MET Even Matter?”

Fair question, and exactly the one I’d ask. The 436Q is an LTE TDD eNB. It is not a single-channel-reuse radio. The big upside of MET, being able to crank up frequency reuse aggressively, isn’t something the 436Q can fully take advantage of on its own.

Here’s the honest answer on why we still recommend MET on a 436Q deployment:

  1. You get cleaner RF coverage today. Even on a single sector with one channel, less wasted energy out the back means better SINR for your customers, more consistent install signatures, and less interference into the legacy 5GHz PtMP gear you might still have on the same tower.
  2. You’re future-proofing the site. If you eventually upgrade the radio to something carrier-grade that does support tight frequency reuse (Nokia AZQC is the obvious one), the antenna is already capable. You don’t climb the tower a second time to swap sectors.
  3. The price delta isn’t a deal-breaker. It’s a real difference between the two antennas, but it’s not the kind of difference that should change a site budget. Compared to the boom truck, the labor, the cable, and the dirt work, the antenna delta is a rounding error.

Said another way: a 436Q with an Alpha sector is a 436Q site that can become an AZQC site later with a swap of the eNB. A 436Q with a tilted-down KP sector is a 436Q site that’s locked into “tilt the next antenna down too.”

That’s the trade.

So Which Should You Buy?

The framework I actually use on the phone with customers:

Go with the KP Performance KPP-3SX4-65 if:

  • This is a one-off site and you have no plans to scale beyond it.
  • You’re genuinely cost-sensitive and need to keep this BOM as small as possible.
  • You want the absolute simplest connector story (N-to-N jumpers, no adapters, no thinking).
  • You don’t expect to swap the radio out for a higher-end platform in the next 3–5 years.

Go with the Alpha Wireless AW3161-M-F-V2 if:

  • You’re planning to build more than one CBRS site.
  • You think you might upgrade the radio platform (Nokia AZQC) within the foreseeable future.
  • You want the cleanest possible RF pattern out of the gate.
  • You’re chasing real uplink performance because your customers actually use upload (cameras, work-from-home, telemedicine, anything modern).
  • You want to do tight channel reuse later without re-flying the tower.

My honest take: if you’re a WISP that’s only ever going to put one CBRS sector up on one tower, the KP path is fine. If you’re building anything that looks like a network, buy the Alpha. You’ll be glad you did the first time you climb a different tower and the install is consistent because the antenna is doing the same job everywhere it’s mounted.

What Doesn’t Change Between Them

A bunch of things are not differences between these two paths, and I want to call them out so nobody invents a reason to overthink this:

  • CBRS coverage. Both antennas fully cover the US CBRS operating range (3550–3700 MHz) the 436Q uses. The Alpha spans 3300–3800 MHz, the KP spans 3500–4200 MHz. The overlap is enormous for any US CBRS deployment, but if you’re deploying internationally in spectrum below 3500 MHz or above 3800 MHz, check the band plan for your specific antenna before assuming one substitutes for the other.
  • SAS registration values. Antenna gain, beamwidth, azimuth, downtilt, and height above ground are all part of every CBRS SAS registration. But both these antennas publish essentially the same gain (~18 dBi) and the same beamwidth (65°), so the registered values are functionally interchangeable between them. (One thing that does matter: if you change the tilt later, by any method, the CPI/SAS data needs to be updated to match the new physical reality.)
  • Climate tolerance. Both products are real outdoor sectors built for real towers. Hot, cold, ice, sun, both are fine. We have not seen one fail thermally and the other survive. They’re peers on this.
  • Surge / lightning behavior. Both are equally exposed to surge events on a tower. Neither has a particular weakness. Standard tower grounding, surge suppression, and lightning protection apply equally.
  • Repair-after-damage. Same story. If a strike fries a sector, you replace the sector. The MET vs. non-MET distinction doesn’t make the Alpha harder to swap out than the KP.

So the entire decision really does come down to RF cleanliness, future-proofing, and the connector difference. That’s it.

Wrap

Order the radio from us. Order the antenna direct from KP Performance or Alpha Wireless. Order the matching Gamma jumpers direct from Gamma (or a Gamma distributor). Put it all up on the tower in one trip. That’s the win condition. Don’t mix N-Type jumpers with a 4.3-10 antenna. Don’t skip the weatherproof boots. Don’t buy a non-PIM-tested cable to save a few bucks. These are the kinds of decisions that look like cost optimization in a spreadsheet and look like a return trip to the site at 7am on a Saturday in real life.

If you’re buying a refurbished 436Q from us and you’d like a second set of eyes on the antenna and jumper picks before you place the orders with the other vendors, give us a call or shoot us an email. We don’t ship the antenna or the jumpers, but we’ll confirm the model numbers and connector types so nothing arrives at the site mismatched.

And if your plan is to eventually scale this into something larger (multiple sites, real network, real subscriber counts), talk to us about Vertical Axis, our sister company, for the install. Kelly’s crew builds these sites for a living and will hand you back a tower that works on day one.

Last thing, for the lawyers and the careful: this article is opinion, not engineering. It’s what Tommy and I would buy on our own towers, plus the trade-offs we’ve watched play out in the field. Your site is not our site. Validate tilt, EIRP, grounding, and SAS registration against your specific install, and make sure your CPI signs off on the SAS data before you turn the radio up.

Get the RF right the first time. The tower trips you don’t have to make are the cheapest ones you’ll ever buy.

A living article. We field-validate every antenna and jumper we recommend on real WISP sites. As new products earn a slot in the lineup, we’ll update this page. If you’ve deployed something we should be testing, drop us a line at hello@theedgemile.com.

Frequently Asked Questions

What connectors does the Baicells Nova 436Q use?

The 436Q has four N-Type female RF connectors on the radio. Your jumpers will always be N-Type Male on the radio side, with whatever connector the antenna requires on the other end.

Which antennas do you recommend for the 436Q?

Two options. The KP Performance KPP-3SX4-65 is budget-friendly, uses N-Type connectors, and has 3.5° fixed electrical downtilt plus mechanical adjustment at the mount. The Alpha Wireless AW3161-M-F-V2 is our preferred pick, uses 4.3-10 connectors, and has variable Manual Electrical Tilt (MET) across 0–10°. Both are 4-port, 65° sectors that cover the 3.5GHz CBRS family.

Does The Edge Mile sell antennas or jumpers?

No. We sell the refurbished Baicells 436Q radio and the consulting around it. The antenna and jumpers, you order direct from the vendors linked in this article (Alpha Wireless or KP Performance for the sector, Gamma Electronics for the jumpers). We’re happy to confirm your part numbers and connector types before you place those orders.

What jumpers do I need?

For the KP Performance antenna: 4 × N-Type Male ↔ N-Type Male jumpers. For the Alpha Wireless antenna: 4 × N-Type Male ↔ 4.3-10 Male jumpers. We recommend Gamma Electronics in both cases. They’re PIM-tested, well-constructed, and ship with proper weatherproof boots.

What is MET (Manual Electrical Tilt)?

MET is downtilt accomplished by electronically steering the antenna’s vertical beam, without physically leaning the entire antenna assembly forward on its mount. The antenna stays mechanically vertical. Only the RF beam aims downward. On the AW3161-M-F-V2 the adjustment is made with a tilt screw on the bottom connector plate. The most accurate mental model is to think of MET as fixed/configurable beamforming for downtilt, baked into the antenna itself.

Why does MET matter on a 436Q if the 436Q can’t do single-channel reuse?

Two reasons. First, you get pattern integrity today. The Alpha’s radiation pattern stays clean across the tilt range you actually run, which means less interference into other gear on your tower and better uplink SINR than you’d get from a physically-tilted sector at the same downtilt angle. Second, you’re future-proofing the site. If you later swap the eNB for a platform that does support tight frequency reuse (Nokia AZQC), the antenna is already capable and you don’t have to re-fly the tower to upgrade it.

Does the antenna I pick affect SAS registration?

Antenna parameters (gain, beamwidth, azimuth, downtilt, and height above ground) are part of every CBRS SAS registration. But because both antennas we recommend have functionally identical gain (~18 dBi) and beamwidth (65°), the registered values are essentially the same either way. What does matter: any time you change the tilt or materially alter the install, the CPI/SAS data needs to be updated to match the new physical reality.

Are both antennas safe in extreme climates and surge events?

Yes. Both products are real outdoor sectors designed for real towers, and both behave the same way in hot, cold, ice, and lightning-prone conditions. Standard tower grounding and surge protection apply equally to both. Neither one is meaningfully harder to replace after damage than the other.

Can The Edge Mile install the whole thing?

We sell the radio and offer remote consulting around the configuration and Rapid5GS integration, but the actual tower work (mounting the sector, running the jumpers, weatherproofing, grounding) is hands-on and not something we ship in a box. For the physical install, we work with Vertical Axis under Kelly Zacrep. Vertical Axis is our sister company. They build these sites for a living.

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Josh Lambert

Josh Lambert is a wireless network engineer and software developer specializing in private 4G and 5G deployments. He is the creator of the open source Rapid5GS.com packet core and the founder of Alabama Lightwave, a WISP serving West and Central Alabama. Josh has designed, deployed, and optimized LTE/CBRS networks for both commercial residential applications, bridging deep technical expertise with practical field experience. At TheEdgeMile.com, he helps organizations adopt proven best practices in wireless infrastructure to deliver reliable, high-performance connectivity.

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